CN211017132U - Structure for encapsulating battery pole and battery top cover - Google Patents
Structure for encapsulating battery pole and battery top cover Download PDFInfo
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- CN211017132U CN211017132U CN201921726286.6U CN201921726286U CN211017132U CN 211017132 U CN211017132 U CN 211017132U CN 201921726286 U CN201921726286 U CN 201921726286U CN 211017132 U CN211017132 U CN 211017132U
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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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Abstract
The utility model belongs to the technical field of the battery production is made, concretely relates to structure of battery utmost point post rubber coating, including utmost point post, insulating part and sealing washer, the insulating part cover is located the upper portion of utmost point post, the sealing washer cover is located the lower part of utmost point post, the insulating part with be provided with protection piece between the sealing washer, protection piece with utmost point post, top cap piece electricity are connected. The utility model discloses a sealing washer is kept apart to protection piece, damages the sealing washer when preventing that the insulating part from moulding plastics, helps improving the security performance of electric core.
Description
Technical Field
The utility model belongs to the technical field of the battery production is made, concretely relates to structure and battery top cap of battery utmost point post rubber coating.
Background
Nowadays, with the development of modern society and the enhancement of environmental awareness of people, more and more devices select a lithium battery as a power supply, such as a mobile phone, a notebook computer, an electric tool, an electric automobile and the like, which provides a wide space for the application and development of the lithium battery. Among them, lithium batteries used in electric tools, electric vehicles, and the like are generally called power batteries.
In the design of power battery top cap, set up the shaping structure of moulding plastics between top cap and the utmost point post, under the ordinary condition, adopt electrically conductive plastic rubber coating utmost point post, make the top cap piece be connected with the positive post electricity, electrically conductive plastic resistance is more than the ohmic level, thereby guarantee the electric potential of top cap and positive post, the sealing washer is generally installed before the rubber coating is moulded plastics, when moulding plastics, the sealing washer can be harmd to impact force and the high temperature that the plastic produced, cause deformation, influence such as sealed harmfulness, thereby reduce electric core security performance, even electric core is scrapped.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the utility model lies in: to prior art not enough, provide a structure of battery utmost point post rubber coating, keep apart the sealing washer through protection piece, damage the sealing washer when preventing that the insulating part from moulding plastics helps improving the security performance of electric core.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a structure of battery utmost point post rubber coating, includes utmost point post, insulating part and sealing washer, the insulating part cover is located the upper portion of utmost point post, the sealing washer cover is located the lower part of utmost point post, the insulating part with be provided with protection piece between the sealing washer, protection piece with utmost point post, top cap piece electricity are connected.
As an improvement of the structure of a battery utmost point post rubber coating, utmost point post is the anodal post, protection piece is electrically conductive plastic, the resistance value of electrically conductive plastic is 0.1m omega ~50000 omega.
As an improvement of the structure of a battery utmost point post rubber coating, protection piece is by polyphenylene sulfide PPS, polysulfone PSU, polytetrafluoroethylene PFA, phthalic acid butanediol ester PBT, polyamide PA, nano-material or polypropylene PP integrated into one piece structure.
As an improvement of the structure of a battery utmost point post rubber coating, utmost point post is the negative pole post, protection piece is insulating plastic.
As an improvement of the structure of a battery utmost point post rubber coating, utmost point post with protection piece assembly synthetic positive post or negative pole post, and install in the top cap piece.
As an improvement of the structure of a battery utmost point post rubber coating, utmost point post includes the bottom plate and is fixed in the cylinder of bottom plate, the top of cylinder is provided with first step, the bottom of cylinder is provided with the second step, first step with be formed with the recess between the second step, the inner wall of insulating part with the recess cooperatees.
As an improvement of the structure of a battery utmost point post rubber coating, the structure of bottom plate is square body structure, cylinder structure, round platform structure or elliptical column structure, the shape of cylinder is square, oval or circular.
As an improvement of the structure of a battery utmost point post rubber coating, protection piece cover is located the outside of second step, the sealing washer cover is located the outside of protection piece.
As an improvement of the structure of a battery utmost point post rubber coating, the top of protection piece is provided with the boss, the boss support in the bottom of insulating part.
A second object of the utility model is to provide a battery top cap, reach the structure like above-mentioned battery utmost point post rubber coating including the top cap piece, the top cap piece is provided with utmost point post through-hole, the top of utmost point post through-hole is formed with first concave part, the insulating part inlay in first concave part.
It should be noted that: the top of utmost point post through-hole is formed with first concave part for the insulating part can partly imbed the top cap piece, can reduce the whole height of insulating part and top cap piece, thereby improves the energy density of battery, and the function that the battery was not only guaranteed in this kind of design is not influenced, can also reduce the top cap and occupy the inside space of battery, makes the inside bigger electric core that can place of battery, thereby improves the energy density of battery.
As an improvement of a battery top cap, plastic under the top cap piece bottom is installed, the top of utmost point post through-hole is formed with the second concave part, the second concave part is used for the embedding the sealing washer with plastic down, the top cap piece with install explosion-proof valve down between the plastic, the protection film is installed at the top of explosion-proof valve.
The beneficial effects of the utility model reside in that, the utility model discloses an utmost point post, insulating part and sealing washer, the insulating part cover is located the upper portion of utmost point post, the sealing washer cover is located the lower part of utmost point post, the insulating part with be provided with protection piece between the sealing washer, protection piece with utmost point post, top cap piece electricity are connected. Because the sealing ring is installed before the pole is encapsulated, when the injection molding is carried out, the impact force and high temperature generated by the plastic cement can damage the sealing ring, so that the influences of deformation, poor sealing and the like are caused, the safety performance of the battery cell is reduced, and even the battery cell is scrapped, therefore, a protection piece is arranged between the insulating piece and the sealing ring in advance, the effect of isolating the sealing ring, the pole and the top cover plate is achieved when the insulating piece is subjected to injection molding, and the sealing ring is prevented from being damaged by the injection molding impact force and high temperature; the sealing ring is made of fluororubber, so that a gap between the pole and the pole through hole can be sealed in the use process of the battery, the insulating part is prevented from being corroded by electrolyte through the gap, and the insulating pole and the pole through hole are also insulated; the insulating part is installed in the top cap, make utmost point post and top cap insulating, when the outside short circuit takes place for the battery, the top cap can be kept apart to the insulating part, reduce the probability that return circuit current damaged electric core, and simultaneously, the insulating part is through moulding plastics rubber coating utmost point post, play the effect of fastening utmost point post, prevent that utmost point post from droing from the top cap, help improving the steadiness of top cap, wherein, the insulating part is by the PPS material, the PSU material, the PFA material, the PBT material, the PA material, nano-material or PP material integrated into one piece structure, replace and adopt fluororubber preparation sealing washer 3. The utility model discloses a sealing washer is kept apart to protection piece, damages the sealing washer when preventing that the insulating part from moulding plastics, helps improving the security performance of electric core.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is an exploded view of embodiment 3 of the present invention;
fig. 3 is a schematic cross-sectional view of a first concave portion and a second concave portion according to example 4 of the present invention;
wherein: 1-pole column; 2-an insulator; 3-sealing ring; 4-a protective element; 11-a base plate; 12-a column; 121 — a first step; 122-a second step; 41-boss; 5-a groove; 6-top cover sheet; 61-pole through hole; 611 — a first recess; 612-a second recess; 7-discharging plastic; 8-an explosion-proof valve; 9-protective film.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", horizontal "and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The present invention will be described in further detail with reference to the accompanying drawings, which are not intended to limit the present invention.
Example 1
As shown in figure 1, the structure for encapsulating the battery pole comprises a pole 1, an insulating part 2 and a sealing ring 3, wherein the insulating part 2 is sleeved on the upper part of the pole 1, the sealing ring 3 is sleeved on the lower part of the pole 1, a protection part 4 is arranged between the insulating part 2 and the sealing ring 3, and the protection part 4 is electrically connected with the pole 1 and a top cover plate 6. Because the sealing ring 3 is installed before the pole 1 is encapsulated, when injection molding is carried out, impact force and high temperature generated by plastic cement can damage the sealing ring 3, so that the influences of deformation, poor sealing and the like are caused, the safety performance of a battery cell is reduced, and even the battery cell is scrapped, therefore, a protection piece 4 is arranged between the insulating piece 2 and the sealing ring 3 in advance, and when the insulating piece 2 is subjected to injection molding, the effect of isolating the sealing ring 3, the pole 1 and the top cover plate 6 is achieved, and the sealing ring 3 is prevented from being damaged by injection molding impact force and high temperature; the sealing ring 3 is made of fluororubber, so that a gap between the pole 1 and the pole through hole 61 can be sealed in the use process of the battery, the insulating part 2 is prevented from being corroded by electrolyte through the gap, and the insulating pole 1 and the pole through hole 61 are also insulated; the insulating part 2 is arranged on the top cover, so that the pole 1 is insulated from the top cover, when the battery is in external short circuit, the insulating part 2 can isolate the top cover, the probability that the electric core is damaged by the loop current is reduced, meanwhile, the insulating part 2 plays a role of fastening the pole 1 by injecting and encapsulating the pole 1, prevents the pole 1 from falling off from the top cover, is beneficial to improving the stability of the top cover, wherein, the insulating part 2 is an integrally formed structure made of PPS material, PSU material, PFA material, PBT material, PA material, nano material or PP material, the PS material, PSU material, PFA material, PBT material, PA material, nano material and PP material all have high temperature resistance, corrosion resistance, excellent mechanical property and insulating property, which is helpful for prolonging the service life of the insulating part 2, therefore, the quality of the battery is improved, and the battery has good environmental protection performance and fireproof effect and meets the environmental protection requirement in the field of new energy automobiles.
Preferably, the pole 1 is a positive pole, the protection member 4 is conductive plastic, and the resistance value of the conductive plastic is 0.1m omega-50000 omega. When the pole 1 is a positive pole, the protection piece 4 is conductive plastic, and the protection piece 4 plays a role in connecting the pole 1 and the top cover, so that the potential of the top cover and the positive pole is ensured, and meanwhile, when high temperature and high pressure occur in the battery, the positive pole and the negative pole are connected by normally turning the turning piece, so that an internal protection loop is formed, and the battery is prevented from explosion; in the prior art, the resistance block is generally arranged between the top cover and the pole post 1, or the insulating part 2 on the positive pole post is made of a conductive material, so that the top cover is electrically connected with the positive pole post, and the embodiment not only omits the step of arranging the resistance block between the top cover and the pole post 1, is beneficial to reducing the space occupied by the resistance block, but also omits the step of making the conductive material into the insulating part 2 on the positive pole post, and is beneficial to reducing the production cost of the insulating part 2; the resistance value of the conductive plastic is limited, the resistance value of the conductive plastic is prevented from being too large, the effect of guaranteeing the potential of the top cover and the positive post cannot be achieved, and meanwhile, the resistance value of the conductive plastic is prevented from being too small, so that the battery cell is easily burnt out in a short circuit process.
Preferably, the protector 4 is an integrally molded structure of polyphenylene sulfide PPS, polysulfone PSU, polytetrafluoroethylene PFA, polybutylene terephthalate PBT, polyamide PA, nano material or polypropylene PP. The protection member 4 is of an integrally formed structure of polyphenylene sulfide PPS, polysulfone PSU, polytetrafluoroethylene PFA, polybutylene terephthalate PBT, polyamide PA, nano materials or polypropylene PP, the overall rigidity of the protection member 4 can be improved, the service life of the protection member 4 can be prolonged, meanwhile, the production cost of the protection member 4 is reduced, the protection member can be designed as an assembly part, and the protection member has the advantages of being light in size and simple in production process, and is beneficial to improving the safety performance of a battery cell.
Preferably, the post 1 and the protector 4 are assembled to form a positive post or a negative post, and are mounted to the top cover 6.
Preferably, the pole 1 includes a bottom plate 11 and a column 12 fixed on the bottom plate 11, a first step 121 is disposed on the top of the column 12, a second step 122 is disposed on the bottom of the column 12, a groove 5 is formed between the first step 121 and the second step 122, and the inner wall of the insulating member 2 is matched with the groove 5. A groove 5 is formed between the first step 121 and the second step 122 and is used for fastening the tensile force of the insulating part 2 in the vertical direction, and meanwhile, the insulating part 2 is embedded into the groove 5 to play a role of fastening the pole 1, so that the insulating function of the top cover and the pole 1 is realized; wherein, the second step 122 can increase the area of contact between bottom plate 11 and the cylinder 12 to improve the steadiness between the two, wherein, first step 121 is for directly forming through stamping process, compares the machining process and forms recess 5, not only improves utmost point post 1's ability of overflowing, still avoids producing the wire in the course of working, has improved the security of battery.
Preferably, the structure of the bottom plate 11 is a square structure, a cylindrical structure, a circular truncated cone structure or an elliptic cylindrical structure, and the shape of the cylinder 12 is square, elliptic or circular. According to actual product requirements, the structure of the bottom plate 11 can be designed into a square structure, a cylindrical structure, a circular truncated cone structure or an elliptic cylinder structure, and the shape of the cylinder 12 can be designed into a square shape, an elliptic shape or a circular shape, and the shapes of the square structure, the elliptic structure or the circular cylindrical structure can be the same or different.
Preferably, the protection member 4 is sleeved outside the second step 122, and the sealing ring 3 is sleeved outside the protection member 4. The outside of second step 122 is located to protection piece 4 cover, and the outside of protection piece 4 is located to the sealing washer 3 cover, can improve the steadiness between protection piece 4, sealing washer 3 and utmost point post 1, prevents that protection piece 4 or sealing washer 3 from taking place the displacement in the use, leads to sealing washer 3 to receive impact force and the high temperature influence that the plastic produced easily, causes to receive deformation, sealed bad scheduling problem.
Preferably, the top of the protection member 4 is provided with a boss 41, and the boss 41 abuts against the bottom of the insulation member 2. The boss 41 abuts against the bottom of the insulating member 2, which is beneficial to reducing the gap between the protection member 4 and the insulating member 2, and simultaneously, the injection amount of the insulating member 2 is reduced, which is beneficial to reducing the production cost of the insulating member 2, thereby reducing the production cost of the top cover.
The utility model discloses a theory of operation is:
a protection part 4 is arranged between the insulating part 2 and the sealing ring 3 in advance, and plays a role in isolating the sealing ring 3, the pole 1 and the top cover plate 6 when the insulating part 2 is subjected to injection molding, so that the sealing ring 3 is prevented from being damaged by injection molding impact force and high temperature; the sealing ring 3 is made of fluororubber, so that a gap between the pole 1 and the pole through hole 61 can be sealed in the use process of the battery, the insulating part 2 is prevented from being corroded by electrolyte through the gap, and the insulating pole 1 and the pole through hole 61 are also insulated; insulating part 2 is installed in the top cap for utmost point post 1 is insulating with the top cap, and when the outside short circuit takes place for the battery, the top cap can be kept apart to insulating part 2, reduces the probability that return circuit current damaged electric core, and simultaneously, insulating part 2 plays the effect of fastening utmost point post 1 through moulding plastics rubber coating utmost point post 1, prevents that utmost point post 1 from droing from the top cap, helps improving the steadiness of top cap.
Example 2
The difference from example 1 is: the electrode post 1 of this embodiment is a negative electrode post, and the protection member 4 is an insulating plastic. When the pole 1 is a negative pole and the protection member 4 is an insulating plastic, the pole 1 is insulated from the top cover, when the battery is short-circuited, the insulating part 2 can isolate the top cover, reduce the probability that the electric core is damaged by the loop current, and can also be used for injection molding of the insulating part 2, plays the role of isolating the insulating part 2 from the sealing ring 3 and preventing the sealing ring from being damaged by injection molding impact force and high temperature, in the embodiment, the protection part 4 and the sealing ring 3 are sleeved on the negative pole column, however, the embodiment is not limited to this, in order to reduce the production cost of the top cap, the protection member 4 may not be disposed at the position corresponding to the negative pole, only the sealing ring 3 is disposed, the sealing ring 3 and the protection member 4 may also be made into an integral structure, namely, the seal ring 3 is made of PPS material, PSU material, PFA material, PBT material, PA material, nano material or PP material instead of fluororubber.
The other structures are the same as those of embodiment 1, and are not described again here.
Example 3
As shown in fig. 2, a battery top cover comprises a top cover plate 6 and the battery pole encapsulated structure, wherein the top cover plate 6 is provided with a pole through hole 61, a first concave part 611 is formed at the top of the pole through hole 61, and an insulating member 2 is embedded in the first concave part 611.
It should be noted that: the top of utmost point post through-hole 61 is formed with first concave part 611 for insulating part 2 can partly imbed top cover piece 6, can reduce insulating part 2 and top cover piece 6's whole height, thereby improve the energy density of battery, and the function of battery is not only guaranteed in this kind of design is not influenced, can also reduce the top cover and occupy the inside space of battery, makes the inside bigger electric core that can place of battery, thereby improves the energy density of battery.
Example 4
As shown in fig. 3, unlike example 3: lower plastic 7 is installed to the top cover plate 6 bottom of this embodiment, and the top of utmost point post 1 through-hole is formed with second concave part 612, and second concave part 612 is used for imbedding sealing washer 3 and lower plastic 7, installs explosion-proof valve 8 between top cover plate 6 and the lower plastic 7, and protection film 9 is installed at explosion-proof valve 8's top. Second concave part 612 not only can fasten sealing washer 3 and lower plastic 7, can also be with plastic 7 and sealing washer 3 embedding to top cap piece 6 down, play and reduce top cap piece 6, the effect of the whole height of lower plastic 7 and sealing washer 3, explosion-proof valve 8 can make the automatic quick pressure release of battery when the battery rises owing to overcharge, overdischarge, overflow and the inside short circuit of battery lead to the battery, avoid the battery explosion to lead to the emergence of incident, protection film 9 ensures that the function of explosion-proof valve 10 can realize.
The other structures are the same as those of embodiment 3, and are not described again.
Variations and modifications to the above-described embodiments may become apparent to those skilled in the art from the disclosure and teachings of the above description. Therefore, the present invention is not limited to the above-mentioned embodiments, and any obvious modifications, replacements or variations made by those skilled in the art on the basis of the present invention belong to the protection scope of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. The utility model provides a structure of battery utmost point post rubber coating which characterized in that: including utmost point post (1), insulating part (2) and sealing washer (3), insulating part (2) cover is located the upper portion of utmost point post (1), sealing washer (3) cover is located the lower part of utmost point post (1), insulating part (2) with be provided with protection piece (4) between sealing washer (3), protection piece (4) with utmost point post (1), top cap piece (6) electricity are connected.
2. The structure of claim 1, in which: the terminal post (1) is a positive electrode post, the protection piece (4) is conductive plastic, and the resistance value of the conductive plastic is 0.1m omega-50000 omega.
3. The structure of claim 2, in which: the protective piece (4) is of an integrally formed structure consisting of polyphenylene sulfide (PPS), Polysulfone (PSU), Polytetrafluoroethylene (PFA), polybutylene terephthalate (PBT), Polyamide (PA), nano materials or polypropylene (PP).
4. The structure of claim 1, in which: the pole column (1) is a negative pole column, and the protection piece (4) is insulating plastic.
5. The structure of claim 1, in which: and the pole column (1) and the protection piece (4) are assembled into a positive pole column or a negative pole column and are arranged on the top cover plate (6).
6. The structure of claim 1, in which: utmost point post (1) includes bottom plate (11) and is fixed in cylinder (12) of bottom plate (11), the top of cylinder (12) is provided with first step (121), the bottom of cylinder (12) is provided with second step (122), first step (121) with be formed with recess (5) between second step (122), the inner wall of insulating part (2) with recess (5) cooperate.
7. The structure of claim 6, in which: the protection piece (4) is sleeved on the outer side of the second step (122), and the sealing ring (3) is sleeved on the outer side of the protection piece (4).
8. The structure of claim 1, in which: the top of the protection piece (4) is provided with a boss (41), and the boss (41) abuts against the bottom of the insulation piece (2).
9. A battery top cap, characterized in that: the structure comprises a top cover plate (6) and the battery pole encapsulated structure according to any one of claims 1 to 8, wherein the top cover plate (6) is provided with a pole through hole (61), a first concave part (611) is formed at the top of the pole through hole (61), and the insulating part (2) is embedded in the first concave part (611).
10. A battery top cap in accordance with claim 9, wherein: plastic (7) down are installed to top cap piece (6) bottom, the top of utmost point post (1) through-hole is formed with second concave part (612), second concave part (612) are used for imbedding sealing washer (3) with lower plastic (7), top cap piece (6) with install explosion-proof valve (8) down between plastic (7), protection film (9) are installed at the top of explosion-proof valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921726286.6U CN211017132U (en) | 2019-10-15 | 2019-10-15 | Structure for encapsulating battery pole and battery top cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921726286.6U CN211017132U (en) | 2019-10-15 | 2019-10-15 | Structure for encapsulating battery pole and battery top cover |
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| CN211017132U true CN211017132U (en) | 2020-07-14 |
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| CN201921726286.6U Active CN211017132U (en) | 2019-10-15 | 2019-10-15 | Structure for encapsulating battery pole and battery top cover |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114300814A (en) * | 2021-12-17 | 2022-04-08 | 上海瑞浦青创新能源有限公司 | Pole structure for non-isopolar lug and top cover, welding method and lithium battery |
| CN114447413A (en) * | 2022-01-28 | 2022-05-06 | 天津市捷威动力工业有限公司 | Battery cover plate and battery |
| CN115566332A (en) * | 2022-11-11 | 2023-01-03 | 深圳海润新能源科技有限公司 | End cover assembly, energy storage device and electric equipment |
| US11894567B1 (en) | 2023-06-29 | 2024-02-06 | Shenzhen Hithium Energy Storage Control Technology Co. Ltd. | End cover assembly, energy storage device and electrical equipment |
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2019
- 2019-10-15 CN CN201921726286.6U patent/CN211017132U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114300814A (en) * | 2021-12-17 | 2022-04-08 | 上海瑞浦青创新能源有限公司 | Pole structure for non-isopolar lug and top cover, welding method and lithium battery |
| CN114300814B (en) * | 2021-12-17 | 2024-04-16 | 上海瑞浦青创新能源有限公司 | Pole structure for unequal pole lugs and top cover, welding method and lithium battery |
| CN114447413A (en) * | 2022-01-28 | 2022-05-06 | 天津市捷威动力工业有限公司 | Battery cover plate and battery |
| CN114447413B (en) * | 2022-01-28 | 2023-09-26 | 天津市捷威动力工业有限公司 | Battery cover plate and battery |
| CN115566332A (en) * | 2022-11-11 | 2023-01-03 | 深圳海润新能源科技有限公司 | End cover assembly, energy storage device and electric equipment |
| US11894567B1 (en) | 2023-06-29 | 2024-02-06 | Shenzhen Hithium Energy Storage Control Technology Co. Ltd. | End cover assembly, energy storage device and electrical equipment |
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Effective date of registration: 20220124 Address after: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zhengli new energy battery technology Co.,Ltd. Address before: 211100 Lantian Road 249, Airport Economic Development Zone, Jiangning District, Nanjing City, Jiangsu Province Patentee before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: SHENZHEN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. |