CN105161673A - Producing process of multi-tab battery cell and multi-tab battery - Google Patents
Producing process of multi-tab battery cell and multi-tab battery Download PDFInfo
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- CN105161673A CN105161673A CN201510691844.XA CN201510691844A CN105161673A CN 105161673 A CN105161673 A CN 105161673A CN 201510691844 A CN201510691844 A CN 201510691844A CN 105161673 A CN105161673 A CN 105161673A
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- negative electrode
- negative
- lug
- anode ear
- plate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
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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
-
- 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 invention relates to the technical field of production of lithium batteries and particularly relates to a producing process of multi-tab battery cell and a multi-tab battery. The producing process comprises the following steps: A. intermittently coating a positive plate and a negative plate with active slurry to prepare the positive plate and the negative plate which are arranged in a coating area and a blank area in sequence; B. respectively welding a first positive tab and a first negative tab in the blank area for the positive plate and the negative plate prepared in the step A; C. overlaying the electrode plates prepared in the step B, and arranging the first positive tab and the first negative tab in a staggering manner; D. coiling the electrode plates prepared in the step C to form a coiling core with a certain angle, and packaging the coiling core with the first positive tab or the first negative tab; and E. carrying out coiling operation by taking the coiling core as a coiling shaft, welding a second positive tab at the position, corresponding to the first positive plate, of the positive plate in the blank area, and welding a second negative tab at the position, corresponding to the first negative plate, of the negative plate in the blank area, wherein the condition that all the positive tabs are aligned and all the negative tabs are aligned can be ensured.
Description
Technical field
The present invention relates to lithium battery production technical field, particularly relate to a kind of manufacturing process and multi pole ears battery of multi pole ears battery core.
Background technology
Nowadays, portable type electronic product has become requisite instrument, along with the volume of electronic product is more and more less, the battery that people are little in the urgent need to volume, power is high, stability is high, fail safe is high meets the electronic product demand growing to battery performance.Existing lithium ion battery is mostly stacking obtained by both positive and negative polarity pole piece, and between anode pole piece and cathode pole piece between be separated with insulation diaphragm or insulation rubberised layer, pole piece is coated with active material layer, is connected with lug, preferred lug should with electrode slice by being welded to connect.For improving battery performance further, need to arrange multiple lug at pole piece, need again during winding to ensure multiple anode ear energy alignment, application number be 200910192367.7 patent application provide a kind of spiral-line multi-pole lug lithium ion battery and manufacture method thereof, it can ensure multiple anode ear energy alignment to a certain extent, but by this method, its lug is formed by cross cutting, lug and electrode slice cannot by being welded to connect, and exist higher to analyse lithium risk.
Therefore being necessary to provide one can ensure multiple lug alignment, lug and the battery core production technology of electrode slice by being welded to connect being allowed again.
Summary of the invention
The object of the invention is to the manufacturing process that a kind of multi pole ears battery core is provided for the deficiencies in the prior art, multiple lug alignment can be ensured, lug and electrode slice can be allowed again to be produced by the battery core be welded to connect.
For achieving the above object, the manufacturing process of a kind of multi pole ears battery core of the present invention, comprises the steps:
A. coat activated slurry: that is interrupted by active slurry is coated on positive plate and negative plate, makes positive plate and negative plate that applying area and clear area be arranged in order;
B. first pair pole ear is welded: the clear area the first anode ear and the first negative electrode lug being welded on respectively positive plate that steps A obtains and negative plate;
C. superpose positive plate and negative plate: by electrode slice superposition obtained for step B, described first anode ear and the dislocation of the first negative electrode lug are arranged;
D. core is wound into: electrode slice winding certain angle obtained for step C is formed core, and the first anode ear or the first negative electrode lug are wrapped in this core;
E. lower a pair lug is welded: the second anode ear is welded in the position of corresponding first anode ear in positive plate clear area; In negative plate clear area, the second negative electrode lug is welded in the position of corresponding first negative electrode lug;
F is adjacent to lug: the core formed with step D continues winding for spool, and the lug that step e is welded is close to core.
Preferably, described step D is for spool with the first anode ear and the first negative electrode lug, by electrode slice winding 180 degree obtained for step C, the position of corresponding first anode ear and the position mark at negative plate clear area correspondence the first negative electrode lug in positive plate clear area respectively, then by the electrode slice revolution certain angle after winding, the second anode ear and the second negative electrode lug is welded respectively according to the position of described mark.
Preferably, in described step B, described first anode ear and the first negative electrode lug are welded on the obtained positive plate one end of steps A and negative plate one end respectively.
Preferably, by core winding certain angle obtained for step D, position welding the 3rd anode ear of corresponding second anode ear in positive plate clear area; Position welding the 3rd negative electrode lug of corresponding second negative electrode lug in negative plate clear area.
Preferably, described first anode ear, the second anode ear and the 3rd anode ear are separately positioned on the stem of positive plate, middle part and afterbody; First negative electrode lug, the second negative electrode lug and the 3rd negative electrode lug are separately positioned on the stem of negative plate, middle part and afterbody.
Preferably, described second anode ear and the first anode ear are welded on the same side of positive plate; Described second negative electrode lug and the first negative pole lug welding are in the same side of negative plate.
Preferably, repeating said steps E and F welds some anode ears and some negative electrode lugs respectively at positive plate and negative plate successively, and the direction of each winding is identical with coiling direction last time.Preferably, after each soldering polar ear, all on lug, paste insulation gummed paper.
Preferably, in step F, after the lug that step e is welded being close to core, continue winding several 180 degree.
Preferably, also comprise soldering polar ear exit operation: after all lugs are welded in electrode slice, by all anode ear exit welding stacked, by all negative electrode lug exit welding stacked.
Another object of the present invention is to provide a kind of multi pole ears battery for the deficiencies in the prior art, multiple lug alignment, improves battery with two side terminals, and lug and electrode slice, by being welded to connect, avoid electrode slice to analyse lithium.
For achieving the above object, a kind of multi pole ears battery of the present invention, comprises the battery core that in the manufacturing process of above-mentioned a kind of multi pole ears battery core, any one technique is obtained.Beneficial effect of the present invention: concrete, after obtaining positive plate and negative plate, first the first anode ear and the first negative electrode lug are welded on positive plate and negative plate respectively, then with the first anode ear and the first negative electrode lug for spool, one by one anode ear and negative electrode lug are welded on positive plate and the corresponding position of negative plate respectively, the position adjusting tab welding can be convenient in clear area, anode ears all after ensureing winding aligns and the alignment of all negative electrode lugs, can realize arranging comparatively multi pole ears at electrode slice, the rear alignment of multiple lug winding can be ensured, lug and electrode slice can be allowed again by being welded to connect, be convenient to improve the power of battery and capacity, the electrode slice being avoided multi pole ears by welding procedure analyses the phenomenon of lithium in lug district, avoid the problems such as burr that cross cutting lug causes is large, improve battery with two side terminals, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the perspective view of battery core of the present invention.
Fig. 2 is the structural representation at another visual angle of battery core of the present invention.
Fig. 3 be positive plate of the present invention and negative plate flat time the structural representation of cross section.
Fig. 4 is process chart of the present invention.
Fig. 5 is the structural representation of a kind of battery core that the manufacturing process of a kind of multi pole ears battery core of the present invention obtains.
Reference numeral comprises:
1-positive plate, 2-negative plate, 3-applying area
4-clear area
10-anode ear
11-the first anode ear 12-the second anode ear 13-the three anode ear
14-anode ear exit
20-negative electrode lug
21-the first negative electrode lug 22-the second negative electrode lug 23-the three negative electrode lug
24-negative electrode lug exit.
Embodiment
Below in conjunction with accompanying drawing, 1 ~ 5 couple of the present invention is described in detail.
As shown in Figures 1 to 4, the manufacturing process of a kind of multi pole ears battery core of the present invention, comprise the steps: the coat activated slurry of A.: that is interrupted by active slurry is coated on positive plate 1 and negative plate 2, make positive plate 1 and negative plate 2 that applying area 3 and clear area 4 be arranged in order; B. first pair pole ear is welded: the clear area the first anode ear 11 and the first negative electrode lug 21 being welded on respectively positive plate 1 that steps A obtains and negative plate 2; C. superpose positive plate 1 and negative plate 2: by electrode slice superposition obtained for step B, described first anode ear 11 and the dislocation of the first negative electrode lug 21 are arranged; D. core is wound into: electrode slice winding certain angle obtained for step C is formed core, and the first anode ear 11 or the first negative electrode lug 21 are wrapped in this core, concrete the first anode ear 11 and the first negative electrode lug 21 can being wrapped in this core inside or being attached to this core is outside; During winding, negative plate 2 can be wrapped up by positive plate 1, also can wrap up positive plate 1 by negative plate 2; During winding ending, can be the outermost layer that positive plate 1 is wrapped in battery core, also can be the outermost layer that negative plate 2 is wrapped in battery core, and preferably, negative plate 2 is wrapped in the outermost layer of battery core; E. lower a pair lug is welded: the second anode ear 12 is welded in the position of corresponding first anode ear 11 in positive plate 1 clear area 4; In negative plate 2 clear area 4, the second negative electrode lug 22 is welded in the position of corresponding first negative electrode lug 21.Can repeatedly repeat step D and step e, to obtain more lug; F is adjacent to lug: the core formed with step D is spool continuation winding, the lug that step e is welded is close to core, winding several 180 degree is continued after preferably the lug that step e is welded can being close to core, improve the tightness of the second anode ear 12 or the second negative electrode lug 22, avoid battery core loose, improve the globality of battery core, improve the charging and discharging performance of battery core simultaneously, be convenient to the power and the capacity that improve battery.
During coat activated material layer, determining the spacing distance of clear area 4 according to actual design experience, can be by calculating, and can be first will not have the electrode slice coiling and molding of soldering polar ear yet, mark lug position, then spread the position determining clear area 4 according to lug position again out; First the first anode ear 11 and the first negative electrode lug 21 are welded on positive plate 1 and negative plate 2 respectively, be spool interval scrolling with the first anode ear 11 and the first negative electrode lug 21, one by one anode ear 10 and negative electrode lug 20 be welded on respectively the corresponding position of positive plate 1 and negative plate 2; The position adjusting tab welding can be convenient in clear area 4, ensures that the rear all anode ears 10 of winding align and all negative electrode lugs 20 align, can realize arranging comparatively multi pole ears at electrode slice, be convenient to improve the power of battery and capacity; Analyse the phenomenon of lithium by the welding lug district that avoids knowing clearly, avoid the problems such as burr that cross cutting lug causes is large; Improve battery with two side terminals, reduce production cost.
In the present embodiment, described step D is for spool with the first anode ear 11 and the first negative electrode lug 21, can by electrode slice winding 180 degree obtained for step C, respectively in positive plate 1 clear area 4 corresponding first anode ear 11 position and in negative plate 2 clear area 4 position mark of corresponding first negative electrode lug 21, then by the electrode slice revolution certain angle after winding, the second anode ear 12 and the second negative electrode lug 22 is welded respectively according to the position of described mark.By mark, improve the positional precision of tab welding, ensure that the rear all anode ears 10 of winding align and all negative electrode lugs 20 align, further increase battery with two side terminals; Core revolution certain angle welds again, improves welding convenience, reduces production cost.
In the present embodiment, in described step B, described first anode ear 11 and the first negative electrode lug 21 are welded on obtained positive plate 1 one end of steps A and negative plate 2 one end respectively.Be convenient to, using the first anode ear 11 and the first negative electrode lug 21 as spool, improve winding speed, improve working (machining) efficiency, reduce production cost.
In the present embodiment, by core winding certain angle obtained for step D, position welding the 3rd anode ear 13 of corresponding second anode ear 12 in positive plate 1 clear area 4; Position welding the 3rd negative electrode lug 23 of corresponding second negative electrode lug 22 in negative plate 2 clear area 4; First anode ear 11, second anode ear 12 and the 3rd anode ear 13 are separately positioned on the stem of positive plate 1, middle part and afterbody; First negative electrode lug 21, second negative electrode lug 22 and the 3rd negative electrode lug 23 are separately positioned on the stem of negative plate 2, middle part and afterbody.Lug is set at the stem of electrode slice, middle part and afterbody, is conducive to the movement of electric charge, be convenient to reduce cell resistance, reduce battery charging and discharging temperature rise.Preferred further, described second anode ear 12 and the first anode ear 11 are welded on the same side of positive plate 1; Described second negative electrode lug 22 and the first negative electrode lug 21 are welded on the same side of negative plate 2.
In the present embodiment, repeating said steps E and F welds some anode ears 10 and some negative electrode lugs 20 respectively at positive plate 1 and negative plate 2 successively, and the direction of each winding is identical with coiling direction last time.Concrete, after completing the second anode ear 12 and the welding of the second negative electrode lug 22, core rotates forward 180 degree, the position of mark the 3rd anode ear 13 and the 3rd negative electrode lug 23, core revolution certain angle, be convenient to welding, then the 3rd anode ear 13 and the 3rd negative electrode lug 23 are welded according to the position of mark, after welding, core goes back to, 3rd anode ear 13 and the 3rd negative electrode lug 23 are close to the second anode ear 12 and the second negative electrode lug 22 respectively, complete a welding cycle; Repeat above-mentioned welding cycle, continue the more lug of welding.Preferred further, after each soldering polar ear, all on lug, paste insulation gummed paper.
Preferably, also comprise soldering polar ear exit operation: after all lugs are welded in electrode slice, first the battery core be rolled into can be wrapped, then all anode ear exits 14 stacked are welded in together, make all anode ear electrical connections stacked, the all negative electrode lug exits stacked are welded in together, make all negative electrode lug electrical connections stacked; Convenient by anode ear and negative electrode lug extraction, be convenient to battery core to be assembled into battery.
It is the citing of the battery core obtained according to the manufacturing process of above-mentioned a kind of multi pole ears battery core disclosed in Fig. 5, a kind of multi pole ears battery of the present invention, comprise the battery core that in the manufacturing process of above-mentioned a kind of multi pole ears battery core, any one technique is obtained, all anode ears 10 align and all negative electrode lugs 20 align, electrode slice can arrange comparatively multi pole ears, lug and electrode slice, by being welded to connect, are convenient to improve the power of battery and capacity; The electrode slice being avoided multi pole ears by welding procedure analyses the phenomenon of lithium in lug district, avoid the problems such as burr that cross cutting lug causes is large; Improve battery with two side terminals, be convenient to automated production, reduce production cost.Known the present invention has above-described good characteristic in sum, is made it in use, promotes in conventional art the usefulness that do not have and has practicality, becoming the product that has practical value.
Above content is only preferred embodiment of the present invention, and for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (10)
1. a manufacturing process for multi pole ears battery core, is characterized in that, comprises the steps:
A. coat activated slurry: that is interrupted by active slurry is coated on positive plate (1) and negative plate (2), makes positive plate (1) and negative plate (2) that applying area (3) and clear area (4) are arranged in order;
B. first pair pole ear is welded: the clear area (4) the first anode ear (11) and the first negative electrode lug (21) being welded on respectively the obtained positive plate (1) of steps A and negative plate (2);
C. superpose positive plate (1) and negative plate (2): by electrode slice superposition obtained for step B, described first anode ear (11) and the first negative electrode lug (21) dislocation are arranged;
D. core is wound into: electrode slice winding certain angle obtained for step C is formed core, and the first anode ear (11) or the first negative electrode lug (21) are wrapped in this core;
E. lower a pair lug is welded: the second anode ear (12) is welded in the position of corresponding first anode ear (11) in positive plate (1) clear area (4); In negative plate (2) clear area (4), the second negative electrode lug (22) is welded in the position of corresponding first negative electrode lug (21);
F. lug is adjacent to: the core formed with step D continues winding for spool, and the lug that step e is welded is close to core.
2. the manufacturing process of a kind of multi pole ears battery core according to claim 1, is characterized in that: described step D is for spool reels with the first anode ear (11) and the first negative electrode lug (21); Described step e first respectively the position of corresponding first anode ear in positive plate (1) clear area (4) (11) and in negative plate (2) clear area (4) position mark of corresponding first negative electrode lug (21), then by the electrode slice revolution certain angle after winding, the second anode ear (12) and the second negative electrode lug (22) is welded respectively according to the position of described mark.
3. the manufacturing process of a kind of multi pole ears battery core according to claim 1, it is characterized in that: in described step B, described first anode ear (11) and the first negative electrode lug (21) are welded on obtained positive plate (1) one end of steps A and negative plate (2) one end respectively.
4. the manufacturing process of a kind of multi pole ears battery core according to claim 1, it is characterized in that: by core winding certain angle obtained for step D, at the position of corresponding second anode ear (12) in the clear area (4) of positive plate (1) welding the 3rd anode ear (13); At the position of corresponding second negative electrode lug (22) in the clear area (4) of negative plate (2) welding the 3rd negative electrode lug (23).
5. the manufacturing process of a kind of multi pole ears battery core according to claim 4, is characterized in that: described first anode ear (11), the second anode ear (12) and the 3rd anode ear (13) are separately positioned on the stem of positive plate (1), middle part and afterbody; First negative electrode lug (21), the second negative electrode lug (22) and the 3rd negative electrode lug (23) are separately positioned on the stem of negative plate (2), middle part and afterbody.
6. the manufacturing process of a kind of multi pole ears battery core according to claim 1, is characterized in that: the same side described second anode ear (12) and the first anode ear (11) being welded on positive plate (1); Described second negative electrode lug (22) and the first negative electrode lug (21) are welded on the same side of negative plate (2).
7. the manufacturing process of a kind of multi pole ears battery core according to claim 1, it is characterized in that: repeating said steps E and F welds some anode ears and some negative electrode lugs respectively at positive plate (1) and negative plate (2) successively, and the direction of each winding is identical with coiling direction last time.
8. the manufacturing process of a kind of multi pole ears battery core according to claim 1, is characterized in that: after each soldering polar ear, all on lug, pastes insulation gummed paper.
9. the manufacturing process of a kind of multi pole ears battery core according to claim 1, is characterized in that: in step F, continues winding several 180 degree after the lug that step e is welded being close to core.
10. a multi pole ears battery, is characterized in that: comprise the battery core that the manufacturing process of a kind of multi pole ears battery core according to any one of claim 1 ~ 9 is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510691844.XA CN105161673B (en) | 2015-10-23 | 2015-10-23 | The manufacturing process and multi pole ears battery of a kind of multi pole ears battery core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510691844.XA CN105161673B (en) | 2015-10-23 | 2015-10-23 | The manufacturing process and multi pole ears battery of a kind of multi pole ears battery core |
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| Publication Number | Publication Date |
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| CN105161673A true CN105161673A (en) | 2015-12-16 |
| CN105161673B CN105161673B (en) | 2018-05-01 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768711A (en) * | 2017-08-31 | 2018-03-06 | 吉安力莱新能源科技有限公司 | A kind of convoluted polymer battery of multi pole ears and its method for winding |
| CN107834014A (en) * | 2017-09-18 | 2018-03-23 | 东莞市迈科新能源有限公司 | A kind of high power cylindrical lithium ion cell core |
| CN109148823A (en) * | 2018-08-23 | 2019-01-04 | 宁波瞬能科技有限公司 | One kind is ultrafast to fill lithium ion battery electrode and its preparation method and application |
| CN110061181A (en) * | 2019-04-22 | 2019-07-26 | 佛山市实达科技有限公司 | A kind of battery and its electrode film, core |
| CN110071252A (en) * | 2019-04-22 | 2019-07-30 | 佛山市实达科技有限公司 | A kind of battery and its negative electrode plate, core |
| CN110364768A (en) * | 2019-06-11 | 2019-10-22 | 温州大学新材料与产业技术研究院 | A kind of multi-winding-core battery production method |
| CN113381132A (en) * | 2021-06-03 | 2021-09-10 | 珠海冠宇电池股份有限公司 | Multi-tab battery core and battery |
| WO2021227896A1 (en) * | 2020-05-11 | 2021-11-18 | 珠海冠宇电池股份有限公司 | Battery and electronic device |
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| CN202050030U (en) * | 2011-05-20 | 2011-11-23 | 无锡市明杨电池有限公司 | Lithium ion battery with high-multiplying-power discharge performance |
| JP2013543228A (en) * | 2010-12-20 | 2013-11-28 | エルジー・ケム・リミテッド | Lithium secondary battery having multidirectional lead-tab structure |
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| JP2013543228A (en) * | 2010-12-20 | 2013-11-28 | エルジー・ケム・リミテッド | Lithium secondary battery having multidirectional lead-tab structure |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768711A (en) * | 2017-08-31 | 2018-03-06 | 吉安力莱新能源科技有限公司 | A kind of convoluted polymer battery of multi pole ears and its method for winding |
| CN107834014A (en) * | 2017-09-18 | 2018-03-23 | 东莞市迈科新能源有限公司 | A kind of high power cylindrical lithium ion cell core |
| CN107834014B (en) * | 2017-09-18 | 2021-01-15 | 东莞市迈科新能源有限公司 | High-power cylindrical lithium ion battery cell |
| CN109148823A (en) * | 2018-08-23 | 2019-01-04 | 宁波瞬能科技有限公司 | One kind is ultrafast to fill lithium ion battery electrode and its preparation method and application |
| CN109148823B (en) * | 2018-08-23 | 2019-07-26 | 宁波瞬能科技有限公司 | One kind is ultrafast to fill lithium ion battery electrode and its preparation method and application |
| CN110061181A (en) * | 2019-04-22 | 2019-07-26 | 佛山市实达科技有限公司 | A kind of battery and its electrode film, core |
| CN110071252A (en) * | 2019-04-22 | 2019-07-30 | 佛山市实达科技有限公司 | A kind of battery and its negative electrode plate, core |
| CN110364768A (en) * | 2019-06-11 | 2019-10-22 | 温州大学新材料与产业技术研究院 | A kind of multi-winding-core battery production method |
| CN110364768B (en) * | 2019-06-11 | 2021-05-21 | 温州大学新材料与产业技术研究院 | Method for manufacturing multi-winding-core battery |
| WO2021227896A1 (en) * | 2020-05-11 | 2021-11-18 | 珠海冠宇电池股份有限公司 | Battery and electronic device |
| CN113381132A (en) * | 2021-06-03 | 2021-09-10 | 珠海冠宇电池股份有限公司 | Multi-tab battery core and battery |
| CN113381132B (en) * | 2021-06-03 | 2023-03-14 | 珠海冠宇电池股份有限公司 | Multi-tab battery cell and battery |
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| Publication number | Publication date |
|---|---|
| CN105161673B (en) | 2018-05-01 |
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Effective date of registration: 20190125 Address after: 365000 Mingxi Economic Development Zone A, Sanming City, Fujian Province Patentee after: Fujian Zhige New Energy Battery Technology Co., Ltd. Address before: 523000 Dongguan Zhige Battery Technology Co., Ltd. Sanzhong Road, Qingxi Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN GENERAL EXPLORING BATTERY TECHNOLOGY CO., LTD. |