CN201387920Y - Wound type lithium battery core - Google Patents
Wound type lithium battery core Download PDFInfo
- Publication number
- CN201387920Y CN201387920Y CN200920116886U CN200920116886U CN201387920Y CN 201387920 Y CN201387920 Y CN 201387920Y CN 200920116886 U CN200920116886 U CN 200920116886U CN 200920116886 U CN200920116886 U CN 200920116886U CN 201387920 Y CN201387920 Y CN 201387920Y
- Authority
- CN
- China
- Prior art keywords
- lug
- negative
- welded
- positive
- lithium battery
- 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 - Fee Related
Links
Images
Classifications
-
- 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
-
- 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 provides a wound type lithium battery core, which belongs to the field of batteries and solves the problems that the existing wound lithium battery core is high in internal resistance, high in discharging temperature of large current, low in discharging platform, poor in safety and the like. The wound aluminum battery core comprises a separating film, a positive electrode plate, a negative electrode plate and tabs, the separating film is positioned between the positive electrode plate and the negative electrode plate, the positive electrode plate and the negative electrode plate are respectively welded with at least one tab, at least one tab is welded on the positive electrode plate at intervals, and at least one tab is welded on the negative electrode plate at intervals. The wound lithium core has the advantages of small internal resistance of cores, low discharging temperature of large current, high discharging platform and high safety property.
Description
Technical field
The utility model belongs to field of batteries, relates to a kind of lithium battery electric core, particularly a kind of convoluted lithium battery electric core.
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 exist above-mentioned problem at existing convoluted lithium battery electric core, 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 can realize by following technical proposal: a kind of convoluted lithium battery electric core, comprise barrier film, positive/negative plate and lug composition, barrier film is between positive plate and negative plate, it is characterized in that, on positive/negative plate, all be welded with at least one lug, on positive plate, be welded with at least one lug at interval, on negative plate, be welded with at least one lug at interval.
Owing on positive/negative plate, respectively be welded with more than one lug, cause the internal resistance of cell little, the heavy-current discharge temperature reduces, the discharge platform height.
In above-mentioned convoluted lithium battery electric core, lug before the head of described every positive plate just is welded with, the afterbody of positive plate is welded with positive back lug, the head of described every negative plate is welded with negative preceding lug, the afterbody of negative plate is welded with negative back lug, and two pairs of overlapping lugs are arranged after the electric core winding moulding.
In above-mentioned convoluted lithium battery electric core, described just before lug and positive back lug is overlapped and draw lug and weld together with just outer, negative before lug and negative back lug is overlapped and draw lug and weld together outward with negative.
Barrier film is positioned between positive/negative plate, every positive/negative plate head and afterbody all are welded with lug, positive plate, negative plate and barrier film are successively reeled to same direction by the volume core anchor clamps of special use, and keep positive plate, negative plate and 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, just preceding lug and positive back lug are overlapped and draw lug and weld together with just outer, lug and negative back lug are overlapped and draw lug and weld together outward with negative before negative, draw a pair of lug and derive outside the pack case.
Compared with prior art, the head and the afterbody two ends of every positive/negative plate of this convoluted lithium battery electric core all are welded with a lug, 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
Fig. 1 is the structural representation of this convoluted lithium battery electric core.
Fig. 2 is the structural representation of positive plate in this convoluted lithium battery electric core.
Fig. 3 is the structural representation of negative plate in this convoluted lithium battery electric core.
Fig. 4 is this convoluted lithium battery electric core package assembly schematic diagram.
Among the figure, 1, barrier film; 2, positive plate; 21, just preceding lug; 22, positive back lug; 3, negative plate; 31, negative preceding lug; 32, bear the back lug; 4, the just outer lug that draws; 5, the negative outer lug that draws.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As Fig. 1, Fig. 2 and shown in Figure 3, this convoluted lithium battery electric core is by barrier film 1, positive plate 2, and negative plate 3 and lug are formed, and barrier film 1 is between positive plate 2 and negative plate 3.The head of positive plate 2 be welded with one just before lug 21, afterbody at positive plate 2 is welded with a positive back lug 22, the head end of negative plate 3 be welded with one negative before lug 31, tail end at negative plate 3 is welded with a negative back lug 32, that is to say that every positive/negative plate head and afterbody all are welded with lug, positive plate 2, negative plate 3 and barrier film 1 are successively reeled to same direction by the volume core anchor clamps of special use, and keep positive plate 2, align all the time in the center of negative plate 3 and barrier film 1 Width, tensioning dynamics unanimity, electric core will have two pairs of lugs to draw behind the coiling and molding, article two, anode ear overlapped and and just outer to draw lug 4 welded together, article two, negative electrode lug overlapped and and negative outer to draw lug 5 welded together, draw a pair of lug and derive outside the pack case.
As shown in Figure 4, two pairs of overlapping just preceding lugs 21 and positive back lug 22, negative preceding lug 31 and negative back lug 32 are arranged after the moulding of the utility model electric core winding, just preceding lug 21 and positive back lug 22 are overlapped and draw lug 4 and weld together with just outer, lug 31 and negative back lug 32 are overlapped and draw lug 5 and weld together outward with negative before negative, draw a pair of lug and derive outside the pack case.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (3)
1, a kind of convoluted lithium battery electric core, comprise barrier film (1), positive/negative plate (3) and lug composition, barrier film (1) is positioned between positive plate (2) and the negative plate (3), it is characterized in that, on positive/negative plate (3), all be welded with at least one lug, go up the interval at positive plate (2) and be welded with at least one lug, go up at negative plate (3) and be welded with at least one lug at interval.
2, convoluted lithium battery electric core according to claim 1, it is characterized in that, lug (21) before the head of described every positive plate (2) just is welded with, the afterbody of positive plate (2) is welded with positive back lug (22), the head of described every negative plate (3) is welded with negative preceding lug (31), the afterbody of negative plate (3) is welded with negative back lug (32), 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, described just before lug (21) and positive back lug (22) is overlapped and draw lug (4) and weld together with just outer, negative before lug (31) and negative back lug (32) is overlapped and with bear outside draw lug (5) and weld together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920116886U CN201387920Y (en) | 2009-04-03 | 2009-04-03 | Wound type lithium battery core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920116886U CN201387920Y (en) | 2009-04-03 | 2009-04-03 | Wound type lithium battery core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201387920Y true CN201387920Y (en) | 2010-01-20 |
Family
ID=41580462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920116886U Expired - Fee Related CN201387920Y (en) | 2009-04-03 | 2009-04-03 | Wound type lithium battery core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201387920Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569711A (en) * | 2011-12-29 | 2012-07-11 | 曙鹏科技（深圳）有限公司 | Lithium ion battery and manufacturing method thereof |
| CN107729607A (en) * | 2017-09-12 | 2018-02-23 | 合肥国轩高科动力能源有限公司 | A kind of big battery core discharge and recharge Temperature Distribution method of testing of LiFePO4 |
-
2009
- 2009-04-03 CN CN200920116886U patent/CN201387920Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569711A (en) * | 2011-12-29 | 2012-07-11 | 曙鹏科技（深圳）有限公司 | Lithium ion battery and manufacturing method thereof |
| CN102569711B (en) * | 2011-12-29 | 2014-10-01 | 曙鹏科技（深圳）有限公司 | Lithium ion battery and manufacturing method thereof |
| CN107729607A (en) * | 2017-09-12 | 2018-02-23 | 合肥国轩高科动力能源有限公司 | A kind of big battery core discharge and recharge Temperature Distribution method of testing of LiFePO4 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2011016986A8 (en) | Negative plate for lead acid battery | |
| CN201387920Y (en) | Wound type lithium battery core | |
| CN201956416U (en) | Positive pole piece of lithium ion battery | |
| CN202384439U (en) | Lithium ion battery winding structure | |
| CN204991890U (en) | Arc lithium ion battery | |
| CN201717337U (en) | Rolled lithium ion battery | |
| CN202817080U (en) | Lithium ion battery and anti-acupuncture structural cell thereof | |
| CN203103388U (en) | Battery terminal and lead-acid storage battery | |
| CN200979897Y (en) | A winding type electrical core of a lithium battery | |
| CN205355189U (en) | Novel coiling formula lead accumulator | |
| CN202339959U (en) | Multi-winding core lithium ion battery | |
| CN105489947B (en) | A kind of novel coiling formula lead accumulator and its production technology | |
| CN205723826U (en) | A kind of lamination coiled lithium ion battery | |
| CN212587557U (en) | Winding type battery cell and lithium ion battery | |
| CN203733900U (en) | Flexible package lithium battery | |
| CN202695643U (en) | Lithium-ion battery rolling core structure battery cell and lithium-ion battery thereof | |
| CN202058814U (en) | Circular lithium ion battery | |
| CN113471638A (en) | Novel super-high-rate large-cylinder polymer lithium ion battery for electronic cigarette | |
| CN108206302B (en) | Lithium ion battery winding structure | |
| CN201927677U (en) | Internal series connection type lithium battery | |
| CN102136606A (en) | Lithium ion battery preparation method | |
| CN202695597U (en) | Lithium battery structure | |
| CN206742423U (en) | A kind of core strueture and battery | |
| CN203179997U (en) | Coiled full-tab high-energy power battery | |
| CN201069801Y (en) | Dual-negative pole lithium battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20140403 |