CN110277538A - A kind of production method and laminated batteries of pole piece of laminated battery - Google Patents
A kind of production method and laminated batteries of pole piece of laminated battery Download PDFInfo
- Publication number
- CN110277538A CN110277538A CN201910553722.2A CN201910553722A CN110277538A CN 110277538 A CN110277538 A CN 110277538A CN 201910553722 A CN201910553722 A CN 201910553722A CN 110277538 A CN110277538 A CN 110277538A
- Authority
- CN
- China
- Prior art keywords
- pole piece
- lithium ion
- laminated battery
- production method
- ion laminated
- 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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of production methods of lithium ion laminated battery pole piece, comprising the following steps: pole piece is divided into the multiple units not cut off continuously.Advantage of the present invention is to be divided into pole piece the multiple units not cut off continuously to substitute the production efficiency that existing monolithic cutting improves pole piece of laminated battery.
Description
Technical field
The present invention relates to laminated batteries production technical fields, and in particular to a kind of production method and benefit of pole piece of laminated battery
Laminated batteries are made with the pole piece.
Background technique
Lithium battery has many advantages, such as that energy density is high, have extended cycle life, self discharge is small, memory-less effect, from commercialization with
Come, has received widespread attention and apply.Widely applied today is studied in new energy, lithium ion battery increasingly occupies emphatically
The status wanted.But for power lithium-ion battery, it is required that high capacity so that in industry gradually production emphasis turn
To in laminated type lithium ion battery.
The production method of lithium battery mainly has takeup type and two kinds stacked at present.Coiled battery is positive plate and to bear
Pole piece is made into continuous sheet type, and centre is separated by diaphragm, and battery roll core is then made by way of winding.This tradition
Coiled lithium ion battery in the curved place of pole piece there are the problems in stress collection, the expansion of the pole piece as caused by charge and discharge and
The deformation that long-term accumulated is likely to result in pole piece is shunk, battery performance is influenced.
Stack type lithium ion battery mainly has Z-shaped lap wound and spooled laminations, and Z-shaped lap wound is mainly by positive/negative plate point
It is not cut into monolithic, diaphragm is in Z-shaped lap wound, and positive and negative anodes monolithic, which successively intersects, to be stacked, and centre is separated by diaphragm.Such Z-shaped is folded
Around positive monolithic, diaphragm, cathode monolithic successively lap wound is produced, production efficiency is lower, and the arrangement of positive/negative plate position is easy to appear
Dislocation.Positive plate, diaphragm, negative electrode tab are successively stacked composition battery cell by takeup type lamination, battery cell again the second layer every
Bit combination on film, by second layer membrane winding at battery roll core.Takeup type laminated batteries wind the electricity of formation in one direction
Core is oval on section, will lead to and contacts between electrode monomer and electrode monomer not closely, influences the performance of battery.
Production for stacked baby battery, also mainly by multiple positive plate a and multiple negative electrode tab b with isolation film c points
Open and be laminated, lamination order is ... a, c, b, c, a......, there are the following problems in production: production positive plate is negative
It is all to cause working efficiency low using directly monolithic technology is cut by monolith pole piece when pole piece.
Therefore, it is necessary to provide production method and the device of a kind of pole piece of laminated battery to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of production methods of pole piece of laminated battery, solve pole existing in the prior art
Piece, which is cut into monolithic, leads to problems such as working efficiency low.
The production method of pole piece of laminated battery provided by the invention, comprising the following steps: pole piece is divided into and is not cut continuously
Disconnected multiple units.
The unit includes pole piece matrix, tab, and tab setting passes through company between pole piece matrix side, adjacent tab
Tape splicing is connected with each other.
The pole piece includes anode pole piece and cathode pole piece.
The adjacent pole piece matrix it is separated.
The connecting band is band-like.
For strip, circle, triangle etc., other are different from the abnormal shape of existing slice cell shapes to the pole piece matrix.
The invention also discloses a kind of lithium ion laminated battery, the lithium ion laminated battery is made of above-mentioned pole piece,
Positive plate and negative electrode tab are separated with isolation film specially, is cut again after intersecting, lithium ion laminated battery is made.
The production method of pole piece of laminated battery provided by the invention is once obtained after the completion of above-mentioned pole piece laminating more
A battery core unit, then multiple battery core lists are cut into single battery core, substitute the life that existing monolithic cutting improves laminated batteries
Produce efficiency.
Detailed description of the invention
Fig. 1 is the schematic diagram of product structure that embodiment one produces.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Embodiment one
A kind of production method of lithium ion laminated battery pole piece of the present invention comprising the steps of:
Monolith pole piece is placed on fixture, using laser cutting machine or abrasive cutoff machine, by pole piece according to the contours segmentation of fixture at
Whole 11 (see the Fig. 1) containing multiple units not cut off continuously, produce once and multiple units can be obtained, improve work efficiency.
The present embodiment unit includes pole piece matrix 111, tab 112, tab setting in pole piece matrix side, adjacent tab it
Between be connected with each other by connecting band 113.
The present embodiment pole piece includes positive plate and negative electrode tab.
The adjacent pole piece matrix of the present embodiment it is separated.
The connecting band of the present embodiment is band-like.
The pole piece matrix of the present embodiment is strip.
Embodiment two
A kind of lithium ion laminated battery of the present embodiment is made of one pole piece of embodiment, specially first by embodiment one
The obtained entirety (positive plate or negative electrode tab) containing multiple units that do not cut off continuously, single positive plate and negative electrode tab are isolated
Film separates, according to negative electrode tab-diaphragm-positive plate-diaphragm-negative electrode tab-diaphragm-negative electrode tab-diaphragm-positive plate ...-diaphragm-cathode
One negative one of piece positive mode intersecting after the completion of pole piece laminating, once obtains multiple battery core units, then by multiple battery core lists
Member cuts into single battery core, obtains lithium ion laminated battery.
Above content be only exemplary embodiment of the present invention, and be susceptible to other it is a variety of change and without departing from the present invention
True scope described in claim.
Claims (7)
1. a kind of production method of lithium ion laminated battery pole piece, which comprises the following steps: pole piece is divided into company
The continuous multiple units not cut off.
2. the production method of lithium ion laminated battery pole piece according to claim 1, which is characterized in that the unit includes
Pole piece matrix, tab, tab is arranged between pole piece matrix side, adjacent tab to be connected with each other by connecting band.
3. the production method of lithium ion laminated battery pole piece according to claim 2, which is characterized in that the pole piece includes
Positive plate and negative electrode tab.
4. the production method of lithium ion laminated battery pole piece according to claim 3, which is characterized in that adjacent pole piece mould
Piece it is separated.
5. the production method of lithium ion laminated battery pole piece according to claim 4, which is characterized in that the connecting band is
It is band-like.
6. the production method of lithium ion laminated battery pole piece according to claim 5, which is characterized in that the pole piece matrix
The abnormal shape that other are different from existing slice cell shapes for strip, circle, triangle etc..
7. a kind of lithium ion laminated battery, the lithium ion laminated battery is made of any pole piece of claim 1-6,
It is characterized in that, specific manufacturing process is to separate the positive plate not cut off continuously and negative electrode tab with isolation film, after intersecting
It cuts again, lithium ion laminated battery is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910553722.2A CN110277538A (en) | 2019-06-24 | 2019-06-24 | A kind of production method and laminated batteries of pole piece of laminated battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910553722.2A CN110277538A (en) | 2019-06-24 | 2019-06-24 | A kind of production method and laminated batteries of pole piece of laminated battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110277538A true CN110277538A (en) | 2019-09-24 |
Family
ID=67962351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910553722.2A Withdrawn CN110277538A (en) | 2019-06-24 | 2019-06-24 | A kind of production method and laminated batteries of pole piece of laminated battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110277538A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111799515A (en) * | 2020-08-04 | 2020-10-20 | 深圳聚锂能源有限公司 | Manufacturing process of L-shaped laminated lithium ion battery core package |
| WO2021253406A1 (en) * | 2020-06-19 | 2021-12-23 | 超威电源集团有限公司 | Electrode plate slicing device and method for lead-acid battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163503A (en) * | 2010-02-16 | 2011-08-24 | 三星电机株式会社 | Methods of manufacturing electric double layer capacitor cell and electric double layer capacitor and apparatus for manufacturing electric double layer capacitor cell |
| CN106207195A (en) * | 2016-09-20 | 2016-12-07 | 广东国光电子有限公司 | A kind of stacked flexible battery and preparation method thereof |
| CN106654148A (en) * | 2015-10-30 | 2017-05-10 | 宝山钢铁股份有限公司 | Battery pole piece cutting method and battery core assembly method containing battery pole piece cutting method |
| CN107634176A (en) * | 2016-07-19 | 2018-01-26 | 罗伯特·博世有限公司 | For manufacturing the method and assembly system of electrode stack |
| CN109860721A (en) * | 2019-02-13 | 2019-06-07 | 柔电（武汉）科技有限公司 | A kind of batch preparation of minicell |
-
2019
- 2019-06-24 CN CN201910553722.2A patent/CN110277538A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163503A (en) * | 2010-02-16 | 2011-08-24 | 三星电机株式会社 | Methods of manufacturing electric double layer capacitor cell and electric double layer capacitor and apparatus for manufacturing electric double layer capacitor cell |
| CN106654148A (en) * | 2015-10-30 | 2017-05-10 | 宝山钢铁股份有限公司 | Battery pole piece cutting method and battery core assembly method containing battery pole piece cutting method |
| CN107634176A (en) * | 2016-07-19 | 2018-01-26 | 罗伯特·博世有限公司 | For manufacturing the method and assembly system of electrode stack |
| CN106207195A (en) * | 2016-09-20 | 2016-12-07 | 广东国光电子有限公司 | A kind of stacked flexible battery and preparation method thereof |
| CN109860721A (en) * | 2019-02-13 | 2019-06-07 | 柔电（武汉）科技有限公司 | A kind of batch preparation of minicell |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021253406A1 (en) * | 2020-06-19 | 2021-12-23 | 超威电源集团有限公司 | Electrode plate slicing device and method for lead-acid battery |
| CN111799515A (en) * | 2020-08-04 | 2020-10-20 | 深圳聚锂能源有限公司 | Manufacturing process of L-shaped laminated lithium ion battery core package |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190924 |