CN101834307A - Prismatic cell - Google Patents
Prismatic cell Download PDFInfo
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- CN101834307A CN101834307A CN201010133504A CN201010133504A CN101834307A CN 101834307 A CN101834307 A CN 101834307A CN 201010133504 A CN201010133504 A CN 201010133504A CN 201010133504 A CN201010133504 A CN 201010133504A CN 101834307 A CN101834307 A CN 101834307A
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- positive
- confluxes
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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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- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention provides a prismatic cell which comprises a rectangular shell, a sealing cover, a battery cell built in the shell, an anode column, an anode current converging piece, a cathode column and a cathode current converging piece, wherein the battery cell is formed by mutually and alternatively laminating an anode plate, a diaphragm and a cathode plate, punching is respectively carried out on the white edge net position on one side edges of the anode plate and the cathode plate, the current converging piece is punched at the position corresponding to the current converging piece, and a fastening piece is used for connecting the corresponding holes so as to fix the polar plates on the current converging piece; and the polar columns are integrated with the current converging piece into a whole module. The prismatic cell of the invention can effectively broaden a current transmission channel and improve the high-current discharging property and the cell vibration resistance, thereby improving the stability and the safety of the operation of the cell.
Description
Technical field
The present invention relates to a kind of storage battery, particularly a kind of prismatic cell.
Background technology
In the present prismatic cell structure, positive plate, the same direction of negative plate or a rightabout end edge leave white edge, and white edge welds mutually with a side of lug or collector; Weld mutually with the different electrode columns that pass housing the another side of flow collection sheet.Flow collection sheet and pole, flow collection sheet and pole plate all adopt welding, and narrow and small because of the inside battery space, the parts bonding area is limited, and the current delivery passage is narrow, and power consumption is big, and the battery temperature rise is obvious, influences the stability of cell, and the power characteristic of electrokinetic cell is not played well.The high-power battery charging and discharging currents is big, thermal effect easily takes place pad reduces weld strength, vibration resistance intensity is relatively low seriously can be produced to connect and lost efficacy and cause battery failure, and the narrow local temperature of current delivery passage is too high simultaneously easily causes the battery diaphragm fusion and cause battery short circuit, on fire.Reach hundreds of amperes during the electrokinetic cell high current charge-discharge, generally be used for hybrid vehicle, electric motor car, high-power boost motor etc., electrokinetic cell will stand the test of long-term vibration and high current charge-discharge, and welding quality directly affects the stable power that discharges and recharges, and the welding procedure complexity, easily cause the pole sealing-off, localized hyperthermia causes potential safety hazards such as short-circuit fire in the battery.
Summary of the invention
The present invention aims to provide and a kind ofly can effectively widen the current delivery passage, thereby improves heavy-current discharge performance and the battery anti-vibration performance improves the stability of battery operation and the prismatic cell of fail safe.
The present invention adopts following scheme to realize:
A kind of prismatic cell, comprise rectangular housing, seal cover, be built in electric core, positive terminal, positive pole in housing part, negative terminal and the negative pole part that confluxes that confluxes, the electricity core replaces lamination mutually by positive plate, barrier film, negative plate and forms, same position punching the white edge net bit position of all positive plate one sides (annotate: white edge net bit position promptly is the part of not filling active material), the positive pole part that confluxes is correspondingly located punching, with fixture corresponding aperture is joined, make positive plate be fixed in the positive pole part that confluxes; The same position punching of the white edge net bit position of negative plate one side opposite with the punching place side of positive plate, the negative pole part that confluxes is correspondingly located punching, with fixture corresponding aperture is connected, and makes negative plate be fixed in the negative pole part that confluxes.Above-mentioned fixing piece can adopt rivet, promptly adopts the part that confluxes of the riveted joint mode fixed polar plate and the corresponding utmost point.
Be further to improve stable high power performance and the security performance of battery, positive terminal and the positive pole part that confluxes is one and is
Shape or
The integral module of shape, minor face is depicted as pole, and long limit is depicted as the part that confluxes; Negative terminal and negative pole conflux, and part is then corresponding to be one and to be
Shape or
The integral module of shape, minor face is depicted as pole, and long limit is depicted as the part that confluxes; Positive and negative pole all places on the seal cover and with its sealing and joins.
Another kind of design is that positive terminal and the positive pole part that confluxes is one and is
Shape or
The integral module of shape, minor face is depicted as pole, and long limit is depicted as the part that confluxes; Negative terminal and negative pole conflux, and part is then corresponding to be one and to be
Shape or
The integral module of shape, minor face is depicted as pole, and long limit is depicted as the part that confluxes; Positive and negative pole all is exposed to outside the housing and with housing seal and joins.
Compared with prior art, advantage applies of the present invention in:
1. among the present invention, directly utilize the blank net bit position punching of pole plate and realize pole plate and the riveted and fixed of the part that confluxes, the lug parts of existing accumulator structure have been cancelled on the one hand, increased catchment area, make battery structure simple, reduce the polarization of electrokinetic cell in charge and discharge process, reduce thermal effect and reduce power consumption; Then electrode and confluxing no longer includes pad and fixing more steady between the part on the other hand, and battery security can promote.
2. the present invention is owing to adopted the integral module design of pole with the part that confluxes, the Welding Design of lug or collector and pole in the replacement prior art, effectively widen the current delivery passage, improve the electrokinetic cell charge-discharge performance, also owing to there not being pad to improve the anti-vibration performance of battery, the battery safety, the not good problem of serviceability that come off and cause because of pad have been avoided simultaneously.
Description of drawings
The vertical anatomical structure schematic diagram of the prismatic cell of Fig. 1: embodiment 1
The vertical anatomical structure schematic diagram of the prismatic cell of Fig. 2: embodiment 2
Fig. 3: two kinds of different battery structure heavy-current discharge curve comparison diagrams
Embodiment
The present invention's prismatic cell, its vertical anatomical structure comprise rectangular housing 1, seal cover 2, are built in electric core 3, positive terminal 4 and positive pole in housing part 5, negative terminal 9 and the negative pole part that confluxes that confluxes as shown in Figure 1.Electricity core 3 replaces lamination mutually by positive plate, barrier film, negative plate and forms, same position punching at the white edge net bit position 6 of all positive plate one sides, the positive pole part that confluxes is correspondingly located punching, with rivet 7 and pad 8 corresponding aperture is joined, and makes positive plate be fixed in the positive pole part that confluxes; Negative pole structure on one side is with anodal identical, promptly in the same position punching of the white edge net bit position of negative plate one side, this negative plate white edge net position side is just in time opposite with the white edge net position side of positive plate, the negative pole part that confluxes is correspondingly located punching, with rivet ﹠ washer corresponding aperture is connected, make negative plate be fixed in the negative pole part that confluxes.Positive terminal 4 and the positive pole part 5 that confluxes is one and is
Integral module, minor face is depicted as positive terminal, long limit is depicted as the part that confluxes; Negative terminal and negative pole conflux, and part is then corresponding to be one and to be
The integral module of shape is mirror-symmetrical with the integral module of positive pole, and minor face is depicted as pole, and long limit is depicted as the part that confluxes; Positive terminal 4, negative terminal 9 all place on the seal cover 2 and with its sealing and join.
Using wider 40Ah square metal hydride ickel accumulator with electrokinetic cell below is that example further specifies the above embodiment of the present invention.The square metal hydride ickel accumulator that adopts embodiment 1 mode to make, the cell capacity is A for the 40Ah scheme; With the square metal hydride ickel accumulator that traditional structure is made, be B as the object of reference scheme, after with two kinds of cell activation, it is carried out high-rate discharge ability relatively.Fig. 3 is that two kinds of batteries are with 280A electric current constant current discharge performance comparison result.The discharge platform of the battery A structure battery made of two kinds of different structures obviously is better than traditional structure B as can be seen, and A structure battery effectively improves current delivery ability raising cell discharge performance owing to adopt conflux part and the design that pole is integrated.
The present invention's prismatic cell, its vertical anatomical structure schematic diagram as shown in Figure 2, positive terminal 4 and the positive pole part 5 that confluxes is one and is
The integral module of shape, minor face is depicted as pole, and long limit is depicted as the part that confluxes; Negative terminal and negative pole conflux, and part is then corresponding to be one and to be
The integral module of shape, minor face is depicted as pole, and long limit is depicted as the part that confluxes; Positive terminal 4, negative terminal 9 all are exposed to outside the housing 1 and with housing 1 sealing and join.All the other structures are identical with embodiment 1.
Adopt present embodiment mode and existing mode to make square metal hydride ickel accumulator respectively, under the same test condition, test its anti-vibration performance respectively, experimental result shows, the prismatic cell anti-vibration performance of employing present embodiment structure obviously is better than the prismatic cell of existing structure, show that thus in actual applications, the prismatic cell fail safe and the stability of the present invention's structure are higher.
Claims (3)
1. prismatic cell, comprise rectangular housing, seal cover, be built in electric core, positive terminal, positive pole in housing part, negative terminal and the negative pole part that confluxes that confluxes, the electricity core replaces lamination mutually by positive plate, barrier film, negative plate and forms, it is characterized in that: in the same position punching of the white edge net bit position of positive plate one side, the positive pole part that confluxes is correspondingly located punching, with fixture corresponding aperture is joined, make positive plate be fixed in the positive pole part that confluxes; The same position punching of the white edge net bit position of negative plate one side opposite with the punching place side of positive plate, the negative pole part that confluxes is correspondingly located punching, with fixture corresponding aperture is connected, and makes negative plate be fixed in the negative pole part that confluxes.
2. prismatic cell as claimed in claim 1 is characterized in that: positive terminal and the positive pole part that confluxes is one and is
Shape or
The integral module of shape, negative terminal and negative pole conflux part then with it symmetry be one and be
Shape or
The integral module of shape; Positive and negative pole all places on the seal cover and with its sealing and joins.
3. as prismatic cell as claimed in claim 1, it is characterized in that: positive terminal and the positive pole part that confluxes is one and is
Shape or
The integral module of shape, negative terminal and negative pole conflux part then with it symmetry be one and be
Shape or
The integral module of shape; Positive and negative pole all is exposed to outside the housing and with housing seal and joins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010133504A CN101834307A (en) | 2010-03-26 | 2010-03-26 | Prismatic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010133504A CN101834307A (en) | 2010-03-26 | 2010-03-26 | Prismatic cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101834307A true CN101834307A (en) | 2010-09-15 |
Family
ID=42718290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010133504A Pending CN101834307A (en) | 2010-03-26 | 2010-03-26 | Prismatic cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101834307A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024012127A1 (en) * | 2022-07-14 | 2024-01-18 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, and electric device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1462084A (en) * | 2002-05-31 | 2003-12-17 | 春兰(集团)公司 | Alkaline battery |
| CN2814683Y (en) * | 2005-06-30 | 2006-09-06 | 深圳市比克电池有限公司 | Lithium iron battery electrode sheet riveting punch needle and electrode sheet, battery processed utilizing the same punching needle |
| CN201181725Y (en) * | 2008-03-18 | 2009-01-14 | 风帆股份有限公司 | Accumulator pole group structure for evading reversal of pole group assembled groove |
-
2010
- 2010-03-26 CN CN201010133504A patent/CN101834307A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1462084A (en) * | 2002-05-31 | 2003-12-17 | 春兰(集团)公司 | Alkaline battery |
| CN2814683Y (en) * | 2005-06-30 | 2006-09-06 | 深圳市比克电池有限公司 | Lithium iron battery electrode sheet riveting punch needle and electrode sheet, battery processed utilizing the same punching needle |
| CN201181725Y (en) * | 2008-03-18 | 2009-01-14 | 风帆股份有限公司 | Accumulator pole group structure for evading reversal of pole group assembled groove |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024012127A1 (en) * | 2022-07-14 | 2024-01-18 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, and electric device |
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Application publication date: 20100915 |