CN200979897Y - A winding type electrical core of a lithium battery - Google Patents
A winding type electrical core of a lithium battery Download PDFInfo
- Publication number
- CN200979897Y CN200979897Y CNU200620067095XU CN200620067095U CN200979897Y CN 200979897 Y CN200979897 Y CN 200979897Y CN U200620067095X U CNU200620067095X U CN U200620067095XU CN 200620067095 U CN200620067095 U CN 200620067095U CN 200979897 Y CN200979897 Y CN 200979897Y
- Authority
- CN
- China
- Prior art keywords
- lug
- welded
- positive
- lithium battery
- negative plate
- 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.)
- Expired - Lifetime
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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
Abstract
The utility model relates to a winded-type lithium battery electrical core, belonging to the battery technical field, wherein the head and the tail end of each positive and negative electrode flake of battery core are welded with a polar ear, two couple of polar ears of the core are leaded out after winded and shaped, the two positive polar ears are mutually overlapped and welded with an external guide polar ear, the two negative polar ears are mutually overlapped and welded with an external guide polar ear, a pair of polar ears is leaked outside a packing shell. The utility model has simple structure, low internal resistance of shaped electrical core, low discharging temperature at large current, and high discharging platform.
Description
Technical field
The convoluted lithium battery electric core of the utility model belongs to field of batteries, particularly relates to a kind of improvement technology that adopts convoluted structure lithium cell.
Background technology
At present, convoluted electric core structure of lithium battery includes barrier film, positive/negative plate and a pair of lug, adopts every pole piece to weld a lug end to end, and every of winding type battery pole piece is only with a lug, cause internal resistance of cell height, heavy-current discharge temperature height, platform is low, particularly when heavy-current discharge, the discharge temp height, battery security is affected, and causes battery to catch fire easily, brings very big harm to the user.
Summary of the invention
The purpose of this utility model is to avoid the deficiencies in the prior art part and provides a kind of electric in-core resistance little, and the heavy-current discharge temperature is low, the convoluted lithium battery electric core that discharge platform is high.
The purpose of this utility model is achieved through the following technical solutions, include barrier film, positive/negative plate and lug are formed, and barrier film is positioned between positive/negative plate, respectively is welded with more than one lug on positive/negative plate, on positive plate, be welded with more than one lug at interval, on negative plate, be welded with more than one lug at interval,, cause the internal resistance of cell little owing on positive/negative plate, respectively be welded with more than one lug, the heavy-current discharge temperature reduces, the discharge platform height.
The head and tail two ends of every positive/negative plate of convoluted lithium battery electric core of the present utility model all are welded with a lug, and two pairs of overlapping lugs are arranged after the electric core winding moulding.Barrier film is positioned between positive/negative plate, every positive/negative plate all is welded with lug end to end, positive/negative plate and barrier film are successively reeled to same direction by the volume core anchor clamps of special use, and keep positive/negative plate, diaphragm center to align all the time, tensioning dynamics unanimity, electric core will have two pairs of lugs to draw behind the coiling and molding, two anode ears overlapped and and to draw lug outward welded together, article two, negative electrode lug overlapped and and to draw lug outward welded together, draw a pair of lug and derive outside the pack case.
The head and tail two ends of every positive/negative plate of convoluted lithium battery electric core of the present utility model all are welded with a lug.
The utility model is simple in structure, and the electric in-core resistance after the moulding is little, and the heavy-current discharge temperature is low, the discharge platform height.
Description of drawings
Accompanying drawing 1 is the utility model electric core structure of lithium battery schematic diagram.
Accompanying drawing 2 is positive plate structural representations in the utility model lithium battery electric core.
Accompanying drawing 3 is negative plate structural representations in the utility model lithium battery electric core.
Accompanying drawing 4 is the utility model lithium battery electric core package assembly schematic diagrames.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As accompanying drawing 1, accompanying drawing 2, shown in the accompanying drawing 3, convoluted lithium battery electric core of the present utility model is by barrier film 6, positive plate 5, negative plate 7 and lug are formed, barrier film is positioned between positive/negative plate, head end at positive plate 5 is welded with a lug 1, tail end at positive plate 5 is welded with a lug 3, head end at negative plate 7 is welded with a lug 2, tail end at negative plate 7 is welded with a lug 4, every positive/negative plate all is welded with lug end to end, positive/negative plate and barrier film are successively reeled to same direction by the volume core anchor clamps of special use, and maintenance positive/negative plate, align all the time in the center of barrier film Width, tensioning dynamics unanimity, electric core will have two pairs of lugs to draw behind the coiling and molding, 2 anode ears overlapped and and to draw lug outward welded together, article 2, negative electrode lug overlapped and and to draw lug outward welded together, draw a pair of lug and derive outside the pack case.
As shown in Figure 4, two pairs of overlapping lugs 1 and lug 3, lug 2 and lug 4 are arranged after the moulding of the utility model electric core winding, article two, anode ear 1,3 overlapped and and to draw lug 8 outward welded together, article two, negative electrode lug 2,4 overlapped and and to draw lug 9 outward welded together, draw a pair of lug and derive outside the pack case.
Claims (3)
1, a kind of convoluted lithium battery electric core, including barrier film, positive/negative plate and lug forms, barrier film is positioned between positive/negative plate, it is characterized in that on positive/negative plate, respectively being welded with more than one lug, on positive plate, be welded with more than one lug at interval, on negative plate, be welded with more than one lug at interval.
2, convoluted lithium battery electric core according to claim 1 is characterized in that the head and tail two ends of every positive/negative plate all are welded with a lug, and two pairs of overlapping lugs are arranged after the electric core winding moulding.
3, convoluted lithium battery electric core according to claim 2, it is characterized in that two anode ears overlapped and and to draw lug outward welded together, two negative electrode lugs are overlapped and and to draw lug outward welded together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620067095XU CN200979897Y (en) | 2006-10-31 | 2006-10-31 | A winding type electrical core of a lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620067095XU CN200979897Y (en) | 2006-10-31 | 2006-10-31 | A winding type electrical core of a lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200979897Y true CN200979897Y (en) | 2007-11-21 |
Family
ID=38980279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200620067095XU Expired - Lifetime CN200979897Y (en) | 2006-10-31 | 2006-10-31 | A winding type electrical core of a lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200979897Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208688A (en) * | 2011-05-11 | 2011-10-05 | 江苏富朗特新能源有限公司 | Wound high-power lithium battery cell and manufacturing method thereof |
| WO2022267925A1 (en) * | 2021-06-23 | 2022-12-29 | 东莞新能安科技有限公司 | Electrochemical device and electronic device |
-
2006
- 2006-10-31 CN CNU200620067095XU patent/CN200979897Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208688A (en) * | 2011-05-11 | 2011-10-05 | 江苏富朗特新能源有限公司 | Wound high-power lithium battery cell and manufacturing method thereof |
| WO2022267925A1 (en) * | 2021-06-23 | 2022-12-29 | 东莞新能安科技有限公司 | Electrochemical device and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGZHOU FULLRIVER BATTERY NEW TECHNOLOGY CO., LT Free format text: FORMER NAME: GUANGZHOU FULLRIVER BATTERY NEW TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 511400 Guangdong city of Guangzhou province Panyu District city bridge embankment road No. 22 Patentee after: Guangzhou FULLRIVER Battery New Technology Co., Ltd. Address before: 511400 Guangdong city of Guangzhou province Panyu District city bridge embankment road No. 22 Patentee before: Guangzhou Fullriver Battery New Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 511475, Guangdong, Guangzhou province Nansha District Tung Chung Town fine Lek Village (factory building two) (plant three) Patentee after: Guangzhou FULLRIVER Battery New Technology Co., Ltd. Address before: 511400 Guangdong city of Guangzhou province Panyu District city bridge embankment road No. 22 Patentee before: Guangzhou FULLRIVER Battery New Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071121 |
|
| EXPY | Termination of patent right or utility model |