CN201219113Y - Square lithium battery - Google Patents
Square lithium battery Download PDFInfo
- Publication number
- CN201219113Y CN201219113Y CNU2008200401670U CN200820040167U CN201219113Y CN 201219113 Y CN201219113 Y CN 201219113Y CN U2008200401670 U CNU2008200401670 U CN U2008200401670U CN 200820040167 U CN200820040167 U CN 200820040167U CN 201219113 Y CN201219113 Y CN 201219113Y
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- China
- Prior art keywords
- clamping plate
- electric core
- lithium battery
- battery assembly
- core group
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- 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.)
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- 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
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Abstract
The utility discloses a square lithium battery assembly comprising dry cell pack stacked by multiple dry cells, electrode extracted circuit board connecting with the dry cell pack characterized in that outer ring of dry cell pack is provided with binding structure comprising two pinch plates and at least a group of binding members; the pinch plates are parallel disposed at two sides of the dry cell and connected with each other by the binding members to constitute close fit of inner side wall of pinch plate and outer wall of dry cell. Locking force of the binging structure to the dry cell avoids reduced firmness of battery pack arising from expansion between pole piece, effectively promotes circulation ability of charging or discharging of battery pack, prolongs use life of lithium battery.
Description
Technical field
The utility model relates to a kind of battery component, is specifically related to a kind of quadrate lithium battery assembly, suitable driving power as electric bicycle etc.
Background technology
Lithium battery is owing to have advantages such as in light weight, that volume is little, capacitance is big, charging rate is fast, is widely used on all kinds of numbers, the communication product such as notebook computer.With lithium battery applications on big capacity such as electric bicycle, electric automobile, the high-tension vehicles time, need higher driving voltage, thereby can be with in the battery case of packing into after a plurality of electric cores (positive and negative plate, positive and negative lug, barrier film lamination constitute) series connection, by extraction electrode end on the battery case, be used to discharge and recharge, this series electrical core has just constituted battery component.
Because battery component can generate heat after filling generating, and be attended by the phenomenon of expansion, spacing between each pole piece changes, make the steadiness of battery component descend, and battery case can't be accomplished fully and the battery component tight fit, the charge-discharge cycle of lithium battery is descended, and utilization rate descends repeatedly, directly has influence on the normal useful life of battery.
In the prior art, for improving steadiness to battery component, regular meeting uses insulating tape that assembly is tied up, promptly the multiple tracks adhesive tape is twined in the periphery around battery component, must there be some problems in this easy reinforcing mode: 1. all be made of plastics owing to common adhesive tape, and fix by bonding mode, therefore its firmness is relatively poor, the feasible battery component stability that obtains of tying up is limited, and vehicle has in the process of moving and violent jolt and vibrate, therefore situations such as the slack and undisciplined or fracture of adhesive tape very easily occur, influence the normal use of lithium battery, even the initiation potential safety hazard; 2. adhesive tape has certain extensibility, and after the battery component heating was expanded, adhesive tape was stretched thereupon, deform, thereby relatively poor to the fastening effect of battery component.Thus, the existence of the structure of present battery component awaits further improved necessity, to prolong the useful life of lithium battery.
Summary of the invention
The utility model purpose provides a kind of quadrate lithium battery assembly, uses the battery component of this structure, can increase the stability of battery component, improves cycle performance, prolongs the useful life of battery.
For achieving the above object, the technical solution adopted in the utility model is: a kind of quadrate lithium battery assembly, comprise that a plurality of electric core stacks constitute electric core group, and an electrode that is connected with described electric core group is drawn circuit board, described electric core group outer ring is provided with binder structure, described binder structure comprises two clamping plates and at least one group of binding piece, described clamping plate and described electric core are arranged in parallel, and be divided into the both sides of electric core group, and connect two clamping plate through described binding piece, constitute the lateral wall tight fit of clamping plate madial wall and the described electric core of respective side.
In the technique scheme, described electric core is usually by pole piece, lug and barrier film lamination constitute, a plurality of electric core series connection constitute electric core group, it discharges and recharges exit and draws with electrode that circuit board is connected after pole is drawn battery case, described binder structure is located on outside the electric core group, by cooperating of both sides clamping plate and binding piece, make clamping plate play the effect that clamps to the inside to electric core group, the outermost electric core lateral wall of the madial wall of clamping plate and electric core group keeps tight fit, limiting electric core group outwards expands when discharging and recharging, guaranteeing the steadiness of electric core group, thereby improve the cycle performance of lithium battery, high rate performance, cryogenic property etc., the normal useful life of prolongation lithium battery.
In the technique scheme, each described binding piece is made of 2 strip metal bands, is distributed in the both sides of described clamping plate, and its end is fixing with the clamping plate side welding of corresponding end respectively.
Further technical scheme is, on the described clamping plate dual-side, ties up the place, position corresponding to described metal tape and is provided with the groove that holds metal tape respectively, and this depth of groove and described metal tape thickness are complementary so that metal tape tie up location, enhanced stability.
Another kind of technical scheme is, each is organized described binding piece and is made of 2 Metallic rod, is distributed in the outside that described clamping plate both sides extend to described electric core group, and its two ends are axially arranged with screw, described clamping plate proximal edges place is provided with the fixing hole that cooperates with screw, and both connect through bolt.
Another technical scheme is, comprise two groups of described binding pieces, each group binding piece is made of 2 Metallic rod, be distributed in the top and the bottom of described clamping plate in twos, each described metal rod ends is axially arranged with screw, described clamping plate top and bottom ends extends to the outside of described electric core group respectively, and close end is provided with the fixing hole that cooperates with screw, and both connect through bolt.
In the technique scheme, described clamping plate are provided with at least one sunk structure, the lateral wall tight fit of the medial surface of this sunk structure and described electric core; Another kind of technical scheme is that described clamping plate outer surface rises to the outer space and is provided with reinforcement.Utilize above-mentioned two kinds of clamp regions, can improve the rigidity of clamping plate, to guarantee the clamping force of clamping plate electric core group.
Because the technique scheme utilization, the advantage that the utility model compared with prior art has is:
1, the utility model utilizes the binder structure that clamping plate and binding piece constitute, keep tight fit with electric core group, lock electric core group, avoid electric core when discharging and recharging, to change because of the pole piece spacing takes place in expansion, improve the steadiness of electric core, and then can improve charge-discharge performance, high rate performance of entire cell assembly etc., prolong useful life repeatedly;
2, the depression or the reinforcement of projection are set on clamping plate,, strengthen the power of tying up, guarantee the steadiness of battery component work electric core group to improve the non-deformability of clamping plate.
Description of drawings
Fig. 1 is the structural representation (electrode is drawn circuit board and do not drawn) of the utility model embodiment one;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of Fig. 1 middle clamp plate;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the structural representation (electrode is drawn circuit board and do not drawn) of the utility model embodiment two;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is the left view of Fig. 5;
Fig. 8 is the structural representation (electrode is drawn circuit board and do not drawn) of the utility model embodiment three;
Fig. 9 is the vertical view of Fig. 8;
Figure 10 is the left view of Fig. 8.
Wherein: 1, clamping plate; 2, binding piece; 3, electric core; 4, bolt; 5, groove; 6, sunk structure; 7, reinforcement.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: shown in Fig. 1～4, a kind of quadrate lithium battery assembly, comprise that 3 stacks of 10 electric cores constitute electric core groups, are located on the binder structure in the electric core group outside and electrodes that are connected with described electric core group are drawn circuit board, described binder structure comprises two metal splints 1 and 2 groups of binding pieces 2, described clamping plate and described electric core 3 are arranged in parallel, and be divided into the both sides of electric core group, and, constitute the lateral wall tight fit of clamping plate 1 madial wall and the described electric core 3 of respective side through described binding piece 2 connections two clamping plate 1.
As shown in Figure 1, each is organized described binding piece 2 and is made of 2 strip metal steel bands, is distributed in the both sides of described clamping plate 1, and its end is fixing with the clamping plate 1 side welding of corresponding end respectively.On described clamping plate 1 dual-side, tie up the place, position corresponding to described metal tape and be provided with 2 grooves 5 that hold metal tape respectively, these groove 5 degree of depth and described metal tape thickness are complementary, as shown in Figure 3.Each described clamping plate 1 is provided with 4 sunk structures 6, and as shown in Figure 4, the lateral wall tight fit of the medial surface of this sunk structure 6 and described electric core 3 to improve the non-deformability of clamping plate, improves the steadiness of entire cell assembly by sunk structure 6.
Compare with present embodiment and common batteries assembly (battery component that adopts adhesive tape to tie up), measured cycle-index, discharge capacity and the decay percentage of battery component under identical condition, measurement result sees Table 1,
Table 1 battery pack cycle performance contrast table
As can be seen from Table 1, after adopting binder structure, the charge and discharge cycles number of times of battery component is more, promptly when discharge capacity, decay percentage when close, present embodiment can recycle about 550 times, and the common batteries assembly can only recycle about 305 times, and as seen, present embodiment can effectively improve the cycle performance of battery component.
Embodiment two: shown in Fig. 5～7, a kind of quadrate lithium battery assembly, comprise that 3 stacks of 10 electric cores constitute electric core groups, are located on the binder structure in the electric core group outside and electrodes that are connected with described electric core group are drawn circuit board, described binder structure comprises two metal splints 1 and 2 groups of binding pieces 2, described clamping plate and described electric core 3 are arranged in parallel, and be divided into the both sides of electric core group, and, constitute the lateral wall tight fit of clamping plate 1 madial wall and the described electric core 3 of respective side through described binding piece 2 connections two clamping plate 1.
In the present embodiment, each is organized described binding piece 2 and is made of 2 Metallic rod, be distributed in the left and right sides of described clamping plate 1, its two ends are axially arranged with screw, described clamping plate 1 both sides extend to the outside of described electric core group, the proximal edges place is provided with the fixing hole that cooperates with screw, and both are fixedly connected through bolt 4, shown in Fig. 5,6.Described clamping plate 1 outer surface is provided with consistent 2 reinforcements 7 arranging with clamping plate 1 bearing of trend to outer process, as shown in Figure 7, and to improve the non-deformability of clamping plate.
Embodiment three: shown in Fig. 8～10, a kind of quadrate lithium battery assembly, comprise that 3 stacks of 10 electric cores constitute electric core groups, are located on the binder structure in the electric core group outside and electrodes that are connected with described electric core group are drawn circuit board, described binder structure comprises two metal splints 1 and 2 groups of binding pieces 2, described clamping plate and described electric core 3 are arranged in parallel, and be divided into the both sides of electric core group, and, constitute the lateral wall tight fit of clamping plate 1 madial wall and the described electric core 3 of respective side through described binding piece 2 connections two clamping plate 1.
In this enforcement, each group binding piece 2 is made of 2 metal steel poles, one group of top that is positioned at described clamping plate, another group is positioned at the bottom of described clamping plate 1, and as shown in figure 10, each described metallic steel boom end is axially arranged with screw, described clamping plate 1 top and bottom ends extends to the outside of described electric core group respectively, close end is provided with the fixing hole that cooperates with screw, and both are fixedly connected through bolt 4, shown in Fig. 8,9.
Claims (7)
1. quadrate lithium battery assembly, comprise that a plurality of electric cores (3) stack constitutes electric core group, and an electrode that is connected with described electric core group is drawn circuit board, it is characterized in that: described electric core group outer ring is provided with binder structure, described binder structure comprises two clamping plates (1) and at least one group of binding piece (2), described clamping plate and described electric core (3) are arranged in parallel, and be divided into the both sides of electric core group, and, constitute the lateral wall tight fit of clamping plate (1) madial wall and the described electric core of respective side (3) through described binding piece (2) connection two clamping plate (1).
2. quadrate lithium battery assembly according to claim 1 is characterized in that: each is organized described binding piece (2) and is made of 2 strip metal bands, is distributed in the both sides of described clamping plate (1), and its end is fixing with clamping plate (1) the side welding of corresponding end respectively.
3. quadrate lithium battery assembly according to claim 2, it is characterized in that: on described clamping plate (1) dual-side, tie up the place, position corresponding to described metal tape and be provided with the groove (5) that holds metal tape respectively, this groove (5) degree of depth and described metal tape thickness are complementary.
4. quadrate lithium battery assembly according to claim 1, it is characterized in that: each is organized described binding piece (2) and is made of 2 Metallic rod, be distributed in the both sides of described clamping plate (1), its two ends are axially arranged with screw, described clamping plate (1) both sides extend to the outside of described electric core group, the proximal edges place is provided with the fixing hole that cooperates with screw, and both are fixedly connected through bolt (4).
5. quadrate lithium battery assembly according to claim 1, it is characterized in that: comprise two groups of described binding pieces (2), each group binding piece (2) is made of 2 Metallic rod, be distributed in the top and the bottom of described clamping plate (1) in twos, each described metal rod ends is axially arranged with screw, described clamping plate (1) top and bottom ends extends to the outside of described electric core group respectively, and close end is provided with the fixing hole that cooperates with screw, and both are fixedly connected through bolt (4).
6. quadrate lithium battery assembly according to claim 1 is characterized in that: described clamping plate (1) are provided with at least one sunk structure (6), the lateral wall tight fit of medial surface of this sunk structure (6) and described electric core (3).
7. quadrate lithium battery assembly according to claim 1 is characterized in that: described clamping plate (1) outer surface is provided with reinforcement (7) to outer process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200401670U CN201219113Y (en) | 2008-06-30 | 2008-06-30 | Square lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200401670U CN201219113Y (en) | 2008-06-30 | 2008-06-30 | Square lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201219113Y true CN201219113Y (en) | 2009-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200401670U Expired - Lifetime CN201219113Y (en) | 2008-06-30 | 2008-06-30 | Square lithium battery |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199205A (en) * | 2012-01-09 | 2013-07-10 | 苏州纳新新能源科技有限公司 | Multi-section lithium ion battery |
| CN103337668A (en) * | 2013-05-21 | 2013-10-02 | 东莞新能源科技有限公司 | Method for improving safety of lithium ion secondary battery |
| CN103682205A (en) * | 2013-12-25 | 2014-03-26 | 山东神工海特电子科技有限公司 | Novel lithium ion battery |
| CN104143653A (en) * | 2014-08-07 | 2014-11-12 | 上海航天电源技术有限责任公司 | Assembling and shaping fixture for vehicle-mounted battery pack system module and assembling and shaping method thereof |
| CN110364656A (en) * | 2019-07-19 | 2019-10-22 | 珠海银隆电器有限公司 | A kind of PACK box and its manufacturing method |
| CN110993869A (en) * | 2018-10-02 | 2020-04-10 | 大众汽车有限公司 | Contacting scheme for single cells |
| CN111095596A (en) * | 2017-07-25 | 2020-05-01 | 马勒国际有限公司 | Energy storage components |
-
2008
- 2008-06-30 CN CNU2008200401670U patent/CN201219113Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199205A (en) * | 2012-01-09 | 2013-07-10 | 苏州纳新新能源科技有限公司 | Multi-section lithium ion battery |
| CN103337668A (en) * | 2013-05-21 | 2013-10-02 | 东莞新能源科技有限公司 | Method for improving safety of lithium ion secondary battery |
| CN103682205A (en) * | 2013-12-25 | 2014-03-26 | 山东神工海特电子科技有限公司 | Novel lithium ion battery |
| CN104143653A (en) * | 2014-08-07 | 2014-11-12 | 上海航天电源技术有限责任公司 | Assembling and shaping fixture for vehicle-mounted battery pack system module and assembling and shaping method thereof |
| CN104143653B (en) * | 2014-08-07 | 2016-08-17 | 上海航天电源技术有限责任公司 | On-vehicle battery group system module assembling shaping tooling and assembling shaping methods |
| CN111095596A (en) * | 2017-07-25 | 2020-05-01 | 马勒国际有限公司 | Energy storage components |
| CN110993869A (en) * | 2018-10-02 | 2020-04-10 | 大众汽车有限公司 | Contacting scheme for single cells |
| CN110993869B (en) * | 2018-10-02 | 2023-04-07 | 大众汽车有限公司 | Contacting scheme for single cells |
| CN110364656A (en) * | 2019-07-19 | 2019-10-22 | 珠海银隆电器有限公司 | A kind of PACK box and its manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215153 Suzhou high tech Zone, Jiangsu city science and technology, Jinsha River Road, No. 181 Patentee after: Phylion battery Limited by Share Ltd Address before: 215009 Xiangyang Road, Suzhou New District, Jiangsu, Suzhou, China, No. 81 Patentee before: Suzhou Phylion Battery Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090408 |