CN106025374A - Method for producing laminated battery - Google Patents
Method for producing laminated battery Download PDFInfo
- Publication number
- CN106025374A CN106025374A CN201610361064.3A CN201610361064A CN106025374A CN 106025374 A CN106025374 A CN 106025374A CN 201610361064 A CN201610361064 A CN 201610361064A CN 106025374 A CN106025374 A CN 106025374A
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- China
- Prior art keywords
- positive
- negative
- uniwafers
- barrier film
- monolithic
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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
- H01M10/0583—Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to a method for producing a laminated battery. The method comprises the following steps: taking a positive plate, a negative plate (material) and a belt-shaped diaphragm for standby use; applying a glue liquid on one side of the positive plate as well as that of the negative plate, and carrying out baking and rolling for standby use; cutting the obtained positive plate and the obtained negative plate into a plurality of standard-sized positive uniwafers and a plurality of standard-sized negative uniwafers; arranging the positive uniwafers uniformly on one side of the belt-shaped diaphragm, while arranging the negative uniwafers on the other side of the belt-shaped diaphragm in such a manner that the negative uniwafers and the positive uniwafers are opposite to each other; fixing the positive uniwafers and the negative uniwafers on two sides of the belt-shaped diaphragm according to a thermal compounding method; folding the complex of the positive uniwafers, the diaphragm and the negative uniwafers in a Z-shaped manner to form a battery roll core, and then carrying out assembling, liquid injection, formation and capacity grading to obtain the laminated battery. The method provided by the invention has the advantages that the battery production efficiency is improved; the problem that electrode uniwafers in a spirally wound laminated battery are not in close contact is solved; the safety performance of the laminated battery is improved.
Description
Technical field
The present invention relates to lithium-ion technology field, be specifically related to the manufacture method of a kind of laminated batteries.
Background technology
The advantages such as lithium ion battery has that energy density is high, has extended cycle life, self discharge is little, memory-less effect, since commercialization, of great interest with application.
At present the manufacture method of lithium ion battery mainly has takeup type and stacked two kinds.Coiled battery is that positive plate and negative plate are made continuous print sheet type, and centre is separated by barrier film, then makes battery roll core by the way of winding.There is the problem that stress is concentrated in this tradition coiled lithium ion battery, discharge and recharge the expansion of the pole piece caused and contraction long-term accumulated are likely to result in the deformation of pole piece, affect battery performance in the place that pole piece bends.
Stack type lithium ion battery mainly has Z-shaped lap wound and spooled laminations, and positive/negative plate is mainly cut into monolithic by Z-shaped lap wound respectively, and barrier film is Z-shaped lap wound, and both positive and negative polarity monolithic intersects successively and stacks, and middle is separated by barrier film.This kind of Z-shaped lap wound produces positive pole monolithic, barrier film, negative pole monolithic lap wound successively, and production efficiency is relatively low, and dislocation easily occurs in the arrangement of positive/negative plate position.Positive plate, barrier film, negative plate are stacked composition battery cell by takeup type lamination successively, battery cell bit combination on second layer barrier film again, second layer membrane coil be coiled into battery roll core.Takeup type laminated batteries winds the battery core of formation ovalize on cross section in one direction, can cause contacting between electrode monomer with electrode monomer not tight, affect the performance of battery.
Summary of the invention
It is an object of the invention to provide the manufacture method of a kind of laminated batteries, problem present in existing laminated batteries can be improved, battery production efficiency can also be effectively improved simultaneously, reduce production cost.
For achieving the above object, present invention employs techniques below scheme:
A kind of manufacture method of laminated batteries, including following sequence step:
(1) positive plate, negative plate material and banding barrier film are taken standby；
(2) positive plate and negative plate are cut into positive pole monolithic and the negative pole monolithic of multiple normal size；
(3) multiple positive pole monolithics are evenly arranged in the side of banding barrier film in interval, multiple negative pole monolithics are evenly arranged in interval the opposite side of banding barrier film, and the positive pole monolithic of banding barrier film both sides with negative pole monolithic in being oppositely arranged；
(4) positive pole monolithic and negative pole monolithic are fixed on the both sides of banding barrier film；
(5) complex of positive pole monolithic-barrier film-negative pole monolithic is folded formation battery roll core along Z-shaped, then by forming laminated batteries after assembling, fluid injection, chemical conversion, partial volume.
The spacing of described adjacent two panels positive pole monolithic is slightly larger than the width of single positive pole monolithic.
Described positive pole monolithic, negative pole monolithic are interfixed by hot complex method with barrier film.
As shown from the above technical solution, the manufacture method of laminated batteries of the present invention, by first sticking on barrier film by the spacing of design after the cutting burst of both positive and negative polarity, carry out lap wound again, higher than positive pole monolithic-barrier film-negative pole monolithic replaces Z-shaped lap wound efficiency successively, and both positive and negative polarity is high by adhering to security performance.Folded by Z-shaped simultaneously and can improve problem present in existing takeup type laminated batteries.
Accompanying drawing explanation
Fig. 1 is the structural representation of the laminated lithium ion battery of the present invention；
Fig. 2 is that the laminated lithium ion battery Z-shaped of the present invention folds schematic diagram.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings:
A kind of manufacture method of laminated batteries, including following sequence step:
S1: take positive plate, negative plate material and banding barrier film 3 standby；
S2: positive plate and negative plate are cut into positive pole monolithic 1 and the negative pole monolithic 2 of multiple normal size；
Multiple negative pole monolithics 2 are evenly arranged in the opposite side of banding barrier film 3 by S3: in interval, multiple positive pole monolithics 1 are evenly arranged in the side of banding barrier film 3 in interval, and the positive pole monolithic of banding barrier film 3 both sides with negative pole monolithic in being oppositely arranged, as shown in Figure 1.
S4: positive pole monolithic and negative pole monolithic are fixed on the both sides of banding barrier film by hot complex method；
S5: the complex being monolithically formed by positive pole monolithic-barrier film-negative pole folds along Z-shaped and forms battery roll core, as in figure 2 it is shown, again by forming laminated batteries after assembling, fluid injection, chemical conversion, partial volume,
The spacing of described adjacent two panels positive pole monolithic is slightly larger than the width of single positive pole monolithic.
The laminated batteries that the present invention is prepared from is by sticking to be initially formed positive pole-barrier film-negative pole complex on barrier film after the cutting burst of both positive and negative polarity, then carries out Z-shaped lap wound, improves the efficiency of battery production.Additionally, the present invention improves, by Z-shaped lap wound, untight problem that contacts between electrode monomer with electrode monomer in takeup type laminated batteries, improve battery performance, also improve the security performance of battery simultaneously, current battery is manufactured there is directive function.
Embodiment described above is only to be described the preferred embodiment of the present invention; not the scope of the present invention is defined; on the premise of designing spirit without departing from the present invention; various deformation that technical scheme is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that claims of the present invention determines.
Claims (3)
1. the manufacture method of a laminated batteries, it is characterised in that include following sequence step:
(1) positive plate, negative plate material and banding barrier film are taken standby；
(2) positive plate and negative plate are cut into positive pole monolithic and the negative pole monolithic of multiple normal size；
(3) multiple positive pole monolithics are evenly arranged in the side of banding barrier film in interval, multiple negative pole monolithics are evenly arranged in interval the opposite side of banding barrier film, and the positive pole monolithic of banding barrier film both sides with negative pole monolithic in being oppositely arranged；
(4) positive pole monolithic and negative pole monolithic are fixed on the both sides of banding barrier film；
(5) complex of positive pole monolithic-barrier film-negative pole monolithic is folded formation battery roll core along Z-shaped, then by forming laminated batteries after assembling, fluid injection, chemical conversion, partial volume.
The manufacture method of laminated batteries the most according to claim 1, it is characterised in that: the spacing of described adjacent two panels positive pole monolithic is slightly larger than the width of single positive pole monolithic.
The manufacture method of laminated batteries the most according to claim 1, it is characterised in that: described positive pole monolithic, negative pole monolithic are interfixed by hot complex method with barrier film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610361064.3A CN106025374A (en) | 2016-05-29 | 2016-05-29 | Method for producing laminated battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610361064.3A CN106025374A (en) | 2016-05-29 | 2016-05-29 | Method for producing laminated battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106025374A true CN106025374A (en) | 2016-10-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610361064.3A Pending CN106025374A (en) | 2016-05-29 | 2016-05-29 | Method for producing laminated battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN106025374A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482163A (en) * | 2017-07-11 | 2017-12-15 | 多氟多（焦作）新能源科技有限公司 | The manufacture method and battery cell of a kind of electrode assemblie unit, electrode assemblie |
| CN108832191A (en) * | 2018-06-26 | 2018-11-16 | 常州金中源智能装备有限公司 | A kind of method of the encapsulated fixation of core of lithium ion 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 |
| CN109560322A (en) * | 2017-12-29 | 2019-04-02 | 蜂巢能源科技有限公司 | The manufacturing method and electrode tinkertoy module of electrode tinkertoy module |
| CN110071321A (en) * | 2018-01-22 | 2019-07-30 | 大众汽车有限公司 | Manufacture is used for the method for the electrode stack of energy accumulator, stack equipment |
| CN110289450A (en) * | 2019-04-29 | 2019-09-27 | 深圳市赢合科技股份有限公司 | A kind of lamination process of novel battery pole piece |
| CN110571472A (en) * | 2019-08-21 | 2019-12-13 | 温州大学新材料与产业技术研究院 | electrode core body of flexible battery and preparation method and application thereof |
| CN111490284A (en) * | 2020-04-22 | 2020-08-04 | 深圳吉阳智能科技有限公司 | Composite lamination preparation method and composite lamination |
| CN111755756A (en) * | 2020-06-05 | 2020-10-09 | 无锡先导智能装备股份有限公司 | Battery cell lamination method and device |
| CN111769333A (en) * | 2020-06-29 | 2020-10-13 | 合肥国轩高科动力能源有限公司 | Novel lamination method based on cutting and stacking all-in-one machine |
| CN112038708A (en) * | 2020-10-10 | 2020-12-04 | 合肥国轩高科动力能源有限公司 | Lithium ion battery roll core structure and manufacturing method thereof |
| WO2021008555A1 (en) * | 2019-07-16 | 2021-01-21 | 蜂巢能源科技有限公司 | Die-cutting lamination system and method |
| CN112259802A (en) * | 2020-03-31 | 2021-01-22 | 蜂巢能源科技有限公司 | Lithium ion battery lamination method and device |
| CN114039103A (en) * | 2021-10-26 | 2022-02-11 | 三一技术装备有限公司 | Production method and production device of winding battery cell |
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| CN104584307A (en) * | 2013-02-15 | 2015-04-29 | 株式会社Lg化学 | Electrode assembly and method for manufacturing same |
| WO2015060595A1 (en) * | 2013-10-24 | 2015-04-30 | 주식회사 유일에너테크 | Battery roll manufacturing method and battery roll |
| CN104600240A (en) * | 2013-10-31 | 2015-05-06 | 株式会社Lg化学 | Electrode assembly and lithium secondary battery having same |
| 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 |
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2016
- 2016-05-29 CN CN201610361064.3A patent/CN106025374A/en active Pending
Patent Citations (6)
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| JP2011065913A (en) * | 2009-09-18 | 2011-03-31 | Sumitomo Electric Ind Ltd | Nonaqueous solid electrolyte battery and its manufacturing method |
| EP2450995A1 (en) * | 2010-11-03 | 2012-05-09 | Nxp B.V. | Battery |
| CN104584307A (en) * | 2013-02-15 | 2015-04-29 | 株式会社Lg化学 | Electrode assembly and method for manufacturing same |
| WO2015060595A1 (en) * | 2013-10-24 | 2015-04-30 | 주식회사 유일에너테크 | Battery roll manufacturing method and battery roll |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482163A (en) * | 2017-07-11 | 2017-12-15 | 多氟多（焦作）新能源科技有限公司 | The manufacture method and battery cell of a kind of electrode assemblie unit, electrode assemblie |
| 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 |
| CN109560322A (en) * | 2017-12-29 | 2019-04-02 | 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 |
| CN110071321A (en) * | 2018-01-22 | 2019-07-30 | 大众汽车有限公司 | Manufacture is used for the method for the electrode stack of energy accumulator, stack equipment |
| CN110071321B (en) * | 2018-01-22 | 2022-04-26 | 大众汽车有限公司 | Method for producing an electrode stack for an energy store, stacking device |
| CN108832191A (en) * | 2018-06-26 | 2018-11-16 | 常州金中源智能装备有限公司 | A kind of method of the encapsulated fixation of core of lithium ion cell |
| CN110289450A (en) * | 2019-04-29 | 2019-09-27 | 深圳市赢合科技股份有限公司 | A kind of lamination process of novel battery pole piece |
| WO2021008555A1 (en) * | 2019-07-16 | 2021-01-21 | 蜂巢能源科技有限公司 | Die-cutting lamination system and method |
| CN110571472A (en) * | 2019-08-21 | 2019-12-13 | 温州大学新材料与产业技术研究院 | electrode core body of flexible battery and preparation method and application thereof |
| CN112259802A (en) * | 2020-03-31 | 2021-01-22 | 蜂巢能源科技有限公司 | Lithium ion battery lamination method and device |
| CN111490284A (en) * | 2020-04-22 | 2020-08-04 | 深圳吉阳智能科技有限公司 | Composite lamination preparation method and composite lamination |
| CN111755756A (en) * | 2020-06-05 | 2020-10-09 | 无锡先导智能装备股份有限公司 | Battery cell lamination method and device |
| CN111769333A (en) * | 2020-06-29 | 2020-10-13 | 合肥国轩高科动力能源有限公司 | Novel lamination method based on cutting and stacking all-in-one machine |
| CN112038708A (en) * | 2020-10-10 | 2020-12-04 | 合肥国轩高科动力能源有限公司 | Lithium ion battery roll core structure and manufacturing method thereof |
| CN114039103A (en) * | 2021-10-26 | 2022-02-11 | 三一技术装备有限公司 | Production method and production device of winding battery cell |
| CN114039103B (en) * | 2021-10-26 | 2023-09-08 | 三一技术装备有限公司 | Production method and production device of winding battery core |
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Application publication date: 20161012 |