CN101783420A - Method for manufacturing lithium ion battery lamination - Google Patents
Method for manufacturing lithium ion battery lamination Download PDFInfo
- Publication number
- CN101783420A CN101783420A CN200910106778A CN200910106778A CN101783420A CN 101783420 A CN101783420 A CN 101783420A CN 200910106778 A CN200910106778 A CN 200910106778A CN 200910106778 A CN200910106778 A CN 200910106778A CN 101783420 A CN101783420 A CN 101783420A
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- Prior art keywords
- pole piece
- barrier film
- membrane
- pole pieces
- positive
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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 invention discloses a method for manufacturing a lithium ion battery lamination, which comprises the following steps: manufacturing independent sheet positive and negative pole pieces and a membrane coil according to the design requirement; arranging pole pieces with the same polarity on a first layer of membrane at intervals, covering a second layer of membrane above the first layer of membrane, and encapsulating the pole pieces with the same polarity in the two membranes by hot pressing to form a pole piece membrane strip bag on which the pole pieces with the same polarity are distributed uniformly and continuously at intervals; and folding the pole piece membrane strip bag in a Z shape, and placing the pole pieces with the other polarity between two adjacent folded units of the pole piece membrane strip bag to form membrane-separated laminate with alternated positive and negative pole pieces. The method radically solves the technical problem of short circuit because the traditional coiled membrane lamination easily causes misalignment of the pole pieces, the two pole pieces are mutually contacted, the burrs at the edges of the pole pieces pierce the membrane and the like, and can further improve the production mechanization level of the battery and the standardization level of the lamination so as to fulfill the purpose of improving the production efficiency and the quality of the battery.
Description
Technical field
The present invention relates to the manufacturing technology of lithium ion battery, relate in particular to a kind of manufacture method of lithium ion battery lamination.
Background technology
At present, the electric core manufacturing technology of general lithium ion battery has following two kinds: takeup type and stacked.
Takeup type---after earlier positive plate, barrier film, negative plate and barrier film being stacked gradually, place on the up-coiler, secondly barrier film and positive plate are wound on the winding needle, be involved in half-turn earlier, the negative plate of reeling together again.Positive/negative plate all must not exceed the width of barrier film in the winding process, and the positive/negative plate width should align, and must not misplace.The shortcoming of the method is: it generally is applied to the battery of low capacity.For jumbo battery, because of there is safety problem in it and is unfavorable for heavy-current discharge, so inapplicable.In order to improve the defective that coiled battery is made, the present stacked dual mode that is manufactured with that adopts:
1, makes sheet positive and negative plate and continuous web-like barrier film separately.It is capable folding that barrier film is carried out " Z " word, alternately puts into positive and negative plate simultaneously between two-layer barrier film.Form stacking that the positive and negative plate separate with barrier film replaces like this;
2, make the sheet positive and negative plate separately, then positive and negative plate is encapsulated into respectively in the diaphragm bag, form one by one independently pole piece unit with the barrier film overcoat.With equipment or manually the pole piece units alternately that is surrounded by positive and negative plate is respectively stacked, formation stacks then.
First kind of lamination mode efficient height, technology is comparatively simple, but because of barrier film is thinner, and insufficient strength, easily by the burr at pole piece edge puncture, pole piece easily reason such as dislocation cause micro-short circuit or short circuit, rate of finished products is not high.
Second kind of lamination mode encapsulated by diaphragm bag because of pole piece, and there is the lap of certain width at the diaphragm bag edge, and the burr of pole piece can't puncture the diaphragm bag edge and contact with other pole piece, improves a lot on reliability.But this mode need be made the positive and negative plate diaphragm bag when lamination, efficient is low, and the dislocation of sliding takes place easily in the pole piece unit of diaphragm bag encapsulation simultaneously.
Summary of the invention
The present invention provides a kind of manufacture method of avoiding battery positive/negative plate easily to contact the lithium ion battery lamination that causes short circuit, dislocation in order to overcome the shortcoming of above-mentioned battery lamination manufacture method.
The manufacture method of the lithium ion battery lamination that the present invention proposes, it comprises the steps:
According to designing requirement, make independent sheet positive and negative pole pieces and membrane coil;
Pole piece with same polarity is spaced on the ground floor barrier film earlier, again second layer barrier film is covered on it over against the ground floor barrier film, be packaged in two barrier films by the pole piece of hot pressing, form the pole piece evenly distribution at interval of same polarity, continuous pole piece diaphragm strip bag described same polarity;
It is capable folding that described pole piece diaphragm strip bag is carried out " Z " word, and the pole piece with another polarity places between the pole piece diaphragm strip bag two adjacent folding unit simultaneously, forms the stacked heap that the positive and negative plate that separates with barrier film replaces.
Second step of the present invention can be packaged in positive plate among ground floor barrier film and the second layer barrier film earlier in making.Also can negative plate be packaged among ground floor barrier film and the second layer barrier film earlier.
The present invention is packaged in the pole piece of same polarity in the two-layer barrier film earlier, and positive and negative plate is contact directly, has fundamentally solved the short circuit problem that causes because of the positive/negative plate contact, has improved battery quality.The diaphragm edge of pole piece encapsulation has certain hot pressing thickness, and the pole piece burr can't pierce through, and has fundamentally solved micro-short circuit or short circuit problem that Yin Maoci causes.The present invention only needs a kind of pole piece of polarity is packaged in the membrane layer, and the folding mode with respect to existing diaphragm bag has reduced material cost and complex process degree; The present invention has fundamentally solved the technical problem that traditional coiled barrier film lamination exists, and can further improve battery production mechanization and lamination standardization, enhances productivity and the purpose of battery quality thereby reach.
Description of drawings
Below in conjunction with drawings and Examples the present invention is done detailed explanation, wherein:
Fig. 1 and Fig. 2 are respectively the schematic diagram of independent sheet positive and negative pole pieces;
Fig. 3 is that same pole piece is packaged in the schematic diagram between the two-layer barrier film;
Fig. 4 carries out the capable folding schematic diagram in heaps of " Z " word for pole piece diaphragm strip bag.
Embodiment
The lamination manufacture craft of selecting lithium iron phosphate dynamic battery electricity core for use comes the present invention is done detailed explanation for embodiment.The processing step of present embodiment is as follows:
The making of A, pole piece and barrier film, as depicted in figs. 1 and 2:
According to designing requirement, make independent sheet positive and negative pole pieces earlier.Positive plate 1 is made of plus plate current-collecting body and the positive electrode active materials coat that contains that is evenly coated in its two sides; Negative plate 2 is made of negative current collector and the negative active core-shell material coat that contains that is evenly coated in its two sides.The coat that contains active material anodal and negative pole is continuous coat, and leaves blank in lug 4 parts of stretching out.
Make the diaphragm strip of membrane coil or certain-length as required.
The making of B, pole piece diaphragm strip bag, as shown in Figure 3:
Launch the ground floor barrier film earlier, and the positive plate of making 1 is spaced on ground floor barrier film 3, again second layer barrier film 3 is covered on it over against the ground floor barrier film.By hot pressing positive plate 1 is packaged in two barrier films, forms that positive plate evenly distributes at interval, continuous pole piece diaphragm strip bag 5.Ready-made pole piece diaphragm strip bag does not need cutting.
C, pole piece stack, as shown in Figure 4:
It is capable folding that pole piece diaphragm strip bag 5 is carried out " Z " word, simultaneously negative plate 2 placed between 5 liang of adjacent folding unit of pole piece diaphragm strip bag, forms the stacked heap that the positive and negative plate that separates with barrier film replaces.
When the present invention carries out the making of second step, also can earlier negative plate 2 be packaged among ground floor barrier film and the second layer barrier film, form diaphragm strip bag 5.It is capable when folding to carry out " Z " word at the diaphragm strip bag then, and positive plate 1 is placed between 5 liang of adjacent folding unit of pole piece diaphragm strip bag, forms the stacked heap that the positive and negative plate that separates with barrier film replaces.
The present invention has fundamentally solved the technical problem of the short circuit that traditional coiled barrier film lamination causes easily that pole piece dislocation, two pole pieces are in contact with one another, the pole piece burrs on edges pierces through barrier film etc. and cause, can further improve battery production mechanization and lamination standardization, enhance productivity and the purpose of battery quality thereby reach.
Claims (3)
1. the manufacture method of a lithium ion battery lamination is characterized in that comprising the steps:
According to designing requirement, make independent sheet positive and negative pole pieces and membrane coil;
Pole piece with same polarity is spaced on the ground floor barrier film earlier, again second layer barrier film is covered on it over against the ground floor barrier film, be packaged in two barrier films by the pole piece of hot pressing, form the pole piece evenly distribution at interval of same polarity, continuous pole piece diaphragm strip bag described same polarity;
It is capable folding that described pole piece diaphragm strip bag is carried out " Z " word, and the pole piece with another polarity places between the pole piece diaphragm strip bag two adjacent folding unit simultaneously, forms the stacked heap that the positive and negative plate that separates with barrier film replaces.
2. the manufacture method of lithium ion battery lamination as claimed in claim 1 is characterized in that, earlier positive plate is packaged among ground floor barrier film and the second layer barrier film.
3. the manufacture method of lithium ion battery lamination as claimed in claim 1 is characterized in that, earlier negative plate is packaged among ground floor barrier film and the second layer barrier film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910106778A CN101783420A (en) | 2009-05-05 | 2009-05-05 | Method for manufacturing lithium ion battery lamination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910106778A CN101783420A (en) | 2009-05-05 | 2009-05-05 | Method for manufacturing lithium ion battery lamination |
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| CN101783420A true CN101783420A (en) | 2010-07-21 |
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| CN200910106778A Pending CN101783420A (en) | 2009-05-05 | 2009-05-05 | Method for manufacturing lithium ion battery lamination |
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Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958430A (en) * | 2010-10-11 | 2011-01-26 | 李文漫 | Lithium ion battery core with continuous lamination and lithium ion battery |
| CN102544452A (en) * | 2012-03-02 | 2012-07-04 | 陈振富 | Maintenance-free lead acid battery electrode group and I-shaped chip-packaging process |
| CN102569901A (en) * | 2011-12-27 | 2012-07-11 | 华为技术有限公司 | lithium ion battery, lithium ion battery core and manufacturing method of lithium ion battery core |
| CN102683752A (en) * | 2012-04-09 | 2012-09-19 | 南京久兆新能源科技有限公司 | Stacked lithium ion power battery and manufacturing method thereof |
| CN103682460A (en) * | 2013-12-19 | 2014-03-26 | 深圳市吉阳自动化科技有限公司 | Stacking machine and stacking method thereof |
| CN104051792A (en) * | 2014-07-03 | 2014-09-17 | 宁德新能源科技有限公司 | Preparation method of non-rectangular lamination battery cell |
| CN104900905A (en) * | 2015-06-03 | 2015-09-09 | 深圳市迪凯特电池科技有限公司 | Laminated lithium ion battery and production process thereof |
| CN106099132A (en) * | 2016-08-30 | 2016-11-09 | 惠州市惠德瑞锂电科技股份有限公司 | A kind of lithium battery core body and the lithium primary battery of gained |
| CN106252732A (en) * | 2016-08-17 | 2016-12-21 | 吉安市优特利科技有限公司 | The manufacture method of lithium-ion-power cell |
| CN108023118A (en) * | 2017-02-22 | 2018-05-11 | 深圳市格瑞普电池有限公司 | Laminated lithium ion battery and preparation method thereof |
| WO2018205414A1 (en) * | 2017-05-12 | 2018-11-15 | 深圳市格林晟科技有限公司 | Composite lamination method |
| CN108878988A (en) * | 2018-06-29 | 2018-11-23 | 深圳吉阳智能科技有限公司 | A kind of lamination band, lamination band making apparatus and laminating equipment |
| CN109193033A (en) * | 2018-08-20 | 2019-01-11 | 湖南格瑞普新能源有限公司 | Soft bag lithium ionic cell |
| CN109546230A (en) * | 2017-12-29 | 2019-03-29 | 蜂巢能源科技有限公司 | The manufacturing method and electrode tinkertoy module of electrode tinkertoy module |
| WO2019129223A1 (en) * | 2017-12-29 | 2019-07-04 | 长城汽车股份有限公司 | Manufacturing method for electrode stacked assembly, and electrode stacked assembly |
| CN110048078A (en) * | 2019-05-23 | 2019-07-23 | 四川福来威新能源科技有限公司 | Electrod assembly, electrode assembly, battery core, the preparation method of battery and electrod assembly |
| CN110071331A (en) * | 2019-04-25 | 2019-07-30 | 四川福来威新能源科技有限公司 | A kind of lithium battery and preparation method thereof |
| CN110970680A (en) * | 2018-09-28 | 2020-04-07 | 有量科技股份有限公司 | Method for disassembling battery core |
| CN112151880A (en) * | 2020-10-13 | 2020-12-29 | 苏州金丝港智能发展股份有限公司 | Lithium battery cell lamination device and use method thereof |
| CN112186234A (en) * | 2020-10-13 | 2021-01-05 | 苏州金丝港智能发展股份有限公司 | Battery cell lamination equipment of combined battery plate and lamination method thereof |
| CN112186265A (en) * | 2020-10-13 | 2021-01-05 | 苏州金丝港智能发展股份有限公司 | Special-shaped lithium battery lamination machine and lamination process thereof |
| CN113299969A (en) * | 2021-05-24 | 2021-08-24 | 深圳吉阳智能科技有限公司 | Method and device for positioning unit piece and laminating machine |
| CN113571756A (en) * | 2021-07-26 | 2021-10-29 | 珠海冠宇电池股份有限公司 | Battery cell manufacturing method and battery cell |
| CN113851606A (en) * | 2021-09-03 | 2021-12-28 | 无锡奥特维智能装备有限公司 | Negative plate and battery cell laminating equipment and method |
| CN116259853A (en) * | 2023-05-11 | 2023-06-13 | 中创新航科技集团股份有限公司 | Battery cell |
-
2009
- 2009-05-05 CN CN200910106778A patent/CN101783420A/en active Pending
Cited By (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958430A (en) * | 2010-10-11 | 2011-01-26 | 李文漫 | Lithium ion battery core with continuous lamination and lithium ion battery |
| CN102569901B (en) * | 2011-12-27 | 2016-01-13 | 华为技术有限公司 | A kind of lithium ion battery, core of lithium ion cell and preparation method thereof |
| CN102569901A (en) * | 2011-12-27 | 2012-07-11 | 华为技术有限公司 | lithium ion battery, lithium ion battery core and manufacturing method of lithium ion battery core |
| WO2013097510A1 (en) * | 2011-12-27 | 2013-07-04 | 华为技术有限公司 | Lithium ion battery, lithium ion battery cell and manufacturing method thereof |
| CN102544452A (en) * | 2012-03-02 | 2012-07-04 | 陈振富 | Maintenance-free lead acid battery electrode group and I-shaped chip-packaging process |
| CN102683752A (en) * | 2012-04-09 | 2012-09-19 | 南京久兆新能源科技有限公司 | Stacked lithium ion power battery and manufacturing method thereof |
| CN103682460A (en) * | 2013-12-19 | 2014-03-26 | 深圳市吉阳自动化科技有限公司 | Stacking machine and stacking method thereof |
| CN104051792A (en) * | 2014-07-03 | 2014-09-17 | 宁德新能源科技有限公司 | Preparation method of non-rectangular lamination battery cell |
| CN104051792B (en) * | 2014-07-03 | 2016-03-09 | 宁德新能源科技有限公司 | The preparation method of non-rectangle laminated cell |
| CN104900905A (en) * | 2015-06-03 | 2015-09-09 | 深圳市迪凯特电池科技有限公司 | Laminated lithium ion battery and production process thereof |
| CN106252732A (en) * | 2016-08-17 | 2016-12-21 | 吉安市优特利科技有限公司 | The manufacture method of lithium-ion-power cell |
| CN106099132A (en) * | 2016-08-30 | 2016-11-09 | 惠州市惠德瑞锂电科技股份有限公司 | A kind of lithium battery core body and the lithium primary battery of gained |
| CN108023118A (en) * | 2017-02-22 | 2018-05-11 | 深圳市格瑞普电池有限公司 | Laminated lithium ion battery and preparation method thereof |
| CN108232088A (en) * | 2017-02-22 | 2018-06-29 | 深圳市格瑞普电池有限公司 | Diaphragm bag band suitable for lamination lithium ion and preparation method thereof |
| WO2018205414A1 (en) * | 2017-05-12 | 2018-11-15 | 深圳市格林晟科技有限公司 | Composite lamination method |
| WO2019129223A1 (en) * | 2017-12-29 | 2019-07-04 | 长城汽车股份有限公司 | Manufacturing method for electrode stacked assembly, and electrode stacked assembly |
| CN109546230A (en) * | 2017-12-29 | 2019-03-29 | 蜂巢能源科技有限公司 | The manufacturing method and electrode tinkertoy module of electrode tinkertoy module |
| CN109546230B (en) * | 2017-12-29 | 2022-03-29 | 蜂巢能源科技股份有限公司 | Method for manufacturing electrode laminated assembly and electrode laminated assembly |
| CN108878988A (en) * | 2018-06-29 | 2018-11-23 | 深圳吉阳智能科技有限公司 | A kind of lamination band, lamination band making apparatus and laminating equipment |
| CN108878988B (en) * | 2018-06-29 | 2024-04-09 | 深圳吉阳智能科技有限公司 | Lamination area, lamination area preparation equipment and lamination equipment |
| CN109193033A (en) * | 2018-08-20 | 2019-01-11 | 湖南格瑞普新能源有限公司 | Soft bag lithium ionic cell |
| CN109193033B (en) * | 2018-08-20 | 2024-03-26 | 湖南格瑞普新能源有限公司 | Soft package lithium ion battery |
| CN110970680A (en) * | 2018-09-28 | 2020-04-07 | 有量科技股份有限公司 | Method for disassembling battery core |
| CN110071331A (en) * | 2019-04-25 | 2019-07-30 | 四川福来威新能源科技有限公司 | A kind of lithium battery and preparation method thereof |
| CN110048078A (en) * | 2019-05-23 | 2019-07-23 | 四川福来威新能源科技有限公司 | Electrod assembly, electrode assembly, battery core, the preparation method of battery and electrod assembly |
| CN110048078B (en) * | 2019-05-23 | 2024-03-08 | 四川福来威新能源科技有限公司 | Electrode component, electrode assembly, battery cell, battery and preparation method of electrode component |
| CN112186265A (en) * | 2020-10-13 | 2021-01-05 | 苏州金丝港智能发展股份有限公司 | Special-shaped lithium battery lamination machine and lamination process thereof |
| CN112151880B (en) * | 2020-10-13 | 2022-03-29 | 山东德晋新能源科技有限公司 | Lithium battery cell lamination device and use method thereof |
| CN112186234A (en) * | 2020-10-13 | 2021-01-05 | 苏州金丝港智能发展股份有限公司 | Battery cell lamination equipment of combined battery plate and lamination method thereof |
| CN112186234B (en) * | 2020-10-13 | 2022-07-15 | 东莞市茂盛新能源科技有限公司 | Battery cell lamination equipment of combined battery plate and lamination method thereof |
| CN112151880A (en) * | 2020-10-13 | 2020-12-29 | 苏州金丝港智能发展股份有限公司 | Lithium battery cell lamination device and use method thereof |
| CN113299969A (en) * | 2021-05-24 | 2021-08-24 | 深圳吉阳智能科技有限公司 | Method and device for positioning unit piece and laminating machine |
| US11872795B2 (en) | 2021-05-24 | 2024-01-16 | Shenzhen Geesun Intelligent Technology Co., Ltd. | Unit plate position fixation method and device and lamination machine |
| CN113571756A (en) * | 2021-07-26 | 2021-10-29 | 珠海冠宇电池股份有限公司 | Battery cell manufacturing method and battery cell |
| CN113851606A (en) * | 2021-09-03 | 2021-12-28 | 无锡奥特维智能装备有限公司 | Negative plate and battery cell laminating equipment and method |
| CN116259853A (en) * | 2023-05-11 | 2023-06-13 | 中创新航科技集团股份有限公司 | Battery cell |
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Application publication date: 20100721 |