CN100413117C - Method for preventing cell housing from damage in production - Google Patents
Method for preventing cell housing from damage in production Download PDFInfo
- Publication number
- CN100413117C CN100413117C CNB2004100277580A CN200410027758A CN100413117C CN 100413117 C CN100413117 C CN 100413117C CN B2004100277580 A CNB2004100277580 A CN B2004100277580A CN 200410027758 A CN200410027758 A CN 200410027758A CN 100413117 C CN100413117 C CN 100413117C
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- China
- Prior art keywords
- film
- battery
- protective film
- battery case
- lithium ion
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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
The present invention relates to a method for preventing the aluminum casing of a lithium ion battery from being damaged in production, which comprises the following steps: (1) before a battery casing is put to an assembling line, a layer of protective film is pasted on the surface of every casing; (2) after various procedures of coiling, cover cap welding, cover cap covering and formation of a pole piece are completed, and shaping and sealing are carried out, the pasted film is torn down, and a battery of which the surface is bright is obtained. The protective film can be a low-density polyethylene (LDPE) film or a polyvinyl chloride (PVC) film or a polycarbonate (PC) film. Compared with the prior art, the method has the advantages that the aluminum casing lithium ion battery which completes assembly procedures can have bright surface, and scarcely has scratches, and the method is simple and is easy to operate.
Description
Technical field
The present invention relates to secondary cell, particularly relate to the production technology of the nonactive parts of sheet lithium ion battery, relate in particular to the lithium ion battery aluminum shell and prevent impaired method in process of production.
Background technology
The prior art lithium ion battery has steel casing usually, and its hardness is higher, be not easy by scratch, but weight is big.In recent years, lithium ion battery market is developed towards light, thin direction, and the battery of mobile telephone manufacturer is tending towards adopting aluminum shell for satisfying this type of demand.Though but the aluminum alloy casing light weight as easy as rolling off a log the bad order phenomenon takes place in process of production to be scratched etc., quality often can not satisfy the high-end customer needs, makes the competitiveness of aluminum-shell battery reduce greatly.
Summary of the invention
The technical problem to be solved in the present invention is to avoid above-mentioned the deficiencies in the prior art part and proposes a kind of method that prevents that battery case is impaired in process of production, after making the lithium ion battery have aluminum shell get off from assembling line still light have no scoring trace as before.
The technical scheme that the present invention solve the technical problem employing is: propose a method that prevents that battery case is impaired aborning, comprise step
1. before battery case is dropped into assembling line, for the surface of the described shell of each piece all attaches one deck protective film;
2. finish the coiling of pole piece, welding every operation of blocking a shot, blocking a shot and changing into, and after shaping, sealing, the film of tearing and attaching promptly is the battery that a described case surface does not have scoring trace.
Compare with prior art, the advantage of the inventive method is, finishes the aluminum hull lithium ion battery of assembly process and can accomplish the case surface light as before, almost do not have scratch.Simple, the easy row of method.
Description of drawings
Figure 1 shows that to be used for aluminum hull lithium ion battery face shaping orthographic drawing mobile phone, that pasted protective film, Fig. 1-the 1st wherein, front view, Fig. 1-2 are vertical views, Fig. 1-the 3rd, right view.
Embodiment
Be described further below in conjunction with the most preferred embodiment shown in the accompanying drawing: the inventive method as shown in Figure 1, comprises step
1. before battery case is dropped into assembling line, for the surface of the described shell of each piece all attaches one deck protective film;
2. finish the coiling of pole piece, welding every operation of blocking a shot, blocking a shot and changing into, and after shaping, sealing, the film of tearing and attaching promptly is the battery that a described case surface does not have scoring trace.
Described protective film can be low density polyethylene (LDPE) (LDPE) film, or polyvinyl chloride (PVC) film, or Merlon (PC) film.
The applicant once in production practices, each lithium ion battery that is 043048A with 10,000 models, the pasting protective film and paste on the aluminum hull surface and do test under the situation of diaphragm and contrast not on the aluminum hull surface, statistics is as follows:
| The operation title | The aluminum hull surface is pasting protective film not | Aluminum hull surface pasting protective film |
| The dress shell | 1300 scratch | Diaphragm does not break |
| The weldering block | 800 scratch | Diaphragm does not break |
| The lid block | 1200 scratch | Diaphragm does not break |
| Change into | 720 scratch | Diaphragm does not break |
| Shaping is sealed | 3400 scratch | There is 1 diaphragm to break |
| Add up to | 7420, account for 74.2% | 1 diaphragm breaks, and accounts for 0.01% |
Facts have proved that the inventive method is used to protect the aluminum shell of lithium ion battery to prevent scratch, is effective.
Claims (4)
1. a method that prevents that battery case is impaired aborning is characterized in that: comprise the steps:
1. before battery case is dropped into assembling line, for the surface of the described shell of each piece all attaches one deck protective film;
2. finish the coiling of pole piece, welding every operation of blocking a shot, blocking a shot and changing into, and after shaping, sealing, the film of tearing and attaching promptly is the battery that a described case surface does not have scoring trace.
2. according to the described a kind of method that prevents that battery case is impaired aborning of claim 1, it is characterized in that:
Described protective film is a low-density polyethylene film.
3. according to the described a kind of method that prevents that battery case is impaired aborning of claim 1, it is characterized in that:
Described protective film is a polyvinyl chloride film.
4. according to the described a kind of method that prevents that battery case is impaired aborning of claim 1, it is characterized in that:
Described protective film is a polycarbonate film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100277580A CN100413117C (en) | 2004-06-16 | 2004-06-16 | Method for preventing cell housing from damage in production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100277580A CN100413117C (en) | 2004-06-16 | 2004-06-16 | Method for preventing cell housing from damage in production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1710728A CN1710728A (en) | 2005-12-21 |
| CN100413117C true CN100413117C (en) | 2008-08-20 |
Family
ID=35706933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100277580A Active CN100413117C (en) | 2004-06-16 | 2004-06-16 | Method for preventing cell housing from damage in production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100413117C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438125C (en) * | 2005-12-23 | 2008-11-26 | 比亚迪股份有限公司 | Welding method for lid and shell mouth of top welding lithium ion battery |
| CN100466361C (en) * | 2006-12-12 | 2009-03-04 | 天津力神电池股份有限公司 | Improved method for production process of cylindrical lithiumion battery and special assembling |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030148160A1 (en) * | 2002-02-04 | 2003-08-07 | Korea Institute Of Energy Research | Anode-supported tubular solid oxide fuel cell stack and method of fabricating the same |
| JP2003288909A (en) * | 2002-03-28 | 2003-10-10 | Mitsubishi Plastics Ind Ltd | Separator for fuel cell and its manufacturing method |
| US6682773B2 (en) * | 1999-07-02 | 2004-01-27 | Ppg Industries Ohio, Inc. | Light-transmitting and/or coated article with removable protective coating and methods of making the same |
-
2004
- 2004-06-16 CN CNB2004100277580A patent/CN100413117C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6682773B2 (en) * | 1999-07-02 | 2004-01-27 | Ppg Industries Ohio, Inc. | Light-transmitting and/or coated article with removable protective coating and methods of making the same |
| US20030148160A1 (en) * | 2002-02-04 | 2003-08-07 | Korea Institute Of Energy Research | Anode-supported tubular solid oxide fuel cell stack and method of fabricating the same |
| JP2003288909A (en) * | 2002-03-28 | 2003-10-10 | Mitsubishi Plastics Ind Ltd | Separator for fuel cell and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1710728A (en) | 2005-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Inner Mongolia zkenergy Technology Energy Co. Ltd. Assignor: Xiongtao Power Source Science &. Technology Co., Ltd., Shenzhen Contract record no.: 2010990000358 Denomination of invention: Method for preventing cell housing from damage in production Granted publication date: 20080820 License type: Exclusive License Open date: 20051221 Record date: 20100608 |
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| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN XIONGTAO POWER TECHNOLOGY CO., LTD. Free format text: FORMER NAME: XIONGTAO POWER SOURCE SCIENCE +. TECHNOLOGY CO., LTD., SHENZHEN |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518120 Longgang District, Guangdong, Shenzhen Da Pengzhen Room 301, office building, Fu Fu Industrial Zone Patentee after: Shenzhen Center Power Tech Co., Ltd. Address before: 518120 Longgang District, Guangdong, Shenzhen Da Pengzhen Room 301, office building, Fu Fu Industrial Zone Patentee before: Xiongtao Power Source Science &. Technology Co., Ltd., Shenzhen |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Inner Mongolia zkenergy Technology Energy Co. Ltd. Assignor: Xiongtao Power Source Science &. Technology Co., Ltd., Shenzhen Contract record no.: 2010990000358 Date of cancellation: 20110801 |