CN109378413A - A kind of dual explosion battery cap and battery - Google Patents
A kind of dual explosion battery cap and battery Download PDFInfo
- Publication number
- CN109378413A CN109378413A CN201811000272.6A CN201811000272A CN109378413A CN 109378413 A CN109378413 A CN 109378413A CN 201811000272 A CN201811000272 A CN 201811000272A CN 109378413 A CN109378413 A CN 109378413A
- Authority
- CN
- China
- Prior art keywords
- explosion
- aluminium flake
- sealing ring
- slot
- internal projection
- 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.)
- Granted
Links
- 238000004880 explosion Methods 0.000 title claims abstract description 37
- 230000009977 dual effect Effects 0.000 title claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 93
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 239000011810 insulating material Substances 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 229910000679 solder Inorganic materials 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010959 steel Substances 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
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
-
- 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
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
-
- 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
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses a kind of dual explosion battery cap and batteries, including explosion-proof aluminium flake, nut cap ontology, cage ring, connection aluminium flake and sealing ring, cage ring and sealing ring are insulating materials, and explosion-proof aluminium flake is successively arranged flange from outer to center, Z-type changeover portion, cuts slot one and mid-plane；Nut cap ontology is equipped with nut cap edge and several nut cap through-holes, and connection aluminium flake is equipped with internal projection and several aluminium flake through-holes, and the edge of internal projection, which is equipped with, cuts slot two；Flange connection cover hat brim edge, the one side of cage ring connects the Z-type changeover portion of explosion-proof aluminium flake, another side connects aluminium flake, the diameter for cutting slot one is less than the interior edge of cage ring, explosion-proof aluminium flake is set to the inside of sealing ring, and sealing ring is equipped with sealing ring side wall, and sealing ring side wall connects flange, the tie point of mid-plane connection internal projection, mid-plane and internal projection is set to the inside for cutting slot two.Double slots that cut of the invention design, and so that the pressure of inside battery is cut explosion from slot from two, increase the area of air pressure inside discharge.
Description
Technical field
The present invention relates to a kind of dual explosion battery caps, belong to battery technology field.
Background technique
18650 battery cores are lithium batteries more commonly used in electronic product, and 18650 battery cores use metal shell, for
Security standpoint, metal shell intensity is larger, in use, internal would generally generate certain air pressure, when air pressure inside reaches certain
When steel shell can rupture explosion, safety accident occurs.So the anode of existing 18650 battery core is equipped with venthole, to right
Decompression is exhausted inside battery core, but the oversized sundries that easily causes of venthole enters to inside battery core, therefore battery core
Stomata in nut cap must satisfy two adjustings, first is that the airflow channel size for exhaust wants moderate；Two are able to the greatest extent may be used
Energy extraneous sundries, moisture is avoided to enter to inside battery core.
On the other hand, when the failures such as short circuit occur for battery, the pressure of inside battery can be increased sharply, at this time anode
Gas vent can not play the role of quick pressure releasing, if pressure release speed does not catch up with the speed of internal pressure generation, battery is whole just
It can explode, cause an accident.In the prior art, it is lower quick-fried relative to battery body that intensity is set usually on battery cap
Breakpoint, when cell internal pressure abruptly increase, pressure can break through its blow-up point, achieve the purpose that pressure release, therefore blow-up point explosion
Speed and the size of effective exhaust outlet that generates of explosion directly determine the security performance of battery entirety, therefore develop one kind
It quick bursting and can generate compared with the battery cap of great explosion mouth for promoting the security performance of battery entirety with important
Meaning.
Summary of the invention
To solve the deficiencies in the prior art, the purpose of the present invention is to provide a kind of dual explosion battery cap and batteries.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
A kind of dual explosion battery cap, which is characterized in that including explosion-proof aluminium flake, nut cap ontology, cage ring, connection aluminium flake and close
Seal, cage ring and sealing ring are insulating materials, and explosion-proof aluminium flake is successively arranged flange from outer to center, Z-type changeover portion, cuts
Slot one and mid-plane；Nut cap ontology is equipped with nut cap edge and several nut cap through-holes, and connection aluminium flake is equipped with internal projection and several aluminium
Piece through-hole, the edge of internal projection, which is equipped with, cuts slot two；Flange connection cover hat brim edge, the one side of cage ring connect the Z-type of explosion-proof aluminium flake
Changeover portion, another side connect aluminium flake, and the diameter for cutting slot one is less than the interior edge of cage ring, and explosion-proof aluminium flake is set to the interior of sealing ring
Portion, sealing ring are equipped with sealing ring side wall, and sealing ring side wall connects flange, and mid-plane connects internal projection, mid-plane and convex
The tie point risen is set to the inside for cutting slot two.
Specifically, dual explosion battery cap above-mentioned in: when explosion-proof aluminium flake connect connection aluminium flake when, cut slot one and be set to
The connection aluminium flake side of explosion-proof aluminium flake, cuts slot two and is oppositely arranged with slot one is cut.
Specifically, dual explosion battery cap above-mentioned is welding in: the connection type of explosion-proof aluminium flake and internal projection.
Specifically, dual explosion battery cap above-mentioned has one in: explosion-proof aluminium flake and the solder joint of internal projection, solder joint setting
In the center of internal projection.
Specifically, dual explosion battery cap above-mentioned is CID welding in: explosion-proof aluminium flake and the welding manner of internal projection.
Specifically, dual explosion battery cap above-mentioned in: the material of nut cap ontology is stainless steel, cage ring and sealing ring
Material be PBT.
Specifically, dual explosion battery cap above-mentioned is four in: the quantity of nut cap through-hole, four nut cap through-holes are circumferential
It is uniformly arranged, there are three the quantity of aluminium flake through-hole, and three aluminium flake through-holes are uniformly distributed.
A kind of battery, which is characterized in that be equipped with dual explosion battery cap above-mentioned in.
Advantageous effects of the invention: Z-type changeover portion of the invention increases the support force for explosion-proof aluminium flake, make
Explosion-proof aluminium flake center into nut cap ontology moving process, be more advantageous to and cut the opening of slot one and become larger, further decrease explosion-proof
Aluminium flake is cutting the intensity at slot one, and when pressure rises to a certain degree, explosion-proof aluminium flake is torn at slot one cutting, internal pressure wink
Between be released, avoid battery explosion.Z-type changeover portion is arranged so that the deformation of explosion-proof aluminium flake, which is concentrated mainly on, cuts slot one
Place, be conducive to explosion-proof aluminium flake from cut from slot one tear.
The present invention is set there are two slot is cut, and when increasing the pressure moment of inside battery, explosion from slot can be cut from two, is increased
The area for having added air pressure inside to be discharged.If due to when other reasons, which cause one of them to cut slot, normally to be torn, another
Cut slot also can explosion, double settings for cutting slot are so that the security performance of battery cap is higher.
Detailed description of the invention
Fig. 1 is whole axial cut away view of the invention；
Fig. 2 is the whole axial cut away view of the explosion-proof aluminium flake of the present invention；
Fig. 3 is the whole axial cut away view of present invention connection aluminium flake；
Fig. 4 is the partial enlarged view of Fig. 3 of the present invention；
Fig. 5 is nut cap ontology axonometric drawing of the present invention；
Fig. 6 is blasting principle figure of the present invention；
The meaning of appended drawing reference in figure: the explosion-proof aluminium flake of 1-；11- flange；12- cuts slot one；13-Z type changeover portion；14- mid-plane；
2- nut cap ontology；21- nut cap edge；22- nut cap through-hole；3- cage ring；4- connection aluminium flake；41- cuts slot two；42- internal projection；
43- aluminium flake through-hole；5- sealing ring；52- sealing ring side wall；521- projected side wall.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figures 1 to 5: present embodiment discloses a kind of dual explosion battery caps, including explosion-proof aluminium flake 1, nut cap
Ontology 2, cage ring 3, connection aluminium flake 4 and sealing ring 5, cage ring 3 and sealing ring 5 are insulating materials, and explosion-proof aluminium flake 1 is from outer
Flange 11, Z-type changeover portion 13 are successively arranged to center, cut slot 1 and mid-plane 14；Nut cap ontology 2 is equipped with nut cap edge 21
And several nut cap through-holes 22, connection aluminium flake 4 are equipped with internal projection 42 and several aluminium flake through-holes 43, the edge of internal projection 42, which is equipped with, cuts slot
2 41；For 11 connection cover hat brim of flange along 21, the one side of cage ring 3 connects the Z-type changeover portion 13 of explosion-proof aluminium flake 1, another side connection
Aluminium flake 4, the diameter for cutting slot 1 are less than the interior edge of cage ring 3, and explosion-proof aluminium flake 1 is set to the inside of sealing ring 5, and sealing ring 5 is set
There is sealing ring side wall 52, sealing ring side wall 52 connects flange 11, and mid-plane 14 connects internal projection 42, mid-plane 14 and convex
The tie point for playing 42 is set to the inside for cutting slot 2 41.
Specifically, when explosion-proof aluminium flake 1 connects connection aluminium flake 4, being cut to be conducive to cut slot 1 and cut the tearing of slot 2 41
Slot 1 is set to 4 side of connection aluminium flake of explosion-proof aluminium flake 1, cuts slot 2 41 and is oppositely arranged with slot 1 is cut.
Have, explosion-proof aluminium flake 1 and the connection type of internal projection 42 are welding, and solder joint has one, and solder joint is set to
The center of internal projection 42.
Explosion-proof aluminium flake 1 and the welding manner of internal projection 42 are CID welding (failure of current device).
The material of nut cap ontology 2 is stainless steel, and cage ring 3 and the material of sealing ring 5 are PBT.
The quantity of nut cap through-hole 22 is four, and four nut cap through-holes 22 are circumferential to be uniformly arranged, and the quantity of aluminium flake through-hole 43 has
Three, three aluminium flake through-holes 43 are uniformly distributed.
As shown in Figure 6: the figure a in Fig. 6 indicates the whole process of battery explosion to figure c, when the pressure of inside battery is slow
Increase, pressure can the gap between sealing ring 5 and explosion-proof aluminium flake 1 appear, achieve the purpose that pressure release.
When battery causes internal pressure sharply to increase due to short-circuit or other reasons, pressure is through connecting the aluminium flake of aluminium flake 4
Through-hole 43 enters to explosion-proof aluminium flake 1, and pressure has certain impact force (instruction of Fig. 6 arrow) for explosion-proof aluminium flake 1, due to connection
Aluminium flake 4 itself has between certain intensity and mid-plane 14 and internal projection 42 using welding.When pressure rises to certain journey
When spending, the mid-plane 14 of explosion-proof aluminium flake 1 pulls internal projection 42 to tear it from cutting slot 2 41.When mid-plane 14 is after supervention
When raw deformation, Z-type changeover portion 13 increases the support force for explosion-proof aluminium flake 1, so that the center of explosion-proof aluminium flake 1 is to nut cap sheet
In 2 moving process of body, be more advantageous to and cut the opening of slot 1 and become larger, further decrease explosion-proof aluminium flake 1 cut it is strong at slot 1
Degree, when pressure rises to a certain degree, explosion-proof aluminium flake 1 is torn at slot 1 cutting, and internal pressure moment is released, and avoids
Battery explosion, nut cap ontology 2 can prevent explosion-proof aluminium flake 1 from collapsing out.Convex is presented as the overturning of explosion-proof aluminium flake 1 in nut cap ontology 2
Explosion provides space, and the timely of battery core air pressure inside is released after four ventholes of nut cap ontology 2 ensure that explosion-proof 1 explosion of aluminium flake
It puts, prevents air pressure that can not be released effectively and battery core is caused to explode.
The setting of Z-type changeover portion 13 is conducive to explosion-proof aluminium so that the deformation of explosion-proof aluminium flake 1 is concentrated mainly on cuts at slot 1
Piece 1 from cut from slot 1 tear.
The present embodiment is set there are two slot is cut, and when increasing the pressure moment of inside battery, can cut explosion from slot from two,
Increase the area of air pressure inside discharge.If another due to when other reasons, which cause one of them to cut slot, normally to be torn
It is a cut slot also can explosion, double settings for cutting slot are so that the security performance of battery cap is higher.
The present embodiment also discloses a kind of battery, which is characterized in that equipped with the above-mentioned dual explosion battery cover of the present embodiment
Cap.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of dual explosion battery cap, which is characterized in that including explosion-proof aluminium flake (1), nut cap ontology (2), cage ring (3),
Connect aluminium flake (4) and sealing ring (5), the cage ring (3) and sealing ring (5) they are insulating materials, the explosion-proof aluminium flake (1) from
Outer is successively arranged flange (11), Z-type changeover portion (13) to center, cuts slot one (12) and mid-plane (14)；The nut cap sheet
Body (2) is equipped with nut cap edge (21) and several nut cap through-holes (22), and the connection aluminium flake (4) is equipped with internal projection (42) and several aluminium
Piece through-hole (43), the edge of the internal projection (42), which is equipped with, cuts slot two (41)；Flange (11) the connection cover hat brim is along (21), institute
The one side for stating cage ring (3) connects the Z-type changeover portion (13) of explosion-proof aluminium flake (1), and another side connects aluminium flake (4), described to cut slot one
(12) diameter is less than the interior edge of cage ring (3), and the explosion-proof aluminium flake (1) is set to the inside of sealing ring (5), sealing ring (5)
Equipped with sealing ring side wall (52), sealing ring side wall (52) connects flange (11), and the mid-plane (14) connects internal projection (42),
The tie point of mid-plane (14) and internal projection (42) is set to the inside for cutting slot two (41).
2. dual explosion battery cap according to claim 1, it is characterised in that: when explosion-proof aluminium flake (1) connects connection aluminium
When piece (4), connection aluminium flake (4) side that slot one (12) is set to explosion-proof aluminium flake (1) is cut, cut slot two (41) and cuts slot one (12) is opposite
Setting.
3. dual explosion battery cap according to claim 1, which is characterized in that explosion-proof aluminium flake (1) and internal projection (42)
Connection type be welding.
4. dual explosion battery cap according to claim 3, which is characterized in that explosion-proof aluminium flake (1) and internal projection (42)
Solder joint have one, solder joint is set to the center of internal projection (42).
5. dual explosion battery cap according to claim 3 or 4, which is characterized in that explosion-proof aluminium flake (1) and internal projection
(42) welding manner is CID welding.
6. dual explosion battery cap according to claim 1, which is characterized in that the material of the nut cap ontology (2) is
Stainless steel, the cage ring (3) and the material of sealing ring (5) are PBT.
7. dual explosion battery cap according to claim 1, which is characterized in that the quantity of the nut cap through-hole (22) is
Four, four nut cap through-holes (22) are circumferentially uniformly arranged, and there are three the quantity of the aluminium flake through-hole (43), three aluminium flake through-holes
(43) it is uniformly distributed.
8. a kind of battery, which is characterized in that be equipped with dual explosion battery cap described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811000272.6A CN109378413B (en) | 2018-08-30 | 2018-08-30 | Dual blasting battery cap and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811000272.6A CN109378413B (en) | 2018-08-30 | 2018-08-30 | Dual blasting battery cap and battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109378413A true CN109378413A (en) | 2019-02-22 |
| CN109378413B CN109378413B (en) | 2023-12-26 |
Family
ID=65404237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811000272.6A Active CN109378413B (en) | 2018-08-30 | 2018-08-30 | Dual blasting battery cap and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109378413B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06215747A (en) * | 1992-09-29 | 1994-08-05 | Matsushita Electric Ind Co Ltd | Explosion-proof sealing plate for sealed battery |
| KR20070119217A (en) * | 2006-06-14 | 2007-12-20 | 주식회사 플라즈마토건 | A termite blasting apparatus using strip |
| JP2008282679A (en) * | 2007-05-10 | 2008-11-20 | Sanyo Electric Co Ltd | Sealed battery |
| CN204481060U (en) * | 2015-04-09 | 2015-07-15 | 常州市武进中瑞电子有限公司 | Z-structured battery anti-explosion combined cap |
| CN204792945U (en) * | 2015-06-30 | 2015-11-18 | 常州市武进中瑞电子有限公司 | Prevent short circuit block |
| CN205488258U (en) * | 2016-04-08 | 2016-08-17 | 江阴市东润电子有限公司 | Novel explosion -proof combined cover cap of short circuit is prevented to cylinder lithium cell polymer |
| CN205542928U (en) * | 2016-04-08 | 2016-08-31 | 江阴市东润电子有限公司 | Novel cylinder lithium cell hangs down explosion -proof combined cover cap of internal resistance power type |
| CN205542935U (en) * | 2016-04-18 | 2016-08-31 | 江阴市瑞鸿电子有限公司 | Battery explosion -proof cover cap |
| CN205752269U (en) * | 2016-05-18 | 2016-11-30 | 东莞市鸿德电池有限公司 | A kind of anti-explosion battery shell |
| CN107170918A (en) * | 2016-10-18 | 2017-09-15 | 深圳市比克动力电池有限公司 | A kind of lithium ion power battery explosion protection cover and its manufacture method |
| CN208873778U (en) * | 2018-08-30 | 2019-05-17 | 苏州橙柳电子精密有限公司 | A kind of dual explosion battery cap and battery |
-
2018
- 2018-08-30 CN CN201811000272.6A patent/CN109378413B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06215747A (en) * | 1992-09-29 | 1994-08-05 | Matsushita Electric Ind Co Ltd | Explosion-proof sealing plate for sealed battery |
| KR20070119217A (en) * | 2006-06-14 | 2007-12-20 | 주식회사 플라즈마토건 | A termite blasting apparatus using strip |
| JP2008282679A (en) * | 2007-05-10 | 2008-11-20 | Sanyo Electric Co Ltd | Sealed battery |
| CN204481060U (en) * | 2015-04-09 | 2015-07-15 | 常州市武进中瑞电子有限公司 | Z-structured battery anti-explosion combined cap |
| CN204792945U (en) * | 2015-06-30 | 2015-11-18 | 常州市武进中瑞电子有限公司 | Prevent short circuit block |
| CN205488258U (en) * | 2016-04-08 | 2016-08-17 | 江阴市东润电子有限公司 | Novel explosion -proof combined cover cap of short circuit is prevented to cylinder lithium cell polymer |
| CN205542928U (en) * | 2016-04-08 | 2016-08-31 | 江阴市东润电子有限公司 | Novel cylinder lithium cell hangs down explosion -proof combined cover cap of internal resistance power type |
| CN205542935U (en) * | 2016-04-18 | 2016-08-31 | 江阴市瑞鸿电子有限公司 | Battery explosion -proof cover cap |
| CN205752269U (en) * | 2016-05-18 | 2016-11-30 | 东莞市鸿德电池有限公司 | A kind of anti-explosion battery shell |
| CN107170918A (en) * | 2016-10-18 | 2017-09-15 | 深圳市比克动力电池有限公司 | A kind of lithium ion power battery explosion protection cover and its manufacture method |
| CN208873778U (en) * | 2018-08-30 | 2019-05-17 | 苏州橙柳电子精密有限公司 | A kind of dual explosion battery cap and battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109378413B (en) | 2023-12-26 |
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