CN105118936B - A kind of anti-burning block of power battery explosion protection - Google Patents
A kind of anti-burning block of power battery explosion protection Download PDFInfo
- Publication number
- CN105118936B CN105118936B CN201510558629.2A CN201510558629A CN105118936B CN 105118936 B CN105118936 B CN 105118936B CN 201510558629 A CN201510558629 A CN 201510558629A CN 105118936 B CN105118936 B CN 105118936B
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- China
- Prior art keywords
- pressure disc
- rupture pressure
- upper cap
- seal ring
- pressure release
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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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- 238000004880 explosion Methods 0.000 title claims abstract description 13
- 238000005452 bending Methods 0.000 claims abstract description 15
- 238000003466 welding Methods 0.000 claims abstract description 12
- 238000004026 adhesive bonding Methods 0.000 claims abstract 4
- 238000007789 sealing Methods 0.000 claims description 15
- 230000007704 transition Effects 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 2
- 230000005622 photoelectricity Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 5
- 241001249699 Capitata Species 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 208000007356 Fracture Dislocation Diseases 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007306 turnover Effects 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
-
- 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
-
- 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 present invention relates to a kind of anti-burning block of power battery explosion protection, including upper cap, rupture pressure disc with wall, orifice plate and interior, exterior seal ring, it is in by the inside bending compression of wall that upper cap, which is arranged on rupture pressure disc upper surface, and ultrasonic wave multi-point welding is in upper cap upper end surface state, multiple stomatas are evenly equipped with upper cap, the upset being connected in upper cap, which is equipped with, in each stomata answers pressure release button in advance, weld orifice plate in rupture pressure disc lower surface, exterior seal ring gluing wraps up the outer wall of upper cap outer wall and rupture pressure disc, exterior seal ring it is upper, following inwardly bending gluing compresses upper cap or the upper surface of rupture pressure disc bending wall and the lower surface of rupture pressure disc, it is characterized in that：Be evenly equipped with the rupture pressure disc it is multiple correspond to the pre- pressure release lines for answering pressure release button of multiple upsets respectively, the pressure release line is the single arc curve do not closed, or pressure release line is two and meets at the structure of any to reach the standard grade.
Description
Technical field
The present invention relates to a kind of battery cap, specifically a kind of micro resistance, without exploding, do not burn, the cylinder of high current
The anti-burning block of type lithium ion power battery explosion protection.
Background technology
Power battery cap is the critical component that electrokinetic cell is also known as high current lithium ion battery, and he is directly connected to battery
Security performance, amount of capacity, service life, safety high current, the producer and user production and it is safe to use.It is existing
Cylinder-type power battery block is mainly made up of upper cap, pad, the rupture pressure disc with wall, sealing ring, orifice plate.Such block
Under battery activated high power charging-discharging or during battery exception, pad heating is serious, and rupture pressure disc closed circular pressure relief ring passes through
The ability of current cross section product electric current is severely limited, and when pure electric bus etc. needs to start instantaneous large-current, battery is abnormal
Heating, power off or open in advance, it is impossible to ensure that cell safety is explosion-proof and anti-burning.In order to improve the security performance of battery and lead to
The ability of sectional area electric current is crossed, we make the pressure rings that block is closed into the C-shaped do not closed or Y shape pressure release lines, and increase is big
The material section product of electric current safety, is not influenceed and restriction by pressure relief ring, cancels the pad of heating most serious, by upper lid
The reserved upset of cap is pre- to answer that pressure release is buckled and explosion-proof line coordinates and completes block pressure release and open.Internal resistance from 1 milliohm descend to 0.1 milliohm with
Under, change and become two layers of sealing ring using one layer of sealing ring, need two kinds of functions of sealing ring separately to complete on battery, outer ring ensures
Block is flexible safely in battery seal, high-temperature fusion.Inner ring ensures that rigidity is not burnt when limit high/low temperature and normal temperature.
The explosion-proof cap of micro-resistance cylindrical lithium ion battery as disclosed in Patent No. ZL2010 2 0180890.6, mainly has
Upper cap, pad, the rupture pressure disc with wall, sealing ring, orifice plate composition.Such block is under battery abnormality or battery
When activating discharge and recharge, pad heating is serious, and closed circular pressure relief ring rupture pressure disc explosion-proof capabilities are extremely unstable, in block process
Because the reasons such as vibration of ultrasonic wave, all directions stress are easily opened in advance when middle cleaning, welding, battery seal, Huo Zhekai
Pressure reduction is opened, causes also no laser solder joint to break power-off and is switched on pressure release.Do not power off when being switched on pressure release, release the height come
Wet body be easy to run into oxygen and with sealing ring as the not fire-retardant medium that catches fire play a role and burn together, or even one
When determining high temperature, sealing ring can not limit orifice plate and follow rupture pressure disc to overturn together, and the sealing ring of melting can block upper cap outlet
Mouthful, being continuously powered can allow cell internal pressure infinitely to raise and explode.The ring dress pressure rings of closing are mainly by thinning material
Expect that such block is severely limited by the ability of sectional area electric current, in pure electric bus etc. to form pressure pressure relief opening
Battery abnormal heating when needing to start instantaneous large-current, power off or open in advance.
In addition, in cell package block and during box hat, using the radial and axial pressing box hat of mould and block, block to by
Radial pressure and axial compressive force joint effect, radial pressure and axial compressive force deform sealing ring and rupture pressure disc with credit union, close
Orifice plate and rupture pressure disc is caused to misplace to cause battery to be scrapped, not radial through sealing ring although seal can be cut off by hollow out
It can guarantee that rupture pressure disc stress irregularly causes the superposition or thinning of closed circular pressure relief ring, such indentation, which goes out superposition, can cause to open
Pressure is infinitely great, battery can not be normally-open and explode；Indentation draw it is thin, pressure release Opening pressure reduce cause battery open in advance and
Scrap reduction of service life.
The content of the invention
In order to solve in the prior art power battery cap rupture pressure disc upset after can not normally-open pressure release, block internal resistance not
It is stable, instantaneous large-current can not be passed through, generated heat using high current serious, battery easy firing, service life it is short, and block
When normal production and block encapsulate with box hat, the yielding rupture of rupture pressure disc, rupture pressure disc and the orifice plate dislocation fracture of block cause electricity
Pond is scrapped, rupture pressure disc Superposed Deformation causes the drawbacks such as battery explosion, easy firing, and it is an object of the invention to provide a kind of rupture pressure disc to turn over
Normally-open pressure release after turning, internal resistance is stable, service life is long, without deformation dislocation, explosion-proof performance is stable, production and safe to use
The anti-burning block of power battery explosion protection.
The technical solution adopted by the present invention is：A kind of anti-burning block of power battery explosion protection, including upper cap, with wall
Rupture pressure disc, orifice plate and inside and outside sealing ring, upper cap are arranged on rupture pressure disc upper surface, and the inside bending of rupture pressure disc wall compresses
Block and ultrasonic wave multi-point welding are evenly equipped with multiple stomatas on upper cap upper surface, upper cap, the company of being equipped with each stomata
Pressure release button, rupture pressure disc lower surface welding orifice plate are answered in the upset being connected in upper cap in advance, and exterior seal ring wraps up upper cap outer wall and prevented
The outer wall of quick-fried film, the inside bending in the upper and lower side of exterior seal ring compress the upper surface of upper cap or rupture pressure disc bending wall and explosion-proof
The lower surface of film, it is characterised in that：Multiple pressure releases for corresponding to multiple upsets respectively and answering pressure release button in advance are evenly equipped with the rupture pressure disc
Line, the pressure release line are the single arc curve do not closed, or pressure release line is two and meets at the structure of any to reach the standard grade.
Further, Edge Bend forms circular cavity under the exterior seal ring, and inner seal ring, interior sealing are set in circular cavity
The corresponding circular cavity side wall positioning or spacing of circle, inner seal ring lower surface are provided with a supporting table, and orifice plate positioning or limited support exist
In supporting table or in supporting table.
Further, the inner seal ring supporting platform thickeies, and inner seal ring supporting table periphery is hollow out or featheredge structure.
Further, convex under the explosion-proof center membrane is in steamed bun shape ridge structure, and pressure release line is arranged at steamed bun eminelntia capitata knot
On structure or steamed bun shape ridge structure root, orifice plate laser spot welding is connected in rupture pressure disc steamed bun shape ridge structure.
Further, the orifice plate lower surface ultrasonic bonding transition lug.
On be covered with multiple stomatas and upset answer pressure release button in advance, upper cap is wrapped in wall by the wall bending of rupture pressure disc
It is interior, the several points of upper cap and rupture pressure disc are merged by ultrasonic bonding, makes its overall internal resistance constant and is scribbled in gigohm level, insertion
In the exterior seal ring of glue, and carry out wrapper and wrap up in tightly.By lower embedded inner seal ring and orifice plate, orifice plate and rupture pressure disc laser spots
Weldering.There is steamed bun shape ridge structure rupture pressure disc bottom surface and variously-shaped pre- answers pressure release to open line, steamed bun shape ridge structure highest point
It is a smooth jig, the jig that platform and orifice plate are reserved is brought into close contact, is circulated by laser and welded, in cooperation
Sealing ring forms the control point for forcing power-off.In an abnormal situation, internal pressure rise temperature raises battery, rupture pressure disc steamed bun eminelntia capitata
Overturn, set in pressure, orifice plate comes off with rupture pressure disc laser solder joint, and battery is forced to power off to upper cap direction；Internal pressure continues
Rise, rupture pressure disc steamed bun eminelntia capitata are totally turned over over, are answered pressure release unlatching line to coordinate upper cap upset to answer pressure release to be buckled in advance in advance and are set
Fixed opened by pressure pressure release.
It is an advantage of the invention that：
1st, upper cap is provided with that upset is pre- to answer pressure release button in venthole, and upset is pre- to answer that pressure release is buckled in rupture pressure disc and orifice plate takes off
Thoroughly upset, props up rupture pressure disc pressure release line, prevents under limit high and low temperature environment after opening, and rupture pressure disc is because of environment reason expansion after deformation
Withstanding lid can not be normally-open, carries out secondary pressure and punctures rupture pressure disc and open pressure release.
2nd, rupture pressure disc is by the pressure release line that sets multiple C-shapeds on whole steamed bun shape bulge-structure or Y shapes are not closed, to high current from
High current is reserved by the necessary sectional area of material, prevents high current moment by having reserved enough spaces in pressure release line periphery
Heated up by small area and moment, also buffered that mould when block and box hat encapsulate passes over radial and axial passes over
Pressure, it is ensured that explosion-proof line is not superimposed or drawn thin, improves cell safety explosion-proof performance.
3rd, upper cap and it is not less than three ultrasonic bonding with rupture pressure disc wall bending part, upper cap and explosion-proof after welding
Film is connected as a single entity, and eliminates space caused by contact between each other, reduces overall internal resistance；
4th, exterior seal ring ensures the enough elastic, strong acid of resistance to highly basic abilities, high temperature resistant and the energy melted using material modified
Power, normal temperature lower cover cap and box hat have enough elasticity envelopes not live space guarantee sealing no leakage when encapsulating, not by strong acid and highly basic
Corrode and follow the string, there is certain melt capacity after high temperature.
5th, interior exterior seal ring uses fire proofing, it is ensured that high temperature is missing of ignition, and inner ring high temperature do not soften, non-conductive ensures battery
Normally-open pressure release after normal power down, no blast and flammability issues, it is ensured that produce and safe to use.Orifice plate is supported on inner seal ring
Supporting table position thicken and strengthen, while coordinate with upper cap and to ensure that orifice plate and rupture pressure disc depart from dry after cell internal pressure increase
Only, and then rupture pressure disc together up do not move by lid direction.Supporting table periphery is by the way of featheredge or hollow out, when block and box hat
The radial load passed over during encapsulation can make the wing while or deform during hollow out, not direct power transmission, it is ensured that orifice plate and rupture pressure disc are pretty good
Position disconnects in advance, improves cell safety explosion-proof performance and anti-burning performance.
The present invention is compact-sized, and simply, indeformable, internal resistance is low, under various limit high and low temperature environment and abnormality just
Normal off electricity simultaneously opens pressure release, the anti-burning stable performance of blast protection, service life length.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is Fig. 1 top views；
Fig. 3 is Fig. 1 upward views；
Fig. 4 is inner seal ring structural representation；
Fig. 5 is a kind of example structure schematic diagram of rupture pressure disc；
Fig. 6 is another example structure schematic diagram of rupture pressure disc.
In figure：Upper cap 1, stomata 2, upset answer pressure release button 3, rupture pressure disc 4, wall 5, steamed bun shape bulge-structure 6, C-shaped in advance
Pressure release line 7, Y shape pressure releases line 71, exterior seal ring 9, orifice plate 10, transition lug 11, inner seal ring 12, supporting table 13, featheredge 14.
Embodiment
Below in conjunction with drawings and examples, the invention will be further described.
Shown in Fig. 1-4：A kind of anti-burning block of power battery explosion protection includes upper cap 1, rupture pressure disc 4, orifice plate with wall 5
10th, transition lug 11, inner seal ring 12 and exterior seal ring 9, it is in inside by wall 5 that upper cap 1, which is arranged on the upper surface of rupture pressure disc 4,
Bending compression and ultrasonic wave multi-point welding is evenly equipped with multiple stomatas 2, each stomata on the upper end surface state of upper cap 1, upper cap 1
The upset being connected in upper cap 1 is equipped with 2 and answers pressure release button 3 in advance, convex under the lower surface center of rupture pressure disc 4 is in steamed bun eminelntia capitata knot
Structure 6, steamed bun shape ridge structure 6 are that platform-like and multiple spot laser spot welding connect orifice plate 10, lid weld in steamed bun shape ridge structure 6
Or the root of steamed bun shape ridge structure 6 be provided with corresponding upset it is pre- answer pressure release button 3 do not close single arc curve structure pressure release line
Or two meet at the structure pressure release line of any to reach the standard grade；Exterior seal ring 9 wraps up the outer wall of the outer wall of upper cap 1 and rupture pressure disc 4, outer close
The inside bending in upper and lower side of seal 9 compresses the upper surface of rupture pressure disc bending wall 5 and the lower surface of rupture pressure disc 4, exterior seal ring 9
Lower Edge Bend forms circular cavity, sets inner seal ring 12 in circular cavity, the corresponding circular cavity side wall positioning of inner seal ring 12 or
Spacing, the lower surface of inner seal ring 12 is provided with a supporting table 13, and orifice plate 10 positions or limited support is in supporting table or in supporting table,
Inner seal ring supporting platform thickeies, and inner seal ring supporting table periphery is hollow out or featheredge structure；The lower surface supersonic welding of orifice plate 10
Take over and cross lug 11.
Shown in Fig. 5：It is C-shaped pressure release not close single arc curve structure pressure release on the steamed bun shape bulge-structure 6 of rupture pressure disc 4
Line 7, the corresponding upset of C-shaped pressure release line 7 answers pressure release to buckle 3 in advance, corresponding when rupture pressure disc 4 is dug upwards with inner pressure of battery to be let out in advance by upset
The lower C-shaped pressure release line 7 of the effect of clinching 3 opens pressure release.
Shown in Fig. 6：It is Y shape pressure releases not close single arc curve structure pressure release on the steamed bun shape bulge-structure 6 of rupture pressure disc 4
Line 71, the corresponding upset of Y shape pressure releases line 71 answers pressure release to buckle 3 in advance, corresponding when rupture pressure disc 4 is dug upwards with inner pressure of battery in advance by upset
The lower Y shape pressure releases line 71 of the effect of pressure release button 3 opens pressure release.
Claims (5)
1. a kind of anti-burning block of power battery explosion protection, including upper cap, the rupture pressure disc with wall, orifice plate and inside and outside sealing ring,
Upper cap is arranged on rupture pressure disc upper surface, and the inside bending of rupture pressure disc wall compresses upper cap and ultrasonic wave multi-point welding is in Shang Gai
Cap upper surface, multiple stomatas are evenly equipped with upper cap, the upset being connected in upper cap is equipped with each stomata and answers pressure release in advance
The outer wall of button, rupture pressure disc lower surface welding orifice plate, exterior seal ring gluing parcel upper cap outer wall and rupture pressure disc, exterior seal ring
The upper and lower inside bending gluing in side compresses upper cap or the upper surface of rupture pressure disc bending wall and the lower surface of rupture pressure disc, its feature
It is：Multiple pressure release lines for corresponding to multiple upsets respectively and answering pressure release button in advance are evenly equipped with the rupture pressure disc, the pressure release line is not
The single arc curve of closing, or pressure release line are two and meet at the structure of any to reach the standard grade.
2. the anti-burning block of a kind of power battery explosion protection according to claim 1, it is characterized in that：The exterior seal ring is following
Bending forms circular cavity, inner seal ring is set in circular cavity, inner seal ring corresponds to the positioning or spacing of circular cavity side wall, interior close
Seal lower surface is provided with a supporting table, and orifice plate positioning or limited support are in supporting table or in supporting table.
3. the anti-burning block of a kind of power battery explosion protection according to claim 2, it is characterized in that：The inner seal ring support
Thickeied at platform, inner seal ring supporting table periphery is hollow out or featheredge structure.
4. the anti-burning block of a kind of power battery explosion protection according to claim 1, it is characterized in that：Under the explosion-proof center membrane
Convex is in steamed bun shape ridge structure, and pressure release line is arranged in steamed bun shape ridge structure or the root of steamed bun shape ridge structure, orifice plate swash
Photoelectricity weldering is connected in rupture pressure disc steamed bun shape ridge structure.
5. the anti-burning block of a kind of power battery explosion protection according to claim 1, it is characterized in that：The orifice plate lower surface surpasses
Sound wave welding transition lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510558629.2A CN105118936B (en) | 2015-09-06 | 2015-09-06 | A kind of anti-burning block of power battery explosion protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510558629.2A CN105118936B (en) | 2015-09-06 | 2015-09-06 | A kind of anti-burning block of power battery explosion protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105118936A CN105118936A (en) | 2015-12-02 |
| CN105118936B true CN105118936B (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510558629.2A Active CN105118936B (en) | 2015-09-06 | 2015-09-06 | A kind of anti-burning block of power battery explosion protection |
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| CN (1) | CN105118936B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898717A (en) * | 2017-04-19 | 2017-06-27 | 朱剑 | A kind of fast charging and discharging type electrokinetic cell safe cap |
| WO2022109939A1 (en) * | 2020-11-26 | 2022-06-02 | 宁德新能源科技有限公司 | Electrochemical apparatus and electronic device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2411578Y (en) * | 2000-03-23 | 2000-12-20 | 信息产业部电子第十八研究所 | Explosion-proof cover for cylindrical lithium ion accumulator |
| JP2003217544A (en) * | 2002-01-22 | 2003-07-31 | Shin Kobe Electric Mach Co Ltd | Sealed battery |
| JP4590856B2 (en) * | 2003-11-14 | 2010-12-01 | 新神戸電機株式会社 | Sealed battery |
| CN2793932Y (en) * | 2005-05-13 | 2006-07-05 | 深圳粤宝电子工业总公司 | Explosive-proof cover of battery |
| CN204927368U (en) * | 2015-09-06 | 2015-12-30 | 朱剑 | Explosion -proof anti -flaming fever of power battery gigohm level block |
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2015
- 2015-09-06 CN CN201510558629.2A patent/CN105118936B/en active Active
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| CN105118936A (en) | 2015-12-02 |
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Effective date of registration: 20170914 Address after: 225400, Jiangsu Province, Taizhou City, Taixing Province Sichuan Street Village Applicant after: Taixing Xinye Electronic Co. Ltd. Address before: 225400 Taixing City, Taizhou Province, No. East Road, room 118, room 1305 Applicant before: Zhu Jian |
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Inventor after: Zhu Xinyu Inventor after: Zhu Jian Inventor before: Zhu Jian |
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