CN102315398A - Packaging method of lithium ion battery - Google Patents
Packaging method of lithium ion battery Download PDFInfo
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- CN102315398A CN102315398A CN201110290792A CN201110290792A CN102315398A CN 102315398 A CN102315398 A CN 102315398A CN 201110290792 A CN201110290792 A CN 201110290792A CN 201110290792 A CN201110290792 A CN 201110290792A CN 102315398 A CN102315398 A CN 102315398A
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- lithium ion
- ion battery
- aluminium foil
- film
- packing
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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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Abstract
Belonging to the lithium ion battery field, the invention specifically relates to a novel packaging method of a thin type lithium ion battery. Different from traditional packaging methods, a roll core is wrapped by aluminium foil after finishing coiling, and is then subjected to hot packaging with a polymeric membrane 1. Compared with prior art, the method of the invention is more convenient for operation and easier for realization in production. Also the battery employing the method provided in the invention has better flexibility and higher energy density.
Description
Technical field
The invention belongs to the lithium ion battery field, more particularly relate to a kind of method for packing of thin lithium ion battery.
Background technology
Along with light, the thinning development of electronic product, correspondingly its employed lithium ion battery is also more and more lighter, thin thereupon.Therefore, the encapsulation to the light and thin type battery also is faced with great challenge.
The electric core of having reeled at present, generally is to adopt aluminum-plastic composite membrane to encapsulate.Aluminum-plastic composite membrane is composited by aluminium foil and macromolecular material; Because the physical property between different materials exists than big-difference, in order to obtain reliability of products and consistency, causes the packaging technology relative complex; Equipment requirements is relatively stricter, and the enforcement difficulty in the production is bigger.Especially for the encapsulation of slim electric core, the problem of this respect is more outstanding.
In the lithium ion battery field; Be different from traditional method for packing at present; The easy packaged type of can simplify production operation, increasing work efficiency is the direction of at present domestic and international relevant enterprise, scientific research institution's research, and finds to have in this respect the report of breakthrough at present as yet.
Summary of the invention
The object of the invention is to provide a kind of short-cut method that thin lithium ion battery is effectively encapsulated just.
To achieve these goals, the present invention adopts following technical scheme: a kind of method for packing of lithium ion battery, and be to roll up the reel back that finishes of core 3 with conventional package method difference and wrap up with aluminium foil 2, carry out heat-seal with macromolecule membrane 1 again.
The effect of aluminium foil is to stop that outside steam is penetrated into electric in-core portion; The effect of PE, PP or PET film guarantees that electric core has certain suppleness when being encapsulation.Adopt the encapsulation of this kind method for thin battery, on producing, realize more easily, operate easier; And can guarantee to encapsulate the pliability of the electric core in back.
At present, the used aluminum-plastic composite membrane of encapsulation is composited by aluminium foil and macromolecular material.Because the physical property between different materials differs greatly, packaging technology is complicated, and higher to equipment requirements, implements difficulty in the production.
Compared with prior art, aluminium foil that method for packing of the present invention is used and PE, PP or PET film have substituted original aluminum-plastic composite membrane, and technology is simpler on producing, and is less to the required precision of equipment.Simultaneously, the electric core size after mode encapsulates thus has bigger adjustment space, has correspondingly improved the energy density of battery.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the cutaway view of A-A among Fig. 1.
Embodiment
Execution mode one is with reference to Fig. 2.After electric core winding finishes, outside aluminium foil 2 parcels with 5 μ m; Volume core 3 behind the parcel directly carries out heat-seal with polypropylene (PP) film 1.
Execution mode two is with reference to Fig. 2.After electric core winding finishes, outside aluminium foil 2 parcels with 30 μ m; Volume core 3 behind the parcel directly carries out heat-seal with polypropylene (PP) film 1.
Execution mode three is with reference to Fig. 2.After electric core winding finishes, outside aluminium foil 2 parcels with 15 μ m; Volume core 3 behind the parcel directly carries out heat-seal with PETG (PET) film 1.
Execution mode four is with reference to Fig. 2.After electric core winding finishes, outside aluminium foil 2 parcels with 25 μ m; Volume core 3 behind the parcel directly carries out heat-seal with PETG (PET) film 1.
Execution mode five is with reference to Fig. 2.After electric core winding finishes, outside aluminium foil 2 parcels with 10 μ m; Volume core 3 behind the parcel directly carries out heat-seal with polyethylene (PE) film 1.
Execution mode six is with reference to Fig. 2.After electric core winding finishes, outside aluminium foil 2 parcels with 20 μ m; Volume core 3 behind the parcel directly carries out heat-seal with polyethylene (PE) film 1.
It is understandable that, only provided the part execution mode of the flexible packing lithium ion battery of this invention novel package structure in this specification.According to above-mentioned principle, the present invention can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the embodiment that discloses and describe above the present invention is not limited to also should fall into modifications more of the present invention and change in the protection range of claim of this patent.In addition, although used some specific terms in this specification, these terms are explanation for ease just, the present invention is not constituted any restriction.
Claims (3)
1. the method for packing of a lithium ion battery is characterized in that rolling up and wraps up with aluminium foil (2) after core (3) coiling finishes, and uses macromolecule membrane (1) to carry out heat-seal again.
2. the method for packing of a kind of lithium ion battery according to claim 1, the thickness that it is characterized in that described aluminium foil (2) is 5～30 μ m.
3. the method for packing of a kind of lithium ion battery according to claim 1 is characterized in that described macromolecule membrane (1) is wherein a kind of of polyethylene film, polypropylene film or pet film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110290792A CN102315398A (en) | 2011-09-29 | 2011-09-29 | Packaging method of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110290792A CN102315398A (en) | 2011-09-29 | 2011-09-29 | Packaging method of lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102315398A true CN102315398A (en) | 2012-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110290792A Pending CN102315398A (en) | 2011-09-29 | 2011-09-29 | Packaging method of lithium ion battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN102315398A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832412A (en) * | 2012-09-13 | 2012-12-19 | 苏州晶纯新材料有限公司 | Method for encapsulating all-solid thin film lithium ion battery, encapsulating material thereof and method for preparing encapsulating material |
| CN108242572A (en) * | 2017-12-11 | 2018-07-03 | 东莞市创明电池技术有限公司 | 3500mAh high power capacity cylindrical lithium batteries |
| CN110352510A (en) * | 2017-10-31 | 2019-10-18 | 株式会社Lg化学 | Secondary cell including injection molding battery case |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2388712Y (en) * | 1999-09-22 | 2000-07-19 | 北京大学 | Lithium ion cell packaging case |
| CN2772035Y (en) * | 2005-07-07 | 2006-04-12 | 纪柏全 | Cell external layer-packaging structure |
| CN101043071A (en) * | 2007-04-11 | 2007-09-26 | 深圳市邦凯电子有限公司 | Encapsulation method for electric core of flexible packing lithium battery |
| CN101764199A (en) * | 2010-01-13 | 2010-06-30 | 黄山永新股份有限公司 | High-blocking corrosion-resisting lithium battery composite packaging film and preparation method thereof |
| CN201528017U (en) * | 2009-09-29 | 2010-07-14 | 佛山市顺德区精进能源有限公司 | Lithium ion battery structure |
| CN201623208U (en) * | 2010-03-12 | 2010-11-03 | 宁德新能源科技有限公司 | Power battery core |
-
2011
- 2011-09-29 CN CN201110290792A patent/CN102315398A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2388712Y (en) * | 1999-09-22 | 2000-07-19 | 北京大学 | Lithium ion cell packaging case |
| CN2772035Y (en) * | 2005-07-07 | 2006-04-12 | 纪柏全 | Cell external layer-packaging structure |
| CN101043071A (en) * | 2007-04-11 | 2007-09-26 | 深圳市邦凯电子有限公司 | Encapsulation method for electric core of flexible packing lithium battery |
| CN201528017U (en) * | 2009-09-29 | 2010-07-14 | 佛山市顺德区精进能源有限公司 | Lithium ion battery structure |
| CN101764199A (en) * | 2010-01-13 | 2010-06-30 | 黄山永新股份有限公司 | High-blocking corrosion-resisting lithium battery composite packaging film and preparation method thereof |
| CN201623208U (en) * | 2010-03-12 | 2010-11-03 | 宁德新能源科技有限公司 | Power battery core |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832412A (en) * | 2012-09-13 | 2012-12-19 | 苏州晶纯新材料有限公司 | Method for encapsulating all-solid thin film lithium ion battery, encapsulating material thereof and method for preparing encapsulating material |
| CN102832412B (en) * | 2012-09-13 | 2014-02-26 | 苏州晶纯新材料有限公司 | Method for encapsulating all-solid thin film lithium ion battery, encapsulating material thereof and method for preparing encapsulating material |
| CN110352510A (en) * | 2017-10-31 | 2019-10-18 | 株式会社Lg化学 | Secondary cell including injection molding battery case |
| CN108242572A (en) * | 2017-12-11 | 2018-07-03 | 东莞市创明电池技术有限公司 | 3500mAh high power capacity cylindrical lithium batteries |
| CN108242572B (en) * | 2017-12-11 | 2020-06-12 | 东莞市创明电池技术有限公司 | 3500mAh high-capacity cylindrical lithium battery |
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| ASS | Succession or assignment of patent right |
Owner name: HUNAN LIFANG NEW ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: PRIME POWER (YANTAI) CO., LTD. Effective date: 20140507 |
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Free format text: CORRECT: ADDRESS; FROM: 264000 YANTAI, SHANDONG PROVINCE TO: 412000 ZHUZHOU, HUNAN PROVINCE |
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Effective date of registration: 20140507 Address after: Jinlong Road, Malaysia Industrial Park in Hunan province Zhuzhou city Tianyuan District 412000 Applicant after: HUNAN LIFANG NEW ENERGY TECHNOLOGY CO., LTD. Address before: 264000 No. 50 middle Beijing Road, Yantai economic and Technological Development Zone, Shandong Applicant before: Prime Power (Yantai) Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120111 |
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| RJ01 | Rejection of invention patent application after publication |