CN203631651U - Current cut-off device and aluminum-shell lithium ion battery with same - Google Patents
Current cut-off device and aluminum-shell lithium ion battery with same Download PDFInfo
- Publication number
- CN203631651U CN203631651U CN201320646029.8U CN201320646029U CN203631651U CN 203631651 U CN203631651 U CN 203631651U CN 201320646029 U CN201320646029 U CN 201320646029U CN 203631651 U CN203631651 U CN 203631651U
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- battery
- ion battery
- aluminum shell
- orifice plate
- 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 - Lifetime
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 25
- 229910052782 aluminium Inorganic materials 0.000 claims description 25
- 238000010008 shearing Methods 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 abstract 5
- 230000007306 turnover Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005476 soldering 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
Abstract
The utility model discloses a current cut-off device and an aluminum-shell lithium ion battery with the same. The current cut-off device of the aluminum-shell lithium ion battery comprises a pore plate with a through hole and a turnover plate, wherein the positive electrode of the battery is electrically connected with the pore plate; the turnover plate is electrically connected with a battery cover plate, is arranged on the pore plate and is of a structure with a downwards sunken middle part, and the sunken part is electrically connected with the pore plate, and is not electrically connected with the pore plate by upwards turning over when the internal gas pressure of the battery borne on the sunken part reaches a threshold value, so that the service security of the battery is ensured.
Description
Technical field
The utility model relates to battery, particularly relates to a kind of lithium ion battery with aluminum shell electric current shearing device and has the lithium ion battery with aluminum shell of this device.
Background technology
Aluminum-shell lithium battery, due to its good characteristic, accepted gradually, and fast development is got up by market.But there is the unsafe problems such as battery explosion in aluminum-shell battery in the situation such as over-charging of battery or short circuit.Existing aluminum-shell battery lacks effective safety device, a kind of scheme is that CID combination plate and Aluminum cover are linked together as failure of current device by seal welding, but there are some defects in this way, because be not connected between its top cover and Aluminum cover, easily there is top cover activity, cause internal resistance of cell drift, also cannot resist battery vibrations, in battery vibrations process, easily snap.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of lithium ion battery with aluminum shell electric current shearing device is provided and has the lithium ion battery with aluminum shell of this device, effectively improves the security performance of battery.
For achieving the above object, the utility model is by the following technical solutions:
A kind of lithium ion battery with aluminum shell electric current shearing device, comprise the orifice plate and the rotating sheet that have through hole, anode is electrically connected described orifice plate, described rotating sheet electrical connection battery cover board, described rotating sheet is arranged on described orifice plate, described rotating sheet be middle part to the structure of lower recess, recessed part forms and be electrically connected with described orifice plate, and the inside battery air pressure being subject at it can upwards overturn while reaching threshold value and be electrically connected with described orifice plate disengaging.
Between described rotating sheet and described battery cover board, be connected with laser seal welding.
On described battery cover board, be connected with a nickel alloy brace with Welding.
On described battery cover board, have groove, described nickel alloy brace is arranged in described groove.
Peripheral edge margin pad between described orifice plate and described rotating sheet is provided with one deck insulated ring.
Described orifice plate and described rotating sheet are aluminum alloy material.
A kind of lithium ion battery with aluminum shell, comprises battery cover board, also comprises above-mentioned lithium ion battery with aluminum shell electric current shearing device.
Described battery cover board is overall stamping forming aluminium alloy cover plate.
Useful technique effect of the present utility model:
According to failure of current device of the present utility model, middle part is connected with anode by orifice plate to the rotating sheet of lower recess, battery is under the state overcharging, inside battery is pressed in can sharply generating heat and producing, rotating sheet upwards upset under the effect of pressure in the time that pressure reaches certain value, thereby disconnection is connected with orifice plate, inside battery is opened circuit, cut off charging current, avoid over-charging of battery or short circuit, avoid battery explosion, therefore, failure of current device of the present utility model can effectively be guaranteed the security performance of lithium ion battery with aluminum shell.
Between rotating sheet and battery cover board, adopt laser seal welding, guarantee that battery seals completely.
In groove on battery cover board, soldering has the brace of nickel material, facilitates the brace welding operation of the resistance welding technology of follow-up making battery pack.
Adopt overall stamping forming aluminium plate, possess good compression resistance and impact resistance, can effectively prevent that the impulsive force of outside batteries is for the destruction of cover plate.
Brief description of the drawings
Fig. 1 is the generalized section of a kind of embodiment of the utility model lithium ion battery with aluminum shell electric current shearing device.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.Should be emphasized that, following explanation is only exemplary, instead of in order to limit scope of the present utility model and application thereof.
Consult Fig. 1, in some embodiments, lithium ion battery with aluminum shell comprises the orifice plate 5 and the rotating sheet 2 that have through hole with electric current shearing device, anode is electrically connected described orifice plate 5, described rotating sheet 2 is electrically connected battery cover board 1, described rotating sheet 2 is arranged on described orifice plate 5, described rotating sheet 2 is the structure of middle part to lower recess, recessed part keeps being electrically connected with described orifice plate 5 under normal circumstances, and recessed part can upwards be overturn and be departed from and be electrically connected with described orifice plate 5 in the time that the inside battery air pressure being subject to reaches threshold value.
In preferred embodiment, between described rotating sheet 2 and described battery cover board 1, be connected with laser seal welding.
In preferred embodiment, on described battery cover board 1, be connected with a nickel alloy brace 3 with Welding.
More preferably, on described battery cover board 1, have groove, described nickel alloy 3 braces are arranged in described groove.
In preferred embodiment, the peripheral edge margin pad between described orifice plate 5 and described rotating sheet 2 is provided with one deck insulated ring 4.
In preferred embodiment, described orifice plate and described rotating sheet are aluminum alloy material.
Consult Fig. 1, in some embodiments, lithium ion battery with aluminum shell comprises the lithium ion battery with aluminum shell of battery cover board 1 and above-mentioned any embodiment electric current shearing device.
In preferred embodiment, described battery cover board 1 is overall stamping forming aluminium alloy cover plate.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (8)
1. a lithium ion battery with aluminum shell electric current shearing device, it is characterized in that, comprise the orifice plate and the rotating sheet that have through hole, anode is electrically connected described orifice plate, described rotating sheet electrical connection battery cover board, described rotating sheet is arranged on described orifice plate, and described rotating sheet is the structure of middle part to lower recess, recessed part forms and be electrically connected with described orifice plate, and the inside battery air pressure being subject at it can upwards overturn while reaching threshold value and be electrically connected with described orifice plate disengaging.
2. lithium ion battery with aluminum shell as claimed in claim 1 electric current shearing device, is characterized in that, between described rotating sheet and described battery cover board, is connected with laser seal welding.
3. lithium ion battery with aluminum shell as claimed in claim 1 electric current shearing device, is characterized in that, is connected with a nickel alloy brace with Welding on described battery cover board.
4. lithium ion battery with aluminum shell as claimed in claim 3 electric current shearing device, is characterized in that, on described battery cover board, has groove, and described nickel alloy brace is arranged in described groove.
5. the lithium ion battery with aluminum shell electric current shearing device as described in claim 1 to 4 any one, is characterized in that, the peripheral edge margin pad between described orifice plate and described rotating sheet is provided with one deck insulated ring.
6. the lithium ion battery with aluminum shell electric current shearing device as described in claim 1 to 4 any one, is characterized in that, described orifice plate and described rotating sheet are aluminum alloy material.
7. a lithium ion battery with aluminum shell, comprises battery cover board, it is characterized in that, also comprises the lithium ion battery with aluminum shell electric current shearing device as described in claim 1 to 6 any one.
8. lithium ion battery with aluminum shell as claimed in claim 7, is characterized in that, described battery cover board is overall stamping forming aluminium alloy cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320646029.8U CN203631651U (en) | 2013-10-18 | 2013-10-18 | Current cut-off device and aluminum-shell lithium ion battery with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320646029.8U CN203631651U (en) | 2013-10-18 | 2013-10-18 | Current cut-off device and aluminum-shell lithium ion battery with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203631651U true CN203631651U (en) | 2014-06-04 |
Family
ID=50818100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320646029.8U Expired - Lifetime CN203631651U (en) | 2013-10-18 | 2013-10-18 | Current cut-off device and aluminum-shell lithium ion battery with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203631651U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299170A (en) * | 2016-07-28 | 2017-01-04 | 宁波震裕科技股份有限公司 | Integrated explosion-proof roll-over valve on automobile lithium battery top cover |
| JP6177395B1 (en) * | 2016-06-07 | 2017-08-09 | 寧徳時代新能源科技股▲分▼有限公司 | Power battery head cover and power battery |
| CN107275562A (en) * | 2017-08-08 | 2017-10-20 | 珠海格力电器股份有限公司 | Battery and its covering plate structure |
| JP6218900B1 (en) * | 2016-06-07 | 2017-10-25 | 寧徳時代新能源科技股▲分▼有限公司 | Power battery head cover and power battery |
| JP2017220442A (en) * | 2016-06-07 | 2017-12-14 | 寧徳時代新能源科技股▲分▼有限公司 | Head cover of power battery and power battery |
| JP2017220441A (en) * | 2016-06-07 | 2017-12-14 | 寧徳時代新能源科技股▲分▼有限公司 | Head cover of power battery and power battery |
-
2013
- 2013-10-18 CN CN201320646029.8U patent/CN203631651U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6177395B1 (en) * | 2016-06-07 | 2017-08-09 | 寧徳時代新能源科技股▲分▼有限公司 | Power battery head cover and power battery |
| JP6218900B1 (en) * | 2016-06-07 | 2017-10-25 | 寧徳時代新能源科技股▲分▼有限公司 | Power battery head cover and power battery |
| JP2017220440A (en) * | 2016-06-07 | 2017-12-14 | 寧徳時代新能源科技股▲分▼有限公司 | Head cover of power battery and power battery |
| JP2017220442A (en) * | 2016-06-07 | 2017-12-14 | 寧徳時代新能源科技股▲分▼有限公司 | Head cover of power battery and power battery |
| JP2017220441A (en) * | 2016-06-07 | 2017-12-14 | 寧徳時代新能源科技股▲分▼有限公司 | Head cover of power battery and power battery |
| US10418619B2 (en) | 2016-06-07 | 2019-09-17 | Contemporary Amperex Technology Co., Limited | Top cover of power battery and power battery |
| US10516151B2 (en) | 2016-06-07 | 2019-12-24 | Contemporary Amperex Technology Co., Limited | Top cover of power battery and power battery |
| CN106299170A (en) * | 2016-07-28 | 2017-01-04 | 宁波震裕科技股份有限公司 | Integrated explosion-proof roll-over valve on automobile lithium battery top cover |
| CN106299170B (en) * | 2016-07-28 | 2019-02-01 | 宁波震裕科技股份有限公司 | The integrally formed explosion-proof roll-over valve on automobile lithium battery top cover |
| CN107275562A (en) * | 2017-08-08 | 2017-10-20 | 珠海格力电器股份有限公司 | Battery and its covering plate structure |
| WO2019029407A1 (en) * | 2017-08-08 | 2019-02-14 | 格力电器（武汉）有限公司 | Battery and cover plate structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170609 Address after: 518119 Beek Industrial Zone, Kwai Chung street, Dapeng New District, Guangdong, Shenzhen Patentee after: SHENZHEN BAK POWER BATTERY Co.,Ltd. Address before: 300000 6 Huaxin Road, Beichen Science Park, Beichen District, Tianjin Co-patentee before: SHENZHEN BAK BATTERY Co.,Ltd. Patentee before: BAK INTERNATIONAL (TIANJIN) Ltd. |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20191022 Granted publication date: 20140604 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20221022 Granted publication date: 20140604 |
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| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20221022 Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20231018 Granted publication date: 20140604 |