CN206401375U - A kind of cover board structure of lithium battery - Google Patents
A kind of cover board structure of lithium battery Download PDFInfo
- Publication number
- CN206401375U CN206401375U CN201621267025.9U CN201621267025U CN206401375U CN 206401375 U CN206401375 U CN 206401375U CN 201621267025 U CN201621267025 U CN 201621267025U CN 206401375 U CN206401375 U CN 206401375U
- Authority
- CN
- China
- Prior art keywords
- ceramic
- seal ring
- groove
- lithium battery
- 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
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Classifications
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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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- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
A kind of cover board structure of lithium battery, including cover plate plate body and positive terminal, negative terminal, the positive terminal and negative terminal are connected by ceramic-seal ring with cover plate plate body respectively.It is provided with the cover plate plate body in the pilot hole being provided with the groove for assembling ceramic sealing ring, the groove for assembling positive terminal or negative terminal, the groove and is additionally provided with positive stop lug boss, the positive stop lug boss is arranged on around pilot hole.The bottom of the ceramic-seal ring is provided with the clearance position for avoiding positive stop lug boss.Positioning hole is provided with the ceramic-seal ring, the positioning hole is located at the centre of clearance position.The top end face and bottom end face of the ceramic-seal ring are respectively arranged with metal layer.Certain spacing is kept between the outer wall and groove of the ceramic-seal ring.The cross section of the groove is triangular in shape, square, circular, oval or it is combined.The utility model has the characteristics of connecting firm, accurate positioning, high production efficiency.
Description
Technical field
The utility model is related to a kind of cover board structure of lithium battery, is related to cell art.
Background technology
The sealing means overwhelming majority of existing cover plate of power lithium is using organic material sealing, such as PFA, fluorubber
Deng also some batteries are used as encapsulant using ceramics.By using organic sealing material or glass capsulation, lid is enhanced
The sealing property of plate, can bear bigger cell internal pressure without leakage.But organic sealing material is in use,
Long-term to bear compression and high temperature, meeting ageing hardening, the possibility become fragile cause sealing to fail, can cause battery at pole end
Place's leakage, reduces the service life of battery.
In order to solve the problem of organic sealing material is likely to result in long process, lithium battery cover plate sealing is using pottery
Porcelain is sealed.Such as in the utility model patent of Chinese patent 201320540794.1, disclosed ceramic seal component is used
Oxide ceramics or nitride ceramics, are handled by surface metalation, then are welded with cover plate, reach electrode column sealing effect.
Found by studying, its structure has the following disadvantages：, it is necessary to do localization tool in ceramics, pole and cover plate welding process, and
And pole and cover plate are welded simultaneously, easily there is solder drift, be easily caused cover plate and pole short circuit；Secondly, pole and cover plate
Between lack anti-torsion screens design, in use, it is excessive to there is torsion, causes ceramics secretly to split, and can produce pole leakage wind
Danger.
In the utility model patent of Chinese patent 201320767933.4, disclosed ceramic-seal ring and battery cover board group
In part, disclose electrode column sealing and realized using welding for china with metal mode.During its structure and use, find in the presence of as follows
It is not enough：Pole and cover plate use split type, and ceramics, disk and pole were carried out by welding manner before this, then were swashed with cover plate
Photocoagulation, causes process to increase, cost increase；Secondly, increase laser welding, increase detection, increase by one is potential hidden
Suffer from link.
Utility model content
The purpose of this utility model, which is aimed to provide, a kind of connects the high lithium battery cover plate of firm, accurate positioning, production efficiency
Structure, to overcome weak point of the prior art.
A kind of cover board structure of lithium battery designed by this purpose, including cover plate plate body and positive terminal, negative terminal, its structure are special
Levy is that the positive terminal and negative terminal are connected by ceramic-seal ring with cover plate plate body respectively.
Further, it is provided with the groove for assembling ceramic sealing ring, the groove and is provided with the cover plate plate body
Positive stop lug boss or detent are additionally provided with pilot hole for assembling positive terminal or negative terminal, the groove, it is described spacing
Boss or detent are arranged on around pilot hole.
Further, the bottom of the ceramic-seal ring is provided with the clearance position for avoiding positive stop lug boss；Or, the pottery
The bottom of porcelain sealing ring is provided with the positioning boss for being inserted into detent.
Further, positioning hole is provided with the ceramic-seal ring, the positioning hole is coaxially set with pilot hole.
Further, the top end face and bottom end face of the ceramic-seal ring are respectively arranged with metal layer.
Further, the width of the clearance position is 0.5~3mm；Or, the width of positioning boss is 0.5~3mm.
Further, the width of the positive stop lug boss is 0.5~3mm；Or, the width of detent is 0.5~3mm.
Further, certain spacing is kept between the outer wall and groove of the ceramic-seal ring.
Further, the section of the positive stop lug boss is curved or trapezoidal, square.
Further, the cross section of the groove is triangular in shape, square, circular, oval or it is combined.
Positive terminal and negative terminal in the utility model are connected by ceramic-seal ring with cover plate plate body respectively, during assembling,
Efficient and convenient, accurate positioning.
It is provided with the groove for assembling ceramic sealing ring, the groove and also sets on cover plate plate body in the utility model
Be equipped with positive stop lug boss or detent, so as to welding when position ceramic-seal ring, it is to avoid during welding positive terminal or
Negative terminal produces eccentric, bonding strength and the accuracy of positioning between raising positive terminal or negative terminal and cover plate plate body.
The cross section of groove in the utility model is triangular in shape, square, circular, oval or it is combined, and can improve
Anti-torsion ability during assembling or use, improves the security of product.
The utility model is respectively arranged with metal layer in the top end face and bottom end face of ceramic-seal ring, so as to
Improve electric conductivity.
In summary, the utility model has the characteristics of connecting firm, accurate positioning, high production efficiency.
Brief description of the drawings
Fig. 1 is the decomposition texture schematic diagram of the embodiment of the utility model one.
Fig. 2 is the schematic front view after the utility model is assembled.
Fig. 3 is A-A in Fig. 2 to biopsy cavity marker devices schematic diagram.
Fig. 4 is Fig. 2 rearview.
Fig. 5 is enlarged diagram at the B in Fig. 3.
Fig. 6 is enlarged diagram at the C in Fig. 3.
In figure：1 is cover plate plate body, and 1.1 be battery fluid added holes, and 1.2 be anti-riot hole, and 1.3 be groove, and 1.4 be pilot hole,
2 be positive terminal, and 3 be negative terminal, and 4 be the first ceramic-seal ring, and 4.1 be positioning hole, and 5 be the second ceramic-seal ring, and 6 be limit convex
Platform, 7 be clearance position.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model.
Referring to Fig. 1-Fig. 6, this cover board structure of lithium battery, including cover plate plate body 1 and positive terminal 2, negative terminal 3, the positive pole
Post 2 and negative terminal 3 are connected by ceramic-seal ring with the sealing of cover plate plate body 1 respectively.
In the present embodiment, the groove 1.3 for assembling ceramic sealing ring is provided with the cover plate plate body 1, it is described recessed
It is provided with groove 1.3 in the pilot hole 1.4 for assembling positive terminal 2 or negative terminal 3, the groove 1.3 and is additionally provided with limit convex
Platform 6 or detent, the positive stop lug boss 6 or detent are arranged on around pilot hole 1.4.
, can be directly stamping by groove on cover plate plate body 1 during making, can be with groove stamping process
Positive stop lug boss 6 or detent are shaped together simultaneously, so as to greatly improve operating efficiency.
The bottom of the ceramic-seal ring is provided with the clearance position 7 for avoiding positive stop lug boss 6.Or, the ceramics are close
The bottom of seal ring is provided with the positioning boss for being inserted into detent.
Positioning hole 4.1 is provided with the ceramic-seal ring, the positioning hole 4.1 is coaxially set with pilot hole 1.4.
The top end face and bottom end face of the ceramic-seal ring are respectively arranged with metal layer.
The width of the clearance position 7 is 0.5~3mm；Or, the width of positioning boss is 0.5~3mm.
The width of the positive stop lug boss 6 is 0.5~3mm；Or, the width of detent is 0.5~3mm.
Certain spacing is kept between the outer wall and groove 1.3 of the ceramic-seal ring.
The section of the positive stop lug boss 6 is curved or trapezoidal, square.
The cross section of the groove 1.3 is triangular in shape, square, circular, oval or it is combined.It is square including square and
Rectangle.Cross section of the cross section of first ceramic-seal ring 4 and the second ceramic-seal ring 5 respectively with groove 1.3 is correspondingly arranged.
For the cross section of groove 1.3 it is triangular in shape, square, circular, oval or its combination understanding should be：Example
Such as, when a rectangle and a square composite is in the cross section of groove 1.3, T-shaped is just turned into；It is transversal when groove 1.3
When face is two rectangle combinations, just turn into cross；When five triangle combinations is in the cross section of groove 1.3, just turn into
Regular or irregular pentagon；When six triangle combinations is in the cross section of groove 1.3, just turn into regular or irregular
Hexagon, etc..Certainly, in T-shaped, cross, pentagon or hexagon more than, when recombinant is circular or oval, just
Constitute other combining structures.
In the present embodiment, ceramic-seal ring includes the first ceramic-seal ring 4 and the second ceramic-seal ring 5, first pottery
Porcelain sealing ring 4 is identical with the structure of the second ceramic-seal ring 5.
The section difference of positive terminal 2 and negative terminal 3 is T-shaped.
During specific assembling, the first ceramic-seal ring 4 and the second ceramic-seal ring 5 are individually positioned in cover plate plate body 1 first
Groove in, then positive terminal 2 through the first ceramic-seal ring 4 positioning hole 4.1 and cover plate plate body 1 pilot hole 1.4, together
Sample assembles negative terminal 3, is finally welded at a suitable temperature.
General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the utility model spirit and scope are not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (9)
1. a kind of cover board structure of lithium battery, including cover plate plate body（1）And positive terminal（2）, negative terminal（3）, it is characterized in that it is described just
Pole（2）And negative terminal（3）Pass through ceramic-seal ring and cover plate plate body respectively（1）Connect；The cover plate plate body（1）On be provided with
Groove for assembling ceramic sealing ring（1.3）, the groove（1.3）Inside it is provided with for assembling positive terminal（2）Or negative terminal
（3）Pilot hole（1.4）, the groove（1.3）Inside it is additionally provided with positive stop lug boss（6）Or detent, the positive stop lug boss（6）
Or detent is arranged on pilot hole（1.4）Around.
2. cover board structure of lithium battery according to claim 1, it is characterized in that the bottom of the ceramic-seal ring is provided with use
In avoidance positive stop lug boss（6）Clearance position（7）；Or, the bottom of the ceramic-seal ring is provided with recessed for being inserted into positioning
Positioning boss in groove.
3. cover board structure of lithium battery according to claim 2, it is characterized in that being provided with positioning hole on the ceramic-seal ring
（4.1）, the positioning hole（4.1）With pilot hole（1.4）It is coaxially set.
4. cover board structure of lithium battery according to claim 2, it is characterized in that the top end face of the ceramic-seal ring and bottom
End surface is respectively arranged with metal layer.
5. cover board structure of lithium battery according to claim 2, it is characterized in that the clearance position（7）Width for 0.5~
3mm；Or, the width of positioning boss is 0.5~3mm.
6. cover board structure of lithium battery according to claim 1, it is characterized in that the positive stop lug boss（6）Width for 0.5~
3mm；Or, the width of detent is 0.5~3mm.
7. cover board structure of lithium battery according to claim 1, it is characterized in that the outer wall and groove of the ceramic-seal ring
（1.3）Between keep certain spacing.
8. cover board structure of lithium battery according to claim 1, it is characterized in that the positive stop lug boss（6）Section it is curved or
It is trapezoidal, square.
9. according to any described cover board structure of lithium battery of claim 1 to 8, it is characterized in that the groove（1.3）Cross section
Triangular in shape, square, circular, oval or its combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621267025.9U CN206401375U (en) | 2016-11-24 | 2016-11-24 | A kind of cover board structure of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621267025.9U CN206401375U (en) | 2016-11-24 | 2016-11-24 | A kind of cover board structure of lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206401375U true CN206401375U (en) | 2017-08-11 |
Family
ID=59509236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621267025.9U Expired - Fee Related CN206401375U (en) | 2016-11-24 | 2016-11-24 | A kind of cover board structure of lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206401375U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108428921A (en) * | 2018-02-01 | 2018-08-21 | 宁德时代新能源科技股份有限公司 | Secondary battery |
| WO2023108329A1 (en) * | 2021-12-13 | 2023-06-22 | Inventus Power, Inc. | Battery pack |
-
2016
- 2016-11-24 CN CN201621267025.9U patent/CN206401375U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108428921A (en) * | 2018-02-01 | 2018-08-21 | 宁德时代新能源科技股份有限公司 | Secondary battery |
| US11831028B2 (en) | 2018-02-01 | 2023-11-28 | Contemporary Amperex Technology Co., Limited | Secondary battery |
| WO2023108329A1 (en) * | 2021-12-13 | 2023-06-22 | Inventus Power, Inc. | Battery pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20201124 |