CN201845835U - Coiled lithium ion power battery cell - Google Patents
Coiled lithium ion power battery cell Download PDFInfo
- Publication number
- CN201845835U CN201845835U CN2010206031833U CN201020603183U CN201845835U CN 201845835 U CN201845835 U CN 201845835U CN 2010206031833 U CN2010206031833 U CN 2010206031833U CN 201020603183 U CN201020603183 U CN 201020603183U CN 201845835 U CN201845835 U CN 201845835U
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- Prior art keywords
- negative
- plate
- positive
- lithium ion
- power battery
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- Expired - Fee Related
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model relates to a lithium battery, in particular to a lithium battery cell for supplying power to an automobile. A coiled lithium ion power battery cell comprises a housing, a positive terminal, a negative terminal, a positive plate, a negative plate, a diaphragm, a positive lug and a negative lug, wherein the positive lug and the negative lug are respectively formed in the length direction of the positive plate and the length direction of the negative plate and on two sides of the lithium ion power battery cell; the lithium ion power battery cell further comprises a positive current collecting plate and a negative current collecting plate which are arranged oppositely, and the positive current collecting plate comprises a body and two pins; the negative current collecting plate is identical with the positive current collecting plate in shape; the two pins of the positive current collecting plate are respectively welded with laminated layers on two sides of the coiled positive lug, the two pins of the negative current collecting plate are welded with the laminated layers on two sides of the positive lug; and one end of the body of the positive current collecting plate, which is not connected with the pins of the positive current collecting plate, is welded with the positive terminal, one end of the body of the negative current collecting plate, which is not connected with the pins of the negative current collecting plate, is welded with the negative terminal, and the positive terminal and the negative terminal are arranged at two ends of the top end surface of the housing of the lithium ion power battery cell.
Description
Technical field
The utility model relates to a kind of lithium battery, in particular for the lithium battery electric core of automobile power.
Background technology
At present, the lithium battery technology development that is used for automobile power is rapid, and domestic and international many companies research and produce lithium battery for automobile power, and the structure of this kind lithium battery mainly contains stacked and takeup type.Coiled lithium battery cell mainly comprises shell, anode and cathode terminals, positive plate, negative plate, barrier film, anode ear and negative electrode lug at present.Lug mainly contains two kinds of forms, and a kind of is to weld the allosome lug on positive and negative plate respectively, and lug is sheet metal such as alumel normally; Another kind is directly to extend that obtain and the lug pole piece one by the matrix aluminium foil of positive/negative plate or Copper Foil collector.The allosome lug is not easy to reel and increased to a great extent internal resistance, and the lug that forms one with pole piece becomes development trend.
Application number is that 201010147449.2 Chinese patent application discloses a kind of lithium battery electric core, and reeling after stacking together by positive pole band, inner septum band, negative pole band and outer mode separation strapping according to from inside to outside order forms again; Vertical one side of anodal band and negative pole band is useful on second chimb that forms anodal pin and first chimb that is used to form the negative pole pin respectively; It is characterized in that described positive pole with on second chimb and first chimb on the negative pole band all be in anodal band and negative pole band vertically with on one side, and anodal with on second chimb and first chimb on the negative pole band along they vertically be staggered layout so that anodal band, negative pole band and inside and outside mode separation strapping are reeled together the back by positive pole with on the corresponding overlapping formed anodal pin in back of second chimb and first chimb on the negative pole band corresponding overlapping after formed negative pole pin all be on the same end of electric core.
The disclosed technical scheme of above-mentioned application owing to need form chimb on positive pole band and negative pole band, and also needs alignment when reeling, and processing technology is loaded down with trivial details and the production line control precision is required high.Concentrating of lug also is unfavorable for the battery heat radiation in addition.
The utility model content
Technical problem to be solved in the utility model is: provide that a kind of processing technology is simple, the coiled lithium ion electrokinetic cell of perfect heat-dissipating.
The purpose of this utility model is achieved in that
A kind of coiled lithium ion electrical core of power battery, comprise shell, anode and cathode terminals, positive plate, negative plate, barrier film and be respectively formed at positive plate and negative plate on anode ear and negative electrode lug, described anode ear and negative electrode lug are respectively formed on the length direction of described positive plate and negative plate, and anode ear and negative electrode lug are positioned at described electric core both sides;
Described electric core also comprises anode collection plate and the negative pole currect collecting plate that is oppositely arranged on both sides, described electric core top, and described anode collection plate comprises the body that is made of two rectangular sheet metals and fixedlys connected two pins of both sides, a strip metal sheet end therein; Described negative pole currect collecting plate is identical with described anode collection plate shape;
Two pins of described anode collection plate respectively with the both sides lamination welding of the anode ear of reeling, two pins of negative pole currect collecting plate respectively with the both sides lamination welding of the negative electrode lug of reeling;
One end of the disconnected pin of described anode collection plate body and the welding of described positive terminal, an end of the disconnected pin of negative pole currect collecting plate body and the welding of described negative terminal, described positive terminal and negative terminal are arranged on the two ends of described electric core housing top end face.
Described shell top end face is the strip lamina tecti, and described positive terminal and negative terminal are separately positioned on described lamina tecti two ends.
Two rectangular sheet metals of described anode collection plate body are one, are to be bent into the right angle by a rectangle sheet metal to constitute; Pin is the rectangle sheet metal, and two pins is parallel to each other and all perpendicular to two rectangular sheet metals of anode collection plate body; Described negative pole currect collecting plate is identical with described anode collection plate shape.
Described negative pole currect collecting plate and described negative terminal material are aluminium.
Described anode collection plate and described positive terminal material are copper.
Described coiled lithium ion electrical core of power battery also comprises explosion-proof valve, and described explosion-proof valve is arranged on described lamina tecti middle part.
The utlity model has following technique effect:
The utility model forms full lug on aluminium foil or Copper Foil collector pole piece length direction, directly as lug, avoided the one-tenth section lug moulding process of existing complexity behind the coiling, and need not the accurate control of reeling.Positive and negative lug respectively goes out a side, excellent radiation performance.Lug lamination and collector plate welding even there is individual layers to get loose, still can guarantee circuit turn-on.Because pole piece is rolled into tabular lamination, so lug lamination two parts relative separation, relative with the lug lamination respectively two folded welding respectively that separate of two pins of each collector plate, compare welding simultaneously, not only be difficult for unclamping, thermal diffusivity is more excellent, and makes the easier inflow of electrolyte.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the utility model coiled lithium ion electrical core of power battery structural representation;
Fig. 2 is a positive plate structural representation in the utility model;
Fig. 3 is a negative plate structural representation in the utility model;
Fig. 4 is an anode collection plate structure front schematic view in the utility model;
Fig. 5 is an anode collection plate structure side schematic view in the utility model;
Fig. 6 is anode collection plate and an anode ear connection diagram in the utility model;
Among the figure: 1 shell, 11 lamina tectis, 2 positive terminals, 3 negative terminals, 4 positive plates, 41 anode ears, 5 negative plates, 51 negative electrode lugs, 6 explosion-proof valves, 7 anode collection plates, 71 bodies, 72 pins, 8 negative pole currect collecting plates.
Embodiment
As Fig. 1, a kind of coiled lithium ion electrical core of power battery, comprise shell 1, positive terminal 2, negative terminal 3, positive plate 4, negative plate 5, barrier film and be respectively formed at positive plate 4 and negative plate 5 on anode ear 41 and negative electrode lug 51.
As Fig. 2, Fig. 3, anode ear 41 and negative electrode lug 51 are respectively formed on the length direction of described positive plate 4 and negative plate 5, and anode ear 41 and negative electrode lug 51 are positioned at electric core both sides.
The electricity core also comprises anode collection plate 7 and the negative pole currect collecting plate 8 that is oppositely arranged on both sides, electric core top.
As Fig. 4, Fig. 5, anode collection plate 7 comprises the body 71 that is made of two rectangular sheet metals and fixedlys connected two pins 72 of both sides, a strip metal sheet end therein.Two rectangular sheet metals of anode collection plate body 71 are one, are to be bent into the right angle by a rectangle sheet metal to constitute.Pin 72 is the rectangle sheet metal, and two pins 72 is parallel to each other and all perpendicular to two rectangular sheet metals of anode collection plate body 71.Negative pole currect collecting plate 8 is identical with described anode collection plate 7 shapes.
As Fig. 6,7 two pins of anode collection plate 72 weld with the both sides lamination of the anode ear 41 of reeling.
Two pins of negative pole currect collecting plate 8 respectively with the both sides lamination welding of the negative electrode lug 51 of reeling.
One end of anode collection plate body 71 disconnected pins and 2 welding of described positive terminal, an end of the disconnected pin of negative pole currect collecting plate body and 3 welding of described negative terminal.
Negative pole currect collecting plate 8, negative terminal 3 materials are aluminium.
The coiled lithium ion electrical core of power battery also comprises explosion-proof valve 6, and described explosion-proof valve 6 is arranged on described lamina tecti 11 middle parts.
Claims (6)
1. coiled lithium ion electrical core of power battery, comprise shell, anode and cathode terminals, positive plate, negative plate, barrier film and be respectively formed at positive plate and negative plate on anode ear and negative electrode lug, it is characterized in that, described anode ear and negative electrode lug are respectively formed on the length direction of described positive plate and negative plate, and anode ear and negative electrode lug are positioned at described electric core both sides;
Described electric core also comprises anode collection plate and the negative pole currect collecting plate that is oppositely arranged on both sides, described electric core top, and described anode collection plate comprises the body that is made of two rectangular sheet metals and fixedlys connected two pins of both sides, a strip metal sheet end therein; Described negative pole currect collecting plate is identical with described anode collection plate shape;
Two pins of described anode collection plate respectively with the both sides lamination welding of the anode ear of reeling, two pins of negative pole currect collecting plate respectively with the both sides lamination welding of the anode ear of reeling;
One end of the disconnected pin of described anode collection plate body and the welding of described positive terminal, an end of the disconnected pin of negative pole currect collecting plate body and the welding of described negative terminal, described positive terminal and negative terminal are arranged on the two ends of described electric core housing top end face.
2. coiled lithium ion electrical core of power battery as claimed in claim 1 is characterized in that, described shell top end face is the strip lamina tecti, and described positive terminal and negative terminal are separately positioned on described lamina tecti two ends.
3. coiled lithium ion electrical core of power battery as claimed in claim 1 is characterized in that: two rectangular sheet metals of the body of described anode collection plate are one, are to be bent into the right angle by a rectangle sheet metal to constitute; Pin is the rectangle sheet metal, and two pins is parallel to each other and all perpendicular to two rectangular sheet metals of anode collection plate body; Described negative pole currect collecting plate is identical with described anode collection plate shape.
4. coiled lithium ion electrical core of power battery as claimed in claim 1 is characterized in that: described negative pole currect collecting plate and described negative terminal material are aluminium.
5. coiled lithium ion electrical core of power battery as claimed in claim 1 is characterized in that: described anode collection plate and described positive terminal material are copper.
6. coiled lithium ion electrical core of power battery as claimed in claim 2 is characterized in that, described coiled lithium ion electrical core of power battery also comprises explosion-proof valve, and described explosion-proof valve is arranged on described lamina tecti middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206031833U CN201845835U (en) | 2010-11-11 | 2010-11-11 | Coiled lithium ion power battery cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206031833U CN201845835U (en) | 2010-11-11 | 2010-11-11 | Coiled lithium ion power battery cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201845835U true CN201845835U (en) | 2011-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206031833U Expired - Fee Related CN201845835U (en) | 2010-11-11 | 2010-11-11 | Coiled lithium ion power battery cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201845835U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020156198A1 (en) * | 2019-01-30 | 2020-08-06 | 宁德时代新能源科技股份有限公司 | Battery unit and battery module |
| CN112366377A (en) * | 2020-11-09 | 2021-02-12 | 华霆（合肥）动力技术有限公司 | Pole piece fracture prevention device and battery cell module |
-
2010
- 2010-11-11 CN CN2010206031833U patent/CN201845835U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020156198A1 (en) * | 2019-01-30 | 2020-08-06 | 宁德时代新能源科技股份有限公司 | Battery unit and battery module |
| US11811017B2 (en) | 2019-01-30 | 2023-11-07 | Contemporary Amperex Technology Co., Limited | Battery unit and battery module |
| CN112366377A (en) * | 2020-11-09 | 2021-02-12 | 华霆（合肥）动力技术有限公司 | Pole piece fracture prevention device and battery cell module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GAOPING TANGYI NEW ENERGY CO., LTD. Free format text: FORMER OWNER: SHANGHAI TANGYI NEW ENERGY TECHNOLOGY CO., LTD. Effective date: 20141219 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201806 JIADING, SHANGHAI TO: 048404 JINCHENG, SHAANXI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141219 Address after: 048404, Shanxi Town, Gaoping Province, Gou Zhen Village (Jincheng new energy science and Technology Innovation Park) Patentee after: Gaoping Tangyixin New Energy Technology Co., Ltd. Address before: 201806, room 5358, 408 Shanghai Yi Road, Shanghai, Jiading District Patentee before: Shanghai Tangyi New Energy Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20151111 |