CN103825053A - Manufacturing process of high-performance flexible package lithium ion battery cell - Google Patents
Manufacturing process of high-performance flexible package lithium ion battery cell Download PDFInfo
- Publication number
- CN103825053A CN103825053A CN201410096265.6A CN201410096265A CN103825053A CN 103825053 A CN103825053 A CN 103825053A CN 201410096265 A CN201410096265 A CN 201410096265A CN 103825053 A CN103825053 A CN 103825053A
- Authority
- CN
- China
- Prior art keywords
- foil current
- aluminum foil
- current collector
- copper foil
- lug
- 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.)
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Classifications
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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
- H01M2200/00—Safety devices for primary or secondary 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
- 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
A manufacturing process of a high-performance flexible package lithium ion battery cell comprises the following steps: coating the positive electrode slurry on an aluminum foil current collector, coating the negative electrode slurry on a copper foil current collector, and then preparing a positive plate and a negative plate; b, stacking the positive plate and the negative plate, and separating the positive plate and the negative plate by using a diaphragm; c, taking 4 aluminum foil current collectors and 2 copper foil current collectors, stacking the aluminum foil current collectors, the copper foil current collectors and the aluminum foil current collectors in sequence, and separating the aluminum foil current collectors and the copper foil current collectors by using diaphragms; d, the pole ear made in step C is stacked on the electric core, the pole ear of the aluminum foil current collector aligns the positive plate, the pole ear of the copper foil current collector aligns the negative plate, then the positive plate and the pole ear, the negative plate and the pole ear are welded together by an ultrasonic welding machine to form the positive pole and the negative pole.
Description
Technical field
The invention belongs to lithium ion battery and manufacture field, be specifically related to a kind of manufacture craft of high-performance flexible packing lithium ion electric core.
Background technology
It is high that lithium ion battery has energy density, have extended cycle life, self discharge is little, memory-less effect and the advantage such as pollution-free, be widely used in each electronic product, it is worth noting that especially power lithium-ion battery was sent to great expectations in the application in electric automobile field in recent years, but, current lithium ion battery is produced conventional diaphragm closed pore temperature and is about 150 ℃ of left and right, broken film temperature is 170 ℃ of left and right, if there is internal short-circuit in lithium battery under fortuitous event, internal temperature of battery will raise rapidly, even barrier film closed prevention ion conducting voluntarily 150 ℃ time, but due to thermal inertia and hysteresis quality, temperature can continue to rise, also may meet or exceed 170 ℃, at this moment reached the melt fracture temperature of barrier film, form large area short circuit, out of control, under extreme case there is the even phenomenon of blast of burning in battery, the fail safe of lithium ion battery is the Main Bottleneck that restricts at present its application extension, the reason that causes lithium ion battery security to produce hidden danger is exactly that lithium ion battery is larger at the mad lower electric current of abnormal condition or heat, cause potential safety hazard, therefore be necessary the thermal control of lithium ion battery to process, the fail safe of guarantee lithium ion battery.
Summary of the invention
Object of the present invention sets about from thermal control, a kind of battery core that can effectively control electric current or heat under battery abnormal condition is provided, by the improvement in battery battery core design, make it be unlikely to occur thermal runaway, fundamentally solve the safety issue of battery self, improved the security performance of lithium ion battery.
For achieving the above object, the present invention is by the following technical solutions: a kind of manufacture craft of high-performance flexible packing lithium ion electric core, comprises the following steps:
A makes positive plate and negative plate: use conventional anode sizing agent and cathode size manufacture method to make anode sizing agent and cathode size, and anode sizing agent is coated in aluminum foil current collector, cathode size is coated on Copper Foil collector, then makes positive plate and negative plate through techniques such as roll-in, film-making, punchings;
B makes battery core: positive plate and negative plate are interted and stack neatly, use barrier film to separate, the barrier film of the reserved certain length in positive/negative plate both sides between positive plate and negative plate;
C makes lug: get 4 aluminum foil current collector, 2 Copper Foil collectors, and a side of aluminum foil current collector, Copper Foil collector is cut into lug shape; Then according to aluminum foil current collector, Copper Foil collector, aluminum foil current collector stack order lamination, between aluminum foil current collector and Copper Foil collector, separate with barrier film;
The lug that D makes step C overlays in battery core, between battery core and lug, separate with barrier film, the wherein lug of aluminum foil current collector alignment positive plate, the lug aligned negative pole piece of Copper Foil collector, then the lug of the lug of positive plate and aluminum foil current collector, negative plate and Copper Foil collector is welded together to composition positive pole and negative pole with ultrasonic bonding machine.
Further, described barrier film is the plastic film with insulation function.
Compared with prior art, the present invention is in order to change the state of the art that current lithium ion battery safety performance is low, the difficulty of and difficult heat extraction large based on inside battery heat production, in battery core, add internal resistance minimum, conduct electricity the important shunting route of good foil during as abnormal short circuit, expand or heat too high in the situation that in electric current moment, electric current carries out conducting by the outer field collector of battery core, the inner heat production of battery core is less, and the heat on the outer field collector of battery core more easily carries out heat exchange with the external world, thereby the temperature that guarantees battery core is controllable, thereby alleviate the excessive thermal runaway causing of inside battery electric current, fundamentally solve thermal control problem, thereby produce the good reliable power soft-package battery of security performance.
Embodiment
A manufacture craft for high-performance flexible packing lithium ion electric core, comprises the following steps:
A makes positive plate and negative plate: use conventional anode sizing agent and cathode size manufacture method to make anode sizing agent and cathode size, and anode sizing agent is coated in aluminum foil current collector, cathode size is coated on Copper Foil collector, then makes positive plate and negative plate through techniques such as roll-in, film-making, punchings;
B makes battery core: positive plate and negative plate are interted and stack neatly, use barrier film to separate, the barrier film of the reserved certain length in positive/negative plate both sides between positive plate and negative plate;
C makes lug: get 4 aluminum foil current collector, 2 Copper Foil collectors, and a side of aluminum foil current collector, Copper Foil collector is cut into lug shape; Then according to aluminum foil current collector, Copper Foil collector, aluminum foil current collector stack order lamination, between aluminum foil current collector and Copper Foil collector, separate with barrier film;
The lug that D makes step C overlays in battery core, between battery core and lug, separate with barrier film, the wherein lug of aluminum foil current collector alignment positive plate, the lug aligned negative pole piece of Copper Foil collector, then the lug of the lug of positive plate and aluminum foil current collector, negative plate and Copper Foil collector is welded together with ultrasonic bonding machine, composition positive pole and negative pole, described barrier film is the plastic film with insulation function.
Obviously, above-mentioned execution mode is only preferred embodiments of the present invention, and any simple modifications on this basis all belongs to protection scope of the present invention.
Claims (2)
1. a manufacture craft for high-performance flexible packing lithium ion electric core, comprises the following steps:
A makes positive plate and negative plate: use conventional anode sizing agent and cathode size manufacture method to make anode sizing agent and cathode size, and anode sizing agent is coated in aluminum foil current collector, cathode size is coated on Copper Foil collector, then makes positive plate and negative plate through techniques such as roll-in, film-making, punchings;
B makes battery core: positive plate and negative plate are interted and stack neatly, use barrier film to separate, the barrier film of the reserved certain length in positive/negative plate both sides between positive plate and negative plate;
C makes lug: get 4 aluminum foil current collector, 2 Copper Foil collectors, and a side of aluminum foil current collector, Copper Foil collector is cut into lug shape; Then according to aluminum foil current collector, Copper Foil collector, aluminum foil current collector stack order lamination, between aluminum foil current collector and Copper Foil collector, separate with barrier film;
The lug that D makes step C overlays in battery core, between battery core and lug, separate with barrier film, the wherein lug of aluminum foil current collector alignment positive plate, the lug aligned negative pole piece of Copper Foil collector, then the lug of the lug of positive plate and aluminum foil current collector, negative plate and Copper Foil collector is welded together to composition positive pole and negative pole with ultrasonic bonding machine.
2. the manufacture craft of a kind of high-performance flexible packing lithium ion electric core according to claim 1, is characterized in that described barrier film is the plastic film with insulation function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410096265.6A CN103825053B (en) | 2014-03-17 | 2014-03-17 | Manufacturing process of high-performance flexible package lithium ion battery cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410096265.6A CN103825053B (en) | 2014-03-17 | 2014-03-17 | Manufacturing process of high-performance flexible package lithium ion battery cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103825053A true CN103825053A (en) | 2014-05-28 |
| CN103825053B CN103825053B (en) | 2015-12-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410096265.6A Active CN103825053B (en) | 2014-03-17 | 2014-03-17 | Manufacturing process of high-performance flexible package lithium ion battery cell |
Country Status (1)
| Country | Link |
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| CN (1) | CN103825053B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600368A (en) * | 2014-12-29 | 2015-05-06 | 山东神工海特电子科技有限公司 | Ternary soft-package battery and preparation method thereof |
| CN111490221A (en) * | 2019-01-29 | 2020-08-04 | 三洋电机株式会社 | Secondary battery and method for manufacturing same |
| CN113764835A (en) * | 2020-05-27 | 2021-12-07 | 荣盛盟固利新能源科技有限公司 | Battery safety protection device and laminated lithium ion battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201985214U (en) * | 2010-12-21 | 2011-09-21 | 天津力神电池股份有限公司 | High-safety flexible packaging lithium ion battery |
| CN102842700A (en) * | 2012-08-14 | 2012-12-26 | 厦门太和动力电源科技有限公司 | Poly lithium battery structure with high capacity and high output ratio power |
| US20130149570A1 (en) * | 2011-12-09 | 2013-06-13 | Minyeol Han | Rechargeable secondary battery |
| CN203026604U (en) * | 2012-10-31 | 2013-06-26 | 东莞市金源电池科技有限公司 | Cell structure of soft-package lithium battery |
-
2014
- 2014-03-17 CN CN201410096265.6A patent/CN103825053B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201985214U (en) * | 2010-12-21 | 2011-09-21 | 天津力神电池股份有限公司 | High-safety flexible packaging lithium ion battery |
| US20130149570A1 (en) * | 2011-12-09 | 2013-06-13 | Minyeol Han | Rechargeable secondary battery |
| CN102842700A (en) * | 2012-08-14 | 2012-12-26 | 厦门太和动力电源科技有限公司 | Poly lithium battery structure with high capacity and high output ratio power |
| CN203026604U (en) * | 2012-10-31 | 2013-06-26 | 东莞市金源电池科技有限公司 | Cell structure of soft-package lithium battery |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600368A (en) * | 2014-12-29 | 2015-05-06 | 山东神工海特电子科技有限公司 | Ternary soft-package battery and preparation method thereof |
| CN111490221A (en) * | 2019-01-29 | 2020-08-04 | 三洋电机株式会社 | Secondary battery and method for manufacturing same |
| CN111490221B (en) * | 2019-01-29 | 2024-02-02 | 三洋电机株式会社 | Secondary battery and method for manufacturing same |
| CN113764835A (en) * | 2020-05-27 | 2021-12-07 | 荣盛盟固利新能源科技有限公司 | Battery safety protection device and laminated lithium ion battery |
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| Publication number | Publication date |
|---|---|
| CN103825053B (en) | 2015-12-09 |
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Address after: 277600 Runfeng Industrial Park, Weishan Economic Development Zone, Weishan County, Jining City, Shandong Province Patentee after: SHANDONG JAYU & REALFORCE ENTERPRISES CO.,LTD. Address before: 277600 Runfeng Industrial Park, Weishan Economic Development Zone, Weishan County, Jining City, Shandong Province Patentee before: SHANDONG REALFORCE ENTERPRISES C0., Ltd. |
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Effective date of registration: 20220506 Address after: 610000 No. 1537, middle section of Jiannan Avenue, high tech Zone, Chengdu, Sichuan Patentee after: Yu Yongbo Address before: 277600 Runfeng Industrial Park, Weishan Economic Development Zone, Weishan County, Jining City, Shandong Province Patentee before: SHANDONG JAYU & REALFORCE ENTERPRISES CO.,LTD. |
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Effective date of registration: 20230811 Address after: Room 201, Building Office, Building 1, Building B04, Kashgar Comprehensive Bonded Zone, Kashgar Economic Development Zone, Kashgar Prefecture, Xinjiang Uygur Autonomous Region, 844000 Patentee after: Kashgar Ande New Energy Technology Co.,Ltd. Address before: 610000 No. 1537, middle section of Jiannan Avenue, high tech Zone, Chengdu, Sichuan Patentee before: Yu Yongbo |