CN108987621A - A kind of connection structure of great-capacity power battery top cover - Google Patents
A kind of connection structure of great-capacity power battery top cover Download PDFInfo
- Publication number
- CN108987621A CN108987621A CN201810592533.1A CN201810592533A CN108987621A CN 108987621 A CN108987621 A CN 108987621A CN 201810592533 A CN201810592533 A CN 201810592533A CN 108987621 A CN108987621 A CN 108987621A
- Authority
- CN
- China
- Prior art keywords
- top cover
- cover substrate
- positive
- cathode
- rivet
- 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
- 239000000758 substrate Substances 0.000 claims abstract description 29
- 238000003825 pressing Methods 0.000 claims abstract description 15
- 238000004880 explosion Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses a kind of connection structures of great-capacity power battery top cover, including top cover substrate, positive stop frame, cathode stop frame, positive rivet sequentially passes through sealing ring, positive stop frame, the rivet hole of top cover substrate, rotation stop piece and positive pressing plate and mutually rivets fixation, cathode rivet sequentially passes through sealing ring, cathode stop frame, the rivet hole of top cover substrate, negative insulation plate and cathode pressing plate and mutually rivets fixation, explosion rupture disk is installed on the explosionproof hole of top cover substrate, eduction valve is installed on the overflow hole of top cover substrate.A possibility that present invention makes top cover substrate internal resistance change reduction, improves the overall performance of battery, and positive and negative electrode stop frame improves cover board yield.
Description
Technical field
The present invention relates to dynamic lithium battery fields, particularly belong to a kind of connection structure of great-capacity power battery top cover.
Background technique
With the development of China's lithium ion industry, for demanding strict technology for battery cap, and battery battery core holds now
Amount becomes big, higher and higher for top cover requirement, in order to promote the stability of cap structure and the safety of lithium battery entirety
Type and stability, it is necessary to which the structure of top cover is improved.
Summary of the invention
The object of the present invention is to provide a kind of stability and safety are high, and promote the high-capacity dynamical electricity of assembly yield
The connection structure of pond top cover.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention:
A kind of connection structure of great-capacity power battery top cover, including top cover substrate, positive stop frame, cathode stop frame, anode
Rivet sequentially passes through sealing ring, positive stop frame, the rivet hole of top cover substrate, rotation stop piece and positive pressing plate and mutually rivets fixation, bears
Pole rivet sequentially passes through sealing ring, cathode stop frame, the rivet hole of top cover substrate, negative insulation plate and mutually rivets admittedly with cathode pressing plate
It is fixed, explosion rupture disk is installed on the explosionproof hole of top cover substrate, eduction valve is installed on the overflow hole of top cover substrate.
The explosion rupture disk, eduction valve are respectively welded and are fixedly connected on top cover substrate.
The top cover substrate central bottom welds reinforcing rib, and the material of reinforcing rib is aluminium alloy.
It is respectively adopted between cathode pressing plate between positive pressing plate, at the top of cathode rivet at the top of the positive rivet sharp
Luminous point weldering connection.
Beneficial effects of the present invention are as follows:
The present invention passes through to be respectively adopted a little between cathode pressing plate between positive pressing plate, at the top of cathode rivet at the top of positive rivet
A possibility that weldering connects, and top cover substrate internal resistance is made to change reduction, improves the overall performance of battery, positive and negative electrode stop frame
Cover board yield is improved, is welded with the impact that reinforcing rib resists battery core membrane structure explosion-proof for top cover substrate among top cover base plate bottom,
Under certain air pressure, explosion rupture disk or eduction valve are opened, and are improved cell safety type, are improved electric car security performance, can
To be applied to the manufacturing of lithium ion battery.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is decomposition diagram of the invention.
Fig. 2 is assembling schematic diagram of the invention.
Specific embodiment
Referring to attached drawing, a kind of connection structure of great-capacity power battery top cover, including top cover substrate 1, positive stop frame 2,
Cathode stop frame 3, positive rivet 4 sequentially pass through sealing ring 5, positive stop frame 2, the rivet hole 6 of top cover substrate 1, rotation stop piece 7 with
Positive 8 phase of pressing plate riveting is fixed, and cathode rivet 9 sequentially passes through the rivet hole of sealing ring 10, cathode stop frame 3, top cover substrate 1
12, negative insulation plate 17 is riveted with 18 phase of cathode pressing plate and is fixed, and is equipped with explosion rupture disk 15 on the explosionproof hole 14 of top cover substrate 1, is pushed up
Eduction valve 11 is installed on the overflow hole 16 of cover substrate 1；Explosion rupture disk 15, eduction valve 11, which are respectively welded, is fixedly connected on top cover substrate
On 1；1 central bottom of top cover substrate welds reinforcing rib 13, and the material of reinforcing rib 13 is aluminium alloy；Positive 4 top of rivet and anode
Laser spot welding connection is respectively adopted between pressing plate 8, between 9 top of cathode rivet and cathode pressing plate 18.
The embodiments of the present invention described above are not intended to limit the scope of the present invention.It is any in the present invention
Spirit and principle within made modifications, equivalent substitutions and improvements etc., should be included in claim protection model of the invention
Within enclosing.
Claims (4)
1. a kind of connection structure of great-capacity power battery top cover, including top cover substrate, positive stop frame, cathode stop frame,
It is characterized in that, positive rivet sequentially passes through sealing ring, positive stop frame, the rivet hole of top cover substrate, rotation stop piece and positive pressing plate
Mutually riveting is fixed, and cathode rivet sequentially passes through sealing ring, cathode stop frame, the rivet hole of top cover substrate, negative insulation plate and bears
Extreme pressure plate mutually rivets fixation, and explosion rupture disk is equipped on the explosionproof hole of top cover substrate, is equipped with aerial drainage on the overflow hole of top cover substrate
Valve.
2. the connection structure of great-capacity power battery top cover according to claim 1, which is characterized in that the explosion rupture disk,
Eduction valve, which is respectively welded, to be fixedly connected on top cover substrate.
3. the connection structure of great-capacity power battery top cover according to claim 1, which is characterized in that the top cover substrate
Central bottom welds reinforcing rib, and the material of reinforcing rib is aluminium alloy.
4. the connection structure of great-capacity power battery top cover according to claim 1, which is characterized in that the positive rivet
Laser spot welding connection is respectively adopted between top and positive pressing plate, at the top of cathode rivet between cathode pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810592533.1A CN108987621A (en) | 2018-06-11 | 2018-06-11 | A kind of connection structure of great-capacity power battery top cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810592533.1A CN108987621A (en) | 2018-06-11 | 2018-06-11 | A kind of connection structure of great-capacity power battery top cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108987621A true CN108987621A (en) | 2018-12-11 |
Family
ID=64540128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810592533.1A Pending CN108987621A (en) | 2018-06-11 | 2018-06-11 | A kind of connection structure of great-capacity power battery top cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108987621A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638181A (en) * | 2018-11-14 | 2019-04-16 | 庐江力翔电池科技有限责任公司 | A kind of VDA ternary battery square structure top cover |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299172A (en) * | 2016-09-30 | 2017-01-04 | 合肥力翔电池科技有限责任公司 | A kind of lithium ion battery cover board |
| US20170222209A1 (en) * | 2012-07-17 | 2017-08-03 | Sanyo Electric Co., Ltd. | Sealing plate for prismatic secondary battery and prismatic secondary battery using the sealing plate |
| CN207183329U (en) * | 2017-07-28 | 2018-04-03 | 深圳市欣迪盟新能源科技股份有限公司 | Battery cover board and battery |
-
2018
- 2018-06-11 CN CN201810592533.1A patent/CN108987621A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170222209A1 (en) * | 2012-07-17 | 2017-08-03 | Sanyo Electric Co., Ltd. | Sealing plate for prismatic secondary battery and prismatic secondary battery using the sealing plate |
| CN106299172A (en) * | 2016-09-30 | 2017-01-04 | 合肥力翔电池科技有限责任公司 | A kind of lithium ion battery cover board |
| CN207183329U (en) * | 2017-07-28 | 2018-04-03 | 深圳市欣迪盟新能源科技股份有限公司 | Battery cover board and battery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638181A (en) * | 2018-11-14 | 2019-04-16 | 庐江力翔电池科技有限责任公司 | A kind of VDA ternary battery square structure top cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181211 |
|
| RJ01 | Rejection of invention patent application after publication |