CN106654080A - Novel cylindrical lithium ion battery cover - Google Patents
Novel cylindrical lithium ion battery cover Download PDFInfo
- Publication number
- CN106654080A CN106654080A CN201610981722.9A CN201610981722A CN106654080A CN 106654080 A CN106654080 A CN 106654080A CN 201610981722 A CN201610981722 A CN 201610981722A CN 106654080 A CN106654080 A CN 106654080A
- Authority
- CN
- China
- Prior art keywords
- battery
- battery cover
- fire retardant
- top cover
- sealing ring
- 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
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 30
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000003063 flame retardant Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 238000010891 electric arc Methods 0.000 claims description 6
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 claims description 3
- 150000003014 phosphoric acid esters Chemical group 0.000 claims description 3
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- ZSTLPJLUQNQBDQ-UHFFFAOYSA-N azanylidyne(dihydroxy)-$l^{5}-phosphane Chemical class OP(O)#N ZSTLPJLUQNQBDQ-UHFFFAOYSA-N 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000004224 protection Effects 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 7
- 230000009977 dual effect Effects 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- GKTNLYAAZKKMTQ-UHFFFAOYSA-N n-[bis(dimethylamino)phosphinimyl]-n-methylmethanamine Chemical compound CN(C)P(=N)(N(C)C)N(C)C GKTNLYAAZKKMTQ-UHFFFAOYSA-N 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003860 storage 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
- H01M50/148—Lids or covers characterised by their shape
- H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/183—Sealing members
-
- 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
- H01M50/394—Gas-pervious parts or elements
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
-
- 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
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/581—Devices or arrangements for the interruption of current in response to temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
- H01M2200/103—Fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/20—Pressure-sensitive devices
-
- 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)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses a novel cylindrical lithium ion battery cover. The novel cylindrical lithium ion battery cover comprises a round battery cover main body (1) and a sealing ring (2); the round battery cover main body (1) is embedded into the upper part of the sealing ring (2); a safety diaphragm (4) is embedded in the lower part of the inner side of the sealing ring (2); a sealing top cover (3) is arranged on the upper part of the inner side of the sealing ring (2); a fire retardant filling area (6) is arranged between the safety diaphragm (4) and the sealing top cover (3); a preset fire retardant is introduced into the fire retardant filling area (6). The novel cylindrical lithium ion battery cover is capable of cutting off battery current return circuit in time when battery exceptional situations are caused, blocking battery internal reaction, improving safety performance of cylindrical lithium ion batteries, and reducing the probability of safety failure caused by batteries out of thermos control at extreme conditions, is beneficial for improving market application prospect of the products of battery manufacturers, and possesses important production practical significance.
Description
Technical field
The present invention relates to cell manufacturing techniques field, more particularly to a kind of new cylindrical lithium-ion battery cap.
Background technology
At present, lithium ion battery have the advantages that specific energy is high, recycle often, storage time it is long, not only just
Take as mobile phone, DV and laptop computer are used widely on formula electronic equipment, and be widely used in electricity
In terms of the big-and-middle-sized electrical equipment such as electrical automobile, electric bicycle and electric tool, therefore the performance requirement to lithium ion battery
More and more higher.
Wherein, in the production technology of cylindrical lithium ion battery, battery cover is very important part, should and battery
Sealing effectiveness is played in shell cooperation, is provided simultaneously with power-off and release internal pressure function under abnormal conditions again.The entirety of battery cover
Structure is generally made up of three parts：CID (Current Interrupt Device, breaker device), in abnormal conditions
Lower unlatching, disconnects the current loop of battery cover and inside battery；Vent (gas bleeder valve), for opening in abnormal cases, release
Cell internal pressure；Cap (top cover), for being engaged with gas bleeder valve Vent, discharges inside battery pressure by bleeder port thereon
Power.Although battery cover has been provided with dual safety safeguard function, at some in particular cases, inside battery is due to acutely anti-
The heat burning that should be produced, still cannot effectively be controlled by existing means of defence, be susceptible to thermal runaway situation.
As cylindrical lithium ion battery expands using continuous in terms of electric automobile, battery safety is required to get over
Come higher, therefore, lifting battery cover function of safety protection becomes a kind of development trend.Therefore, at present in the urgent need to developing one
The technology of kind, which can increase more effective protective measure on the basis of the protection of existing dual safety, and which occurs different in battery
Chang Shi, can cut off current loop in time, block the reaction of inside battery, so as to lift the peace of cylindrical lithium ion battery product
Full performance, reduces the probability that Safe Failure occurs due to thermal runaway in battery under extreme conditions.
The content of the invention
In view of this, it is an object of the invention to provide a kind of new cylindrical lithium-ion battery cap, which can be existing
Increase more effective protective measure on the basis of dual safety protection, which can cut off electric current in time when battery occurs abnormal
Loop, blocks the reaction of inside battery, so as to lift the security performance of cylindrical lithium ion battery product, reduces in extreme condition
There is the probability of Safe Failure due to thermal runaway in lower battery, is conducive to improving the market of cell production companies product using front
Scape, is of great practical significance.
For this purpose, the invention provides a kind of new cylindrical lithium-ion battery cap, including circular battery cover body and close
Seal, the battery cover body are embedded in the top of the sealing ring, and the sealing ring lower inside is embedded with blowout disk, institute
The inside upper part for stating sealing ring arranges Packed top cover, has fire retardant fill area between the blowout disk and the top cover
Domain；
Default fire retardant is filled with the fire retardant filling region.
Wherein, the default fire retardant is phosphoric acid ester or phosphazene flame retardant.
Wherein, the default fire retardant includes trimethyl phosphate or triphenyl.
Wherein, weld for electric arc between the top cover and the battery cover body bottom surface.
Wherein, weld for electric arc between the outer circular edge part of the top cover and the battery cover body bottom surface.
Wherein, the bottom surface of the blowout disk is provided with breaker device, and the blowout disk is just being located at the breaker device
Top.
Wherein, the lateral mid-point of the top cover is provided with top cover explosion-protection equipment.
Wherein, the top cover explosion-protection equipment is gas bleeder valve；
The breaker device is pressure relief safety valve.
The technical scheme that the present invention is provided from more than, compared with prior art, the invention provides a kind of new
Cylindrical lithium-ion battery cap, which can increase more effective protective measure on the basis of the protection of existing dual safety, its
When battery occurs abnormal, current loop can be cut off in time, block the reaction of inside battery, so as to lift cylindrical lithium ion
The security performance of battery product, reduces the probability that Safe Failure occurs due to thermal runaway in battery under extreme conditions, is conducive to
The market application foreground of cell production companies product is improved, is of great practical significance.
Description of the drawings
The cross-sectional view of a kind of new cylindrical lithium-ion battery cap that Fig. 1 is provided for the present invention；
After the completion of Fig. 2 is encapsulated with battery container for a kind of cylindrical lithium-ion battery cap that the present invention is provided, cross-section structure shows
It is intended to；
After the completion of Fig. 3 is encapsulated with battery container for a kind of new cylindrical lithium-ion battery cap that the present invention is provided, battery
Internal abnormality is reacted, intrinsic pressure increase, cross-sectional view when breaker device CID disconnects；
After the completion of Fig. 4 is encapsulated with battery container for a kind of new cylindrical lithium-ion battery cap that the present invention is provided, battery
Internal abnormality is reacted, intrinsic pressure increase, and breaker device CID disconnects, the section knot of blowout disk rupture fire retardant inflow inside battery
Structure schematic diagram；
After the completion of Fig. 5 is encapsulated with battery container for a kind of new cylindrical lithium-ion battery cap that the present invention is provided, battery
Internal abnormality is reacted, intrinsic pressure increase, and breaker device CID disconnects, blowout disk rupture fire retardant flows into inside battery, intrinsic pressure lasting
Increase, the cross-sectional view of top cover rupture；
In figure, 1 is battery cover body, and 2 is sealing ring, and 3 is top cover, and 4 is blowout disk, and 5 is breaker device CID, and 6 are resistance
Combustion agent filling region, 7 is top cover explosion-protection equipment, and 8 is battery container, and 9 is to have flowed into the fire retardant region in battery container.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawings with embodiment to this
Invention is described in further detail.
Referring to Fig. 1, the invention provides a kind of new cylindrical lithium-ion battery cap, including circular battery cover body 1
With sealing ring 2, the battery cover body 1 is embedded in the top of the sealing ring 2, and 2 lower inside of the sealing ring is embedded with peace
Full diaphragm 4, the bottom surface of the blowout disk 4 is provided with breaker device (Current Interrupt Device, CID) 5, described
Blowout disk 4 is located at directly over the breaker device (Current Interrupt Device, CID) 5.
Implement, the bottom surface of the breaker device CID 5 is connected with inside lithium ion cell to be mounted is needed.
Implement, the breaker device CID 5 is existing breaker device CID, is specifically as follows in the safety
The upper and lower both sides in bottom surface of diaphragm 4 are respectively arranged with a conductive aluminium flake, and described two conductive aluminium flakes contact, the breaker device
The operation principle of CID 5 is：When the internal temperature exception of battery battery core, as the reasons such as overcharge, short circuit produce a large amount of gases,
When air pressure is constantly raised, the aluminium flake of the bowl-type on the upside of blowout disk bottom surface can be popped up, and disengage with following aluminium flake, from
And the circuit in battery is disconnected immediately, if pressure continues to rise, inside is opened out in the relief valve rupture on blowout disk
Gas discharges internal pressure, it is to avoid hypertonia causes blast.
In the present invention, the inside upper part of the sealing ring 2 arranges Packed top cover 3, the horizontal centre of the top cover 3
Position is provided with top cover explosion-protection equipment 7.
Implement, the top cover explosion-protection equipment 7 can be gas bleeder valve Vent.
In the present invention, there is fire retardant to fill region 6, i.e., described safety between the blowout disk 4 and the top cover 3
Region is filled as fire retardant in space between diaphragm 4 and the top cover 3, filled with default in the fire retardant filling region 6
Fire retardant.
In the present invention, implement, the default fire retardant can be phosphoric acid ester or phosphazene flame retardant,
Trimethyl phosphate or triphenyl can specifically be included.
Implement, referring to Fig. 1, be electric arc welding (i.e. arc between the top cover 3 and 1 bottom surface of battery cover body
Weldering), be electric arc welding preferably between the outer circular edge part of the top cover 3 and the bottom surface of the battery cover body 1, i.e., it is whole
Circle arc-welding.
Referring to Fig. 2, Fig. 3, Fig. 4 and Fig. 5, for the new cylindrical lithium-ion battery cap that the present invention is provided, which is in encapsulation
Cross-sectional view when battery container 8 forms battery is as shown in Figure 2.When inside battery occurs abnormal reaction, battery
Intrinsic pressure increase, breaker device CID 5 disconnects, as shown in Figure 3.Intrinsic pressure when battery persistently increases, and blowout disk 4 ruptures, resistance
In combustion agent filling region 6, the fire retardant of filling passes through the through hole that blowout disk 4 and breaker device CID 5 are formed after disconnecting, and
The inside of battery is flowed into, formation has flowed into the fire retardant region 9 in battery container, so as to prevent inside battery from continuing to send out
Raw reaction, as shown in Figure 4.If the intrinsic pressure of battery persistently increases, the top cover explosion-protection equipment 7 on top cover 3 will be opened so that battery is let out
Pressure, as shown in Figure 5.
For a kind of new cylindrical lithium-ion battery cap that the present invention is provided, which can retain existing breaker device CID
With gas bleeder valve Vent double protections, top cover is changed to closed, increased top cover explosion-protection equipment, by top cover and blowout disk it
Between increase fire retardant filling region, security protection is realized by fire retardant.
For a kind of new cylindrical lithium-ion battery cap that the present invention is provided, which has following technological merit：
1st, on the basis of keeping existing breaker device CID and the protection of gas bleeder valve Vent dual safeties, increase by a heavy fire retardant
Security protection scheme, reduces battery product thermal failure probability；
2nd, keep existing battery cover overall structure constant, do not adjusted using existing equipment and realize that automatization encapsulates.
In sum, compared with prior art, a kind of new cylindrical lithium-ion battery cap that the present invention is provided, which can
To increase more effective protective measure on the basis of the protection of existing dual safety, its when battery occurs abnormal, Neng Gouji
When cut off current loop, block the reaction of inside battery, so as to lift the security performance of cylindrical lithium ion battery product, reduce
There is the probability of Safe Failure due to thermal runaway in battery under extreme conditions, is conducive to improving the city of cell production companies product
Field application prospect, is of great practical significance.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of new cylindrical lithium-ion battery cap, it is characterised in that including circular battery cover body (1) and sealing ring
(2), the battery cover body (1) is embedded in the top of the sealing ring (2), and sealing ring (2) lower inside is embedded with peace
Full diaphragm (4)；
The inside upper part of the sealing ring (2) arranges Packed top cover (3), the blowout disk (4) and the top cover (3) it
Between have fire retardant fill region (6)；
Default fire retardant is filled with fire retardant filling region (6).
2. battery cover as claimed in claim 1, it is characterised in that the default fire retardant is phosphoric acid ester or phosphonitrile class
Fire retardant.
3. battery cover as claimed in claim 2, it is characterised in that the default fire retardant include trimethyl phosphate or
Triphenyl.
4. battery cover as claimed in claim 1, it is characterised in that the top cover (3) and battery cover body (1) bottom surface it
Between for electric arc weld.
5. battery cover as claimed in claim 4, it is characterised in that the outer circular edge part and the electricity of the top cover (3)
Weld for electric arc between lid body (1) bottom surface of pond.
6. the battery cover as any one of claim 1 to 5, it is characterised in that the bottom surface of the blowout disk (4) is arranged
There is breaker device (5), the blowout disk (4) is directly over the breaker device (5).
7. battery cover as claimed in claim 6, it is characterised in that the lateral mid-point of the top cover (3) is provided with top cover
Explosion-protection equipment (7).
8. battery cover as claimed in claim 7, it is characterised in that the top cover explosion-protection equipment (7) is gas bleeder valve；
The breaker device (5) is pressure relief safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610981722.9A CN106654080A (en) | 2016-11-09 | 2016-11-09 | Novel cylindrical lithium ion battery cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610981722.9A CN106654080A (en) | 2016-11-09 | 2016-11-09 | Novel cylindrical lithium ion battery cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106654080A true CN106654080A (en) | 2017-05-10 |
Family
ID=58805349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610981722.9A Pending CN106654080A (en) | 2016-11-09 | 2016-11-09 | Novel cylindrical lithium ion battery cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106654080A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098364A (en) * | 2019-05-09 | 2019-08-06 | 力神电池（苏州）有限公司 | A kind of high security cylindrical lithium ion battery |
| WO2022080174A1 (en) * | 2020-10-14 | 2022-04-21 | 三洋電機株式会社 | Sealed battery |
| CN114628792A (en) * | 2022-03-09 | 2022-06-14 | 道克特斯(天津)新能源科技有限公司 | Novel manufacturing method of full-lug cylindrical battery with CID power-off and explosion-proof functions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030134203A1 (en) * | 2002-01-11 | 2003-07-17 | Jiang Fan | Fire and corrosion resistant thermally stable electrodes and batteries and method for manufacturing same |
| CN201773876U (en) * | 2010-09-07 | 2011-03-23 | 天津力神电池股份有限公司 | Novel low resistance cylindrical lithium ion battery cover |
| CN205542914U (en) * | 2016-01-29 | 2016-08-31 | 广东精进能源有限公司 | Fire prevention high power capacity cylinder battery |
-
2016
- 2016-11-09 CN CN201610981722.9A patent/CN106654080A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030134203A1 (en) * | 2002-01-11 | 2003-07-17 | Jiang Fan | Fire and corrosion resistant thermally stable electrodes and batteries and method for manufacturing same |
| CN201773876U (en) * | 2010-09-07 | 2011-03-23 | 天津力神电池股份有限公司 | Novel low resistance cylindrical lithium ion battery cover |
| CN205542914U (en) * | 2016-01-29 | 2016-08-31 | 广东精进能源有限公司 | Fire prevention high power capacity cylinder battery |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098364A (en) * | 2019-05-09 | 2019-08-06 | 力神电池（苏州）有限公司 | A kind of high security cylindrical lithium ion battery |
| CN110098364B (en) * | 2019-05-09 | 2024-05-14 | 力神电池（苏州）有限公司 | High-safety cylindrical lithium ion battery |
| WO2022080174A1 (en) * | 2020-10-14 | 2022-04-21 | 三洋電機株式会社 | Sealed battery |
| CN114628792A (en) * | 2022-03-09 | 2022-06-14 | 道克特斯(天津)新能源科技有限公司 | Novel manufacturing method of full-lug cylindrical battery with CID power-off and explosion-proof functions |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |