CN108565363A - A kind of secondary cell head cover and secondary cell - Google Patents
A kind of secondary cell head cover and secondary cell Download PDFInfo
- Publication number
- CN108565363A CN108565363A CN201810650605.3A CN201810650605A CN108565363A CN 108565363 A CN108565363 A CN 108565363A CN 201810650605 A CN201810650605 A CN 201810650605A CN 108565363 A CN108565363 A CN 108565363A
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- China
- Prior art keywords
- pole
- secondary cell
- short circuit
- explosion
- head cover
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- 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.)
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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 of a single cell or a single battery
- H01M50/147—Lids or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/598—Guarantee labels
-
- 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 invention discloses a kind of secondary cell head covers, including explosion-proof valve and external short circuit attachment device；The explosion-proof valve includes burst disk and the first insulating trip, and first insulating trip includes main part and protruding portion；The external short circuit attachment device includes conductive connecting piece, the second insulating trip, resiliency deformable member and conducting boss；The conductive connecting piece and conducting boss are separated insulation by second insulating trip, the resiliency deformable member includes fixed part and movable part, the fixed part is set in the connection sheet, the movable part is correspondingly arranged with the conducting boss, and by the protrusion used outside insulated, to far from conducting boss direction flexible deformation.The present invention provides a kind of secondary cell head cover, pressure that can not only be inside timely, effective leakage cell, and can timely trigger battery and external short circuit occurs, it prevents battery from occurring the phenomenon that thermal runaway under high temperature environment, improves the safety of battery entirety.
Description
Technical field
The invention belongs to battery technology fields, and in particular to a kind of secondary cell head cover and secondary cell.
Background technology
Lithium ion battery is widely used in consumption electronic product, new due to the advantages such as energy density is high, has extended cycle life
The fields such as energy automobile and energy storage.Requirement with practical application to energy density is constantly promoted, and more energy density is big but hot
The poor material of stability enters commercial batteries system, and the security performance of lithium ion battery faces huge challenge.
In general, battery by improper use, such as overcharges, short circuit or when being exposed under hot environment,
Battery is since internal-response is also easy to produce bulk gas and heat, or even internal short-circuit occurs and cause thermal runaway.In order to reduce in battery
Harm caused by portion's high pressure, it will usually install explosion-proof valve in battery cap, explosion-proof valve occurs when air pressure inside reaches certain value
Pressure release.However after battery pressure release, inside still have very high energy, if external high temperature environment can not be changed, in battery
Vigorous reaction and combustion explosion may still occur for the high energy capacity material in portion, cause not expected harm.
It is existing based on pressure activated external short circuit to reduce the design of thermal runaway probability, such as CN207038570U, it is outer short
The pressure of road triggering is certainly less than explosion-proof valve vent pressure.Since electrolyte decomposition gas production is big under hot environment, it is easy to cause
Bulk gas is already generated in the case of no internal short-circuit risk, internal pressure is caused to reach the external short circuit trigger value of setting.And it is outer
Positive and negative anodes electrical connection instead results in internal temperature rise acceleration after short circuit triggering, increases risk.If can design in pressure release or pressure release
After external short circuit occurs, be just avoided that external short circuit triggers in advance, can during persistently overheating to reduce internal high energy capacity material
It can be endangered caused by internal short-circuit.
Invention content
In order to solve the deficiencies in the prior art, the present invention provides a kind of secondary cell head cover, can not only in time, have
Pressure inside the leakage cell of effect, and can timely trigger battery and external short circuit occurs, prevent battery from going out under high temperature environment
The phenomenon that existing thermal runaway, improve the safety of battery entirety.
Institute of the invention technique effect to be achieved is realized by following scheme：
Secondary cell head cover in the present invention, including explosion-proof valve and external short circuit attachment device；The explosion-proof valve include burst disk and
First insulating trip, first insulating trip include main part and protruding portion, and the main part is set in the burst disk, described prominent
Go out portion and protrude from the burst disk, extends to external short circuit attachment device direction；The external short circuit attachment device includes conduction
Connection sheet, the second insulating trip, resiliency deformable member and conducting boss；Second insulating trip is by the conductive connecting piece and conductive stud
Platform separates insulation, and the resiliency deformable member includes fixed part and movable part, and the fixed part is set in the connection sheet, the work
Dynamic portion is correspondingly arranged with the conducting boss, and by the protrusion used outside insulated, is become to far from conducting boss direction elasticity
Shape.
The explosion-proof valve is used for the pressure release of inside battery；The external short circuit attachment device is detached from battery for explosion-proof valve pressure release
Afterwards, the anode and cathode of battery core are connected to, promote battery occur short circuit, avoid battery work on cause thermal runaway the phenomenon that.
Further, further include coping plate, the first pole and the second pole；The coping plate offers pole column hole, explosion-proof
Valve opening and liquid injection hole；The pole column hole is set to the coping plate both ends, and the explosion-proof valve opening is set in the middle part of the coping plate, institute
Liquid injection hole is stated to be set between the explosion-proof valve and the first pole or the second pole；First pole is located therein a pole column hole
Above, it is electrically connected with the conductive connecting piece, and passes through third insulating trip and coping plate separation insulation；Second pole is set
It is electrically connected on another pole column hole, by coping plate with the conducting boss.
The coping plate is used for the installation and fixation of pole, explosion-proof valve and external short circuit attachment device, is seal-installed on simultaneously
On battery case, it to be used for the installation and sealing of battery entirety；First pole and the second pole for inside battery battery core with
The conduction of external circuit and connection；The pole column hole is used for the installation and fixation of first pole and the second pole；It is described anti-
Quick-fried valve opening is used for the installation and fixation of the explosion-proof valve；The liquid injection hole is for injecting electrolyte into battery case.
The burst disk and main part are integrated, when cell internal pressure raising, when reaching the pressure release value of setting, by described
Coping plate is detached from the leakage for cell internal pressure；The protruding portion is connected with main part, described when normal battery operation
Protruding portion is set between the movable part and conducting boss, so that movable part and conducting boss is separated insulation, is ensured the normal of battery
Work.When cell internal pressure increases, when reaching the pressure release value of setting, the burst disk and main part are let out by coping plate disengaging
Pressure, the protruding portion are detached from coping plate together with the burst disk and main part, and the movable part is elastic to conducting boss direction
Deformation, movable part and conducting boss contact are conductive, cause the first pole being electrically connected with movable part and are electrically connected with conducting boss
The connection of the second pole it is conductive, to be connected to the anode and cathode of battery core, promote battery that short circuit occurs, avoid battery in high temperature ring
Work on the phenomenon that causing thermal runaway under border.When inside battery aerogenesis pressure has reached setting pressure release value, inside is in shakiness
Determine state, internal short-circuit may occur at any time, the possibility of internal short-circuit generation can be reduced and in pressure release by triggering external short circuit at this time
External short circuit is connected in the case of temperature release in afterwards, avoids heating up too fast.
To advanced optimize structure, the explosion-proof valve and external short circuit attachment device can be set to the coping plate top side or bottom
Side.
Further, the external short circuit attachment device is set between first pole or the second pole and explosion-proof valve.
To advanced optimize structure, the conducting boss can be integrally molded so as an element with coping plate or as independent entry
Part is set on coping plate, and the independent component is metalwork or resistive element with resistance value, convenient for consumption electric energy fever, to real
Heat dissipation when existing external short circuit triggering.
Further, the conducting boss is equipped with magnet, is acted on the magnetic of resiliency deformable member using magnet, makes elasticity
The movable part of deformable member is in close contact with conducting boss, ensures the compactness of external short circuit connection.
Further, the size of the protruding portion is more than contact size with the conducting boss, by the movable part with
Conducting boss separates insulation completely, and the movable part is effectively avoided surprisingly to be contacted in normal battery operation with conducting boss,
Trigger external short circuit device；The length of the protruding portion is less than the length of the main part, for the 1/10-1/9 of main body length, just
When explosion-proof valve sprays, effectively the protruding portion is extracted out between conducting boss and the movable part of resiliency deformable member.
Further, the material of first insulating trip is the resistance to height for including polytetrafluoroethylene (PTFE), polyimides or polyamide
Warm flexible insulating material；Not only there is good corrosion resistance and insulating properties, but also there is good tensile strength.
Further, the resiliency deformable member is marmem material, and the marmem is Au-Cd, Ag-
Cd、Cu-Zn、Cu-Zn-Al、Cu-Zn-Sn、Cu-Zn-Si、Cu –Sn、Cu-Zn-Ga、In-Ti、Au-Cu-Zn、Ni-Al、Fe-
Pt, Ti-Ni, Ti-Ni-Pd, Ti-Nb, U-Nb or Fe-Mn-Si；The resiliency deformable member is under the counter-active effect of the protruding portion
It deforms, separates with conducting boss and insulate, after the protruding portion is extracted out, the movable part of resiliency deformable member is returned to rapidly change
Shape before shape is in close contact with conducting boss, to be connected to conduction, realizes electrical connection.
A kind of secondary cell, including shell, battery core and any description above secondary cell head cover, the shell and secondary electricity
Pond head cover is installed, fixes and is protected for battery core, and the battery core is set to enclosure interior, the secondary cell top seal installation
In on shell, the positive plate or negative plate of the bottom and battery core of the first pole and the second pole are electrically connected.
The secondary cell head cover of the present invention has the following advantages：
1, external short circuit device external short circuit triggering before, all separated by insulating part, and the movable part of resiliency deformable member with lead
Electric boss has chucking power under memory effect and the super-elasticity effect of resiliency deformable member, to the protruding portion of the first insulating part, can
It effectively avoids secondary cell during transport, use or external short circuit device caused by other reasons surprisingly triggers phenomenon, greatly
Reduce the probability that external short circuit device surprisingly triggers greatly.
2, the connecting element of external short circuit device be resiliency deformable member, can the first insulating trip protruding portion extraction after, rapidly with
Conducting boss contact is conductive, ensure that the stability and timeliness of the triggering of external short circuit device.
3, external short circuit device is that triggering starting point triggers rapidly external short circuit after explosion-proof valve ejection with explosion-proof valve ejection, is led to
The combination of explosion-proof valve and external short circuit device is crossed, hot mistake can not be terminated after pressure release under high temperature environment by effectively avoiding secondary cell
The phenomenon that control, reduces the probability of secondary cell thermal runaway under hot environment.
4, secondary cell head cover of the invention tries hard to play the maximum internal pressure ability to bear of battery, avoids outer in advance short
Road solves secondary cell under high temperature environment after effective pressure release, the security risk that internal high energy capacity material is brought, after avoiding pressure release
Thermal runaway harm.
Description of the drawings
Fig. 1 is the cross-sectional view of secondary cell head cover in the present invention；
Fig. 2 is the overlooking structure diagram of secondary cell head cover in the present invention；
Fig. 3 is the cross-sectional view of another structure of secondary cell head cover in the present invention.
The reference numerals are as follows：
10, coping plate；11, pole column hole；12, explosion-proof valve opening；13, liquid injection hole；14, third insulating trip；20, the first pole；30,
Two poles；40, explosion-proof valve；41, the first insulating trip；411, main part；412, protruding portion；42, burst disk；50, external short circuit connects
Device；51, conductive connecting piece；52, the second insulating trip；53, resiliency deformable member；531, fixed part；532, movable part；54, conductive
Boss.
Specific implementation mode
The present invention will be described in detail with reference to the accompanying drawings and examples.
As illustrated in the accompanying drawings from 1 to 3, including explosion-proof valve 40 connects secondary cell head cover in the embodiment of the present invention with external short circuit
Device 50；Explosion-proof valve includes burst disk 42 and the first insulating trip 41, and the first insulating trip includes main part 411 and protruding portion 412, master
Body portion is set in burst disk, and protruding portion protrudes from burst disk, is extended to external short circuit attachment device direction.External short circuit attachment device packet
Include conductive connecting piece 51, the second insulating trip 52, resiliency deformable member 53 and conducting boss 54；Second insulating trip by conductive connecting piece and
Conducting boss separates insulation, and resiliency deformable member includes fixed part 531 and movable part 532, and fixed part is set in connection sheet, movable part
It is correspondingly arranged with conducting boss, and by protrusion used outside insulated, to far from conducting boss direction flexible deformation.
Further include coping plate 10, the first pole 20 and the second pole 30；Coping plate offers pole column hole 11, explosion-proof valve opening 12
With liquid injection hole 13；Pole column hole is set to coping plate both ends, and explosion-proof valve opening is set in the middle part of coping plate, and liquid injection hole is set to explosion-proof valve and the
Between one pole or the second pole；First pole is located therein on a pole column hole, is electrically connected with conductive connecting piece, and passes through
Three insulating trips 14 separate with coping plate to insulate；Second pole is set on another pole column hole, is electrically connected by coping plate and conducting boss
It connects.
Explosion-proof valve is used for the pressure release of inside battery；After external short circuit attachment device is detached from battery for explosion-proof valve pressure release, connection
The anode and cathode of battery core, promote battery occur short circuit, avoid battery work on cause thermal runaway the phenomenon that.Coping plate is used for
The installation and fixation of pole, explosion-proof valve and external short circuit device, while being seal-installed on battery case, it is used for the peace of battery entirety
Dress and sealing；First pole and the second pole are used for conduction and the connection of inside battery battery core and external circuit；Pole column hole is used for
The installation and fixation of first pole and the second pole；Explosion-proof valve opening is used for the installation and fixation of explosion-proof valve；Liquid injection hole is used for electricity
Electrolyte is injected in the shell of pond.Explosion-proof valve and external short circuit attachment device can be set to coping plate top side or bottom side.External short circuit connection dress
It is arranged between the first pole or the second pole and explosion-proof valve.
Burst disk and main part are integrated, and when cell internal pressure raising, when reaching the pressure release value of setting, are taken off by coping plate
From the leakage for cell internal pressure；Protruding portion is connected with main part, and when normal battery operation, protruding portion is set to movable part
Between conducting boss, so that movable part and conducting boss is separated insulation, ensure the normal work of battery.When cell internal pressure liter
Height, when reaching the pressure release value of setting, burst disk and main part are detached from pressure release by coping plate, and protruding portion is with burst disk and main part one
With coping plate is detached from, for movable part to conducting boss direction flexible deformation, movable part and conducting boss contact are conductive, cause and activity
First pole of portion's electrical connection and the second pole connection being electrically connected with conducting boss are conductive, to be connected to the positive and negative of battery core
Pole, promote battery occur short circuit, avoid battery work under high temperature environment cause thermal runaway the phenomenon that.When inside battery produces
When air pressure has reached setting pressure release value, inside plays pendulum, and internal short-circuit may occur at any time, has triggered external short circuit both at this time
The possibility of internal short-circuit generation can be reduced, and external short circuit can be connected in the case of interior temperature release after pressure release, avoid heating up too fast.
Conducting boss 54 can be integrally molded so as an element with coping plate or is set on coping plate as independent component, independent
Element is metalwork or resistive element with resistance value, convenient for consumption electric energy fever, to realize heat dissipation when external short circuit triggering.It leads
Electric boss is equipped with magnet, is acted on the magnetic of resiliency deformable member using magnet, makes the movable part and conductive stud of resiliency deformable member
Platform is in close contact, and ensures the compactness of external short circuit connection.The size of protruding portion is more than the contact size with conducting boss, will be movable
Portion separates insulation completely with conducting boss, and movable part is effectively avoided surprisingly to be contacted in normal battery operation with conducting boss,
Trigger external short circuit device；The length of protruding portion is less than the length of main part, for the 1/10-1/9 of main body length, is convenient for explosion-proof valve
When ejection, effectively protruding portion is extracted out between conducting boss and the movable part of resiliency deformable member.
The material of first insulating trip 41 is the high-temperature flexible insulation material for including polytetrafluoroethylene (PTFE), polyimides or polyamide
Material；Not only there is good corrosion resistance and insulating properties, but also there is good tensile strength.Resiliency deformable member is shape memory
Alloy material, marmem Au-Cd, Ag-Cd, Cu-Zn, Cu-Zn-Al, Cu-Zn-Sn, Cu-Zn-Si, Cu-Sn,
Cu-Zn-Ga, In-Ti, Au-Cu-Zn, Ni-Al, Fe-Pt, Ti-Ni, Ti-Ni-Pd, Ti-Nb, U-Nb or Fe-Mn-Si；Elasticity
Deformable member deforms under the counter-active effect of protruding portion, separates with conducting boss and insulate, after protruding portion is extracted out, flexible deformation
The movable part of part is returned to rapidly the shape before deformation, is in close contact with conducting boss, to be connected to conduction, realizes electrical connection.
A kind of secondary cell, including shell, battery core and any of the above secondary cell head cover, shell and secondary cell head cover are used
Installing, fix and protecting in battery core, battery core are set to enclosure interior, and secondary cell top seal is installed on shell, the first pole
The positive plate or negative plate of the bottom and battery core of column and the second pole are electrically connected.
Secondary cell head cover in the embodiment of the present invention is to trigger the starting point of battery short circuit with explosion-proof valve ejection,
After explosion-proof valve sprays, the resiliency deformable member of external short circuit device can be after the extraction of the first insulating trip protruding portion, rapidly and conducting boss
Contact is conductive, triggers battery external short circuit, not only ensure that the stability and timeliness of the triggering of external short circuit device, but also by explosion-proof
The combination of valve and external short circuit device, showing for thermal runaway can not be terminated after pressure release under high temperature environment by effectively avoiding secondary cell
As reducing the probability of secondary cell thermal runaway under hot environment.
In addition, external short circuit device is all separated by insulating part, and the activity of resiliency deformable member before external short circuit triggering
Portion under memory effect and the super-elasticity effect of resiliency deformable member, has clamping with conducting boss to the protruding portion of the first insulating part
Power, can effectively avoid secondary cell during transport, use or external short circuit device caused by other reasons surprisingly triggers now
As greatly reducing the probability that external short circuit device surprisingly triggers.
Can be seen that from the scheme of above-described embodiment the present invention provides a kind of secondary cell head cover, can not only in time, have
Pressure inside the leakage cell of effect, and can timely trigger battery and external short circuit occurs, prevent battery from going out under high temperature environment
The phenomenon that existing thermal runaway, improve the safety of battery entirety.
Finally, it should be noted that above example be only to illustrate the embodiment of the present invention technical solution rather than to its into
Row limitation, although the embodiment of the present invention is described in detail with reference to preferred embodiment, those skilled in the art
It should be understood that the technical solution of the embodiment of the present invention can be still modified or replaced equivalently, and these are changed or wait
The range of modified technical solution disengaging technical solution of the embodiment of the present invention cannot also be made with replacement.
Claims (10)
1. a kind of secondary cell head cover, it is characterised in that：Including explosion-proof valve and external short circuit attachment device；
The explosion-proof valve includes burst disk and the first insulating trip, and first insulating trip includes main part and protruding portion；
The external short circuit attachment device includes conductive connecting piece, the second insulating trip, resiliency deformable member and conducting boss；Described second
The conductive connecting piece and conducting boss are separated insulation by insulating trip, and the resiliency deformable member includes fixed part and movable part, institute
Fixed part is stated in the connection sheet, the movable part is correspondingly arranged with the conducting boss, and passes through the protrusion
Used outside insulated, to far from conducting boss direction flexible deformation.
2. secondary cell head cover as described in claim 1, it is characterised in that：Further include coping plate, the first pole and the second pole；
The coping plate offers pole column hole, explosion-proof valve opening and liquid injection hole；The pole column hole is set to the coping plate both ends, institute
Explosion-proof valve opening is stated in the middle part of the coping plate, the liquid injection hole be set to the explosion-proof valve and the first pole or the second pole it
Between；
First pole is located therein on a pole column hole, is electrically connected with the conductive connecting piece, and passes through third insulating trip
Separate with the coping plate and insulate；Second pole is set on another pole column hole, by coping plate and conducting boss electricity
Connection.
3. secondary cell head cover as claimed in claim 2, it is characterised in that：The explosion-proof valve and external short circuit attachment device can be set to
The coping plate top side or bottom side.
4. secondary cell head cover as claimed in claim 2, it is characterised in that：The external short circuit attachment device is set to first pole
Between column or the second pole and explosion-proof valve.
5. secondary cell head cover as claimed in claim 2, it is characterised in that：The conducting boss can be integrally molded so as with coping plate
One element is set to as independent component on coping plate, and the independent component is metalwork or resistive element with resistance value.
6. secondary cell head cover as described in claim 1, it is characterised in that：The conducting boss is equipped with magnet.
7. secondary cell head cover as described in claim 1, it is characterised in that：The size of the protruding portion is more than and the conductive stud
The contact size of platform, length is less than the length of the main part, for the 1/10-1/9 of main body length.
8. secondary cell head cover as described in claim 1, it is characterised in that：The material of first insulating trip be include polytetrafluoro
The high-temperature flexible insulating materials of ethylene, polyimides or polyamide.
9. secondary cell head cover as described in claim 1, it is characterised in that：The resiliency deformable member is marmem material
Matter, the marmem are Au-Cd, Ag-Cd, Cu-Zn, Cu-Zn-Al, Cu-Zn-Sn, Cu-Zn-Si, Cu-Sn, Cu-
Zn-Ga, In-Ti, Au-Cu-Zn, Ni-Al, Fe-Pt, Ti-Ni, Ti-Ni-Pd, Ti-Nb, U-Nb or Fe-Mn-Si.
10. a kind of secondary cell, it is characterised in that：Including shell, battery core and secondary electricity described in any one of claim 1-9
Pond head cover；The battery core is set to enclosure interior, and the secondary cell top seal is installed on shell, the first pole and the second pole
The bottom of column and the positive plate of battery core or negative plate are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810650605.3A CN108565363A (en) | 2018-06-22 | 2018-06-22 | A kind of secondary cell head cover and secondary cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810650605.3A CN108565363A (en) | 2018-06-22 | 2018-06-22 | A kind of secondary cell head cover and secondary cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108565363A true CN108565363A (en) | 2018-09-21 |
Family
ID=63554202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810650605.3A Pending CN108565363A (en) | 2018-06-22 | 2018-06-22 | A kind of secondary cell head cover and secondary cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108565363A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328368A (en) * | 2019-06-21 | 2019-10-15 | 延安速源节能科技有限公司 | A kind of preparation method of porous Ti-Nb marmem |
| CN110707262A (en) * | 2019-08-13 | 2020-01-17 | 力赛凡科技有限公司 | Explosion-proof ventilation valve of power battery and battery system using same |
| CN111490223A (en) * | 2020-04-01 | 2020-08-04 | 北京理工大学 | Method and device for inducing short circuit in power battery by magnetic heat |
| CN113646960A (en) * | 2020-06-18 | 2021-11-12 | 东莞新能安科技有限公司 | Battery pack and electric vehicle |
| CN115020880A (en) * | 2022-06-23 | 2022-09-06 | 江苏正力新能电池技术有限公司 | Battery top cap and battery |
| WO2023208215A1 (en) * | 2022-04-29 | 2023-11-02 | 江苏天合储能有限公司 | Secondary battery top cover and secondary battery |
-
2018
- 2018-06-22 CN CN201810650605.3A patent/CN108565363A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328368A (en) * | 2019-06-21 | 2019-10-15 | 延安速源节能科技有限公司 | A kind of preparation method of porous Ti-Nb marmem |
| CN110707262A (en) * | 2019-08-13 | 2020-01-17 | 力赛凡科技有限公司 | Explosion-proof ventilation valve of power battery and battery system using same |
| CN111490223A (en) * | 2020-04-01 | 2020-08-04 | 北京理工大学 | Method and device for inducing short circuit in power battery by magnetic heat |
| CN113646960A (en) * | 2020-06-18 | 2021-11-12 | 东莞新能安科技有限公司 | Battery pack and electric vehicle |
| WO2023208215A1 (en) * | 2022-04-29 | 2023-11-02 | 江苏天合储能有限公司 | Secondary battery top cover and secondary battery |
| CN115020880A (en) * | 2022-06-23 | 2022-09-06 | 江苏正力新能电池技术有限公司 | Battery top cap and battery |
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