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WO2012086526A1 - Unité à élément ctp attachée de l'extérieur, et batterie correspondante - Google Patents

Unité à élément ctp attachée de l'extérieur, et batterie correspondante Download PDF

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Publication number
WO2012086526A1
WO2012086526A1 PCT/JP2011/079124 JP2011079124W WO2012086526A1 WO 2012086526 A1 WO2012086526 A1 WO 2012086526A1 JP 2011079124 W JP2011079124 W JP 2011079124W WO 2012086526 A1 WO2012086526 A1 WO 2012086526A1
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WO
WIPO (PCT)
Prior art keywords
ptc element
terminal
element unit
cap
external
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
Application number
PCT/JP2011/079124
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English (en)
Japanese (ja)
Inventor
坂口誠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FDK Corp
Original Assignee
FDK Tottori Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FDK Tottori Co Ltd filed Critical FDK Tottori Co Ltd
Publication of WO2012086526A1 publication Critical patent/WO2012086526A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/01—Mounting; Supporting
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/581—Devices or arrangements for the interruption of current in response to temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/10—Temperature sensitive devices
    • H01M2200/106—PTC
    • 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 an external PTC element unit having a current protection function and a battery to which the external PTC unit is attached.
  • an assembled battery is mounted as a power source for portable electric devices such as cameras and lights.
  • a PTC (Positive Temperature Coefficient) element is used as the protection element (Patent Documents 1 and 2).
  • Etc. This PTC element usually has a low resistance, but its electrical resistance increases when a large current flows through the battery and the battery temperature rises. Therefore, if this PTC element is used, even if a circuit element or the like is short-circuited and a large current flows at the time of failure of the electric device, the battery current can be cut off.
  • Patent Document 1 a PTC element is mounted on a flat terminal side or a convex terminal side of a battery. Moreover, in patent document 2, the PTC element is mounted
  • a flat terminal has a relatively large area, and when a PTC element or a lead plate is attached to the entire surface of the terminal, the planar size of the PTC element or the lead plate increases, resulting in an increase in component costs.
  • the planar size of the PTC element or the lead plate is reduced and the PTC element is attached to a part of the flat terminal, the distance between the flat surface of the terminal and the lead plate (distance corresponding to the thickness of the PTC element) becomes short. . For this reason, there is a possibility that the mating terminal connected to the battery comes off the position of the lead plate and contacts the flat surface of the battery terminal. In this case, the PTC element is short-circuited, and overcurrent cannot be prevented.
  • the PTC element In order to avoid this, it is necessary to insulate the flat surface of the battery terminal. However, in addition to the time and effort, the cost of the components increases. Therefore, in order to reduce the component cost, it is preferable to mount the PTC element on the convex terminal side having a relatively small area.
  • JP 2000-340192 A Japanese Utility Model Publication No. 1-81870
  • Patent Document 1 when a PTC element is mounted on the upper surface of a battery-shaped convex terminal (terminal protrusion), a disk-shaped metal plate having a size substantially equal to the upper surface of the terminal is used, and the periphery of the metal plate is placed on the upper surface of the terminal.
  • the PTC element is laminated on the metal plate by welding and fixing.
  • a space for providing the PTC element is reduced, and it may be impossible to install a PTC element having sufficient performance for preventing overcurrent.
  • the installation space of a PTC element is ensured and a welding part is decreased, joining strength will become insufficient.
  • the battery of Patent Document 2 also has the same problem because the PTC element is welded and fixed to the upper surface of the convex terminal of the battery.
  • Patent Document 1 also proposes a battery in which a PTC element is installed at a base portion of a convex terminal (a terminal flat portion provided around a terminal protruding portion).
  • a PTC element is installed at a base portion of a convex terminal (a terminal flat portion provided around a terminal protruding portion).
  • some lithium batteries have different polarities between the convex terminal and the base of the terminal that is one step lower than that.
  • a PTC element is provided at the base of the convex terminal, a short circuit between the electrodes becomes a problem. Therefore, a configuration such as providing an insulator between metal members to avoid the short circuit becomes complicated, and it is difficult to realize the configuration.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide an external PTC element unit that can be reliably attached to a terminal protruding portion of a terminal in a battery. Another object of the present invention is to provide a battery in which an external PTC element unit can be attached to the terminal protruding portion of a terminal and overcurrent can be reliably prevented.
  • An external PTC element unit that can be attached to a battery having a terminal protrusion at the center of the terminal, and has a first main surface and a second main surface and is equivalent to the terminal protrusion in plan view
  • a cap-like support formed of a conductive material comprising a top plate having dimensions and a shape, and a side wall portion projecting vertically from the outer peripheral portion of the second main surface of the top plate;
  • a PTC element having a back surface and an element surface, the element back side being bonded and fixed on the first main surface of the top plate, and an external bonded and fixed on the element surface to cover the PTC element
  • a terminal plate for connection wherein the side wall portion is connectable to a side surface of the terminal protruding portion in a state in which the second main surface side of the top plate is disposed opposite to the upper end surface of the terminal protruding portion.
  • a featured external PTC element unit is connectable to a side surface of the terminal protruding portion in a state in which the second main surface
  • the PTC element unit can be provided at the upper end of the terminal protruding portion of the battery terminal. Further, in the battery, the upper end surface of the terminal projecting portion has a relatively small area, and the PTC element unit can be downsized as compared with the case where it is provided on a flat terminal. Furthermore, since the side wall portion of the cap-like support is fixed to the side surface of the terminal protruding portion, even if a lateral load is applied to the PTC element unit, the problem that the fixing position of the PTC element unit is shifted is avoided. can do.
  • the PTC element is formed in a disc shape and has a through hole at the center thereof, the weight of the element can be reduced.
  • a conductive member is laminated on the surface of the external connection terminal plate in a state in which a part of the external connection terminal plate projects from the external connection terminal plate.
  • An external PTC element unit which is fixed by welding to the center portion of the external connection terminal plate.
  • the side wall portion of the cap-shaped support is divided into a plurality of pieces with the notch portion therebetween, the side wall portion is easily bent toward the terminal protruding portion side. Can be reliably contacted.
  • a plurality of projection welding projections are formed on the inner surface of the side wall portion divided into a plurality of pieces so as to face each other across the center of the cap-shaped support.
  • External PTC element unit External PTC element unit.
  • the side wall portion can be reliably welded to the side surface of the terminal protruding portion. Further, during projection welding, one electrode of the pair of electrodes is brought into contact with the side wall portion of the cap-shaped support, and the other electrode is brought into contact with the side surface of the terminal protruding portion exposed at the position of the notch portion. And resistance welding can be performed reliably. Furthermore, when the side wall portion of the cap-shaped support is welded, heat is not easily transmitted to the PTC element provided on the top plate of the cap-shaped support, so that the performance deterioration of the PTC element due to thermal stress can be prevented.
  • the installation space of a PTC element decreases.
  • the side wall portion of the cap-shaped support is welded, and the top plate has the same dimensions as the terminal protruding portion, so that a sufficient installation space for the PTC element can be secured.
  • a recess is formed in the first main surface of the top plate of the cap-shaped support, and the PTC element is disposed and soldered in the recess.
  • An external PTC element unit is formed in any one of means 1 to 5.
  • the PTC element can be reliably arranged at the position of the concave portion, and the PTC element and the cap It can be easily connected to the shaped support by soldering. Furthermore, according to this configuration, even if a weight is applied to the PTC element unit in the lateral direction, the problem that the PTC element falls off from the cap-shaped support can be avoided.
  • overcurrent of the battery can be surely prevented by the external PTC element attached to the terminal protrusion in the battery.
  • the perspective view which shows the lithium battery of one Embodiment The disassembled perspective view which shows the structure of the PTC element unit of one Embodiment. Sectional drawing which shows the structure of the PTC element unit of one Embodiment. The perspective view which shows the lithium battery of one Embodiment.
  • FIG. 1 is a perspective view showing a lithium battery 10 according to the present embodiment.
  • 2 is an exploded perspective view showing the PTC element unit 20 attached to the lithium battery 10
  • FIG. 3 is a cross-sectional view showing the PTC element unit 20.
  • the lithium battery 10 is a cylindrical battery, and has a terminal protrusion 12 at the center of the terminal 11 provided on one end face (the upper end face in FIG. 1).
  • an external PTC element unit 20 is attached to the terminal protrusion 12 of the terminal 11.
  • the external PTC element unit 20 of the present embodiment includes a cap-shaped support body 21, a PTC element 22, and an external connection terminal plate 23.
  • the cap-shaped support 21 is a member for supporting the PTC element 22 and has a first main surface 24 and a second main surface 25 and has the same size and shape as the terminal protrusion 12 in plan view.
  • the top plate 26 and a side wall portion 27 projecting vertically from the outer peripheral portion of the second main surface 25 of the top plate 26.
  • the cap-shaped support body 21 is formed in a cap shape using a conductive material such as a nickel-plated steel plate.
  • the terminal protrusion 12 of the terminal 11 has a circular shape
  • the top plate 26 of the cap-shaped support 21 is also formed in a circular shape.
  • a recess 28 for arranging the PTC element 22 is formed on the first main surface 24 of the top plate 26.
  • the recess 28 is formed so that the relationship of 0 ⁇ d ⁇ T / 2 is satisfied.
  • the side wall 27 of the cap-shaped support 21 is divided into a plurality of pieces with a notch 29 therebetween.
  • a plurality of projection welding projections 30 are formed on the inner surface of the side wall portion 27 divided into a plurality of pieces so as to face each other with the center of the cap-shaped support 21 interposed therebetween.
  • the projection welding projection 30 is a so-called dowel projection whose cross section is formed in an R shape.
  • the side wall portions 27 are formed so that CS ⁇ 2r.
  • an R-shaped lead-in portion 31 formed so as to spread outward is provided at the tip of the side wall portion 27.
  • the guiding part 31 is formed so that 2r ⁇ A.
  • the height of the side wall portion 27 is lower than the height of the terminal protruding portion 12 to be attached, and the side wall portion 27 of the cap-shaped support body 21 is formed of the terminal protruding portion 12.
  • the surrounding terminal flat portion 13 is not covered.
  • the height of the side wall portion 27 is about half of the height of the terminal protruding portion 12.
  • the PTC element 22 has a disk shape having an element front surface 33 and an element back surface 34, and a through hole 35 is formed at the center thereof.
  • the PTC element 22 has a structure in which a conductive polymer material having positive temperature characteristics is sandwiched between element electrodes (specifically, plate-like nickel electrodes), and the resistance value increases as the temperature rises. To do.
  • element electrodes specifically, plate-like nickel electrodes
  • the element back surface 34 side of the PTC element 22 configured as described above is bonded and fixed onto the first main surface 24 of the top plate 26. Specifically, the PTC element 22 is disposed in the recess 28 formed in the top plate 26, and the PTC element 22 is soldered to the position of the recess 28 of the top plate 26 by solder reflow.
  • the recess 28 is formed shallower than half the thickness (T / 2) of the PTC element 22, when the PTC element 22 is soldered to the recess 28, the element surface 33 side of the PTC element 22 is the recess 28. It is in a state protruding from.
  • the external connection terminal plate 23 is bonded onto the element surface 33 so as to cover the PTC element 22.
  • the external connection terminal plate 23 is formed in a disk shape using a conductive material such as a nickel-plated steel plate, and is soldered onto the element surface 33 of the PTC element 22 by solder reflow.
  • the PTC element unit 20 configured as described above is connected to the terminal protrusion 12 of the terminal 11 by resistance welding.
  • the side wall 27 of the cap-like support 21 is fitted into the terminal protrusion 12 of the terminal 11 in the lithium battery 10, and the second main surface 25 side of the top plate 26 is opposed to the upper end surface of the terminal protrusion 12.
  • one electrode of the pair of electrodes for performing resistance welding is brought into contact with the side wall portion 27 of the cap-shaped support 21, and the other electrode (abandoned electrode) is positioned at the notch portion 29 of the side wall portion 27. Is brought into contact with the side surface of the terminal protruding portion 12 exposed.
  • the side wall 27 of the cap-like support 21 is welded to the side surface of the terminal protruding portion 12 by applying pressure while simultaneously applying current to the projection 30 to heat the portion 30 and heating.
  • a metal lead plate 37 (conductive member) for external connection is connected to the surface of the external connection terminal plate 23 (see FIG. 4).
  • the lead plate 37 is laminated and disposed with a part of the lead plate 37 protruding from the external connection terminal plate 23, and is fixed by welding to the center portion of the external connection terminal plate 23.
  • the PTC element unit 20 is provided at the upper end of the terminal protrusion 12 having a relatively small area. In this case, since the size of the PTC element unit 20 can be reduced, the component cost can be suppressed. Further, since the side wall portion 27 of the cap-like support 21 is fixed by welding to the side surface of the terminal protruding portion 12, even if a load is applied to the PTC element unit 20 in the lateral direction, the fixed position of the PTC element unit 20 is fixed. It is possible to avoid problems such as slippage. Furthermore, the cap-shaped support body 21 constituting the PTC element unit 20 can collect current three-dimensionally from the side surface in addition to the upper surface of the terminal protruding portion 12. For this reason, it is possible to suppress the influence of electrical resistance caused by mounting the PTC element unit 20 to the terminal 11. Thus, by mounting the PTC element unit 20 on the lithium battery 10, the overcurrent of the lithium battery 10 can be reliably prevented.
  • the PTC element 22 is formed in a disk shape and has the through hole 35 at the center thereof, the weight of the PTC element 22 can be reduced. Further, when the lead plate 37 is welded and fixed to the central portion of the external connection terminal plate 23, the PTC element 22 is disposed avoiding the central portion where heat is easily applied. Deterioration can be prevented.
  • the side wall 27 of the cap-shaped support 21 is divided into a plurality of pieces with a notch 29 therebetween.
  • the side wall 27 of the cap-shaped support 21 can be easily bent toward the terminal protrusion 12, and the side wall 27 can be reliably brought into contact with the side surface of the terminal protrusion 12.
  • the welding electrode can be disposed at the position of the notch 29, resistance welding can be reliably performed.
  • the side wall 27 of the cap-shaped support 21 is welded, heat is not easily transmitted to the PTC element 22 provided on the top plate 26 of the cap-shaped support 21, so that the performance deterioration of the PTC element 22 can be prevented. .
  • the top plate 26 of the cap-shaped support 21 when the top plate 26 of the cap-shaped support 21 is welded, it is necessary to install the PTC element 22 while avoiding the welded portion on the top plate 26, so that the installation space for the PTC element 22 is reduced.
  • the side wall 27 of the cap-shaped support 21 is welded, and the top plate 26 has the same dimensions as the terminal protrusion 12, so that a sufficient installation space for the PTC element 22 is ensured. be able to.
  • a plurality of projection welding projections 30 are formed on the inner surface of the side wall portion 27 so as to face each other with the center of the cap-shaped support 21 interposed therebetween.
  • the side wall portion 27 can be reliably welded to the side surface of the terminal protruding portion 12.
  • the PTC element 22 is securely placed at the position of the concave portion 28.
  • the PTC element 22 and the cap-shaped support 21 can be easily connected by soldering. Furthermore, according to this configuration, even if a lateral load is applied to the PTC element unit 20, it is possible to avoid the problem that the PTC element 22 falls off the cap-shaped support 21.
  • an R-shaped lead-in portion 31 is formed at the tip of the side wall portion 27 of the cap-shaped support 21 so as to spread outward. If it does in this way, the cap-shaped support body 21 of the PTC element unit 20 can be easily fitted in the terminal protrusion 12.
  • the PTC element unit 20 is mounted on the terminal protruding portion 12 of the terminal 11 and can be connected to an external device via the PTC element unit 20.
  • a steel plate that omits the surface plating treatment can be used as the steel plate that is a material for forming the terminal protruding portion 12, and the material cost of the lithium battery 10 can be suppressed.
  • the cap-shaped support 21 and the PTC element 22 are connected by soldering, and the PTC element 22 and the external connection terminal plate 23 are connected by soldering.
  • soldering instead of soldering, a conductive adhesive or the like may be used for connection.
  • the lead plate 37 is welded to the external connection terminal plate 23, but the terminal of the external device is connected to the external connection terminal plate 23 in a state where the lead plate 37 is not connected. You may connect directly to.
  • the PTC element unit 20 since heat due to welding is not applied to the central portion of the PTC element 22, the PTC element unit 20 may be configured using a disk-like PTC element 22 in which the through hole 35 is not formed.
  • the top plate 26, the PTC element 22, and the external connection terminal plate 23 of the cap-shaped support 21 are formed in a disk shape, but these shapes are the terminal protruding portions 12 of the terminals 11. It can change suitably according to the shape.
  • the notch 29 is provided in the side wall 27 of the cap-shaped support 21.
  • the notch 29 may be omitted and the side wall 27 connected in an annular shape may be used.
  • the side surface of the PTC element 22 is exposed to the outside, but the side surface of the PTC element 22 may be covered with a protective film made of a sealing resin or the like. .
  • the external PTC element unit 20 is attached to the cylindrical lithium battery 10, but the present invention is not limited to this.
  • the PTC element unit 20 may be attached to another battery such as a nickel-cadmium battery or a nickel-hydrogen battery.
  • the top plate 26 of the cap-shaped support 21 is formed with the same dimensions as the button battery, and the PTC element unit 20 is formed so that the side wall 27 of the cap-shaped support 21 is connected to the side surface of the button battery. To do.
  • An external PTC element unit that can be attached to a button battery, having a first main surface and a second main surface, and having a size and shape equivalent to the button battery in plan view, It is a plate having a cap-like support formed by using a conductive material, a device back surface and a device surface, and a side wall portion projecting vertically from the outer peripheral portion of the second main surface of the top plate.
  • a PTC element having the element back surface bonded and fixed on the first main surface of the top plate, and an external connection terminal plate bonded and fixed on the element surface to cover the PTC element,
  • the external PTC element unit wherein the side wall portion can be connected to a side surface of the button battery in a state where the second main surface side of the plate is disposed opposite to an end surface on one side of the button battery.
  • SYMBOLS 10 Lithium battery as a battery 11 ... Terminal 12 ... Terminal protrusion part 20 ... PTC element unit 21 ... Cap-shaped support body 22 ... PTC element 23 ... External connection terminal board 24 ... 1st main surface 25 ... 2nd main surface 26 DESCRIPTION OF SYMBOLS ... Top plate 27 ... Side wall part 28 ... Concave part 29 ... Notch part 30 ... Projection for projection projection 33 ... Element surface 34 ... Element back surface 35 ... Through-hole 37 ... Lead plate as a conductive member

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Thermistors And Varistors (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

L'invention vise à proposer une unité à élément à coefficient de température positif (CTP) attachée de l'extérieur, qui peut être attachée de manière sûre à des parties de borne en saillie appartenant à des bornes d'une batterie. A cet effet, est proposée une unité à élément CTP attachée de l'extérieur (20) qui comporte un corps support en forme de capuchon (21), un élément CTP (22) et une plaque de borne (23) pour connexions externes. Le corps support en forme de capuchon (21) est formé à partir d'un panneau supérieur (26) et des parties de paroi latérales (27) et est formé à l'aide d'un matériau conducteur. Le côté surface arrière d'élément (34) de l'élément CTP (22) est relié et fixé sur une première surface principale (24) du panneau supérieur (26). La plaque de borne (23) pour connexions externes est reliée et fixée sur la surface d'élément (33) de l'élément CTP (22) de façon à recouvrir l'élément CTP (22). Dans un état où l'unité à élément CTP attachée de l'extérieur (20) est disposée de telle sorte que le côté seconde surface principale (25) du panneau supérieur (26) du corps support en forme de capuchon (21) est tourné vers la surface d'extrémité supérieure d'une partie de borne en saillie (12), les parties de paroi latérales (27) sont amenées à être en contact avec les surfaces latérales de la partie de borne en saillie (12).
PCT/JP2011/079124 2010-12-20 2011-12-09 Unité à élément ctp attachée de l'extérieur, et batterie correspondante Ceased WO2012086526A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-283834 2010-12-20
JP2010283834A JP5683252B2 (ja) 2010-12-20 2010-12-20 外付けｐｔｃ素子ユニット及び電池

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WO2012086526A1 true WO2012086526A1 (fr) 2012-06-28

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3043400A1 (fr) * 2015-01-08 2016-07-13 Samsung SDI Co., Ltd. Batterie secondaire cylindrique lithium ion
WO2016171257A1 (fr) * 2015-04-24 2016-10-27 Ｌｉｔｔｅｌｆｕｓｅジャパン合同会社 Élément de protection
CN110235278A (zh) * 2017-07-18 2019-09-13 麦克赛尔控股株式会社 带有外部端子的电池

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012121468A1 (fr) * 2011-03-10 2012-09-13 신흥에스이씨주식회사 Batterie secondaire munie d'un ensemble chapeau avec lequel les composants sont liés
JP5797091B2 (ja) * 2011-11-08 2015-10-21 Ｆｄｋ鳥取株式会社 外付けｐｔｃ素子ユニット及び電池
KR20180088785A (ko) * 2015-12-01 2018-08-07 리텔퓨즈 재팬 지.케이. Ptc소자

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0638157U (ja) * 1992-10-29 1994-05-20 三洋電機株式会社 組電池
JPH0831402A (ja) * 1994-07-13 1996-02-02 A T Battery:Kk 封止電極端子構造
WO1997006538A1 (fr) * 1995-08-07 1997-02-20 K.K. Raychem Dispositif c.t.p. et bloc d'alimentation l'utilisant
JPH09213505A (ja) * 1996-02-07 1997-08-15 Sanyo Electric Co Ltd Ｐｔｃ装置及びｐｔｃ装置を備えた組電池
JP2011138647A (ja) * 2009-12-28 2011-07-14 Hitachi Ltd 二次電池の保護回路

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0638157U (ja) * 1992-10-29 1994-05-20 三洋電機株式会社 組電池
JPH0831402A (ja) * 1994-07-13 1996-02-02 A T Battery:Kk 封止電極端子構造
WO1997006538A1 (fr) * 1995-08-07 1997-02-20 K.K. Raychem Dispositif c.t.p. et bloc d'alimentation l'utilisant
JPH09213505A (ja) * 1996-02-07 1997-08-15 Sanyo Electric Co Ltd Ｐｔｃ装置及びｐｔｃ装置を備えた組電池
JP2011138647A (ja) * 2009-12-28 2011-07-14 Hitachi Ltd 二次電池の保護回路

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3043400A1 (fr) * 2015-01-08 2016-07-13 Samsung SDI Co., Ltd. Batterie secondaire cylindrique lithium ion
US9979057B2 (en) 2015-01-08 2018-05-22 Samsung Sdi Co., Ltd. Cylindrical lithium ion secondary battery
WO2016171257A1 (fr) * 2015-04-24 2016-10-27 Ｌｉｔｔｅｌｆｕｓｅジャパン合同会社 Élément de protection
EP3288042A4 (fr) * 2015-04-24 2018-12-05 Littelfuse Japan G.K. Élément de protection
CN110235278A (zh) * 2017-07-18 2019-09-13 麦克赛尔控股株式会社 带有外部端子的电池
EP3657572A4 (fr) * 2017-07-18 2020-07-22 Maxell Holdings, Ltd. Batterie à bornes externes
US11063311B2 (en) 2017-07-18 2021-07-13 Maxell Holdings, Ltd. Battery with external terminals
CN110235278B (zh) * 2017-07-18 2022-02-08 麦克赛尔株式会社 带有外部端子的电池

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