CN103633378B - A kind of preparation method of coiling type lithium battery - Google Patents
A kind of preparation method of coiling type lithium battery Download PDFInfo
- Publication number
- CN103633378B CN103633378B CN201310651903.1A CN201310651903A CN103633378B CN 103633378 B CN103633378 B CN 103633378B CN 201310651903 A CN201310651903 A CN 201310651903A CN 103633378 B CN103633378 B CN 103633378B
- Authority
- CN
- China
- Prior art keywords
- nonwoven layer
- lithium battery
- polyolefin micropore
- barrier film
- micropore rete
- 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.)
- Active
Links
Classifications
-
- 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
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Cell Separators (AREA)
Abstract
The invention discloses a kind of preparation method of coiling type lithium battery, comprise the following steps: negative plate wraps up from negative plate head end by (1) by nonwoven layer completely, nonwoven layer wrapped up completely by polyolefin micropore rete, the volume stem forming battery core to be spooled is divided again; (2) after dividing pre-wound at least 180 ° by volume stem, then positive plate is attached to the outside of polyolefin micropore rete, and is wound into annular from inside to outside, during ending, with nonwoven layer and polyolefin micropore rete around 360 °, end of reel end, high temperature gummed tape clings, and makes core.The present invention forms the barrier film of lithium battery jointly by nonwoven layer and polyolefin micropore rete, and Absorbable organic halogens improves more than the broken film temperature to 200 DEG C of barrier film, and then effect is better for the barrier film of coated with ceramic layer, so just effectively reduces cell safety hidden danger.
Description
Technical field
The present invention relates to a kind of preparation method of coiling type lithium battery.
Background technology
Lithium ion battery, as chemical power source of new generation, has been applied to the various aspects of social life: expand to the fields such as energy storage, electric bicycle/motorcycle, electric automobile from 3C field.Along with the continuous increase of output, the accidents such as the lithium battery exposed all over the world blast, burning often have report: in January, 2013, U.S.'s Boeing 787 passenger plane lithium battery catches fire, and causes huge economic loss; 2007, the spontaneous combustion of Sony Notebook Battery caused large-tonnage product to recall ..., therefore the security performance of lithium battery promotes and always is and pays close attention to technical problem in industry.
Four large main materials of lithium battery are respectively: positive pole, negative pole, barrier film, electrolyte, its septation, as one of main material, is vital to the fail safe of lithium battery.When battery is under abnormal discharge and recharge or thermal runaway state, barrier film raises with temperature and deforms, and will melt to be bonded together micropore is disappeared when reaching its closed pore temperature, stops ion to pass through, timely cut-out internal current, prevents internal temperature of battery from sharply raising.But if now battery system is in thermal run away state, that is: battery temperature continues to be increased beyond diaphragm closed pore temperature, and after reaching broken film temperature, membrane ruptures, both positive and negative polarity large area directly contacts, cause battery to be short-circuited, under extreme case, can battery explosion be made.Therefore, for security consideration, battery diaphragm should possess relatively low closed pore temperature and higher broken film temperature.
At present, conventional its closed pore temperature of microporous polyolefin film and broken film temperature as shown in the table:
As can be seen from the table, conventional microporous polyolefin film closed pore temperature is lower, and excursion is relatively little, but the changing greatly of broken film temperature, there is very large parameter when battery thermal runaway in this, causes great potential safety hazard.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of preparation method of coiling type lithium battery.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is, a kind of preparation method of coiling type lithium battery, and coiling type lithium battery comprises positive plate and negative plate, comprises the following steps:
(1) nonwoven layer wrapped up completely by negative plate from negative plate head end, then nonwoven layer wrapped up completely by polyolefin micropore rete, the volume stem forming battery core to be spooled is divided;
(2) after dividing pre-wound at least 180 ° by volume stem, then positive plate is attached to the outside of polyolefin micropore rete, and is wound into annular from inside to outside, during ending, with nonwoven layer and polyolefin micropore rete around 360 °, end of reel end, high temperature gummed tape clings, and makes core.
The invention has the beneficial effects as follows:
Jointly be made up of the barrier film of lithium battery nonwoven layer and polyolefin micropore rete, Absorbable organic halogens improves more than the broken film temperature to 200 DEG C of barrier film, and then effect is better for the barrier film of coated with ceramic layer, so just effectively reduces cell safety hidden danger.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the structural representation of coiling type lithium battery embodiment of the present invention.
In figure, 1-negative plate, 2-nonwoven layer barrier film, 3-polyolefin micropore rete barrier film, 4-positive plate.
Embodiment
Step 1, lithium battery positive pole active substance and negative electrode active material to be bonded on metal foil respectively by binding agent, to make positive plate and negative plate, as the positive plate 4 in Fig. 1 and negative plate 1;
Step 2, by positive plate 4 and negative plate 1 winding become the battery structure shown in Fig. 1, detailed process is as follows:
1) material prepares: install positive plate, negative plate, polyolefin micropore rete barrier film 3, nonwoven layer barrier film 2 on the winder respectively, and terminal adhesive tape; Wherein polyolefin micropore rete is the monolayer polyethylene layer of double-coated ceramic layer; Also the double-coated of nonwoven layer barrier film 2 has ceramic layer;
2) core winding: negative plate 1, polyolefin micropore rete barrier film 3 and nonwoven layer barrier film 2 are sent to winding module, after first pre-roll at least 180 °, replant into positive plate 4, reel, windings is controlled by controller, by the alignment of rectify a deviation module controls barrier film and pole piece in winding process, after single core has reeled, respectively positive plate 4, negative plate 1, polyolefin micropore rete barrier film 3 and nonwoven layer barrier film 2 are cut off by cut-out module;
3) rubberizing discharging: completed the fixing termination of core by rubberizing module after, single core unloads and proceeds to subsequent processing by inversion module;
4) battery makes: the single core made loaded in battery container, carry out going between and fluid injection after seal welding, activation, complete battery and make.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within claims of the present invention.
Claims (1)
1. a preparation method for coiling type lithium battery, described coiling type lithium battery comprises positive plate and negative plate, it is characterized in that comprising the following steps:
(1) nonwoven layer wrapped up completely by negative plate from negative plate head end, then nonwoven layer wrapped up completely by polyolefin micropore rete, the volume stem forming battery core to be spooled is divided;
(2) after dividing pre-wound at least 180 ° by volume stem, then positive plate is attached to the outside of polyolefin micropore rete, and is wound into annular from inside to outside, during ending, with nonwoven layer and polyolefin micropore rete around 360 °, end of reel end, high temperature gummed tape clings, and makes core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310651903.1A CN103633378B (en) | 2013-12-04 | 2013-12-04 | A kind of preparation method of coiling type lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310651903.1A CN103633378B (en) | 2013-12-04 | 2013-12-04 | A kind of preparation method of coiling type lithium battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103633378A CN103633378A (en) | 2014-03-12 |
| CN103633378B true CN103633378B (en) | 2016-04-13 |
Family
ID=50214160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310651903.1A Active CN103633378B (en) | 2013-12-04 | 2013-12-04 | A kind of preparation method of coiling type lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103633378B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742721A (en) * | 2016-04-27 | 2016-07-06 | 国轩新能源（苏州）有限公司 | High-energy-ratio low-internal-resistance cylindrical lithium ion battery |
| WO2018116876A1 (en) * | 2016-12-22 | 2018-06-28 | 三洋電機株式会社 | Cylindrical non-aqueous electrolyte secondary battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1816923A (en) * | 2004-01-05 | 2006-08-09 | 松下电器产业株式会社 | Lithium secondary battery |
| CN1851957A (en) * | 2006-04-26 | 2006-10-25 | 北京大学 | Polymer composite diaphragm and its preparing method |
| CN101369645A (en) * | 2008-09-23 | 2009-02-18 | 天津力神电池股份有限公司 | Method of manufacturing diaphragm used for high security lithium ion secondary battery |
| CN102349186A (en) * | 2010-04-27 | 2012-02-08 | 松下电器产业株式会社 | Non-aqueous secondary battery and electrodes for use in same |
| CN103115857A (en) * | 2013-01-22 | 2013-05-22 | 合肥国轩高科动力能源股份公司 | Method for testing porosity of battery diaphragm coated alumina ceramic coating |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002025526A (en) * | 2000-07-07 | 2002-01-25 | Sony Corp | Nonaqueous electrolytic solution battery |
| WO2011108119A1 (en) * | 2010-03-05 | 2011-09-09 | トヨタ自動車株式会社 | Lithium secondary battery and separator for use in said battery |
-
2013
- 2013-12-04 CN CN201310651903.1A patent/CN103633378B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1816923A (en) * | 2004-01-05 | 2006-08-09 | 松下电器产业株式会社 | Lithium secondary battery |
| CN1851957A (en) * | 2006-04-26 | 2006-10-25 | 北京大学 | Polymer composite diaphragm and its preparing method |
| CN101369645A (en) * | 2008-09-23 | 2009-02-18 | 天津力神电池股份有限公司 | Method of manufacturing diaphragm used for high security lithium ion secondary battery |
| CN102349186A (en) * | 2010-04-27 | 2012-02-08 | 松下电器产业株式会社 | Non-aqueous secondary battery and electrodes for use in same |
| CN103115857A (en) * | 2013-01-22 | 2013-05-22 | 合肥国轩高科动力能源股份公司 | Method for testing porosity of battery diaphragm coated alumina ceramic coating |
Non-Patent Citations (1)
| Title |
|---|
| 陶瓷涂层隔膜对锂离子电池性能影响;姚汪兵 等;《电池工业》;20130825;第18卷(第3/4期);摘要及结论 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103633378A (en) | 2014-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105355962B (en) | A kind of preparation method of takeup type laminated batteries | |
| CN103579666B (en) | A kind of low internal resistance compound lithium ion battery core and manufacture craft thereof | |
| CN201845833U (en) | Novel polymer lithium-ion secondary battery | |
| CN103035954A (en) | Winding lithium ion battery and fabrication method thereof | |
| CN101083342B (en) | Winding flexible packing lithium ionic cell unit, cell and process for production | |
| CN102208590B (en) | Method for controlling burrs at head and tail parts of battery pole piece | |
| CN109301152A (en) | A kind of lithium ion battery and its manufacturing process | |
| JPWO2018116876A1 (en) | Cylindrical non-aqueous electrolyte secondary battery | |
| CN104577192A (en) | High-rate lithium ion power battery and manufacturing method thereof | |
| CN103633378B (en) | A kind of preparation method of coiling type lithium battery | |
| CN203085704U (en) | Lithium ion battery | |
| CN202172108U (en) | Coiled core structure for lithium ion battery | |
| CN205231192U (en) | High -safety polymer lithium ion battery | |
| CN106784602A (en) | A kind of cylindrical lithium ion battery pole piece winds burr removing method | |
| CN103762387A (en) | Method for preparing coiled polymer lithium battery and coiled polymer lithium battery | |
| CN102044706A (en) | Method for preparing flexible packaging cylindrical lithium battery | |
| CN202159711U (en) | Cylinder-shaped battery with flexible package | |
| CN104953187A (en) | Processing method of lithium ion battery | |
| CN207705300U (en) | A kind of negative plate of column lithium ion battery and its battery pole group of preparation | |
| CN202384420U (en) | Diaphragm for lithium ion batteries and lithium ion battery | |
| CN101582521B (en) | Coiled lithium-ion secondary battery taking winding needle as positive and negative electrodes and manufacturing method thereof | |
| CN105990611A (en) | Lithium ion battery wound core and manufacturing method of same | |
| CN201673968U (en) | Miniature polymer lithium ion battery with dissymmetrical assembly structure | |
| JP6302797B2 (en) | Prismatic secondary battery | |
| JP6489360B2 (en) | Secondary battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230000 Yaohai Industrial Zone, Hefei New District, Anhui, No. D weft Road, No. 7 Applicant after: Hefei Guoxuan High-Tech Power Energy Co., Ltd. Address before: 230000 Yaohai Industrial Park, Anhui, Hefei No. D weft Road, No. 7 Applicant before: Hefei Guoxuan High-Tech Power Energy Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160627 Address after: Tiger Road Liuhe Economic Development Zone in Nanjing City, Jiangsu Province, No. 19 210000 Patentee after: NANJING GUOXUAN BATTERY CO., LTD. Address before: 230000 Yaohai Industrial Zone, Hefei New District, Anhui, No. D weft Road, No. 7 Patentee before: Hefei Guoxuan High-Tech Power Energy Co., Ltd. |