CN208674254U - A kind of pole with blast resistance construction and the battery cap using it - Google Patents
A kind of pole with blast resistance construction and the battery cap using it Download PDFInfo
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- CN208674254U CN208674254U CN201821273915.XU CN201821273915U CN208674254U CN 208674254 U CN208674254 U CN 208674254U CN 201821273915 U CN201821273915 U CN 201821273915U CN 208674254 U CN208674254 U CN 208674254U
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- pole
- hole
- rupture disk
- gas vent
- explosion rupture
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- 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
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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model belongs to technical field of secondary batteries more particularly to a kind of pole with blast resistance construction and the battery cap using it.Pole with blast resistance construction includes pole ontology, explosion rupture disk and the gas vent through the setting of pole ontology；The explosion rupture disk is preset in one end of gas vent, and explosion rupture disk is connect with vent hole seal, and the space opened in gas vent with explosion rupture disk.Pole with blast resistance construction saves the occupancy to space on battery cap by the way that explosion rupture disk to be integrally disposed on pole；Explosion rupture disk is preset in one end of gas vent, so, explosion rupture disk not will receive the influence of top cover and enclosure material, can be connected and sealed by way of laser welding between explosion rupture disk and pole, improve sealing effect；Since explosion rupture disk and pole are welded in advance, not will receive the influence of remaining electrolyte, are improved yield rate；The space opened in gas vent with explosion rupture disk, ensure that explosion-proof reliability.
Description
Technical field
The utility model belongs to technical field of secondary batteries more particularly to a kind of pole with blast resistance construction and using it
Battery cap.
Background technique
Shell state classification has hard shell battery, soft-package battery other than the secondary cell of mainstream at present.Wherein hard shell is divided into aluminium again
Shell, plastic housing, steel shell etc..For hard shell battery, guarantee that the necessary method one of its safety is to maintain inside battery space and is negative
Pressure condition prevents battery bulging to release stress；Second is that setting explosion-proof valve, when cell internal pressure is more than a certain limit value,
Explosion-proof valve explosion or unlatching, avoid battery explosion.
The explosion-proof valve of general hard shell battery is arranged on the cover board, usually round, the rectangular or straight trough degree of lip-rounding.It is most of explosion-proof
Valve is identical as cover board material, and if it is plastics housing battery, the mode for generalling use screw-threaded coupling and/or rubber ring extruding is sealed,
Which sealing effect is poor；If it is aluminum hull or steel shell battery, using laser welding mode, sealing effect is excellent, durability
It is good.The form of above-mentioned explosion-proof valve setting on the cover board there are problems that occupying cover board space.
In view of the above-mentioned problems, number of patent application provides a kind of cylindrical power for 201410779563.5 patent application
The explosion-proof pole column structure of battery liquid-filling, liquid injection hole, explosion-proof valve are all combined on same pole, although solving, space is small to be asked
Topic, but disadvantage is also clearly: and explosion rupture disk need to weld after battery liquid-filling, which exists as liquid injection hole, remaining electrolyte
Easy burst point or fried fire, lead to poor sealing and lose sealing and explosion-proof, improve rejection rate when laser welding；And this method
Make the laser welding at explosion-proof valve as last procedure of cell sealing, inside battery can not be made to be in negative pressure state, increases
The bad risk such as added battery bulging, thickness to transfinite.
In view of the above-mentioned problems, providing one kind is able to solve poor sealing effect existing in the prior art, rejection rate and not
The pole with blast resistance construction and the battery cap using it of the high problem of yield.
Utility model content
(1) technical problems to be solved
The utility model provides a kind of pole with blast resistance construction, is able to solve sealing effect of the existing technology
Difference, rejection rate and the high problem of fraction defective.
Another purpose of the utility model is to propose a kind of battery cap, is used as described above with explosion-proof
The pole of structure.
(2) technical solution
In order to achieve the above object, the main technical schemes of the utility model use include:
A kind of pole with blast resistance construction comprising pole ontology, explosion rupture disk and the exhaust through the setting of pole ontology
Hole；
The explosion rupture disk is preset in one end of gas vent, and explosion rupture disk is connect with vent hole seal, and has in gas vent anti-
The space of quick-fried unlatching.
It preferably, further include protective film, the both ends of gas vent are stepped hole, and the stepped hole positioned at gas vent both ends is respectively
First end stepped hole and second end stepped hole；
The protective film is arranged at the step of first end stepped hole, and the step of second end stepped hole is arranged in explosion rupture disk
Place.
Preferably, the gas vent includes the first hole section set gradually from second end to first end, the second hole section, third
Hole section and the 4th hole section；
Wherein, the diameter of the first hole section is greater than the diameter of the second hole section, and the first hole section and the second hole section form second end rank
Terraced hole；
The diameter of third hole section is greater than the diameter of the 4th hole section, and third hole section and the 4th hole section form first end stepped hole；
The diameter of second hole section is greater than the diameter of third hole section, and half of the length of the second hole section not less than explosion rupture disk
Diameter.
Preferably, the pole ontology includes cylindrical body and the pedestal positioned at cylindrical member at one end, and the first of pole ontology
End face and second end face are smooth flat, and the second end face of the pole ontology is used for and cover plate for sealing.
Preferably, the first surface of the explosion rupture disk is provided with indentation or impression, and the of second surface and pole ontology
Biend is concordant.
Preferably, it is tightly connected by way of laser welding between the explosion rupture disk and pole ontology.
A kind of battery cap, wherein including as described above with the pole of blast resistance construction.
Preferably, including positive terminal, negative terminal, cover board, sealing rubber ring, lower plastic, liquid injection hole and upper plastic；
The positive terminal and/or negative terminal are the pole with blast resistance construction；
The positive terminal and negative terminal are worn on the cover board, and sealing rubber ring is arranged on positive terminal and negative terminal, anode
Column and negative terminal are connect by compression seal cushion rubber with cover plate for sealing；
Upper plastic and lower plastic are separately positioned on the first face and the second face of cover board, and the second of the positive terminal and negative terminal
End is socketed with a lower plastic, is respectively formed with upper plastic, and energy in positive terminal and negative terminal first end by Shooting Technique
Keep cover board, sealing rubber ring, the position of lower plastic relatively fixed；
It is disposed with rubber stopper and aluminium nail from inside to outside in liquid injection hole.
Preferably, the positive terminal passes through positive switching piece and connect with anode ear, and negative terminal is by cathode switching piece and bears
Tab connection；
Be provided with through-hole corresponding with gas vent on the corresponding switching piece of pole with blast resistance construction, the through-hole it is straight
Diameter is greater than the diameter of gas vent lower end.
Preferably, when series connection between single battery and it is in parallel when, by connection row's connection between pole, the row of being at least connected with and
One end of pole connection is provided with connection exhausting hole, and connection exhausting hole diameter is not less than the diameter of gas vent upper end；
When connection row connect with the pole with blast resistance construction, connection exhausting hole is arranged concentrically with gas vent.
(3) beneficial effect
The beneficial effects of the utility model are: the pole provided by the utility model with blast resistance construction, by will be explosion-proof
Piece is integrally disposed on pole, saves the occupancy to space on battery cap；Explosion rupture disk is preset in one end of gas vent, specifically
Refer to battery assembly before in advance by explosion rupture disk be arranged on gas vent, make explosion rupture disk and pole in battery assembling process
It is assembled in the form of component, so, explosion rupture disk not will receive the influence of top cover and enclosure material, between explosion rupture disk and pole
It can be connected and sealed by way of laser welding, improve sealing effect；Since explosion rupture disk and pole are to carry out in advance
Welding, it not will receive the influence of remaining electrolyte, improve yield rate；The space opened in gas vent with explosion rupture disk,
It ensure that explosion-proof reliability.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram for the pole with blast resistance construction that the utility model specific example provides；
Fig. 2 is the perspective view of the explosion for the pole with blast resistance construction that the utility model specific example provides；
Fig. 3 is the perspective bottom view for the pole with blast resistance construction that the utility model specific example provides；
Fig. 4 is the stereoscopic schematic diagram for the top cover that the utility model specific example provides；
Fig. 5 is the bottom view for the top cover that the utility model specific example provides；
Fig. 6 is the perspective view of the explosion for the top cover that the utility model specific example provides；
Fig. 7 is the positive aluminium switching piece schematic diagram that the utility model specific example provides；
Fig. 8 is that the switching piece that the utility model specific example provides (is omitted with the schematic diagram after pole laser welding in figure
Two core packets and two pairs of ultrasonic welding gaskets)；
Fig. 9 is that schematic diagram is arranged in the connection that the utility model specific example provides；
Figure 10 is that three batteries that the utility model specific example provides are gone here and there by connection row with pole laser welding
The schematic diagram of connection.
[description of symbols]
1: positive terminal；2: explosion rupture disk；3: protective film；4: negative terminal；5: liquid injection hole；6: sealing rubber ring；7: lower plastic；8: lid
Plate；9: rubber stopper；10: aluminium nail；Plastic on 11: the first；Plastic on 12: the second；13: positive switching piece；14: cathode switching piece；
15: arc-shaped bonding wire；16: insulation protection piece；17: connection row；18: laser bonding wire；
101: the first hole sections；102: the second hole sections: 103: third hole section；104: the four hole sections；105: positive cylindrical body；
106: positive pedestal；
401: cathode cylindrical body；402: cathode pedestal；
130: switching piece through-hole；131: the positive area Han Yin；The area 141: cathode Han Yin；
170: connection exhausting hole.
Specific embodiment
It is with reference to the accompanying drawing, right by specific embodiment in order to understand in order to preferably explain the utility model
The utility model is described in detail.
As shown in Figure 1 to Figure 3, the utility model discloses a kind of poles with blast resistance construction comprising pole ontology,
Explosion rupture disk 2 and the gas vent being arranged through pole ontology.
Explosion rupture disk 2 is preset in one end of gas vent, and explosion rupture disk 2 is connect with vent hole seal, and has in gas vent explosion-proof
The space that piece 2 is opened.
In the present embodiment, it by the way that explosion rupture disk 2 to be integrally disposed on pole, saves to space on battery cap
It occupies；Explosion rupture disk 2 is preset in one end of gas vent, specifically refers to and is in advance arranging the setting of explosion rupture disk 2 before battery assembly
On stomata, assemble explosion rupture disk 2 and pole in the form of component in battery assembling process, so, explosion rupture disk will not be by
To the influence of top cover and enclosure material, it can be connected and sealed, be mentioned by way of laser welding between explosion rupture disk 2 and pole
High sealing effect；Since explosion rupture disk and pole are welded in advance, not will receive the influence of remaining electrolyte, are mentioned
High yield rate；The space opened in gas vent with explosion rupture disk, ensure that explosion-proof reliability.
Pole ontology includes cylindrical body and the pedestal positioned at cylindrical member at one end, specifically, the diameter of cylindrical body be Ф 10~
Ф 30mm, pedestal are round or rectangular.The first end face and second end face of pole ontology are smooth flat.It is subsequent respectively with turn
Contact pin, connection row 17 carry out laser welding.
Pole with blast resistance construction further includes protective film 3, and the both ends of gas vent are stepped hole, positioned at gas vent both ends
Stepped hole is respectively first end stepped hole and second end stepped hole.
Protective film 3 is arranged at the step of first end stepped hole, and explosion rupture disk 2 is arranged at the step of second end stepped hole.
In the present embodiment, welding slag, the weldering bits generated when can prevent dust, the row of welded connecting 17 by the setting of protective film 3 are fallen
Enter in gas vent.
Specifically, gas vent includes the first hole section 101 set gradually from second end to first end, the second hole section 102,
Three hole sections 103 and the 4th hole section 104.
Wherein, the diameter of the first hole section 101 is greater than the diameter of the second hole section 102, the first hole section 101 and the second hole section 102
Form second end stepped hole.
The diameter of third hole section 103 is greater than the diameter of the 4th hole section 104, and third hole section 103 and the 4th hole section 104 form the
One end stepped hole.
The diameter of second hole section 102 is greater than the diameter of third hole section 103, and 102 length of the second hole section is not less than explosion-proof
The radius of piece 2 passes through such setting form, it is ensured that in gas vent there is enough explosion rupture disks 2 to open space.
Explosion rupture disk 2 be diameter 5~Ф of Ф 20mm circular piece or area in 25~450mm2Rectangular sheet, thickness exists
0.1~2mm.Its first surface has indentation or impression, and second surface is concordant with the second end face of pole ontology, explosion rupture disk 2 with
It is tightly connected by way of laser welding between pole ontology.
Protective film 3 be diameter 5~Ф of Ф 20mm circular piece or area in 25~450mm2Rectangular sheet, thickness exists
0.1~2mm.There is the round protective film through-hole of 0.1~Ф of Ф 5 in its center, and the setting of the protective film through-hole ensure that it is being realized
It is dust-proof, prevent welding slag, weldering bits while fall into gas vent purpose, additionally it is possible to realize the function of exhaust.
3 material of protective film is PP (polypropylene), PVC (polyvinyl chloride), PET (polyethylene terephthalate), PC (poly- carbon
Acid esters), one of PE (polyethylene).
In the present embodiment, a kind of specific constructive form of the pole of blast resistance construction is additionally provided, wherein pole and anti-
Quick-fried 2 is aluminum alloy material, and protective film 3 is PP material.
Wherein, the cylinder diameter of pole is Ф 17, and the diameter of the 4th hole section 104 is Ф 7, third hole section 103 and the 4th
Hole section 104 is formed at the step of first end stepped hole for placing the protective film 3 of diameter Ф 8.Pole second end is rectangular base,
For placing the explosion rupture disk 2 of Ф 14 at the step for the second end stepped hole that first hole section 101 and the second hole section 102 are formed.Wherein
The second end face of explosion rupture disk 2 and the second end face flush of pole carry out laser welded seal in contact position.Second hole section
102 diameter of section is Ф 12, and the vertical range of the second hole section 102 is 7mm, not less than the radius R7mm of explosion rupture disk 2.
As shown in Fig. 4 to Figure 10, in the present embodiment, a kind of battery cap is additionally provided comprising positive terminal 1 is born
Pole 4, liquid injection hole 5, sealing rubber ring 6, lower plastic 7, cover board 8, upper plastic, switching piece and connection row 17.
Positive terminal 1, explosion rupture disk 2, positive switching piece 13 and connection arrange 17 material as one in aluminium, aluminium alloy, stainless steel
Kind.For the ease of welding, positive terminal 1 and explosion rupture disk 2 are identical material, and further, positive terminal 1 and explosion rupture disk 2 are closed by aluminium
Jin Jin is made.
Wherein, positive terminal 1 is the pole as described above with blast resistance construction.Negative terminal pedestal 402 under normal conditions
Material be copper, the material of positive terminal pedestal 106 is aluminium alloy, and the material of explosion rupture disk 2 is aluminium alloy, is welded between aluminium alloy and copper
Connect inconvenience, be a kind of preferred embodiment by the pole that positive terminal 1 is arranged to have blast resistance construction therefore, be not discharged certainly yet by
Negative terminal 4 is arranged to a possibility that pole with blast resistance construction.Such as, the pedestal of negative terminal 4 can also be adopted in some cases
Use aluminum alloy material.
Positive terminal 1 and negative terminal 4 are threaded through on cover board 8, are arranged with sealing rubber ring 6 on positive terminal 1 and negative terminal 4, just
Pole 1 and negative terminal 4 are tightly connected by sealing rubber ring 6 and cover board 8.
Upper plastic and lower plastic 7 are separately positioned on the outside and inside of cover board 8, and positive terminal 1 and negative terminal 4 pass through one respectively
A upper plastic is fixedly connected with cover board 8, and the upper plastic of fixed positive terminal 1 is plastic 11 on first, the upper plastic of fixed negative terminal 4
For plastic 12 on second.
Liquid injection hole 5 is disposed with aluminium nail 10 and rubber stopper 9 from inside to outside.
Positive terminal 1 passes through positive switching piece 13 and connect with anode ear, and negative terminal 4 is connected by cathode switching piece 14 and negative electrode lug
It connects.Switching piece through-hole 130 corresponding with gas vent is provided on positive switching piece 13, the diameter of the switching piece through-hole 130 is big
Diameter in gas vent lower end.Specifically, positive switching piece 13, main body are rectangular tab, thickness is in 0.5~3mm.It sets thereon
The switching piece through-hole 130 set is round or rectangular through-hole corresponding with 2 shape of explosion rupture disk.
Negative terminal 4 includes the copper cathode bottom of rectangle positioned at the aluminum cathode cylindrical body 401 of first end and positioned at second end
Seat 402, cathode pedestal 402 and cathode cylindrical body 401 are formed by friction welding.Positive terminal 1 includes the anode positioned at first end
Cylindrical body 105 and rectangle anode pedestal 106 positioned at second end, positive pedestal 106 and positive cylindrical body 105 are aluminium alloy materials
Matter.Corresponding, the positive switching piece 13 connecting with positive terminal 1 is aluminum alloy material, the cathode switching piece 14 connecting with negative terminal 4
For copper material.
Anode weldering print region 131 and cathode weldering print region are respectively arranged on positive switching piece 13 and cathode switching piece 14
141.In battery assembling process, by positive switching piece 13 and cathode switching piece 14 respectively with the positive and negative tab of two core packets into
Row ultrasonic bonding, the positive and negative tab of one of core packet weld in the positive area Han Yin 131 and cathode weldering print region 141 respectively.
There is the gasket with tab same material above the tab in the area Han Yin respectively, prevents tab weldering from splitting.Then battery cap overturning is laid flat,
The positive switching piece 13 of core packet will be welded with, cathode switching piece 14 is placed in positive terminal 1, the corresponding position of pedestal of negative terminal 4
(omission of figure core packet is not drawn into), carries out laser welding respectively.Wherein, positive switching piece 13 is formed with the positive melting of pedestal 106
Continuous arc-shaped bonding wire 15.The thickness of positive switching piece 13 and cathode switching piece 14 is all 0.7mm in the example, wherein anode
There is the circular through hole 130 of Ф 15 at 13 center of switching piece.
When between single battery series connection and it is in parallel when, by 17 connection of connection row between pole, the row of being at least connected with 17 and
One end that positive terminal 1 connects is provided with connection exhausting hole 170, and connection 170 diameter of exhausting hole is not less than the diameter of gas vent upper end,
When connection row 17 connect with positive terminal 1, connection exhausting hole 170 is arranged concentrically with gas vent.
Specifically, after single battery completes, series connection and parallel connection between single battery, using in pole upper surface
The mode of laser welding connection row.Insulation protection piece 16 is pasted on the example battery cover board, the connection row 17 between battery is thickness
The single layer aluminum strip thin slice of 1mm, corresponding positions are equipped with the round connection exhausting hole 170 of several Ф 8, each connection exhausting hole
170 is concentric with welded pole.Laser bonding wire 18 on connection row 17 is continuous circular arc line, and bonding wire, which walks, avoids connection exhausting hole
170 and positive terminal on explosion rupture disk 2, connection row 17 is firmly welded together with pole.
In the present embodiment, additionally provide a kind of battery using above-mentioned battery cap, the shell of the battery be aluminum hull,
Plastic housing, steel shell or stainless steel case.The shape of battery is rectangular, cylindrical or special-shaped.
Technical principle of the utility model has been described above with reference to specific embodiments, these descriptions are intended merely to explain this reality
With novel principle, it cannot be construed to the limitation to scope of protection of the utility model in any way.Based on explaining herein, ability
The technical staff in domain, which does not need to pay for creative labor, can associate with other specific implementation modes of this utility model, these
Mode is fallen within the protection scope of the utility model.
Claims (10)
1. a kind of pole with blast resistance construction, it is characterised in that: be arranged including pole ontology, explosion rupture disk and through pole ontology
Gas vent；
The explosion rupture disk is preset in one end of gas vent, and explosion rupture disk is connect with vent hole seal, and has explosion rupture disk in gas vent
The space of unlatching.
2. the pole according to claim 1 with blast resistance construction, which is characterized in that it further include protective film, gas vent
Both ends are stepped hole, and the stepped hole positioned at gas vent both ends is respectively first end stepped hole and second end stepped hole；
The protective film is arranged at the step of first end stepped hole, and explosion rupture disk is arranged at the step of second end stepped hole.
3. the pole according to claim 2 with blast resistance construction, which is characterized in that the gas vent includes from second end
The first hole section, the second hole section, third hole section and the 4th hole section set gradually to first end；
Wherein, the diameter of the first hole section is greater than the diameter of the second hole section, and the first hole section and the second hole section form second end stepped hole；
The diameter of third hole section is greater than the diameter of the 4th hole section, and third hole section and the 4th hole section form first end stepped hole；
The diameter of second hole section is greater than the diameter of third hole section, and the length of the second hole section is not less than the radius of explosion rupture disk.
4. the pole according to claim 1 with blast resistance construction, which is characterized in that the pole ontology includes cylindrical body
With the pedestal for being located at cylindrical member at one end, and the first end face of pole ontology and second end face are smooth flat, the pole sheet
The second end face of body is used for and cover plate for sealing.
5. the pole according to claim 1 with blast resistance construction, which is characterized in that the first surface of the explosion rupture disk is set
It is equipped with indentation or impression, second surface is concordant with the second end face of pole ontology.
6. the pole according to claim 1 with blast resistance construction, which is characterized in that the explosion rupture disk and pole ontology it
Between be tightly connected by way of laser welding.
7. a kind of battery cap, which is characterized in that wherein, there is explosion-proof knot including as claimed in any one of claims 1 to 6
The pole of structure.
8. battery cap according to claim 7, which is characterized in that including positive terminal, negative terminal, cover board, sealing rubber ring,
Lower plastic, liquid injection hole and upper plastic；
The positive terminal and/or negative terminal are the pole with blast resistance construction；
The positive terminal and negative terminal are worn on the cover board, are arranged with sealing rubber ring on positive terminal and negative terminal, positive terminal and
Negative terminal is connect by compression seal cushion rubber with cover plate for sealing；
Upper plastic and lower plastic are separately positioned on the first face and the second face of cover board, and the second end of the positive terminal and negative terminal is equal
It is socketed with lower plastic, upper plastic is respectively formed in positive terminal and negative terminal first end by Shooting Technique, and cover board, close can be made
Sealing rubber ring, the position of lower plastic are relatively fixed；
It is disposed with rubber stopper and aluminium nail from inside to outside in liquid injection hole.
9. battery cap according to claim 8, which is characterized in that the positive terminal passes through positive switching piece and anode ear
Connection, negative terminal are connect by cathode switching piece with negative electrode lug；
It is provided with through-hole corresponding with gas vent on the corresponding switching piece of pole with blast resistance construction, the diameter of the through-hole is big
Diameter in gas vent lower end.
10. battery cap according to claim 8, which is characterized in that when series connection between single battery and parallel connection, pole
Between by connection row's connection, one end for connecting with pole of connection row is provided with connection exhausting hole, it is not small to connect exhausting hole diameter
Diameter in gas vent upper end；
When connection row connect with the pole with blast resistance construction, connection exhausting hole is arranged concentrically with gas vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821273915.XU CN208674254U (en) | 2018-08-08 | 2018-08-08 | A kind of pole with blast resistance construction and the battery cap using it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821273915.XU CN208674254U (en) | 2018-08-08 | 2018-08-08 | A kind of pole with blast resistance construction and the battery cap using it |
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| Publication Number | Publication Date |
|---|---|
| CN208674254U true CN208674254U (en) | 2019-03-29 |
Family
ID=65835891
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821273915.XU Active CN208674254U (en) | 2018-08-08 | 2018-08-08 | A kind of pole with blast resistance construction and the battery cap using it |
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| Country | Link |
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| CN110323367A (en) * | 2019-07-04 | 2019-10-11 | 湖北金泉新材料有限责任公司 | Top cover, the assembly method of top cover and battery |
| CN110379976A (en) * | 2019-06-20 | 2019-10-25 | 合肥国轩高科动力能源有限公司 | Safety protection type lithium ion battery cover plate |
| CN110400900A (en) * | 2019-06-20 | 2019-11-01 | 合肥国轩高科动力能源有限公司 | Sealing method for improving leakage rate of lithium ion battery cell |
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| CN115332719A (en) * | 2022-10-12 | 2022-11-11 | 深圳海润新能源科技有限公司 | Top cover assembly, battery and preparation method of battery |
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| CN110379976A (en) * | 2019-06-20 | 2019-10-25 | 合肥国轩高科动力能源有限公司 | Safety protection type lithium ion battery cover plate |
| CN110400900A (en) * | 2019-06-20 | 2019-11-01 | 合肥国轩高科动力能源有限公司 | Sealing method for improving leakage rate of lithium ion battery cell |
| CN110379976B (en) * | 2019-06-20 | 2021-12-14 | 合肥国轩高科动力能源有限公司 | Safety protection type lithium ion battery cover plate |
| CN110400900B (en) * | 2019-06-20 | 2022-04-12 | 合肥国轩高科动力能源有限公司 | Sealing method for improving leakage rate of lithium ion battery cell |
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| CN110943393A (en) * | 2019-11-29 | 2020-03-31 | 河南平高通用电气有限公司 | Gas insulation looped netowrk cabinet |
| CN112382813A (en) * | 2021-01-14 | 2021-02-19 | 蜂巢能源科技有限公司 | A mould piece, electric core and battery module down for electric core |
| CN112382813B (en) * | 2021-01-14 | 2021-04-20 | 蜂巢能源科技有限公司 | A mould piece, electric core and battery module down for electric core |
| CN114649614A (en) * | 2022-03-25 | 2022-06-21 | 河南省鹏辉电源有限公司 | Pole and battery cover plate |
| WO2023216226A1 (en) * | 2022-05-13 | 2023-11-16 | 宁德时代新能源科技股份有限公司 | Battery end cover assembly, battery cell, battery and electrical device |
| CN115332719A (en) * | 2022-10-12 | 2022-11-11 | 深圳海润新能源科技有限公司 | Top cover assembly, battery and preparation method of battery |
| CN115332719B (en) * | 2022-10-12 | 2023-08-04 | 深圳海辰储能控制技术有限公司 | Top cover assembly, battery and preparation method of battery |
| CN115579591A (en) * | 2022-11-14 | 2023-01-06 | 深圳海润新能源科技有限公司 | Cover plate assembly, battery assembling method, battery pack and electric equipment |
| US11901577B1 (en) * | 2022-11-14 | 2024-02-13 | Shenzhen Hithium Energy Storage Technology Co., Ltd. | Cover plate assembly, battery, and method for assembling battery |
| EP4369481A1 (en) * | 2022-11-14 | 2024-05-15 | Shenzhen Hithium Energy Storage Technology Co., Ltd. | Cover plate assembly, battery, method for assembling battery, battery pack, and electricity-consumption device |
| WO2024104164A1 (en) * | 2022-11-14 | 2024-05-23 | 深圳海辰储能科技有限公司 | Cover plate assembly, battery, battery assembly method, battery pack and electric device |
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