CN202259471U - Cover plate structure of lithium ion battery - Google Patents
Cover plate structure of lithium ion battery Download PDFInfo
- Publication number
- CN202259471U CN202259471U CN2011203418270U CN201120341827U CN202259471U CN 202259471 U CN202259471 U CN 202259471U CN 2011203418270 U CN2011203418270 U CN 2011203418270U CN 201120341827 U CN201120341827 U CN 201120341827U CN 202259471 U CN202259471 U CN 202259471U
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- plate structure
- cover plate
- cover board
- 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.)
- Expired - Fee Related
Links
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
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- Secondary Cells (AREA)
Abstract
The utility model relates to the technical field of a lithium ion battery, in particular to a cover plate structure of the lithium ion battery. The cover plate structure comprises a cover plate body, wherein a positioning concave frame is stamped at the corresponding position where an aluminum-nickel cladding strip needs to be spot-welded. The adoption of the cover plate structure of the lithium ion battery, the positioning problem in the process of the spot welding of the aluminum-nickel cladding strip can be solved, thereby avoiding phenomena of offset and inaccurate positioning of the aluminum-nickel cladding strip, improving the working efficiency, and reducing the production cost and the potential safety hazards in the application process of the lithium ion battery.
Description
Technical field:
The utility model relates to technical field of lithium ion, relates in particular to a kind of covering plate structure of lithium ion battery.
Background technology:
Advantages such as lithium ion battery has that voltage height, electricity capacity are big, long circulation life, memory-less effect, light weight, working range are wide; Existing market is increasingly high to the performance and the capacity requirement of lithium ion battery, and PACK produces and cooperates requirement also increasingly high to battery.In the prior art; As shown in Figure 1; When lithium ion battery is produced at PACK; Electricity coring circuit plate needs on the cover board face to carry out aluminium nickel composite band (label 4 among Fig. 1) spot welding to connect, and particularly the injection moulding battery requires strict more for the side-play amount that the deviation and the aluminium nickel composite band of aluminium nickel composite band position (label 3 among Fig. 1) occupy cover plate length center line.Owing on the production line aluminium nickel composite band is carried out manual work location or machine location; Make aluminium nickel composite band skew in various degree occur and squint irregular; Cause the finished product battery baffle locating bias, the effective solder joint minimizing of link position when PACK produces, to occur, be prone to problems such as loosening, form great potential safety hazard.
The utility model content:
The purpose of the utility model is to provide to the deficiency of prior art a kind of covering plate structure of lithium ion battery; Orientation problem in the time of can solving spot welding aluminium nickel composite band; Avoid aluminium nickel composite band the inaccurate phenomenon of skew and location to occur; Improve operating efficiency, reduce production costs and reduce lithium battery potential safety hazard in use.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of covering plate structure of lithium ion battery, it comprises cover board body, said cover board body has the recessed frame in location in the relevant position punch forming of need spot welding aluminium nickel composite band.
The cross central line of the recessed frame in said location aligns with the transverse center line overlap of cover board body.
The recessed frame in said location is square recessed frame.
Said cover board body also offers liquid injection hole.
The utility model beneficial effect is:
The covering plate structure of the described a kind of lithium ion battery of the utility model, it comprises cover board body, said cover board body has the recessed frame in location in the relevant position punch forming of need spot welding aluminium nickel composite band.Cover plate is when tack-weld aluminium nickel composite band; Aluminium nickel composite band is in the recessed frame in location; When operation, need not artificial location, the orientation problem in the time of can solving spot welding aluminium nickel composite band avoids aluminium nickel composite band the inaccurate phenomenon of skew and location to occur; Improve operating efficiency, reduce production costs and reduce lithium battery potential safety hazard in use.
Description of drawings:
Accompanying drawing 1 is the structure of cover plate sketch map of prior art;
Accompanying drawing 2 is structural representations of the utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described:
As shown in Figure 2; The covering plate structure of the said a kind of lithium ion battery of the utility model; Its structure is: it comprises cover board body 5, and cover board body 5 offers liquid injection hole 1, and said cover board body 5 has the recessed frame 2 in location in the relevant position punch forming of need spot welding aluminium nickel composite band.Further, the cross central line of the recessed frame 2 in said location aligns with the transverse center line overlap of cover board body 5, promptly locatees recessed frame 2 centered.Preferably, the recessed frame 2 in said location is square recessed frame, is complementary with aluminium nickel composite band.
The utility model does not have the prior art cover plate structure of the recessed frame in location; Be improved to cover board body 5 structure of locating recessed frame 2 is set in the position of spot welding aluminium nickel composite band; It is located recessed frame 2 and uses professional punch press to go out groove downwards, and the location vestige that occurs below the 0.1mm gets final product, and cover sheet thickness is constant.Lithium ion battery cover board after the improvement; Need not artificial setting-out location in the time of can making in cover board body 5 relevant positions location aluminium nickel composite band; Directly place aluminium nickel composite band in the recessed frame 2 in location, aluminium nickel is with again on cover board body 5 length center lines and is still kept center condition, and the aluminium nickel composite band position of some postwelding does not have any skew; Make baffle and cover board body 5 link positions not have skew; The effectively solder joint requirement that maintains the standard, effectively solved operation deviation, be prone to loosening phenomenon, thereby further promoted the operating efficiency of this operation and reduced battery potential safety hazard in use.
The above only is the preferred embodiments of the utility model, so all equivalences of doing according to the described structure of the utility model patent claim, characteristic and principle change or modify, includes in the utility model patent claim.
Claims (4)
1. the covering plate structure of a lithium ion battery, it comprises cover board body (5), it is characterized in that: said cover board body (5) has location recessed frame (2) in the relevant position punch forming of need spot welding aluminium nickel composite band.
2. the covering plate structure of a kind of lithium ion battery according to claim 1, it is characterized in that: the cross central line of the recessed frame in said location (2) aligns with the transverse center line overlap of cover board body (5).
3. the covering plate structure of a kind of lithium ion battery according to claim 2, it is characterized in that: the recessed frame in said location (2) is square recessed frame.
4. the covering plate structure of a kind of lithium ion battery according to claim 3, it is characterized in that: said cover board body (5) also offers liquid injection hole (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203418270U CN202259471U (en) | 2011-09-14 | 2011-09-14 | Cover plate structure of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203418270U CN202259471U (en) | 2011-09-14 | 2011-09-14 | Cover plate structure of lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202259471U true CN202259471U (en) | 2012-05-30 |
Family
ID=46120667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203418270U Expired - Fee Related CN202259471U (en) | 2011-09-14 | 2011-09-14 | Cover plate structure of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202259471U (en) |
-
2011
- 2011-09-14 CN CN2011203418270U patent/CN202259471U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140914 |
|
| EXPY | Termination of patent right or utility model |