WO2006129340A1 - 鉛蓄電池 - Google Patents
鉛蓄電池 Download PDFInfo
- Publication number
- WO2006129340A1 WO2006129340A1 PCT/JP2005/009872 JP2005009872W WO2006129340A1 WO 2006129340 A1 WO2006129340 A1 WO 2006129340A1 JP 2005009872 W JP2005009872 W JP 2005009872W WO 2006129340 A1 WO2006129340 A1 WO 2006129340A1
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- WO
- WIPO (PCT)
- Prior art keywords
- exhaust chamber
- exhaust
- chamber
- wall
- cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/70—Arrangements for stirring or circulating the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4228—Leak testing of cells or batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a lead storage battery including an exhaust structure that discharges gas while preventing escape of an electrolytic solution.
- the exhaust structure of a monoblock lead-acid battery having a plurality of cells is roughly divided into an individual exhaust system in which an exhaust plug is provided for each cell, and a gas exhausted from each cell catalyst once in an exhaust chamber.
- the collective exhaust system requires fewer parts, and the volume of the upper space of the electrode plate can be reduced, and the battery size can be reduced without reducing the battery capacity. Because of its advantages such as the ability to escape and the amount of electrolyte escape, it has come to be widely used in lead-acid batteries for vehicles.
- Patent Document 1 US Patent No. 4486516
- Patent Document 2 Japanese Patent Laid-Open No. 8-22815
- Patent Document 3 Japanese Patent Laid-Open No. 2001-84981
- a porous filter is disposed at the gas discharge port leading to the outside of the exhaust chamber power battery to prevent discharge of mist and vapor of the electrolyte, and a space is provided below the filter to provide a filter.
- An exhaust structure has been proposed to prevent clogging by clogging with electrolyte (Patent text) (Ref. 4).
- Patent Document 4 Japanese Patent Laid-Open No. 6-176748
- the electrolytic solution surface undulates when the vehicle vibrates, or the electrolytic solution surface tilts when the vehicle is climbed.
- the electrolytic solution passes through the gas discharge port that communicates the cell and the exhaust chamber, and the electrolytic solution force in the cell. S There was a risk of jumping into the exhaust chamber.
- the electrolyte force S exhaust chamber force may overflow to the outside of the battery.
- the gas exhaust function may be impaired due to the lack of space on the upper lid side of the central exhaust chamber, or that the filter may not function due to the filter falling to the floor surface of the central exhaust chamber.
- the present invention has been made in view of the drawbacks of the conventional lead-acid battery adopting the collective exhaust system, and is excellent in the gas discharging function and the electrolytic solution escape preventing function.
- the primary purpose is to provide a lead-acid battery that does not leak electrolyte when it is discharged.
- the present invention has been made in view of the shortcomings of conventional lead-acid batteries adopting a collective exhaust system, and is excellent in gas discharge and electrolyte recovery functions, and can be electrolyzed even when the battery is tilted.
- the second purpose is to provide a lead-acid battery with excellent leakage prevention function that does not leak liquid.
- the first object is achieved by adopting an exhaust structure for a lead-acid battery as follows.
- a lead storage battery according to the present invention is surrounded by a battery case 2 that houses a plurality of cells, an inner lid 3 that covers the upper surface of the battery case 2, and an upper lid 4 that covers a recess 31 of the inner lid 3.
- the space is divided by exhaust chamber spacing walls 43 44 45 to provide the same number of exhaust chambers 37 37 '37 "as the number of cells, and adjacent exhaust chambers 37 37' 37" are arranged between the exhaust chambers.
- Bulkhead 43 44 Connected via notch or through-hole 67 in 45, exhaust chamber 37 37 '37 ⁇ and cell at electrolyte wall 33 and gas outlet at floor 32 of inner lid 3 And a centralized exhaust chamber 41 that communicates with the exhaust chamber 37 37 '37, and the gas that also generates the cell force is guided to the exhaust chamber 37 37' 37 ⁇ . Thereafter, a lead storage battery having a mechanism for exhausting the battery collectively through the central exhaust chamber 41 is provided with a partition wall surrounding an opening formed by the electrolyte reflux port 33 and the gas discharge port 34.
- the lead storage battery according to the present invention is the storage battery according to (1), wherein the floor wall 32 of the exhaust chamber 37 37 '37 is lower as the distance from the communication portion with the cell communication small chamber 35 is smaller.
- the air chamber 37 37 '37 is provided with an inclination so as to increase as the distance of the communication portion with the cell communication chamber 35 increases, and the air chamber 37 37' 37 has three or more air / J, chambers by at least two partition walls 46 47.
- the partition 46 47 is provided with at least one notch 48 49, and the adjacent exhaust chambers 38 39 40 are separated by the notch 48 49 provided in the partition 46 47.
- It is a lead storage battery characterized by being arranged in a zigzag position.
- the lead storage battery according to the present invention is the storage battery according to (2), wherein the partition walls 46, 47 dividing the exhaust chambers 37, 37 ', 37 "into exhaust small chambers 38, 39, 40 are provided on the floor surface.
- the angle ⁇ formed by the partition walls 46, 47 and the exhaust chamber spacing walls 43, 44, 45 is an acute angle, and the floor wall 32 is the lowest of the partition walls 46, 47.
- the lead storage battery according to the present invention is the storage battery according to (2), wherein at least one of the plurality of exhaust chambers 37, 37 ′, 37g and the exhaust chamber 37 positioned at both ends of the battery.
- a central exhaust chamber 41 is disposed adjacent to the exhaust chamber, the exhaust chamber 37 and the central exhaust chamber 41 are partitioned by a partition wall 50, and the cell communication small chamber is formed by a notch or a through hole 51 provided in the partition wall 50.
- 35 is a lead storage battery characterized in that the exhaust chamber 40 and the central exhaust chamber 41 that are farthest from 35 are communicated with each other, and the exhaust chamber 37 and the central exhaust chamber 41 are separated by a partition wall 50 except for the notch or the through hole 51. .
- the lead storage battery according to the present invention is the storage battery according to (1), wherein the concentrated exhaust chamber 41 includes a porous filter 71, and the porous filter 71 allows the upper lid 4 side and the inner lid 3 side.
- the space on the upper lid 4 side communicates with the outside of the battery via the exhaust path 73, and the floor surface of the central exhaust chamber 41 is a communication portion with the exhaust chamber 37.
- the lead storage battery is characterized in that the exhaust path 73 is disposed at a position close to the communication portion between the central exhaust chamber 41 and the exhaust chamber 37, and has an inclination so that the force increases as the force increases.
- the lead storage battery according to the present invention is the storage battery according to (5), wherein a convex portion 72 is provided on the inner surface of the upper lid 4 forming the concentrated exhaust chamber 41, and the porous filter 71 is disposed on the upper lid 4.
- the lead storage battery is characterized in that a space on the side of the upper lid 4 is formed by being fitted to a provided cylindrical partition wall 50 for compartmentalized exhaust chamber.
- the lead storage battery according to the present invention is the storage battery according to (1), wherein the floor wall 32 of the inner lid 3 is provided with a liquid injection opening 54 opened to each cell of the same number as the number of cells.
- a lead 53 characterized in that a liquid injection chamber 52 is partitioned by a partition wall 53 and an upper lid 4 surrounding the liquid injection opening 54, and the liquid injection chamber 52, the exhaust chamber 37 and the outside of the battery are hermetically sealed. It is a storage battery.
- the lead storage battery according to the present invention is the storage battery according to (1), wherein the inner lid 3 and And the upper lid 4 have the strength of the thermoplastic resin molding.
- Both the upper surface of the inner lid 3 and the inner surface of the upper lid 4 have an outer peripheral side wall 65, the exhaust chamber spacing walls 43, 44, 45, the partition walls of the cell communication small chamber 35,
- the partition wall 50 of the central exhaust chamber 41 and the partition walls 46 and 47 divided into the exhaust small chambers 38, 39, and 40 are provided, and the outer peripheral side walls 65 provided on the inner lid 3 and the upper lid 4 are heat-sealed to each other.
- the exhaust chamber spacing walls 43, 44, 45 provided on the inner lid 3 and the upper lid 4 are heat-sealed to each other so that the same number of exhaust chambers 37, 37 ', 37 g
- a lead storage battery characterized by forming a cell communication small chamber 35, exhaust small chambers 38, 39, 40, and a central exhaust chamber 41.
- the lead storage battery according to the present invention is the storage battery according to (8) described above, wherein the partition wall 50 provided on the inner surface of the upper cover 4 among the partition walls 50 partitioning the central exhaust chamber 41 and the exhaust chamber 37 has a thickness of
- the lead-acid battery is characterized in that it is larger than the thickness of the partition wall 50 provided on the upper surface of the inner lid 3.
- the lead storage battery according to the present invention is the storage battery according to (9), wherein rib-like protrusions 74 extending in the height direction of the partition wall 50 are formed on the outer surface of the partition wall 50 provided on the inner surface of the upper lid 4. It is a lead-acid battery characterized by the installation.
- the lead storage battery according to the present invention is the storage battery according to (8), wherein the inner lid 3 is provided with an alignment pin 55 when overlapping the upper lid 4, and the alignment pin 55 is provided on the upper lid 4.
- the lead-acid battery is characterized in that a cylindrical hole 66 is provided for fitting.
- the first object is similarly achieved by adopting the following structure for the exhaust structure of the lead-acid battery.
- the lead storage battery according to the present invention is a space surrounded by a battery case 2 that houses a plurality of cells, an inner lid 3 that covers the upper surface of the battery case 2, and an upper lid 4 that covers a recess 31 of the inner lid 3. And the same number of exhaust chambers 37, 37 ', 37 "and at least one centralized exhaust chamber communicating with the exhaust chambers 37, 37', 37".
- a lead-acid battery equipped with a mechanism for exhausting gas that also generates force to the outside of the battery through the exhaust chambers 37, 37 ', -1 "and the central exhaust chamber 41, the exhaust chambers 37, 37', 37 cm floor wall 32 Surrounding the electrolyte recirculation port 33 on the wall facing the cell 32 and the cylindrical body 62 extending toward the cell and the gas discharge port 34 and facing the cell
- a lead-acid battery characterized in that a cylindrical body 63 is provided, and a cutout or a through-hole 75 is provided in the wall surface of the cylindrical body 63 that surrounds the gas discharge port 34 and extends into the cell.
- a lead storage battery according to the present invention is the lead storage battery according to the above (12), wherein the gas outlet 34 is an oval or rectangular opening.
- the lead storage battery according to the present invention is the storage battery according to (12), wherein a local floor wall provided with the gas discharge port 34 among the floor walls 32 of the exhaust chambers 3, 1, 37 is provided.
- the lead storage battery is characterized in that 32 'is placed at a position farther away from the cell's electrolyte than the surrounding floor wall.
- the second object is achieved by configuring the exhaust structure of the lead-acid battery as follows.
- a lead storage battery according to the present invention comprises a battery case 2 containing a plurality of cells separated from each other by cell spacing walls 57, 58, 59 arranged at equal intervals, and an upper surface of the battery case 2. Cover the inner lid 3
- the inner lid 3 includes an upper lid 4 that covers the concave portion 31 of the inner lid 3, and the inner lid 3 includes the cell spacing walls 57, 58, 59 on the wall surface facing the cell, and the inner lid on the wall surface facing the upper lid 4. 3 with exhaust chamber spacing walls 43, 44, 45 that divide the space surrounded by the recess 31 and the upper lid 4 into the same number of exhaust chambers 37, 37 ', 37 "as the cells, and adjacent exhaust chambers 37, 37', 37 ff communicate with each other through a notch or through hole 67 provided in the exhaust chamber spacing walls 43, 44, 45, and the exhaust chambers 37, 37 ′, 37 ”and the cell are connected to the floor wall 32 of the inner lid 3.
- a centralized exhaust chamber 41 that communicates with the exhaust chamber 37 adjacent to at least one exhaust chamber 37 of the air chambers 37, 37 ', 37 ".
- the lead storage battery having a mechanism for exhausting the gas generated by the cell force to the exhaust chambers 37, 3 and 37 “and then exhausting them out of the battery via the central exhaust chamber 41, at least the central exhaust chamber 41 or a part of the exhaust chamber spacing wall 43 separating the exhaust chamber 37 adjacent to the exhaust chamber 37 and the exhaust chamber 37 ′ adjacent to the exhaust chamber 37, and the two exhaust chambers 37, 37 ′ and the openings 33, 34
- This is a lead storage battery characterized in that the position is shifted compared to the cell spacing wall 57 that partitions two cells communicating with each other.
- the lead storage battery according to the present invention is the storage battery according to (15), wherein the concentrated exhaust chamber 41 is disposed adjacent to the exhaust chamber 37 located at the end of the battery, and the exhaust chamber spacing wall 43 This is a lead storage battery characterized in that a part or all of the battery is shifted toward the center of the battery compared to the cell spacing wall 57.
- the lead storage battery according to the present invention is the storage battery according to (16), wherein cell spacing walls 57, 58, 59 are provided in parallel to the short side 11 of the side of the battery, and the concentrated exhaust chamber 41 is provided. It is a lead storage battery characterized in that it is provided adjacent to an exhaust chamber 37 located at the end on both short sides 11 side.
- the lead storage battery according to the present invention is the storage battery according to (15), wherein a suspension hook 42 is provided at the center of both short sides of the inner lid 3, and an exhaust chamber 37 adjacent to the short side is provided. Part or all of the exhaust chamber spacing wall 43 that separates the adjacent exhaust chambers 37 ⁇ from the two exhaust chambers 37, 37
- the battery of the present invention described in (1) it is possible to provide a lead-acid battery of a collective exhaust system that is less likely to leak electrolyte even when the battery is turned over.
- the batteries of the present invention described in the above (2) and (4) it is possible to provide a lead storage battery having an excellent function of separating exhaust gas and electrolyte mist contained therein and vapor.
- a lead-acid battery of a collective exhaust system that is less likely to leak electrolyte.
- the electrolytic solution can be injected after the inner lid is attached, and the electrolytic solution leaks even when the battery is turned over. It can be a lead storage battery without fear.
- the lead-acid battery that makes it difficult for the gas discharge port to be clogged with an electrolyte or foreign matter, and the cell force can smoothly transfer gas to the exhaust chamber; can do.
- the exhaust chamber adjacent to the central exhaust chamber has a sufficient size necessary for dew condensation of the electrolyte mist and vapor mixed in the exhaust gas while the gas flows in the exhaust chamber.
- a chamber can be formed. Also, even when the battery tilts and enters the electrolyte chamber in the cell, it forms an exhaust chamber that is large enough to contain the electrolyte that has entered the exhaust chamber and does not leak outside. be able to.
- the exhaust path leading from the central exhaust chamber to the outside of the battery can be set short.
- the lead storage battery includes a suspension hook that is convenient to carry, and has an exhaust chamber having a sufficient size similar to the lead storage battery according to (15). It can be a pond.
- FIG. 1 is a perspective view of the lead storage battery according to the present embodiment as viewed obliquely from above with the top cover removed.
- FIG. 2 is a plan view of the inner lid of the lead storage battery according to the same embodiment as seen from above.
- FIG. 3 is a plan view of the inner lid of the lead storage battery according to the embodiment as viewed from the cell side.
- FIG. 4 is a plan view showing an inner surface of an upper lid of the lead storage battery according to the same embodiment.
- FIG. 5 shows a state in which an upper lid is attached to the concave portion of the inner lid of the lead storage battery according to the embodiment
- FIG. 2 is a cross-sectional view taken along line AA in FIG.
- FIG. 6 is a view showing a cross section and a side view of the upper lid portion of the concentrated exhaust chamber of the lead storage battery according to the same embodiment.
- FIG. 7 is a cross-sectional view taken along the line BB in FIG. 3, with the upper lid attached to the concave portion of the inner lid of the lead storage battery according to the embodiment.
- FIG. 8 (a) is a sectional view taken along the line CC of FIG. 7, and (b) is a modification of (a).
- FIG. 1 is a perspective view of a 6-cell monoblock type lead-acid battery 1 according to an embodiment of the present invention, as viewed obliquely from above.
- 2 in FIG. 1 is a battery case, and the inside is divided into 6 cells by 5 partition walls (not shown) arranged in parallel on the short side of the side of the battery.
- a pair of positive electrode plate, negative electrode plate, and separator plate, and dilute sulfuric acid power Contains liquid (not shown).
- 3 is an inner lid mounted on the battery case 2
- 4 is an upper lid mounted on the recess of the inner lid 3.
- the battery case 2, the inner lid 3, and the upper lid 4 are all molded products made of polypropylene.
- the upper end of the partition wall provided in the recess and the lower end (not shown) of the partition wall of the upper lid 4 are heat-sealed and each is airtightly joined.
- 5 is a positive electrode terminal made of lead alloy
- 6 is a negative electrode terminal made of lead alloy.
- two concentrated exhaust chambers 41 are provided adjacent to the end exhaust chamber close to the short side of the battery.
- One hook 42 is provided in the center of each short side.
- FIG. 2 is a view of the inner lid 3 as viewed from above.
- the recess 31 provided in the inner lid 3 is divided into an inner space and an outer space of the battery by partition walls (hatched portions), and further, the inner space of the battery is divided into six cells, which are the same as the number of cells, and each of them is exhausted.
- Chamber 37, 37 ', 37 ⁇ (3 in the left half, left and right symmetrical, so the right half is omitted from the reference, and the related configuration is the same).
- a force-concentrated exhaust chamber 41 is arranged at the end of the battery to correspond to each cell. It is easier to structure the exhaust path space by moving the six exhaust chambers 37, 3, and 37 ⁇ across the cross-section and guiding the exhaust gas to the central exhaust chamber 41 and exhausting it from the central exhaust chamber 41 to the outside of the battery. It is preferable because it can be small. In this system, it is necessary to connect the six compartments formed by the partition walls so that the exhaust gas can move across.
- the electrolyte that has condensed in the exhaust chambers 37, 37 ', 37 ⁇ corresponding to each cell will partition the compartment. It is necessary to recirculate to the corresponding cell without transversal. Therefore, it is preferable to provide the exhaust chamber spacing walls 43, 44, and 45 as a barrier among the partition walls that prevent the electrolytic solution from crossing between the six sections.
- the inner surface of the upper lid 4 is also provided with an exhaust chamber partition that divides the inner space of the battery into six chambers corresponding to the exhaust chamber spacing walls 43, 44, 45 of the inner lid 3.
- the exhaust chamber partition wall Notches are provided to allow gas to move across the six chambers.
- the exhaust chamber spacing walls 43, 44, 45 that divide the chamber into 6 are not provided with a notch, and the exhaust chamber spacing walls 43, 44, 45 are provided to allow the electrolyte to flow. It would be preferable to have a barrier to prevent the crossing of six sections.
- One exhaust chamber 37 of the exhaust chambers 37, 37 ', 37' ' will be described as an example.
- 35 is a cell communication chamber, and the cell communication chamber 35 and the cell are defined as exhaust chambers.
- Electrolyte reflux port 33 for refluxing the electrolyte condensed in 37 into the cell and gas exhaust port 34 for discharging the gas generated in the cell to cell communication chamber 35 are communicated with the cell.
- the cell communication small chamber 35 is separated from the exhaust chamber 37 by a partition wall, and communicates with the exhaust chamber 37 through a notch 36 provided in the partition wall, and other than the notch 36 is separated from the exhaust chamber 37 by the partition wall. .
- the air chamber 37 is divided into three air / J chambers 38, 39, and 40 by two partition walls 46 and 47.
- Each of the partition walls 46 and 47 has one notch (48 49), and the adjacent exhaust / J and chambers (38, 39, 40) communicate with each other through notches 48, 49 provided in the partition walls 46, 47.
- the floor of the exhaust chamber 37 is inclined along the short side of the inner lid 3 so that the floor surface of the exhaust chamber 37 becomes lower as the distance from the cell communication chamber 35 increases as the distance from the cell communication chamber 35 increases. Yes.
- the notches 48 and 49 provided in the partition walls 46 and 47 are arranged so that they do not overlap on a straight line parallel to the slope provided on the floor of the exhaust chamber 37 (in the zigzag position in the figure).
- the flow path of the gas passing through the chamber 37 is lengthened. As a result, the mist and vapor of the electrolyte mixed in the exhaust gas while passing through the exhaust chamber 37 are efficiently condensed and removed from the exhaust gas.
- the central exhaust chamber 41 is separated from an exhaust chamber 37 (exhaust small chamber 39 in the figure) by a partition wall 50, and three gas / J chambers 38, 39 are formed by a notch 51 provided in the partition wall 50. , 40 communicates with the exhaust chamber 40 located farthest from the cell communication chamber 35.
- Reference numeral 52 denotes a liquid injection chamber, which is provided with an opening 54 opened to a cell, and is surrounded by a partition wall 53 and an exhaust chamber 37 (in the figure, an exhaust small chamber 40).
- Reference numeral 55 denotes an alignment pin used when the upper lid 4 is attached to the concave portion 31 of the inner lid 3, which is fitted into a cylindrical hole described later provided in the upper lid 4.
- Reference numeral 56 denotes a bonding projection for strengthening the bonding with the upper lid 4.
- 57, 58, 59 surrounded by a broken line in FIG. 2 are between the cells provided on the lower surface (cell side wall surface) of the inner lid 3.
- the partition wall 43 between the exhaust chamber 37 and the central exhaust chamber 41 adjacent to the exhaust chamber 37 is an opening (electrolyte reflux) provided in the exhaust chambers 37 and 3 and the floor wall 32 of the inner lid 3.
- Mouth 33 Position of cell spacing wall 57 arranged between two cells communicating with each other via gas discharge port 34) is shifted toward the center of the battery.
- the space volume of the exhaust chamber 37 adjacent to the central exhaust chamber 41 can be made equal to or smaller than the other exhaust chambers 3 and 37. Can be prevented.
- the exhaust chamber spacing wall 44 is also shifted toward the center of the battery as compared to the cell spacing wall 58. As described above, the space between the three exhaust chambers 37 37 ′ 37 can be made substantially equal by shifting the position of the partition wall 4344 between the exhaust chambers relative to the cell interval wall 5758.
- FIG. 3 is a diagram showing the directional force of the inner lid 3 facing the cell.
- the hatched portions are the end face of the side wall 60 and the end face of the cell spacing wall 57 58 59 which are joined to the side wall of the battery case 2 and the open end face of the cell spacing wall by heat fusion.
- the battery is divided into six cells by five cell spacing walls.
- the floor wall 32 of the inner lid 3 is provided with an opening comprising the same number of electrolyte reflux ports 33 and gas discharge ports 34 as the number of cells, and the cells and the exhaust chamber communicate with each other through the openings. .
- a cylindrical body 62 that surrounds the electrolyte reflux port 33 and extends toward the cell, and a gas discharge port 34 are enclosed toward the cell.
- a cylindrical body 63 that extends is arranged.
- FIG. 4 is a view of the upper lid 4 as viewed from the inner surface, and the exhaust chamber spacing wall 43 44 45 and the outer circumferential partition wall are positioned so as to overlap with the partition walls (exhaust chamber spacing wall and outer circumferential partition wall) provided on the upper surface of the inner lid 3. 65, and further, a cylindrical hole 66 fitted to the positioning pin 55 provided in the inner lid 3.
- the exhaust chamber spacing walls 43 44 45 that divide the battery space into six are each provided with a notch 67 to form a path to enable cross-sectional transition between exhaust gas forces S exhaust chambers.
- a baffle plate 68 for suppressing the migration of the electrolyte is disposed at a position facing the notch 67.
- a notch 69 is provided in the partition wall that separates the electrolyte recirculation port 33 side and the gas exhaust port 34 side of the cell communication small chamber 35 to form a path for transferring to the gas power exhaust chamber 37 where the cell force is also discharged.
- the baffle plate 70 is disposed at a position facing the notch 69 to suppress the transition to the electrolyte solution S exhaust chamber 37 where the cell force is discharged by mixing with gas.
- the partition wall of the inner lid 3 and the partition wall of the upper lid 4 are arranged at positions that exactly overlap, and the upper end of the partition wall of the inner lid 3 and the upper lid
- the lower ends of the four partition walls are joined by heat fusion.
- the partition wall 53 surrounding the injection chamber 52 is not provided with a notch, and the injection chamber 52 is joined by joining the partition wall of the upper lid 4 and the partition wall of the inner lid 3. And the exhaust chamber 37, the injection chamber 52, and the space outside the battery are hermetically isolated.
- FIG. 5 is a diagram showing a state in which the upper lid 4 is attached to the concave portion 31 of the inner lid 3 and the partition provided in the concave portion 31 of the inner lid 3 and the partition provided on the inner surface of the upper lid 4 are joined.
- FIG. 5 is a cross-sectional view taken along line AA in FIGS. 2 and 4.
- FIG. The floor wall 32 of the recess 31 of the inner lid 3 is inclined so as to be lower as it is closer to the cell communication chamber 35 and higher as it is farther from the cell communication chamber 35.
- FIG. 5 is a diagram showing a state in which the upper lid 4 is attached to the concave portion 31 of the inner lid 3 and the partition provided in the concave portion 31 of the inner lid 3 and the partition provided on the inner surface of the upper lid 4 are joined.
- FIG. 5 is a cross-sectional view taken along line AA in FIGS. 2 and 4.
- the floor wall 32 of the recess 31 of the inner lid 3 is inclined so as to be lower
- partition walls 46 and 47 that divide exhaust chamber 37 into three exhaust small chambers 38, 39, and 40 are inclined with respect to the inclination of floor wall 32, and exhaust chamber spacing wall 43, 44, 45 and bulkhead 46, 47 angle ⁇ is an acute angle, and notches 48, 49 of bulkhead 46, 47 are placed at the lowest position on the inclined floor surface, so the battery is in a normal state.
- the electrolyte force condensed in the exhaust chamber 37 S moves to the electrolyte reflux port 33 side along the slope provided on the floor wall 32 of the exhaust chamber, and there is no risk of stagnation .
- the internal space of the cell is hermetically sealed from the exhaust chamber 37, and further to the external space of the battery, except for the partition wall notch 36 provided to connect the cell communication small chamber 35 and the exhaust chamber 37. If the battery is accidentally turned over, the electrolyte overflows into the cell communication chamber 35 from the cell holder, fills the cell communication chamber 35, and the electrolyte surface is provided to allow the cell communication chamber 35 and the exhaust chamber 37 to communicate with each other. Partition wall notch leading to 36. As described above, the inner space of the cell is notched. Is isolated from the external space of the battery except for air, so that air cannot enter the cell when the notch 36 is blocked with the electrolyte, and the electrolyte that has reached the notch 36. Since the atmospheric pressure is applied to the surface, the electrolyte solution in the cell can be used either when the cell communication chamber 35 is turned over so that the cell communication chamber 35 is turned down or when the cell communication chamber 35 is turned over. Force S Can stop entering the exhaust chamber 37.
- the electrolytic solution condensed in the exhaust chamber 37 separates the exhaust chamber 37 into the exhaust chambers 38, 39, and 40. Since it moves to the cell communication small chamber 35 side through the cutouts 48 and 49 provided in, it is possible to prevent the electrolyte from entering the central exhaust chamber 41.
- the cell communication small chamber 35 is turned over so as to be on the upper side, as shown in FIGS. 2 and 4, at least two (two in this embodiment) partition walls 46 and 47 are provided in the exhaust chamber 37.
- each partition 46, 47 notches 48, 49 Arrange each partition 46, 47 notches 48, 49 in zigzag with respect to the inclination of the floor surface of the exhaust chamber 37, and arrange so that they do not overlap in a straight line parallel to the inclination Therefore, even when the battery is rolled over, the partition walls do not overlap in the vertical direction, so that the electrolyte condensed in the exhaust chamber 38 close to the cell communication chamber 35 is prevented from passing through the intermediate exhaust chamber 39. be able to.
- partition walls 46 and 47 that divide the exhaust chamber 37 are inclined, and the exhaust chamber space walls 43, 44, 45 and the angle ⁇ formed by the partition walls 46, 47 are made acute so that each exhaust chamber (38, 39, 40) forms a liquid storage space and prevents the electrolytic solution condensed in the exhaust chamber 37 from moving to the central exhaust chamber 41.
- the ends of the partition walls 46 and 47 that contact the notches 48 and 49 are directed toward the cell communication chamber 35 (the floor wall 32 of the exhaust chamber 37). It is preferable to bend it with an urging force in a direction in which it is low.
- the central exhaust chamber 41 is positioned almost in the center of the short side of the upper lid 4, the central exhaust chamber 41 communicates with the exhaust chamber 40 farthest from the cell communication chamber 35, and the cell communication chamber 35 is on the lower side. In this state, the electrolytic solution condensed in the exhaust chamber 37 is transferred to the concentrated exhaust chamber 41 by positioning the cell communication chamber 35 on the upper side of the exhaust chamber 40. It is more preferable because it can be prevented.
- the filter 71 is difficult to position because it is fitted and locked to the cylindrical partition wall 50 of the concentrated exhaust chamber 41.
- a convex portion 72 on the inner surface of the upper lid 4, the inner wall surface of the upper lid 4 and the filter 71 are arranged. An interval can be provided between the two. This method is a preferable method because it is simple and can secure a constant interval.
- the shape and quantity of the convex portion 72 are not particularly limited, but in order to make the distance between the filter 71 and the inner wall surface of the upper lid 4 parallel, it is provided on the inner peripheral portion of the concentrated exhaust chamber 41 on the inner wall surface of the upper lid 4.
- the gas transferred to the central exhaust chamber 41 moves in the thickness direction in the filter 71, reaches the upper cover 4 side space of the central exhaust chamber 41, and is discharged outside through the exhaust passage 73. Is done.
- the concentrated exhaust chamber 41 is preferably provided adjacent to the exhaust chamber 37 located at the end of the battery.
- the central exhaust chamber 41 includes A porous filter 71 is installed to prevent the electrolyte that could not condense in the exhaust chamber 37 from being discharged outside the battery.
- concentrated exhaust should be used. If the filter 71 in the chamber 41 becomes clogged, there is a risk of hindering exhaust.
- two centralized exhaust chambers 41 are provided on the left and right sides, and all exhaust chambers 37, 37 ' It is preferable to keep communication through the notch 67 provided in 43, 44, 45.
- the mechanical strength of the bulkhead 50 of the upper lid 4 is made higher than that of the bulkhead 50 of the inner lid 3 so that deformation of the bulkhead 50 of the upper lid 4 is less likely to occur when both are joined. It is preferable. Specifically, it is preferable to make the thickness of the partition wall 50 of the upper lid 4 larger than the thickness of the partition wall 50 of the inner lid 3 as shown in FIG.
- the ratio of the thicknesses of the two is not particularly limited, but the thickness of the partition wall 50 of the upper lid 4 is preferably set to 1.5 to 3 times the thickness of the partition wall 50 of the inner lid 3.
- the thickness of the partition wall 50 of the upper lid 4 is set to be large, and rib-shaped protrusions 74 are provided on the outer peripheral surface of the partition wall 50 of the upper lid 4 in the height direction of the partition wall.
- the shape, size, and quantity of the rib-like protrusions 74 are not particularly limited, but it is preferable that the rib-like protrusions 74 are arranged at equal intervals along the outer periphery of the partition wall 50 at least three places.
- the inner lid 3 is provided with a liquid injection port 54.
- the injection port 54 By providing the injection port 54, it is possible to inject the liquid after the inner lid 3 is mounted on the battery case 2, and even if the battery is shaken or vibrated in the battery assembly process after the injection, the electrolyte solution There is no risk of overflow and handling is easy.
- the upper lid 4 is attached to the recess 31 of the inner lid 3 and the partition walls of the inner lid 3 and the upper lid 4 are heat-sealed to form an airtight seal.
- FIG. 6 is a view showing the structure of the upper lid 4 side and the exhaust path 73 in the concentrated exhaust chamber 41.
- the gas that has also flowed downward in the central exhaust chamber 41 passes through the filter 71 fitted in the partition wall 57, moves to a space that contacts the inner surface of the upper cover 4, and passes through the exhaust path 73 to the outside of the battery. Is discharged.
- a space having a certain size is secured on the inner surface of the upper lid 4 by the convex portions 72 provided on the inner surface of the upper lid 4.
- FIG. 7 is a cross-sectional view of the inner lid 3 shown in FIG. 3 taken along line BB in the figure.
- FIG. 7 shows the side wall 21 of the battery case 2, the opening end portions of the cell spacing walls 57 and 58, and a part of the upper lid 4.
- the end face of the partition wall provided on the wall surface facing the cell in the floor wall 32 of the inner lid 3 and the open end portions of the side wall 21 of the battery case 2 and the cell spacing walls 57 and 58 are hermetically joined by heat sealing.
- the partition wall provided in the recess on the upper surface of the floor wall 32 of the inner lid 3 and the partition wall provided on the inner surface (the lower surface in the figure) of the upper lid 4 are hermetically joined by heat-sealing.
- An exhaust chamber 37 surrounded by is formed.
- the gas generated by the cell cartridge passes through the gas discharge port 34 to the cell communication chamber 35, and the notch 6 7 provided in the exhaust chamber interval wall (43, 44, 45) of the upper lid 4 is provided.
- Gas evacuation chamber 37 The electrolyte mist and vapor mixed in the gas while moving inside the gas chamber are condensed to form a liquid, which is returned to the cell from the exhaust chamber 37 through the electrolyte reflux port 33. .
- the cylindrical body 62 that surrounds the electrolyte reflux port 33 and extends toward the cell and the cylindrical body that surrounds the gas discharge port 34 and extends toward the cell.
- a body 63 is provided.
- the cylindrical bodies 62 and 63 are configured such that when the electrolyte surface in the cell undulates, the top of the wave (the wave front) or the splash of the electrolyte generated by the wave colliding with the wall surface of the battery case 2 causes the electrolyte reflux port 33 to And prevents gas from reaching the gas outlet 34.
- the electrolyte solution The surface is divided into small areas, and functions to suppress the electrolyte from reaching the electrolyte reflux port 33 and the gas discharge port 34 when the battery is tilted.
- the thickness and the cross-sectional shape of the cylindrical body 62 and the cylindrical body 63 are not particularly limited, the electrolyte does not reach the electrolyte reflux port 33 or the gas discharge port 34 when the battery is tilted. In order to achieve this, it is desirable to partition the electrolyte surface in as small an area as possible. For cylinders 62 and 63, the thickness is smaller, U is preferred.
- a notch or a through hole on the wall surface of the cylindrical body 63 that surrounds the gas discharge port 34 and extends toward the cell.
- the size and position of the notch or the through hole are not particularly limited. However, in order to prevent the electrolyte from reaching the gas discharge port 34 when the electrolyte is undulated as described above, the smaller one is not preferable. preferable. However, in order for the cell force to smoothly discharge the gas, it is desirable that the upper end of the notch be above the electrolyte surface even when the electrolyte in the cell undulates or the battery tilts.
- the cylindrical body 63 be sized so that when the tubular body 63 is wetted with the electrolytic solution, the electrolytic solution forms a liquid film and does not block the notches or the through holes.
- the notches and through holes provided in the cylindrical body 63 have a vertically long shape.
- the upper end of the notch or the through hole is set on the electrolyte surface, and it is made as thin as possible to prevent the electrolyte from reaching the gas outlet 34 when the electrolyte undulates. It is possible to prevent the notch and the through-hole from being blocked by the electrolyte liquid film.
- FIG. 8 is a cross-sectional view of the portion indicated by line CC in FIG. As described above, a through hole 75 is provided in the wall surface of the cylindrical body 63 if it is a vertically long cutout.
- the through hole 75 is provided in the wall surface of the cylindrical body 63 that surrounds the gas discharge port 34 and extends toward the cell, so that the electrolytic solution is provided in comparison with the electrolytic solution reflux port 33. It is easy for electrolyte droplets to reach the gas outlet 34 when the surface is wavy. Electrolyte droplets that reach the gas outlet 34 may form a liquid film at the gas outlet 34 and block it. If the gas distribution outlet is clogged with a liquid film, and condensed electrolyte accumulates on it, there is a risk of hindering gas from being discharged from the cell through the gas outlet 34. In order to prevent the formation of a liquid film, it is preferable that the shape of the gas outlet 34 is not a circle or a square but an elongated oval or a rectangle as shown in FIG.
- a liquid film is formed at the gas outlet 34 and the gas outlet 34 is blocked, or foreign substances floating on the electrolyte surface at the gas outlet 34 (sponge-like lead that has fallen off the electrode plate).
- a partition was provided so as to surround the local floor wall 32 ⁇ provided with the gas discharge port 34 provided in the floor wall 32 of the inner lid 3, and the cell communication small chamber 35 was partitioned, and dew condensation occurred in the exhaust chamber 37.
- the electrolyte is prevented from entering the cell communication chamber 35 and at the same time, the gas from which the cell force has been exhausted passes through the notch 67 provided in the exhaust chamber spacing wall (43, 44, 45) of the top cover 4 and the exhaust chamber (37, 37 ′, 3 37 ”).
- the concave portion 31 of the inner lid 3 is provided with the pin-shaped convex portions 55 for alignment with the upper lid 4, and the upper lid 4
- a cylindrical hole 66 for fitting with the pin-like convex portion 55 is provided on the inner surface.
- the suspension hook 42 In order to support the battery stably (so that the battery does not tilt), it is preferable to provide the suspension hook 42 at the center of both short sides of the side of the battery. Also, even if the battery is tilted, in order to minimize the influence of the tilt of the electrolyte surface relative to the wall surface of the battery case 2, the cell spacing wall 57 is parallel to the short side (11 in FIG. 2) of the side of the battery. 58, 59 are preferably arranged. However, when the suspension hook 42 is provided on the short side 11 of the inner lid 3, the space volume of the exhaust chamber 37 adjacent to the short side 11 provided with the suspension hook 42 is extremely reduced. According to the present embodiment, as shown in FIG.
- the cell spacing walls 57, 58, 59 are arranged in parallel to the short side 11 of the side of the battery, and are suspended at the center of the short side 11 of the inner lid 3. Even if the battery has the support hook 42, the suspension hook 42 is provided by arranging the exhaust chamber spacing walls 43, 44, 45 regardless of the positions of the cell spacing walls 57, 58, 59.
- the space volume of the exhaust chamber 37 adjacent to the side can be the exhaust chamber 37 having a size comparable to the other exhaust chambers 37 'and 37 "(located on the center side of the battery).
- the present invention is not limited to the above-described embodiment.
- the position of the central exhaust chamber 41 is not particularly limited. Regardless of the position of the cell spacing walls 57, 58, 59, between the exhaust chambers that define the exhaust chamber 37 adjacent to the central exhaust chamber 41. By setting the position of the partition wall 43, the object of the present application can be achieved.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200580049936A CN100576606C (zh) | 2005-05-30 | 2005-05-30 | 铅蓄电池 |
| HK08111793.8A HK1120929B (en) | 2005-05-30 | Lead battery | |
| PCT/JP2005/009872 WO2006129340A1 (ja) | 2005-05-30 | 2005-05-30 | 鉛蓄電池 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2005/009872 WO2006129340A1 (ja) | 2005-05-30 | 2005-05-30 | 鉛蓄電池 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006129340A1 true WO2006129340A1 (ja) | 2006-12-07 |
Family
ID=37481277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/009872 Ceased WO2006129340A1 (ja) | 2005-05-30 | 2005-05-30 | 鉛蓄電池 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100576606C (ja) |
| WO (1) | WO2006129340A1 (ja) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008016144A1 (en) * | 2006-08-04 | 2008-02-07 | Gs Yuasa Corporation | Lead accumulator |
| JP2008186690A (ja) * | 2007-01-30 | 2008-08-14 | Gs Yuasa Corporation:Kk | 鉛蓄電池 |
| WO2019131261A1 (ja) * | 2017-12-25 | 2019-07-04 | 株式会社Gsユアサ | 鉛蓄電池 |
| JP2020017461A (ja) * | 2018-07-27 | 2020-01-30 | 株式会社Gsユアサ | 鉛蓄電池 |
| JP2020017460A (ja) * | 2018-07-27 | 2020-01-30 | 株式会社Gsユアサ | 鉛蓄電池 |
| WO2020021910A1 (ja) * | 2018-07-27 | 2020-01-30 | 株式会社Gsユアサ | 鉛蓄電池 |
| CN111512470A (zh) * | 2017-12-25 | 2020-08-07 | 株式会社杰士汤浅国际 | 铅蓄电池 |
| US11424507B2 (en) | 2017-12-25 | 2022-08-23 | Gs Yuasa International Ltd. | Lead-acid battery having container, positive and negative electrodes, lid, communication chamber, exhaust hole, and vent hole |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101960645B (zh) * | 2008-09-26 | 2012-09-26 | 松下电器产业株式会社 | 铅蓄电池的制造方法和铅蓄电池 |
| JP2015050114A (ja) * | 2013-09-03 | 2015-03-16 | 株式会社Gsユアサ | 蓄電池用栓、蓄電池 |
| JP6596874B2 (ja) * | 2015-03-30 | 2019-10-30 | 株式会社Gsユアサ | 鉛蓄電池及び鉛蓄電池の蓋部材の製造方法 |
| CN108767140B (zh) * | 2018-04-18 | 2021-12-14 | 天能电池集团股份有限公司 | 一种efb起停蓄电池盖 |
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| JPS55100648A (en) * | 1979-01-26 | 1980-07-31 | Furukawa Battery Co Ltd:The | Manufacturing method of heat sealed storage battery |
| JPS55109273U (ja) * | 1979-01-27 | 1980-07-31 | ||
| US4486516A (en) * | 1982-10-28 | 1984-12-04 | General Motors Corporation | Low silhouette venting system for electric storage battery |
| JPH0822815A (ja) * | 1994-07-07 | 1996-01-23 | Yuasa Corp | 蓄電池の排気構造 |
| US5840439A (en) * | 1997-02-06 | 1998-11-24 | Douglas Battery Manufacturing Company | Battery cover |
| US5843593A (en) * | 1997-02-06 | 1998-12-01 | Douglas Battery Manufacturing Company | Leak resistant battery cover |
| JP2000084981A (ja) * | 1998-09-10 | 2000-03-28 | Misawa Homes Co Ltd | 金型及び成形方法 |
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- 2005-05-30 WO PCT/JP2005/009872 patent/WO2006129340A1/ja not_active Ceased
- 2005-05-30 CN CN200580049936A patent/CN100576606C/zh not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS55100648A (en) * | 1979-01-26 | 1980-07-31 | Furukawa Battery Co Ltd:The | Manufacturing method of heat sealed storage battery |
| JPS55109273U (ja) * | 1979-01-27 | 1980-07-31 | ||
| US4486516A (en) * | 1982-10-28 | 1984-12-04 | General Motors Corporation | Low silhouette venting system for electric storage battery |
| JPH0822815A (ja) * | 1994-07-07 | 1996-01-23 | Yuasa Corp | 蓄電池の排気構造 |
| US5840439A (en) * | 1997-02-06 | 1998-11-24 | Douglas Battery Manufacturing Company | Battery cover |
| US5843593A (en) * | 1997-02-06 | 1998-12-01 | Douglas Battery Manufacturing Company | Leak resistant battery cover |
| JP2000084981A (ja) * | 1998-09-10 | 2000-03-28 | Misawa Homes Co Ltd | 金型及び成形方法 |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008016144A1 (en) * | 2006-08-04 | 2008-02-07 | Gs Yuasa Corporation | Lead accumulator |
| US8323811B2 (en) | 2006-08-04 | 2012-12-04 | Gs Yuasa International Ltd. | Lead acid storage battery |
| JP5115199B2 (ja) * | 2006-08-04 | 2013-01-09 | 株式会社Gsユアサ | 鉛蓄電池 |
| JP2008186690A (ja) * | 2007-01-30 | 2008-08-14 | Gs Yuasa Corporation:Kk | 鉛蓄電池 |
| CN111512470A (zh) * | 2017-12-25 | 2020-08-07 | 株式会社杰士汤浅国际 | 铅蓄电池 |
| JP2019114435A (ja) * | 2017-12-25 | 2019-07-11 | 株式会社Gsユアサ | 鉛蓄電池 |
| WO2019131261A1 (ja) * | 2017-12-25 | 2019-07-04 | 株式会社Gsユアサ | 鉛蓄電池 |
| US11424507B2 (en) | 2017-12-25 | 2022-08-23 | Gs Yuasa International Ltd. | Lead-acid battery having container, positive and negative electrodes, lid, communication chamber, exhaust hole, and vent hole |
| JP7151080B2 (ja) | 2017-12-25 | 2022-10-12 | 株式会社Gsユアサ | 鉛蓄電池 |
| JP2020017461A (ja) * | 2018-07-27 | 2020-01-30 | 株式会社Gsユアサ | 鉛蓄電池 |
| JP2020017460A (ja) * | 2018-07-27 | 2020-01-30 | 株式会社Gsユアサ | 鉛蓄電池 |
| WO2020021910A1 (ja) * | 2018-07-27 | 2020-01-30 | 株式会社Gsユアサ | 鉛蓄電池 |
| JP7210925B2 (ja) | 2018-07-27 | 2023-01-24 | 株式会社Gsユアサ | 鉛蓄電池 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101185183A (zh) | 2008-05-21 |
| HK1120929A1 (zh) | 2009-04-09 |
| CN100576606C (zh) | 2009-12-30 |
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