CN213150891U - Sealing washer, battery top cap and battery that battery top cap was used - Google Patents
Sealing washer, battery top cap and battery that battery top cap was used Download PDFInfo
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- CN213150891U CN213150891U CN202021753097.0U CN202021753097U CN213150891U CN 213150891 U CN213150891 U CN 213150891U CN 202021753097 U CN202021753097 U CN 202021753097U CN 213150891 U CN213150891 U CN 213150891U
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- sealing ring
- boss
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- 238000007789 sealing Methods 0.000 title claims abstract description 128
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 229920001971 elastomer Polymers 0.000 claims description 23
- 239000005060 rubber Substances 0.000 claims description 23
- 238000003466 welding Methods 0.000 claims description 16
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- 230000005611 electricity Effects 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229920000459 Nitrile rubber Polymers 0.000 description 4
- 229920001973 fluoroelastomer Polymers 0.000 description 4
- 229920001084 poly(chloroprene) Polymers 0.000 description 4
- 229920002379 silicone rubber Polymers 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
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- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
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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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- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model belongs to the technical field of battery production and manufacture, in particular to a sealing ring for a battery top cover, the battery top cover and a battery, which comprises a sealing ring body (1) provided with a through hole (11) for a battery pole to pass through, and is used for forming electric connection or electric insulation between the battery top cover and the pole; boss (2), sealing washer body (1) is followed through hole (11) downwardly extending forms boss (2), boss (2) are used for the cover to establish the top cap with between the utmost point post, and will utmost point post is fixed in the top cap. The utility model discloses can realize utmost point post and top cap and switch on, still save insulating part and resistance parts, help reducing the holistic height of top cap, improve top cap structure's space utilization.
Description
Technical Field
The utility model belongs to the technical field of the battery production is made, concretely relates to sealing washer, battery top cap and battery that battery top cap was used.
Background
Nowadays, green, high-efficiency secondary batteries are vigorously developed in various countries. The lithium ion battery as a novel secondary battery has the advantages of large energy density and power density, high working voltage, light weight, small volume, long cycle life, good safety, environmental protection and the like, and has wide application prospect in the aspects of portable electric appliances, electric tools, large-scale energy storage, electric traffic power supplies and the like. The battery generally includes electric core, casing, top cap, plastic part, sealing washer and lower plastic, wherein, electric core is acceptd in the casing, and the top cap is in the same place with the casing assembly, and the utmost point ear of electric core is connected with the utmost point post electricity on the top cap. The sealing ring is a ring body for sealing, is widely applied, and can be applied to many occasions due to good insulation and sealing performance. The sealing washer generally sets up the position at utmost point post, makes the battery inside with external isolated the coming, simultaneously, makes utmost point post and top cap piece electric property isolated, avoids the short circuit, is the indispensable component in the top cap of battery.
Secondly, in order to ensure the safety of the battery during the use process, a hard shell is generally adopted for assembly, and the hard shell for accommodating the battery core is a square metal shell (such as an aluminum shell or a steel shell). For example, when an aluminum case is adopted for assembly, the aluminum case corrosion problem is caused due to the potential difference between the aluminum potential and the battery anode potential, the aluminum case and the anode column must be conducted to eliminate the potential difference to solve the case corrosion problem, if the aluminum case and the anode column are directly conducted by metal, the resistance of the aluminum case is generally in the milliohm level, when the battery is in short circuit, the loop current of the battery is very large, ignition is easy to occur, and potential safety hazards such as ignition are caused, so that a resistance connection is needed between the anode and the case, and the case and the top cover are communicated, namely, a resistance part connection is added between the anode and the top cover.
However, the inventor finds that the existing scheme has at least the following defects: the existing top cover structure is provided with an insulating part, a resistance part and a sealing ring, so that the overall height of the top cover is increased, the top cover structure is complex, and the space utilization rate of the top cover structure is reduced.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the utility model lies in: to prior art's not enough, provide a sealing washer that battery top cap was used, can realize utmost point post and top cap and switch on, still saved insulating part and resistance part, help reducing the holistic height of top cap, improve top cap structure's space utilization.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a sealing ring for a battery top cover comprises a sealing ring body, wherein a through hole for a battery pole to pass through is formed in the sealing ring body, and the sealing ring is used for forming electric connection or electric insulation between the battery top cover and the pole; the boss, the sealing washer body is followed through hole downwardly extending forms the boss, the boss is used for the cover to establish the top cap with between the utmost point post, and will utmost point post is fixed in the top cap.
As an improvement of a sealing washer that battery top cap used, the external diameter of sealing washer body is greater than the external diameter of boss, highly being less than or equal to of sealing washer body the height of boss.
As an improvement of the sealing washer that a battery top cap used, the sealing washer body is conductive rubber.
As an improvement of a sealing washer that battery top cap used, the resistance value of sealing washer body is 1 omega ~ 1M omega.
As an improvement of a sealing washer that battery top cap used, conductive rubber includes electrically conductive base rubber and electrically conductive filler, electrically conductive base rubber is nitrile rubber, EP rubbers, chloroprene rubber, silicon rubber or fluororubber, electrically conductive filler is carbon black, carbon fiber or metal powder.
As an improvement of a sealing washer that battery top cap used, the sealing washer body is insulating rubber, the resistance value of sealing washer body is greater than 200M omega.
As an improvement of the sealing washer that a battery top cap used, the sealing washer body with the shape of boss is circular, oval or square.
A second object of the utility model is to provide a battery top cap, include: the top cover plate is provided with a pole through hole and is provided with a first pole and a second pole with the polarity opposite to that of the first pole; according to the sealing ring, the two sealing rings are respectively sleeved on the first pole column and the second pole column and are in interference fit with the pole column through hole, the first pole column is electrically connected with the top cover plate through the sealing ring, and the second pole column is electrically insulated from the top cover plate through the sealing ring.
As an improvement of a battery top cap, the top of utmost point post through-hole be provided with the concave part, the sealing washer body inlay in the concave part, battery top cap still includes insulating part and welding, the insulating part is fixed the bottom of top cap piece, the welding sets up the bottom of insulating part, the tip butt of boss in the insulating part and/or the welding.
The third object of the present invention is to provide a battery, including: a housing provided with an opening; the battery cell is arranged in the shell and comprises a first tab and a second tab with the polarity opposite to that of the first tab; according to the battery top cover, the top cover plate is arranged on the opening, the first pole lug is electrically connected with the first pole column, and the second pole lug is electrically connected with the second pole column.
The utility model has the advantages that the utility model comprises a sealing ring body, which is provided with a through hole for the battery pole to pass through, and is used for forming electric connection or electric insulation between the battery top cover and the pole; the boss, the sealing washer body is followed through hole downwardly extending forms the boss, the boss is used for the cover to establish the top cap with between the utmost point post, and will utmost point post is fixed in the top cap. Because the existing top cover structure is provided with the insulating part, the resistance part and the sealing ring, the integral height of the top cover is increased, the top cover structure is complex, and the space utilization rate of the top cover structure is reduced, so that the sealing ring is sleeved between the top cover and the pole column to form electric connection between the battery top cover and the pole column, and compared with the existing top cover structure, the resistance part is omitted, the integral height of the top cover is reduced, and the space utilization rate of the integral top cover is improved; the sealing washer body forms the boss along through hole downwardly extending, the boss cover is established in the outside of utmost point post, be fixed in the top cap with utmost point post through interference fit, make the boss be in the state of compression, play the effect of fastening fixed utmost point post, still make the boss closely cooperate with utmost point post and top cap respectively, help improving top cap structure's leakproofness, compare the utmost point post fixed knot who has the top cap and construct, saved and fixed utmost point post with insulating part, help reducing the whole height of top cap, can also reduce the manufacturing cost of top cap. The sealing washer can be under the circumstances of having saved other surplus parts for realize the electricity through the sealing washer body between top cap and the utmost point post and be connected, and make the boss be in the state of compressed through interference fit, make the boss closely cooperate with utmost point post and top cap respectively, help improving top cap structure's leakproofness. The utility model discloses can realize utmost point post and top cap and switch on, still save insulating part and resistance parts, help reducing the holistic height of top cap, improve top cap structure's space utilization.
Drawings
Features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic cross-sectional structure diagram of a first embodiment of the present invention.
Fig. 3 is a schematic sectional view of a fourth embodiment of the present invention.
Fig. 4 is a schematic sectional exploded view of a fourth embodiment of the present invention.
Fig. 5 is a schematic cross-sectional view of a sixth embodiment of the present invention.
Wherein the reference numerals are as follows:
1-a seal ring body; 11-a through hole;
2-boss;
3-top cover sheet;
31-pole through hole; 311-a recess;
41-a first pole; 42-a second pole;
5-an insulating member;
6-welding parts.
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.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
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 fig. 1 to 5, but the present invention is not limited thereto.
Implementation mode one
A sealing ring for a battery top cover comprises a sealing ring body 1, a sealing ring body and a sealing ring cover, wherein the sealing ring body is provided with a through hole 11 for a battery pole to pass through and is used for forming electric connection or electric insulation between the battery top cover and the pole; the boss 2, sealing washer body 1 along through hole 11 downwardly extending form boss 2, boss 2 is used for the cover to establish between top cap and utmost point post to be fixed in the top cap with utmost point post.
Because the existing top cover structure is provided with the insulating part, the resistance part and the sealing ring, the integral height of the top cover is increased, the top cover structure is complex, and the space utilization rate of the top cover structure is reduced, so that the battery top cover and the pole are electrically connected by sleeving the sealing ring between the top cover and the pole as shown in the figures 1 and 2, and compared with the existing top cover structure, the existing top cover structure omits the installation of the resistance part, is beneficial to reducing the integral height of the top cover and improves the space utilization rate of the integral top cover; sealing washer body 1 forms boss 2 along 11 downwardly extending in through hole, 2 covers of boss are established in the outside of utmost point post, be fixed in the top cap with utmost point post through interference fit, make boss 2 be in the state of compression, play the effect of fastening fixed utmost point post, still make boss 2 closely cooperate with utmost point post and top cap respectively, help improving top cap structure's leakproofness, compare the utmost point post fixed knot who has the top cap and construct, saved and fixed utmost point post with insulating part, help reducing the whole height of top cap, can also reduce the manufacturing cost of top cap.
The state that the boss 2 is compressed means that the boss 2 is always compressed in the compressing direction after the battery top cover is assembled, and the compressing direction is the axial direction of the pole through hole 31.
The sealing washer of this embodiment can be under the circumstances of having saved other surplus parts for realize the electricity through sealing washer body 1 between top cap and the utmost point post and be connected, and make boss 2 be in the state of compressed through interference fit, make boss 2 closely cooperate with utmost point post and top cap respectively, help improving top cap structure's leakproofness.
In the sealing ring for the battery top cover according to the utility model, because the outer diameter of the sealing ring body 1 is larger than the outer diameter of the boss 2, and the boss 2 is sleeved outside the pole, the pole is fixed in the pole through hole 31 by interference fit, the part of the sealing ring body 1 which is more than the boss 2 can be fixed above the pole through hole 31, which plays a role in limiting the downward movement of the sealing ring body 1, thereby improving the stability of the pole; because the height that highly is less than or equal to boss 2 of sealing washer body 1 can surround utmost point post through-hole 3's inner wall, prevents utmost point post and utmost point post through-hole 3 contact, reduces the probability that utmost point post and the interior wire of utmost point post through-hole 3 take place the friction, simultaneously, makes the sealing washer laminate utmost point post through-hole 3 and utmost point post more, fills the gap between utmost point post and the utmost point post through-hole 3, prevents that the top cap from taking place to leak gas, helps improving the leakproofness of battery top cap.
In the sealing ring for the battery top cover according to the utility model, the sealing ring body 1 is conductive rubber, the resistance value of the sealing ring body 1 is 1 Ω -1M Ω, through the sealing ring body 1, set up between the top cover plate 3 and the first utmost point post 41, and provide stable resistance value, when the first utmost point post 41 is the positive post, can prevent to lead to the potential difference between the positive post and the top cover plate 3 to increase because the resistance value between them deviates from the setting value after connecting the top cover plate 3 and the first utmost point post 41 electricity, avoid the potential of the top cover plate 3 to reduce to below the critical potential value that the casing corrodes, cause the problem that top cover plate 3 and casing are corroded by electrolyte once more; the range of the resistance value of injecing sealing washer body 1 prevents that the resistance value of sealing washer body 1 is too big, leads to unable formation electricity between battery top cap and one of them utmost point post to be connected, prevents sealing washer body 1's resistance value undersize simultaneously, and its return circuit current is very big when the battery takes place the short circuit, easily appears striking sparks and then causes potential safety hazards such as catching fire.
According to the utility model discloses an in the sealing washer that battery top cap was used, conductive rubber includes electrically conductive base rubber and electrically conductive filler, and electrically conductive base rubber is nitrile rubber, EP rubbers, chloroprene rubber, silicon rubber or fluororubber, and electrically conductive filler is carbon black, carbon fiber or metal powder. The sealing ring is formed by injection molding or die cutting of nitrile rubber, ethylene propylene rubber, chloroprene rubber, silicon rubber or fluororubber, and is made into an assembly part, so that the sealing ring has good electrical insulation performance, high heat resistance, oil resistance, solvent resistance, wear resistance, moisture resistance and low temperature resistance, and the service life of the sealing sleeve is prolonged.
In the sealing washer that is used according to the utility model discloses an among the sealing washer that the battery top cap was used, the shape of sealing washer body 1 and boss 2 is circular. According to the model of specific battery, the shape of sealing washer body 1 and boss 2 all designs for circularly, nevertheless the utility model discloses do not use this as the limit, the shape of sealing washer body 1 and boss 2 also can not be identical, satisfy sealing washer cooperation top cap structure can.
The utility model discloses a theory of operation is:
the sealing ring is sleeved between the top cover and the pole, so that the battery top cover and the pole are electrically connected, and compared with the existing top cover structure, the structure saves a resistor part, is beneficial to reducing the overall height of the top cover and improving the overall space utilization rate of the top cover; sealing washer body 1 forms boss 2 along 11 downwardly extending in through hole, 2 covers of boss are established in the outside of utmost point post, be fixed in the top cap with utmost point post through interference fit, make boss 2 be in the state of compression, play the effect of fastening fixed utmost point post, still make boss 2 closely cooperate with utmost point post and top cap respectively, help improving top cap structure's leakproofness, compare the utmost point post fixed knot who has the top cap and construct, saved and fixed utmost point post with insulating part, help reducing the whole height of top cap, can also reduce the manufacturing cost of top cap.
The sealing washer can be under the circumstances of having saved other surplus parts for realize the electricity through sealing washer body 1 between top cap and the utmost point post and connect, and make boss 2 be in the state of compressed through interference fit, make boss 2 closely cooperate with utmost point post and top cap respectively, help improving top cap structure's leakproofness.
Second embodiment
The difference from the first embodiment is that: the conductive rubber of the embodiment comprises conductive base rubber and conductive filler, wherein the conductive base rubber is nitrile rubber, ethylene propylene rubber, chloroprene rubber, silicon rubber or fluororubber, the conductive filler is carbon black, carbon fiber or metal powder, and the shapes of the sealing ring body 1 and the boss 2 are both oval. The conductive rubber can be supported by adding conductive filler into conductive base rubber, specifically, the resistance value of the conductive rubber can be adjusted by changing the adding part of the conductive filler, and for example, the adding part of the conductive rubber filler can be 5-550 parts by mass; according to the model of specific battery, the shape of sealing washer body 1 and boss 2 all designs for oval, nevertheless the utility model discloses do not use this as the limit, the shape of sealing washer body 1 and boss 2 also can not be the same, satisfy sealing washer cooperation top cap structure can.
Other structures are the same as those of the first embodiment, and are not described herein again.
Third embodiment
The difference from the first embodiment is that: referring to fig. 5, the seal ring body 1 of the present embodiment is made of insulating rubber, the resistance value of the seal ring body 1 is greater than 200M Ω, and the seal ring body 1 and the boss 2 are both square. Because the negative pole column of the top cover needs to be insulated from the top cover, the sealing ring body 1 sleeved on the negative pole column is made of insulating rubber, when the sealing ring body 1 is made of insulating rubber, the resistance value of the sealing ring body 1 is limited, and the situation that the electric insulating top cover and the pole cannot be achieved due to the fact that the resistance value of the sealing ring body 1 is too small is prevented; according to the model of specific battery, the shape of sealing washer body 1 and boss 2 all designs for squarely, nevertheless the utility model discloses do not use this as the limit, the shape of sealing washer body 1 and boss 2 also can not be the same, satisfy sealing washer cooperation top cap structure can.
Other structures are the same as those of the first embodiment, and are not described herein again.
Embodiment IV
A battery top cover comprises a top cover plate 3, a first pole column 41 and a second pole column 42, wherein the top cover plate is provided with a pole column through hole 31, and the first pole column 41 and the second pole column 42 are installed; as the first embodiment of the sealing ring, two sealing rings are respectively sleeved on the first pole column 41 and the second pole column 42 and are in interference fit with the pole column through hole 31, the first pole column 41 is electrically connected with the top cover plate 3 through the sealing ring, and the second pole column 42 is electrically insulated from the top cover plate 3 through the sealing ring.
It should be noted that: referring to fig. 3 and 4, first utmost point post 41 is the positive post, second utmost point post 42 is the negative pole post, first utmost point post 41 and second utmost point post 42 are located to two sealing washers cover respectively, play first utmost point post 41 and top cap piece 3 electricity connection effect respectively, and second utmost point post 42 and the electrically insulating effect of top cap piece 3, make casing and positive post switch on, eliminate the potential difference and solve the casing corrosion problem, still saved installation resistance part, help reducing the top cap overall height, improve the holistic space utilization of top cap, and make boss 2 be in the state of compressed through interference fit, make boss 2 closely cooperate with utmost point post and top cap respectively, help improving the leakproofness of top cap structure.
In the battery top cap according to the present invention, referring to fig. 3 and 4, the battery top cap further includes an insulating member 5 and a welding member 6, the insulating member 5 is fixed at the bottom of the top cap plate 3, the welding member 6 is disposed at the bottom of the insulating member 5, and the end of the boss 2 abuts against the insulating member 5 and/or the welding member 6. Weld the welding 6 in the bottom of first utmost point post 41 or second utmost point post 42 for welding 6 is fixed in the bottom surface of top cover plate 3 through insulating part 5, and insulating part 5 plays the effect of the bottom surface of insulating welding 6 and top cover plate 3, and welding 6 is fixed in the bottom surface of top cover plate 3, and the cooperation utmost point post passes through the sealing washer fastening at top cover plate 3, is equivalent to the bottom surface of the bottom card of utmost point post at top cover plate 3, helps improving the steadiness between utmost point post and the top cover plate 3.
Fifth embodiment
A battery top cover comprises a top cover plate 3, a first pole column 41 and a second pole column 42, wherein the top cover plate is provided with a pole column through hole 31, and the first pole column 41 and the second pole column 42 are installed; in the second embodiment, the two sealing rings are respectively sleeved on the first pole column 41 and the second pole column 42 and are in interference fit with the pole column through hole 31, the first pole column 41 is electrically connected with the top cover plate 3 through the sealing ring, and the second pole column 42 is electrically insulated from the top cover plate 3 through the sealing ring.
It should be noted that: the top cover 3 is made of metal, and may be made of the same material as the housing, for example, and has a size and shape matching the opening of the housing so as to be attachable to the opening of the housing. Be provided with utmost point post through-hole 31, notes liquid hole and explosion-proof valve on the top cover plate 3, annotate the liquid hole and form on top cover plate 3 according to predetermined size to close the opening part of casing and with casing sealing connection back at top cover plate 3 lid, can pour into the electrolyte into in the accommodation space of casing through annotating the liquid hole. The explosion-proof valve may adopt a structure of an explosion-proof plate, which is provided at a substantially middle position of the top cover plate 3, and when the internal pressure of the secondary battery is excessively large due to gas generated due to overcharge, overdischarge, or overheating of the battery, the explosion-proof plate in the explosion-proof valve may be broken, so that the gas formed inside the secondary battery may be discharged to the outside through the through-hole of the explosion-proof valve, whereby the explosion of the battery can be prevented.
In the battery top cap according to the present invention, the top of the pole through hole 31 is provided with a concave portion 311, and the sealing ring body 1 is embedded in the concave portion 311. The top of utmost point post through-hole 31 is provided with concave part 311, can prevent that sealing washer body 1 from taking place the displacement of horizontal direction with the partial embedding of sealing washer body to top cap piece 3, helps improving the steadiness between top cap piece 3 and the sealing washer body 1, still helps reducing the holistic thickness of top cap structure.
Sixth embodiment
Referring to fig. 5, a battery top cap includes a top cover plate 3, which is provided with a pole through hole 31 and is provided with a first pole 41 and a second pole 42 with opposite polarity to the first pole 41; like the sealing ring of the third embodiment, two sealing rings are respectively sleeved on the first pole column 41 and the second pole column 42 and are in interference fit with the pole column through hole 31, the first pole column 41 is electrically connected with the top cover plate 3 through the sealing ring, and the second pole column 42 is electrically insulated from the top cover plate 3 through the sealing ring.
Seventh embodiment
A battery, comprising: a housing provided with an opening; the battery cell is arranged in the shell and comprises a first tab and a second tab with the polarity opposite to that of the first tab; in the battery top cap according to the fourth embodiment, the top cap plate 3 covers the opening, the first tab is electrically connected to the first pole 41, and the second tab is electrically connected to the second pole 42.
It should be noted that: the battery core comprises a positive plate, a diaphragm and a negative plate, and can be sequentially stacked and wound, wherein the positive plate comprises a positive current collector and a positive active material coated on the surface of the positive current collector, and the negative plate comprises a negative current collector and a negative active material coated on the surface of the negative current collector. First utmost point ear is connected in the anodal mass flow body, and the second utmost point ear is connected in the negative pole mass flow body, and the edge of the anodal mass flow body can have the blank area that is not covered by anodal active material, and first utmost point ear can be directly formed through cutting the blank area. Similarly, the second tab can be directly cut through the blank area of the negative current collector, and in addition, the first tab and the second tab can also be fixed on the blank area of the positive plate and the negative plate respectively through welding. The first tab can be connected to the first pole 41 and the second tab can be connected to the second pole 42 by laser welding.
Embodiment eight
A battery, comprising: a housing provided with an opening; the battery cell is arranged in the shell and comprises a first tab and a second tab with the polarity opposite to that of the first tab; like the battery top cap of the fifth embodiment, the top cover plate 3 covers the opening, the first tab is electrically connected to the first pole 41, and the second tab is electrically connected to the second pole 42.
Ninth embodiment
A battery, comprising: a housing provided with an opening; the battery cell is arranged in the shell and comprises a first tab and a second tab with the polarity opposite to that of the first tab; in the battery top cap according to the sixth embodiment, the top cap plate 3 covers the opening, the first tab is electrically connected to the first pole 41, and the second tab is electrically connected to the second pole 42.
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. A sealing washer that battery top cap was used which characterized in that includes:
the sealing ring comprises a sealing ring body (1) and a sealing ring body, wherein the sealing ring body is provided with a through hole (11) for a battery pole to pass through and is used for forming electric connection or electric insulation between a battery top cover and the pole;
boss (2), sealing washer body (1) is followed through hole (11) downwardly extending forms boss (2), boss (2) are used for the cover to establish the top cap with between the utmost point post, and will utmost point post is fixed in the top cap.
2. A gasket for a battery top cap in accordance with claim 1, wherein: the outer diameter of the sealing ring body (1) is larger than that of the boss (2), and the height of the sealing ring body (1) is smaller than or equal to that of the boss (2).
3. A gasket for a battery top cap in accordance with claim 1, wherein: the sealing ring body (1) is made of conductive rubber.
4. A gasket for a battery top cap in accordance with claim 3, wherein: the resistance values of the sealing ring body (1) are all 1 omega-1M omega.
5. A gasket for a battery top cap in accordance with claim 1, wherein: the sealing ring body (1) is made of insulating rubber.
6. A gasket for a battery top cap in accordance with claim 5, wherein: the resistance value of the sealing ring body (1) is larger than 200M omega.
7. A gasket for a battery top cap in accordance with claim 1, wherein: the sealing ring body (1) and the boss (2) are circular, oval or square in shape.
8. A battery top cap, comprising:
the top cover plate (3) is provided with a pole through hole (31) and is provided with a first pole (41) and a second pole (42) with the polarity opposite to that of the first pole (41);
the sealing ring according to any one of claims 1 to 7, wherein the two sealing rings are respectively sleeved on the first pole (41) and the second pole (42) and are in interference fit with the pole through hole (31), the first pole (41) is electrically connected with the top cover plate (3) through the sealing rings, and the second pole (42) is electrically insulated from the top cover plate (3) through the sealing rings.
9. A battery top cap in accordance with claim 8, wherein: the battery top cap is characterized in that a concave part (311) is arranged at the top of the pole through hole (31), the sealing ring body (1) is embedded in the concave part (311), the battery top cap further comprises an insulating piece (5) and a welding piece (6), the insulating piece (5) is fixed to the bottom of the top cap piece (3), the welding piece (6) is arranged at the bottom of the insulating piece (5), and the end part of the boss (2) abuts against the insulating piece (5) and/or the welding piece (6).
10. A battery, comprising:
a housing provided with an opening;
the battery cell is arranged in the shell and comprises a first tab and a second tab with the polarity opposite to that of the first tab;
the battery top cap of any one of claims 8 to 9, wherein a top cover sheet (3) covers the opening, the first tab is electrically connected to the first pole (41), and the second tab is electrically connected to the second pole (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021753097.0U CN213150891U (en) | 2020-08-20 | 2020-08-20 | Sealing washer, battery top cap and battery that battery top cap was used |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021753097.0U CN213150891U (en) | 2020-08-20 | 2020-08-20 | Sealing washer, battery top cap and battery that battery top cap was used |
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| Publication Number | Publication Date |
|---|---|
| CN213150891U true CN213150891U (en) | 2021-05-07 |
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| CN202021753097.0U Active CN213150891U (en) | 2020-08-20 | 2020-08-20 | Sealing washer, battery top cap and battery that battery top cap was used |
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| CN (1) | CN213150891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552086A (en) * | 2021-11-11 | 2022-05-27 | 东莞锂微电子科技有限公司 | Pole welding structure of square steel shell battery and battery |
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2020
- 2020-08-20 CN CN202021753097.0U patent/CN213150891U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552086A (en) * | 2021-11-11 | 2022-05-27 | 东莞锂微电子科技有限公司 | Pole welding structure of square steel shell battery and battery |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220130 Address after: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zenergy Battery Technologies Co.,ltd Address before: 523000 Dalang Town, Dongguan, Guangdong province Xiangshan Pine Hill Village Xiangshan Industrial Park Jiayuan Road No. 9 Patentee before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: Jiangsu Tafel Power System Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zhengli New Energy Battery Technology Co.,Ltd. Country or region after: China Address before: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee before: Jiangsu Zenergy Battery Technologies Co.,ltd Country or region before: China |
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| CP03 | Change of name, title or address |