CN102403471A - Method for manufacturing cover plate of lithium-ion battery - Google Patents
Method for manufacturing cover plate of lithium-ion battery Download PDFInfo
- Publication number
- CN102403471A CN102403471A CN2011103659939A CN201110365993A CN102403471A CN 102403471 A CN102403471 A CN 102403471A CN 2011103659939 A CN2011103659939 A CN 2011103659939A CN 201110365993 A CN201110365993 A CN 201110365993A CN 102403471 A CN102403471 A CN 102403471A
- Authority
- CN
- China
- Prior art keywords
- cover plate
- cylindrical shell
- spring
- tube body
- holes
- 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.)
- Pending
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000003792 electrolyte Substances 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims abstract description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- 239000010962 carbon steel Substances 0.000 claims abstract description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 206010016766 flatulence Diseases 0.000 abstract description 2
- 239000002313 adhesive film Substances 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N Acetylene Chemical compound C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a method for manufacturing a cover plate of a lithium-ion battery, which comprises the following steps: drilling two holes on the periphery of an ordinary cover plate, wherein the two holes can be arranged in a diagonal line, in parallel on one side or on opposite sides; manufacturing a gas diversion tube, wherein the upper part and the lower part of the gas diversion tube are communicated, the bottom edge of a tube body extends inwards but is not butted, a baffle is arranged on the bottom edge of the tube body and is clamped at the bottom of the tube body, a spring is welded on the baffle, and the surface of the tube body is coated with an elastic adhesive film free from reaction with electrolyte; and welding the top part of the tube body of the gas diversion tube and one end of the spring in a box on the cover plate under one hole through laser. The spring is made of a carbon steel wire material, the tube body is made of an aluminum material and is shaped like a trapezoid, and the two holes are arranged diagonally. When the method is adopted to manufacture the cover plate, the manufacturing process can be fundamentally prevented from interference of the external environmental humidity, and water generated in the process can be prevented from entering in the battery to cause flatulence and other unfavorable factors affecting the battery performance.
Description
Technical field
The present invention relates to a kind of technical field of lithium ion, specifically is a kind of manufacturing approach that is used for the cover plate of lithium ion battery.
Background technology
Lithium ion battery is when adopting the opening chemical synthesis technology; Utilize perforate on the cover plate and rubberizing to discharge the gas that produces when changing into; Change into and finish to seal afterwards steel ball; But there is certain defective in this kind method: when only relying on one deck rubberizing not guarantee to change into fully external environment not with the inside battery convection current; And the gas that produces when changing into must be discharged through aperture, can not guarantee not have fully extraneous air-flow to get into inside battery when changing into, and the moisture that air-flow is brought into can cause fatal influence to battery performance.
Content of the present invention
The present invention provides a kind of manufacturing approach that is used for the cover plate of lithium ion battery, overcomes the influence of the lithium ion battery moisture team battery performance that extraneous air-flow is brought into when opening changes into.
Technical scheme of the present invention is following:
A kind of manufacturing approach that is used for the cover plate of lithium ion battery is characterized in that: include following steps:
(1), with opening two holes around the cover plate, the position in two holes can be diagonally opposing corner, a parallel side or become offside;
(2), make a gas flow guiding tube; All be communicated with up and down, the cylindrical shell bottom sides is not docked along extending to the inside, and the cylindrical shell bottom sides is along being placed with baffle plate and being stuck in the cylindrical shell bottom; Welding one spring on the baffle plate, drum surface apply not the elasticity gluing agent film that reacts with electrolyte;
(3), weld spring one end in gas flow guiding tube cylindrical shell top and the box on the cover board the below in a hole therein.
Said spring selects for use the carbon steel wire material to process, and said cylindrical shell aluminium prepared material is processed, and said cylindrical shell is a trapezoidal shape.
Said two holes become diagonally opposing corner.
Be used to inject electrolyte at one of them aperture of cover plate, seal steel ball immediately after injection finishes; Welding gas guide shell below another aperture utilizes the gas change into generation to cause the battery external and internal pressure poor, and the existence of pressure differential promotes the spring jack-up cylindrical shell bottom baffle that makes progress; Spring should guarantee to respond to the pressure inequality that minimum gas causes; Gas is discharged through the cylindrical shell bottom port, and when the gas output finishes, external and internal pressure is consistent; Baffle plate moves down, and avoids extraneous air-flow to bring moisture into and gets into.
Beneficial effect of the present invention:
The cover plate that adopts this method to make can fundamentally guarantee not receive in the formation process interference of external environment humidity, and the moisture of avoiding this operation to cause gets into, and generation flatulence etc. influences the unfavorable factor of battery performance.
Description of drawings
Fig. 1 is the cover plate vertical view.
Fig. 2 is a gas flow guiding tube end view.
Embodiment
Referring to Fig. 1, Fig. 2, a kind of manufacturing approach that is used for the cover plate of lithium ion battery includes following steps:
(1), the position of opening 1,2, two holes 1,2, two holes around the cover plate is become diagonally opposing corner;
(2), make a gas flow guiding tube, cylindrical shell 3 aluminium prepared materials are processed, cylindrical shell 3 is a trapezoidal shape; All be communicated with up and down; Cylindrical shell 3 bottom sides are extended and are not docked along 4 bendings to the inside, and cylindrical shell 3 bottoms connect and are placed with baffle plate 5 on the edge 4 and are stuck in cylindrical shell 3 bottoms, welding one spring 6 on the baffle plate 5; The elasticity gluing agent film that cylindrical shell 3 surface-coated do not react with electrolyte, spring 6 selects for use the carbon steel wire material to process;
(3), below one of them hole of cover plate, adopt Laser Welding on the cover board with cylindrical shell 3 tops of gas flow guiding tube and the welding of spring 6 one ends in the box.
Claims (3)
1. manufacturing approach that is used for the cover plate of lithium ion battery is characterized in that: include following steps:
(1), with opening two holes around the cover plate, the position in two holes can be diagonally opposing corner, a parallel side or become offside;
(2), make a gas flow guiding tube; All be communicated with up and down, the cylindrical shell bottom sides is not docked along extending to the inside, and the cylindrical shell bottom sides is along being placed with baffle plate and being stuck in the cylindrical shell bottom; Welding one spring on the baffle plate, drum surface apply not the elasticity gluing agent film that reacts with electrolyte;
(3), weld spring one end in gas flow guiding tube cylindrical shell top and the box on the cover board the below in a hole therein.
2. a kind of manufacturing approach that is used for lithium ion battery cover board as claimed in claim 1 is characterized in that: said spring selects for use the carbon steel wire material to process, and said cylindrical shell aluminium prepared material is processed, and said cylindrical shell is a trapezoidal shape.
3. a kind of manufacturing approach that is used for lithium ion battery cover board as claimed in claim 1 is characterized in that: said two holes become diagonally opposing corner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103659939A CN102403471A (en) | 2011-11-18 | 2011-11-18 | Method for manufacturing cover plate of lithium-ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103659939A CN102403471A (en) | 2011-11-18 | 2011-11-18 | Method for manufacturing cover plate of lithium-ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102403471A true CN102403471A (en) | 2012-04-04 |
Family
ID=45885456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103659939A Pending CN102403471A (en) | 2011-11-18 | 2011-11-18 | Method for manufacturing cover plate of lithium-ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102403471A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1745495A (en) * | 2003-01-31 | 2006-03-08 | 株式会社汤浅 | Sealed alkaline storage battery, electrode structure thereof, charging method and charger for sealed alkaline storage battery |
| CN102208581A (en) * | 2010-03-30 | 2011-10-05 | 深圳市比克电池有限公司 | Pressure-releasing device, lithium ion cell and electric vehicle |
-
2011
- 2011-11-18 CN CN2011103659939A patent/CN102403471A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1745495A (en) * | 2003-01-31 | 2006-03-08 | 株式会社汤浅 | Sealed alkaline storage battery, electrode structure thereof, charging method and charger for sealed alkaline storage battery |
| CN102208581A (en) * | 2010-03-30 | 2011-10-05 | 深圳市比克电池有限公司 | Pressure-releasing device, lithium ion cell and electric vehicle |
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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 | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 230000 Yaohai Industrial Park, Anhui, Hefei 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: Gotion High-tech Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: HEFEI GUOXUAN HIGH-TECH POWER ENERGY CO., LTD. TO: HEFEI GUOXUAN HIGH-TECH POWER ENERGY CO., LTD. |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120404 |