CN215816072U - Top cap seal structure and electric core of electric core - Google Patents
Top cap seal structure and electric core of electric core Download PDFInfo
- Publication number
- CN215816072U CN215816072U CN202121489237.2U CN202121489237U CN215816072U CN 215816072 U CN215816072 U CN 215816072U CN 202121489237 U CN202121489237 U CN 202121489237U CN 215816072 U CN215816072 U CN 215816072U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- elastic cover
- shell
- battery cell
- elastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Abstract
The utility model discloses a top cover sealing structure of a battery cell and the battery cell, wherein the top cover sealing structure comprises: shell, elastic cover plate are equipped with the accommodation space who is used for holding the book core in the shell, and the top of shell is opened and is formed the assembly mouth, and elastic cover plate is connected with the shell in assembly mouth department, and seals accommodation space. The elastic cover plate is an elastic piece, the side wall of the elastic cover plate is in press fit with the inner wall of the shell, and the side wall of the elastic cover plate is provided with an outward expansion part expanding from bottom to top before the elastic cover plate is installed into the assembly opening. From this, form the portion that expands outward on the lateral wall of elastic cover plate to make elastic cover plate when fixed with the shell assembly, elastic cover plate's lateral wall can be by extrusion deformation, increase the fastening nature of being connected between elastic cover plate and the shell, avoid revealing of inside electrolyte and the elasticity of elastic cover plate and shell connection not hard up, influence the life of battery, reduce the degree of difficulty of manufacturing process.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a top cover sealing structure of a battery cell and the battery cell.
Background
In the related art, an electric core (a single battery) is widely applied to a new energy automobile due to the advantages of high energy density, long service life and the like, and in a conventional electric core, an elastic cover plate is cylindrical, and when the electric core is assembled with a shell, the shell is directly rolled to form a rolling part on the outer wall of the shell so as to avoid using a welding mode to fix the elastic cover plate into the shell and realize the integral sealing of the electric core. However, since the side wall of the elastic cover plate directly contacts with the inner wall of the housing, the roller pressing portion formed after the roller pressing is poor in the effect of attaching and fastening the elastic cover plate to the housing, and the sealing effect is limited.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to provide a top cap sealing structure of a battery cell and the battery cell.
The top cover sealing structure of the battery cell according to the embodiment of the first aspect of the utility model comprises: shell, elastic cover board, be equipped with the accommodation space who is used for holding the book core in the shell, the top of shell is opened and is formed the assembly opening, elastic cover board is in assembly opening department with the shell is connected, and seals accommodation space. The elastic cover plate is an elastic piece, the side wall of the elastic cover plate is in press fit with the inner wall of the shell, and the elastic cover plate is constructed in a way that before the elastic cover plate is installed in the assembly opening, the side wall of the elastic cover plate is provided with an outward expansion part expanding from the bottom to the top.
From this, form the portion that expands outward on the lateral wall of elastic cover plate to make elastic cover plate when fixed with the shell assembly, elastic cover plate's lateral wall can be by extrusion deformation, increase the fastening nature of being connected between elastic cover plate and the shell, avoid revealing of inside electrolyte and the elasticity of elastic cover plate and shell connection not hard up, influence the life of battery, reduce the degree of difficulty of manufacturing process.
In some embodiments, the flaring portion is inclined at an angle α, and α ≦ 60.
In some embodiments, the housing further has a roller press adapted to further compress the side walls of the resilient cover plate.
In some embodiments, the flaring portion is disposed near a top end of the elastic cover plate, the rolling portion is disposed near a bottom end of the elastic cover plate, and the rolling portion is not in contact with the flaring portion.
In some embodiments, the top cap sealing structure of the battery cell further includes a supporting plate, the supporting plate is a rigid member, the supporting plate is embedded in the top end or the inside of the elastic cover plate, the top of the housing has a bending portion, the bending portion presses against the elastic cover plate at the top end of the elastic cover plate, and the outward-expanding portion and the supporting plate are arranged opposite to each other in the radial direction.
In some embodiments, the top end of the elastic cover plate has an annular accommodating groove, the outward-expanding portion is provided with a coating edge located outside the accommodating groove, the outer wall of the coating edge forms the outward-expanding portion, the supporting plate is annular and is arranged in the accommodating groove, and the bending portion is adapted to abut against the coating edge.
In some embodiments, the wall thickness of the clad edge is 0.5mm to 5 mm.
In some embodiments, the surface roughness Ra of the flaring portion is between 0.5um and 100 um.
The battery cell according to an embodiment of the second aspect of the present invention includes the cap seal structure described in any of the above embodiments.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of a battery formed by connecting battery cells according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a cell according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a three-dimensional split of a battery cell according to an embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of a cell according to an embodiment of the utility model.
Fig. 5 is a schematic view of a resilient cover plate and a support plate according to an embodiment of the utility model.
Fig. 6 is a schematic cross-sectional view of an elastic cover plate and a support plate according to an embodiment of the present invention.
Fig. 7 is a schematic view of a resilient cover plate according to an embodiment of the utility model.
Fig. 8 is a schematic cross-sectional view of an elastic cover plate according to an embodiment of the utility model.
Reference numerals:
a top cover sealing structure 100;
a housing 10; an accommodation space 11; an assembly port 12; an inner wall 13; an outer wall 14; a roll-pressing portion 15; a bent portion 16;
an elastic cover plate 20; an accommodating groove 21; an outward expansion portion 22; a covered edge 221;
a support plate 30;
the core 200.
Detailed Description
Embodiments of the present invention will be described in detail below, and the embodiments described with reference to the drawings are exemplary. A top cap seal structure 100 of a cell and a cell according to an embodiment of the present invention are described with reference to fig. 1 to 8.
In order to meet different power requirements, the battery may include a plurality of battery cells, and the battery cells may also be referred to as battery cells, where the plurality of battery cells may be connected in series, in parallel, or in series-parallel, and the series-parallel refers to a mixture of series connection and parallel connection. That is, a plurality of battery cells may be directly disposed in the battery box to form a battery, as shown in fig. 1. Of course, the battery cell is not limited to be assembled into a battery, and may be used as an independent charging/discharging element.
The battery cell comprises a casing 10 and a battery cell main body (such as a winding core 200 or a laminated structure formed by laminating a positive plate and a negative plate) arranged in the casing 10. For a square cell, the housing 10 may be rectangular, and for a cylindrical cell, the housing 10 may be cylindrical. The casing 10 has an internal space that accommodates the cell main body and the electrolyte, and a fitting port 12 that communicates with the internal space. The core 200 can be inserted into the housing 10 from the fitting opening 12. The housing 10 may be made of a material such as aluminum, aluminum alloy, or plastic.
The cap assembly, which may also be referred to as an end cap assembly, seals the mounting opening 12 of the housing 10. For the cells shown in fig. 1 and 2 as cylindrical cells, the cap assembly is disc-shaped, and for square cells, the cap assembly is correspondingly generally square.
The cap seal structure 100 of the battery cell according to the embodiment of the first aspect of the present invention includes: the winding core structure comprises a shell 10 and an elastic cover plate 20, wherein an accommodating space 11 for accommodating a winding core 200 is arranged in the shell 10, the top end of the shell 10 is open and forms an assembly opening 12, and the elastic cover plate 20 is connected with the shell 10 at the assembly opening 12 and closes the accommodating space 11. The elastic cover plate 20 is an elastic member, a side wall of the elastic cover plate 20 is press-fitted with the inner wall 13 of the housing 10, and the elastic cover plate 20 is configured such that the side wall of the elastic cover plate 20 has a flared portion 22 expanding from the bottom to the top before being fitted into the fitting opening 12.
As shown in fig. 2, 3 and 4, the casing 10 of the battery cell may be cylindrical, but is not limited to be cylindrical, the cylindrical casing 10 is formed with a receiving space 11 for mounting the winding core 200, and the top of the casing 10 is provided with an elastic cover plate 20 which can be assembled and connected with the casing. The elastic cover plate 20 forms a flaring portion 22 on the inner wall 13 of the housing 10 in the direction from the bottom end to the top end of the housing 10, and the flaring portion 22 formed on the side wall of the elastic cover plate 20 is gradually pressed by the housing 10 during the assembly of the elastic cover plate 20 with the housing 10. The elastic cover plate 20 may be made of fluororubber, which improves the chemical properties of the elastic cover plate 20, so that the elastic cover plate 20 has high temperature resistance, corrosion resistance and aging resistance.
Therefore, the outward-expanding part 22 is formed on the side wall of the elastic cover plate 20, so that when the elastic cover plate 20 is fixedly assembled with the shell 10, the side wall of the elastic cover plate 20 can be extruded and deformed, the connection tightness between the elastic cover plate 20 and the shell 10 is improved, the leakage of internal electrolyte and the looseness of the connection between the elastic cover plate 20 and the shell 10 are avoided, the service life of the battery is influenced, and the difficulty of the manufacturing process is reduced.
Alternatively, as shown in FIG. 6, the flared portion 22 is inclined at an angle α, and α ≦ 60. This is because if the inclined angle is too large, the elastic cover plate 20 is difficult to mount, is not conducive to the force of compression, and may cause deformation or breakage of the housing 10.
Therefore, the inclined angle of the outward expansion part 22 is controlled, so that the stress on the surface of the outward expansion part 22 is facilitated, the elastic cover plate 20 can be firmly installed on the shell 10, and the phenomenon that the shell 10 is deformed to influence the normal use of the battery cell due to damage to the elastic cover plate 20 and excessive extrusion is avoided.
As shown in fig. 4, the housing 10 further has a rolling part 15, and the rolling part 15 is adapted to further press the side wall of the elastic cover plate 20. Specifically, when the housing 10 is not assembled with the elastic cover plate 20, the inner wall 13 of the housing 10 is flat and is not provided with the roll pressing portion 15, the roll pressing portion 15 is a roll pressing portion 15 formed by roll pressing the outer wall 14 of the housing 10 by a roll pressing device after the housing 10 is assembled with the elastic cover plate 20 in order to fasten the housing 10 and the elastic cover plate 20. The inner wall 13 of the can 10 refers to the side of the can 10 that is closer to the winding core 200, and the outer wall 14 of the can 10 refers to the side of the can 10 that is away from the winding core 200.
From this, be equipped with roll-in portion 15 on the shell 10, be convenient for extrude elastic cover plate 20 after elastic cover plate 20 and shell 10 installation, help elastic cover plate 20 and shell 10 complex tighter, the stability of connecting is higher, and the process of assembly is high-efficient, convenient.
In some embodiments, as shown in fig. 4-6, the flared portion 22 is disposed near the top end of the elastic cover plate 20, the rolled portion 15 is disposed near the bottom end of the elastic cover plate 20, and the rolled portion 15 is not in contact with the flared portion 22.
That is, the flaring portion 22 may be formed at a portion of the elastic cover plate 20, that is, the flaring portion 22 may be disposed near the top end of the elastic cover plate 20, the larger the cross-sectional area of the elastic cover plate 20 is the closer the flaring portion 22 is to the top end of the elastic cover plate 20, the diameter of the end of the elastic cover plate 20 away from the flaring portion 22 is not changed, and the rolling portion 15 is in contact with the bottom end of the flaring portion 22 after the elastic cover plate 20 is assembled with the housing 10.
Therefore, the outward-expanding part 22 is arranged close to the top end of the elastic cover plate 20, the elastic cover plate 20 and the shell 10 are convenient to abut against each other through rolling, the elastic cover plate 20 is convenient to be pre-installed in the shell 10, and the outward-expanding part 22 can have a good limiting effect on the elastic cover plate 20.
Alternatively, as shown in fig. 7 and 8, the flaring portion 22 is provided on the side wall of the elastic cover plate 20, gradually sloping toward the inner wall 13 of the housing 10 from the bottom end of the elastic cover plate 20 to the top end of the elastic cover plate 20. When the rolling device rolls the housing 10 assembled with the elastic cover plate 20, the rolling portion 15 of the housing 10 contacts the flaring portion 22, and as the rolling proceeds, an annular groove is formed on the side wall of the elastic cover plate 20 and the outer wall 14 of the housing 10.
Therefore, the flaring portion 22 gradually inclines from the bottom end to the top end of the elastic cover plate 20, so that the difficulty of the manufacturing process of the elastic cover plate 20 can be reduced or the modeling time can be reduced, and the separation of the elastic cover plate 20 and the model is facilitated, so that the surface roughness of the side wall of the flaring portion 22 is uniform, the adhesion force between the flaring portion 22 and the inner wall 13 of the shell 10 is increased, and the installation is firmer.
Further, the top cover sealing structure 100 of the battery cell further includes a supporting plate 30, the supporting plate 30 is a rigid member, the supporting plate 30 is embedded in the top end or the inside of the elastic cover plate 20, the top of the casing 10 has a bent portion 16, the bent portion 16 abuts against the elastic cover plate 20 at the top end of the elastic cover plate 20, and the outward-expanding portion 22 and the supporting plate 30 are arranged opposite to each other in the radial direction.
As shown in fig. 2 and 4, the support plate 30 disposed at the top of the top cap sealing structure 100 (the side of the elastic cover plate 20 away from the winding core 200) may be assembled with the elastic cover plate 20 only in an adaptive manner, for example, the support plate 30 may be attached to the top end or the bottom end of the elastic cover plate 20, and the support plate 30 may also be embedded and hidden inside the elastic cover plate 20, and at this time, the support plate 30 and the elastic cover plate 20 may be integrally formed in an integral injection molding manner. The support plate 30 and the flaring portion 22 are both surrounded around the elastic cover plate 20, and the flaring portion 22 and the support plate 30 are sequentially away from each other in the radial direction of the elastic cover plate 20. The top is further provided with a bent portion 16, and the bent portion 16 extends from the bottom to the top of the housing 10, and gradually bends toward the center of the elastic cover plate 20 (the winding center of the winding core 200) to stop against the end face of the top end of the elastic cover plate 20.
Therefore, the supporting plate 30 can be a metal piece for the rigid piece, the supporting plate 30 can support the elastic cover plate 20 by a framework, the overall strength and rigidity of the top cover sealing structure 100 are improved, when the elastic cover plate 20 is extruded and sealed, the supporting plate 30 can play a role of balancing weight for the elastic cover plate 20, the elastic cover plate 20 can be favorably resisted by the force applied by the shell 10 to enable the elastic cover plate 20 to be separated, and the sealing performance and the connection tightness of the whole end cover assembly at the assembling opening 12 of the shell 10 are improved.
As shown in fig. 4 and 7, the top end of the elastic cover plate 20 has an annular receiving groove 21, the outward-expanding portion 22 has a covering edge 221 located outside the receiving groove 21, the outer wall 14 of the covering edge 221 forms the outward-expanding portion 22, the supporting plate 30 is annular and located in the receiving groove 21, and the bent portion 16 is adapted to press against the covering edge 221.
The supporting plate 30 is installed in the accommodating groove 21 at the top end of the elastic cover plate 20, the thin wall between the accommodating groove 21 and the inner wall 13 of the housing 10 is a coated edge 221, all or part of the coated edge 221 forms an outward-expanding part 22, and if the part of the coated edge 221 forms the outward-expanding part 22, one side of the coated edge 221 close to the top end of the elastic cover plate 20 is gradually inclined towards the outer wall 14 of the housing 10; if the outward expansion part 22 is formed on the entire covering edge 221, the covering edge 221 gradually inclines toward the outer wall 14 of the housing 10 from the bottom end toward the top end of the elastic cover plate 20, and the side wall of the elastic cover plate 20 can be closely attached to the inner wall 13 of the housing 10 after the elastic cover plate 20 is mounted on the housing 10.
Therefore, the supporting plate 30 is arranged in the accommodating groove 21 to support the elastic cover plate 20, the structural strength of the elastic cover plate 20 and the flatness of the top of the elastic cover plate 20 are improved, the outer wall 14 of the cladding edge 221 forms the outward expansion part 22, the elastic deformation capacity of the outward expansion part is improved, the elastic cover plate 20 can be connected with the shell 10 in a rolling mode, welding is avoided, and the process flow is simplified.
Optionally, the wall thickness of the containment edge 221 is 0.5mm to 5 mm. Therefore, the wall thickness of the cladding edge 221 is controlled to be 0.5mm-5mm, so that the phenomenon that the cladding edge is easy to damage if the wall thickness is too thin and poor in sealing performance is avoided; if the wall thickness is too thick, the inner part of the elastic cover plate 20 deforms, but the part contacting with the shell 10 cannot be bent, so that the tightness and firmness of the assembly of the elastic cover plate 20 and the shell 10 are reduced, the bending of the coating edge 221 can be facilitated by controlling the wall thickness, the close degree of the attachment of the coating edge 221 and the inner wall 13 of the shell 10 is increased, and the sealing performance of the top cover sealing structure 100 is improved.
Optionally, the surface roughness Ra of the flaring portion 22 is between 0.5um and 100 um. Therefore, the surface roughness of the external expansion part 22 is controlled within 0.5um-100um, the contact area between the external expansion part 22 and the inner wall 13 of the shell 10 is increased, and the sealing performance of the top cover sealing structure 100 is improved.
The battery cell according to an embodiment of the second aspect of the present invention includes the cap seal structure 100 of any one of the above embodiments.
It will be understood that the flaring portion 22 is provided at the top end of the elastic cover plate 20, so that the top end of the elastic cover plate 20 is flared before installation, and the flaring portion 22 can have a certain limiting effect when the elastic cover plate 20 is assembled at the assembly opening 12 of the shell 10, so that the elastic cover plate 20 can be assembled with the shell 10 more accurately. Meanwhile, the roll-pressing part 15 is arranged on the shell 10, and the shell 10 is pressed to deform and stop against the side wall of the elastic cover plate 20, so that the part of the elastic cover plate 20 in contact with the side wall is driven to be pressed inwards, and the sealing of the battery cell is formed. The top of the housing 10 is further provided with a bent portion 16, which can be bent to abut against the top end of the elastic cover plate 20.
Therefore, by providing the flaring portion 22, the elastic cover plate 20 can be more largely deformed by compression when fixed to the housing 10, so that the compression deformation between the elastic cover plate 20 and the housing 10 can be increased and the fitting can be more tight, and the bending portion 16 provided increases the sealing performance and connection stability of the whole battery cell.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the utility model, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A top cap seal structure of electricity core which characterized in that includes:
the winding core comprises a shell, wherein an accommodating space for accommodating a winding core is formed in the shell, and the top end of the shell is open and forms an assembling port;
the elastic cover plate is connected with the shell at the assembling port and used for sealing the accommodating space, the elastic cover plate is an insulating piece, the side wall of the elastic cover plate is in extrusion fit with the inner wall of the shell, and the elastic cover plate is constructed into a structure that: before the elastic cover plate is installed in the assembly opening, the side wall of the elastic cover plate is provided with an outward expansion part expanding from the bottom to the top.
2. The top cover sealing structure of the battery cell of claim 1, wherein the angle of inclination α of the flaring portion is not greater than 60 °.
3. The top cover sealing structure of the battery cell of claim 1, wherein the housing further comprises a roll-pressing portion adapted to further press the side wall of the elastic cover plate.
4. The top cover sealing structure of the battery cell of claim 3, wherein the outward-expanding portion is disposed near a top end of the elastic cover plate, the roller pressing portion is disposed near a bottom end of the elastic cover plate, and the roller pressing portion is not in contact with the outward-expanding portion.
5. The top cap seal structure of the electric core according to claim 3, further comprising a support plate, wherein the support plate is a rigid member, the support plate is embedded at the top end or inside the elastic cover plate, the top of the housing has a bent portion, the bent portion presses against the elastic cover plate at the top end of the elastic cover plate, and the outward-expanding portion and the support plate are arranged opposite to each other in the radial direction.
6. The top cap sealing structure of the electrical core according to claim 5, wherein an annular accommodating groove is formed at a top end of the elastic cover plate, the outward-expanding portion is provided with a covering edge located outside the accommodating groove, an outer wall of the covering edge forms the outward-expanding portion, the support plate is annular and is disposed in the accommodating groove, and the bent portion is adapted to abut against the covering edge.
7. The top cap seal structure of the battery cell of claim 6, wherein the wall thickness of the clad edge is 0.5mm-5 mm.
8. The top cap seal structure of battery cell of claim 5, characterized in that, the surface roughness Ra of flaring is 0.5um-100 um.
9. A battery cell comprising the cap seal structure of any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121489237.2U CN215816072U (en) | 2021-06-30 | 2021-06-30 | Top cap seal structure and electric core of electric core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121489237.2U CN215816072U (en) | 2021-06-30 | 2021-06-30 | Top cap seal structure and electric core of electric core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215816072U true CN215816072U (en) | 2022-02-11 |
Family
ID=80180200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121489237.2U Active CN215816072U (en) | 2021-06-30 | 2021-06-30 | Top cap seal structure and electric core of electric core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215816072U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115377577A (en) * | 2022-09-27 | 2022-11-22 | 厦门海辰储能科技股份有限公司 | End cover assembly, battery sealing method, battery module and electric equipment |
-
2021
- 2021-06-30 CN CN202121489237.2U patent/CN215816072U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115377577A (en) * | 2022-09-27 | 2022-11-22 | 厦门海辰储能科技股份有限公司 | End cover assembly, battery sealing method, battery module and electric equipment |
| CN115377577B (en) * | 2022-09-27 | 2023-10-17 | 厦门海辰储能科技股份有限公司 | End cover assembly, battery sealing method, battery module and electric equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109449320B (en) | Button cell shell structure, button cell and consumer | |
| CN110854306A (en) | Winding type bean type battery | |
| CN215816072U (en) | Top cap seal structure and electric core of electric core | |
| CN111554834B (en) | Battery manufacturing method and battery | |
| CN113675510B (en) | End connection structure of battery cell, battery cell and power battery | |
| CN215496875U (en) | Lithium battery sealing structure | |
| CN116780065A (en) | End cover assembly, energy storage device and electric equipment | |
| CN215816073U (en) | Top cover assembly of battery core, battery core and power battery | |
| WO2023231680A1 (en) | Battery | |
| CN113054328A (en) | Utmost point ear, pole piece and lithium ion battery | |
| CN111162234A (en) | Winding type lithium ion battery | |
| CN217933996U (en) | Battery with a battery cell | |
| CN216413140U (en) | Electricity core subassembly, battery monomer, battery and power consumption device | |
| CN211719700U (en) | Winding type lithium ion battery | |
| CN215816084U (en) | Top cap subassembly and electric core of electric core | |
| CN212323097U (en) | Battery structure with cap upper bracket | |
| CN111162235A (en) | Winding type lithium ion battery | |
| CN216980707U (en) | A shell and battery for battery | |
| CN215816071U (en) | Top cap connection structure and electric core of electric core | |
| CN114512699A (en) | Secondary battery and method for manufacturing same | |
| CN218351602U (en) | Cell insulating component, battery and battery module | |
| CN219642884U (en) | Battery cell, battery module and vehicle | |
| CN211719699U (en) | Winding type lithium ion battery | |
| CN211719698U (en) | Winding type lithium ion battery | |
| CN215816060U (en) | Top cap subassembly and electric core of electric core |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 361100 201-1, complex building 5, No. 11, Butang Middle Road, torch high tech Zone (Tongxiang) industrial base, Xiamen, Fujian Province Patentee after: Xiamen Haichen Energy Storage Technology Co.,Ltd. Address before: Room 201-2, Comprehensive Building 5#, No. 11, Butang Middle Road, Industrial Base, Xiamen Torch High-tech Zone (Tongxiang), Xiamen City, Fujian Province, 361012 Patentee before: Xiamen Haichen New Energy Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address |