CN201364932Y - Electric core of lithium ion battery and lithium ion battery using same - Google Patents
Electric core of lithium ion battery and lithium ion battery using same Download PDFInfo
- Publication number
- CN201364932Y CN201364932Y CNU2009201299778U CN200920129977U CN201364932Y CN 201364932 Y CN201364932 Y CN 201364932Y CN U2009201299778 U CNU2009201299778 U CN U2009201299778U CN 200920129977 U CN200920129977 U CN 200920129977U CN 201364932 Y CN201364932 Y CN 201364932Y
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- China
- Prior art keywords
- plate
- lithium ion
- negative plate
- positive plate
- ion battery
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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 discloses an electric core of a lithium ion battery and a lithium ion battery using the electric core. The electric core comprises a positive plate, a negative plate and a diaphragm which is clamped between the positive plate and the negative plate; at least one edge of at least one of the positive plate, the negative plate and the diaphragm is provided with insulating glue. The utility model can increase the width of the plate by arranging the insulating glue on at least one edge of at least one of the positive plate, the negative plate and the diaphragm, improve designed capacity of the battery, fully utilize an effective space of a containing cavity of the battery, and lead the volume to be higher than capacity, and is more obvious in the application in a button type battery. In addition, the utility model also can prevent plate displacement, reduce forming procedure difficulty of the electric core, and can prevent capacity loss of periphery power removal of the plate in charge and discharge circulation and potential safety hazard of the battery caused thereby.
Description
Technical field
The utility model relates to and is used for directly changing the device that chemical energy is an electric energy, and particularly a kind of lithium ion battery cell also is particularly related to a kind of lithium ion battery.
Background technology
Lithium ion battery is a kind of common battery, and battery battery core comprises positive plate, negative plate and barrier film.Positive plate is that positive electrode is coated in metallic matrix (aluminium foil) surface, negative plate is that negative material is coated in metallic matrix (Copper Foil) surface, pole piece is through cutting into design size, cut the exposed and associated metal burr of pole piece edge, back section matrix, for preventing that burr from penetrating barrier film and causing the both positive and negative polarity short circuit, solve by positive plate, negative plate and the dislocation of barrier film width in design, cause the intracavity space underutilization of battery, more obvious in the small size battery.In addition, electric core is when coiling or stacked moulding, and positive plate, negative plate and barrier film contraposition difficulty are big, easy deviation in the operation, operation is required high, and electric core pole piece edge powder in charge and discharge cycles continues random coming off, and battery capacity is quickened decay and with potential safety hazard.
Summary of the invention
First technical problem to be solved in the utility model is exactly in order to overcome above deficiency, and it is low and can improve a kind of lithium ion battery cell that the battery intracavity space utilizes to have proposed a kind of cost.
Second technical problem to be solved in the utility model is exactly in order to overcome above deficiency, and it is low and can improve a kind of lithium ion battery that the battery intracavity space utilizes to have proposed a kind of cost.
Technical problem of the present utility model is solved by following technical scheme:
A kind of lithium ion battery cell comprises positive plate, negative plate and barrier film, described diaphragm clip between positive plate and negative plate, Yi Bian in described positive plate, negative plate and the barrier film at least one be provided with insulation glue at least.
Whole edges of described negative plate all are provided with insulation glue.
Whole edges of described positive plate and barrier film all are provided with insulation glue.
Describedly be coated in insulating cement water level on positive plate or the negative plate in the metallic matrix edge of positive plate or negative plate.
Described positive plate, negative plate and barrier film comprise a plurality of monomers, and the cross section of described monomer is on the basis of rectangle its four angles to be become circular arc, and the coupling part of adjacent two monomers is a metallic matrix, also is provided with insulation glue on the described metallic matrix.
A kind of lithium ion battery comprises electric core, and described electric core comprises positive plate, negative plate and barrier film, described diaphragm clip between positive plate and negative plate, Yi Bian in described positive plate, negative plate and the barrier film at least one be provided with insulation glue at least.
Whole edges of described negative plate all are provided with insulation glue.
Whole edges of described positive plate and barrier film all are provided with insulation glue.
Describedly be coated in insulating cement water level on positive plate or the negative plate in the metallic matrix edge of positive plate or negative plate.
Described positive plate, negative plate and barrier film comprise a plurality of monomers, and the cross section of described monomer is on the basis of rectangle its four angles to be become circular arc, and the coupling part of adjacent two monomers is a metallic matrix, also is provided with insulation glue on the described metallic matrix.
The beneficial effect that the utility model is compared with the prior art is: the utility model by in positive plate, negative plate and barrier film at least one at least on one side on be provided with insulation glue and can increase the pole piece width, improve the design capacity of battery, make full use of the useful space in battery container chamber, make volume and capacity ratio higher, more obvious in the coin shape battery applications.In addition, the utility model also can prevent the pole piece displacement, reduces the operation difficulty of electric core moulding, and can prevent the capacitance loss of pole piece edge shedding in the charge and discharge cycles, and the cell safety hidden danger that causes thus.
Description of drawings
Fig. 1 is the structural representation of the square electric core of the utility model embodiment;
Fig. 2 is a kind of pole piece of the utility model embodiment or the structural representation of barrier film;
Fig. 3 is the another kind of pole piece of the utility model embodiment or the structural representation of barrier film;
Fig. 4 is the structural representation of the circular electric core of the utility model embodiment;
Fig. 5 is the structural representation that adopts the electric core that pole piece shown in Figure 3 or barrier film be stacked to.
Embodiment
Also in conjunction with the accompanying drawings the utility model is described in further details below by concrete execution mode.
Shown in Fig. 1,2,4, a kind of lithium ion battery cell comprises positive plate 1, negative plate 2 and barrier film 3, and described barrier film 3 is clipped between positive plate 1 and the negative plate 2.As shown in Figure 2, Yi Bian in described positive plate 1, negative plate 2 and the barrier film 3 at least one be provided with at least the insulation glue 4.Promptly in positive plate 1, negative plate 2 and barrier film 3, be provided with insulation glue 4 on the one side at least at least one a edge, b edge, c edge and the d edge.Insulation glue 4 can be coated with or be sprayed on the described edge.
Preferably, whole edges of described negative plate all are provided with insulation glue.As shown in Figure 2, promptly all be provided with insulation glue 4 at a edge, b edge, c edge and the d edge of negative plate 2.
Further preferably, whole edges of described positive plate, negative plate and barrier film all are provided with insulation glue.The insulation glue that positive plate and diaphragm edge are provided with can be with reference to negative plate.Insulation glue can be coated in the metallic matrix edge of positive plate, negative plate.
The utility model by in positive plate, negative plate and barrier film at least one at least on one side on be provided with insulation glue and can increase the pole piece width, improve the design capacity of battery, make full use of the useful space in battery container chamber, make volume and capacity ratio higher, more obvious in the coin shape battery applications.In addition, the utility model also can prevent the pole piece displacement, reduces the operation difficulty of electric core moulding, and can prevent the capacitance loss of pole piece edge shedding in the charge and discharge cycles, and the cell safety hidden danger that causes thus.
As shown in Figure 2, the shape of described positive plate, negative plate and barrier film can be rectangle.Can make square electric core by winding method as shown in Figure 1 puts into the battery container chamber and forms lithium ion battery.Can also make circular electric core by winding method as shown in Figure 4 puts into the battery container chamber and forms lithium ion battery.
As described in Figure 3, described positive plate, negative plate and barrier film comprise a plurality of monomers 6, and the cross section of described monomer is on the basis of rectangle its four angles to be become circular arc.Making electric core by stacked mode as shown in Figure 5 puts into the battery container chamber and can form lithium ion battery.This electric core can be used in the button cell.The edge of described monomer 6 is provided with insulation glue 4, and promptly at least one is provided with insulation glue in a edge of monomer 6, b edge, the c edge, preferably is provided with insulation glue all.The coupling part of adjacent two monomers 6 is a metallic matrix 7, also is provided with insulation glue on the described metallic matrix 7, thereby strengthens fixing between pole piece and the barrier film.
As shown in Figure 4, a kind of lithium ion battery comprises housing 8, lid 9, and electric core is formed with host cavity between described housing 8, the lid 9, and described electric core is positioned at described host cavity.Described electric core comprises positive plate, negative plate and barrier film, described diaphragm clip between positive plate and negative plate, Yi Bian in described positive plate, negative plate and the barrier film at least one be provided with insulation glue at least.
Preferably, whole edges of described negative plate all are provided with insulation glue.
Further preferably, whole edges of described positive plate, negative plate and barrier film all are provided with insulation glue.Insulation glue can be coated in the metallic matrix edge of positive plate, negative plate.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (10)
1. a lithium ion battery cell comprises positive plate, negative plate and barrier film, and described diaphragm clip is characterized in that between positive plate and negative plate: Yi Bian in described positive plate, negative plate and the barrier film at least one be provided with insulation glue at least.
2. lithium ion battery cell according to claim 1 is characterized in that: whole edges of described negative plate all are provided with insulation glue.
3. lithium ion battery cell according to claim 1 and 2 is characterized in that: whole edges of described positive plate and barrier film all are provided with insulation glue.
4. lithium ion battery cell according to claim 3 is characterized in that: describedly be coated in insulating cement water level on positive plate or the negative plate in the metallic matrix edge of positive plate or negative plate.
5. lithium ion battery cell according to claim 3, it is characterized in that: described positive plate, negative plate and barrier film comprise a plurality of monomers, the cross section of described monomer is on the basis of rectangle its four angles to be become circular arc, the coupling part of adjacent two monomers is a metallic matrix, also is provided with insulation glue on the described metallic matrix.
6. lithium ion battery, comprise electric core, described electric core comprises positive plate, negative plate and barrier film, and described diaphragm clip is characterized in that between positive plate and negative plate: Yi Bian in described positive plate, negative plate and the barrier film at least one be provided with insulation glue at least.
7. lithium ion battery according to claim 6 is characterized in that: whole edges of described negative plate all are provided with insulation glue.
8. want 6 or 7 described lithium ion batteries according to right, it is characterized in that: whole edges of described positive plate and barrier film all are provided with insulation glue.
9. lithium ion battery according to claim 8 is characterized in that: describedly be coated in insulating cement water level on positive plate or the negative plate in the metallic matrix edge of positive plate or negative plate.
10. lithium ion battery according to claim 8, it is characterized in that: described positive plate, negative plate and barrier film comprise a plurality of monomers, the cross section of described monomer is on the basis of rectangle its four angles to be become circular arc, the coupling part of adjacent two monomers is a metallic matrix, also is provided with insulation glue on the described metallic matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201299778U CN201364932Y (en) | 2009-02-20 | 2009-02-20 | Electric core of lithium ion battery and lithium ion battery using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201299778U CN201364932Y (en) | 2009-02-20 | 2009-02-20 | Electric core of lithium ion battery and lithium ion battery using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201364932Y true CN201364932Y (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2009201299778U Expired - Fee Related CN201364932Y (en) | 2009-02-20 | 2009-02-20 | Electric core of lithium ion battery and lithium ion battery using same |
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| CN (1) | CN201364932Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103797636A (en) * | 2012-05-31 | 2014-05-14 | Lg化学株式会社 | Electrode assembly having stepped levels and battery cell, battery pack, and device comprising same |
| CN107528087A (en) * | 2017-09-30 | 2017-12-29 | 惠州亿纬锂能股份有限公司 | A kind of lithium ion battery lamination battery core and preparation method thereof |
| CN108539061A (en) * | 2017-03-06 | 2018-09-14 | 湖南妙盛汽车电源有限公司 | A kind of soft-package battery |
| CN108539100A (en) * | 2017-03-06 | 2018-09-14 | 湖南妙盛汽车电源有限公司 | A kind of lithium battery |
| CN110165280A (en) * | 2019-05-29 | 2019-08-23 | 成都特隆美储能技术有限公司 | The lamination process and its battery of a kind of vibration resistance, long-life energy-storage battery |
| WO2019169557A1 (en) * | 2018-03-06 | 2019-09-12 | 深圳前海优容科技有限公司 | Cell and manufacturing method therefor, battery, and electronic device |
| CN111952518A (en) * | 2019-05-14 | 2020-11-17 | 宁德新能源科技有限公司 | Electrochemical device |
-
2009
- 2009-02-20 CN CNU2009201299778U patent/CN201364932Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103797636A (en) * | 2012-05-31 | 2014-05-14 | Lg化学株式会社 | Electrode assembly having stepped levels and battery cell, battery pack, and device comprising same |
| US9660296B2 (en) | 2012-05-31 | 2017-05-23 | Lg Chem, Ltd. | Electrode assembly having step, battery cell, battery pack and device including the same |
| CN108539061A (en) * | 2017-03-06 | 2018-09-14 | 湖南妙盛汽车电源有限公司 | A kind of soft-package battery |
| CN108539100A (en) * | 2017-03-06 | 2018-09-14 | 湖南妙盛汽车电源有限公司 | A kind of lithium battery |
| CN107528087A (en) * | 2017-09-30 | 2017-12-29 | 惠州亿纬锂能股份有限公司 | A kind of lithium ion battery lamination battery core and preparation method thereof |
| WO2019169557A1 (en) * | 2018-03-06 | 2019-09-12 | 深圳前海优容科技有限公司 | Cell and manufacturing method therefor, battery, and electronic device |
| CN111952518A (en) * | 2019-05-14 | 2020-11-17 | 宁德新能源科技有限公司 | Electrochemical device |
| US11658366B2 (en) | 2019-05-14 | 2023-05-23 | Dongguan Poweramp Technology Limited | Electrochemical device |
| CN110165280A (en) * | 2019-05-29 | 2019-08-23 | 成都特隆美储能技术有限公司 | The lamination process and its battery of a kind of vibration resistance, long-life energy-storage battery |
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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: 20091216 Termination date: 20120220 |