CN114614179A - Battery case with sealing structure and large-capacity battery - Google Patents

Battery case with sealing structure and large-capacity battery Download PDF

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Publication number
CN114614179A
CN114614179A CN202210239652.5A CN202210239652A CN114614179A CN 114614179 A CN114614179 A CN 114614179A CN 202210239652 A CN202210239652 A CN 202210239652A CN 114614179 A CN114614179 A CN 114614179A
Authority
CN
China
Prior art keywords
battery
cover plate
bearing
sealing structure
battery case
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.)
Pending
Application number
CN202210239652.5A
Other languages
Chinese (zh)
Inventor
张三学
雷政军
韩晓宇
翟腾飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi Olympus Power Energy Co Ltd
Original Assignee
Shaanxi Olympus Power Energy Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shaanxi Olympus Power Energy Co Ltd filed Critical Shaanxi Olympus Power Energy Co Ltd
Priority to CN202210239652.5A priority Critical patent/CN114614179A/en
Publication of CN114614179A publication Critical patent/CN114614179A/en
Priority to PCT/CN2022/143710 priority patent/WO2023125886A1/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The invention relates to the technical field of batteries, and particularly discloses a battery shell with a sealing structure and a high-capacity battery. The cover plate is a positive electrode and a negative electrode of the battery, the barrel is provided with a bearing part along the peripheral direction for bearing the cover plate, the cover plate is provided with an installation part matched with the bearing part in a concave-convex mode along the peripheral direction, and an insulating layer is arranged on the contact surface of the bearing part and the installation part. According to the invention, the polar columns are used as the cover plates, so that the material cost of the battery is greatly reduced, the internal space of the battery is saved, the energy density of the battery is improved, and the heat dissipation of the polar columns of the battery is facilitated; when the batteries are connected in series, the contact area between the pole columns is increased, so that the connection effectiveness of the batteries is improved, and the generation of heat is reduced; the apron cooperates with the barrel is unsmooth, has improved the structural strength of battery, sets up the insulating layer in the contact department of apron and barrel, prevents to lead to the fact the short circuit because of utmost point post and barrel electric conductance, has improved the security and the life of battery.

Description

Battery case with sealing structure and large-capacity battery
Technical Field
The invention belongs to the technical field of batteries, and particularly relates to a battery shell with a sealing structure and a high-capacity battery.
Background
The high-capacity lithium battery is one of the development directions of the lithium battery, and can be applied to the fields of energy storage and power batteries. The square battery with the maximum capacity of the lithium battery in the current market is about 300Ah, the cylindrical battery with the maximum capacity is not more than 100Ah, under the background of 'carbon peak reaching' and 'carbon neutralization', the energy storage industry is expected to be greatly developed, but is influenced by the battery capacity, the lithium battery needs to be connected in series and in parallel with a plurality of batteries when in energy storage application, so that connecting parts are various, the connecting steps are complex and cumbersome, the use amount of a battery management system, a wire rod and a battery box is very large, and the energy storage cost is high. The capacity of the battery is improved, and the battery has a remarkable effect on solving the problems. However, the large-capacity battery generates considerable heat during the charging and discharging processes, and if the generated heat cannot be effectively released, the heat is accumulated in the single battery, so that the temperature of the large-capacity battery is not uniform, the service life of the battery is shortened, and a safety accident of the large-capacity battery is caused in a serious case. The large-capacity battery also has the problems of high heat generated by pole waste, unreliable connection between batteries and poor safety.
CN114050306A discloses a lithium battery, comprising: the winding core comprises a main body, wherein a positive electrode empty foil area and a negative electrode empty foil area are arranged at two ends of the main body, the positive electrode empty foil area is formed into a positive electrode end face through flattening, and the negative electrode empty foil area is formed into a negative electrode end face through flattening; the positive electrode connecting cover is buckled on the positive electrode end face and is welded and connected with the positive electrode end face; and the negative electrode connecting cover is buckled on the end face of the negative electrode and is welded and connected with the negative electrode connecting cover. The positive electrode connecting cover is buckled on the positive electrode end face and is connected in a welding mode; the negative electrode connecting cover is buckled on the end face of the negative electrode and is connected in a welding mode. This application is only with the electrode of battery and end cover welding together to not regard as the electrode of battery with whole end cover, radiating area and electrically conductive area are all less, are unfavorable for guaranteeing the security and the stability of large capacity battery.
CN112864502A discloses a top cover assembly, a housing and a secondary battery, the top cover assembly includes a top cover plate, a terminal post, a fixing member and a limiting member. The top cover plate is provided with a first through hole. The pole column penetrates through the first through hole. The fixed part is fixedly connected with one end of the protruding top cover plate of the pole. At least part of the limiting piece is positioned between the fixed piece and the top cover plate to separate the fixed piece and the top cover plate. The surface of the top cover plate, which is in contact with the limiting part, is a first matching surface, the first matching surface is provided with a first matching part, the surface of the limiting part, which is in contact with the top cover plate, is a second matching surface, the second matching surface is provided with a second matching part, and the first matching part and the second matching part are in concave-convex matching to limit the limiting part to rotate by taking the axis of the first through hole as a rotating shaft. The shell of the secondary battery uses the top cover assembly, so that the mechanical damage of the tab connection part of the secondary battery under the action of external force can be improved, and the phenomenon that the short circuit fault occurs in the battery cell can be improved. Although this application also uses the concave-convex fitting limit component, it does not solve the problem of insulation between the cover plate and the case of the large-capacity battery using the cover plate as the terminal, and the sealing effect is also not good.
Disclosure of Invention
Therefore, it is necessary to provide a battery case with a sealing structure and a large-capacity battery, in order to solve the above technical problems, a cover plate of the battery is a positive electrode and a negative electrode of the battery, the cover plate is in concave-convex fit with a barrel, and an insulating layer is arranged on a contact surface between the cover plate and the barrel, so that the structure is simple, the cost is saved, and the improvement of the energy density and the safety of the battery is facilitated.
The technical scheme of the invention is as follows:
a battery shell with a sealing structure comprises a cylinder body and a cover plate, wherein the cylinder body and the cover plate are enclosed to form the battery shell, the cover plate comprises a first cover plate and a second cover plate, the first cover plate is a battery anode, and the second cover plate is a battery cathode;
the cylinder body is provided with a first bearing part along the circumferential direction of a first edge for bearing the first cover plate, the first cover plate is provided with a first mounting part which is in concave-convex fit with the first bearing part along the circumferential direction of the first edge, and a first insulating layer is arranged on the contact surface of the first bearing part and the first mounting part;
the barrel is provided with a second bearing part along the second edge circumferential direction for bearing the second cover plate, the second cover plate is provided with a second installation part matched with the second bearing part in a concave-convex mode along the second edge circumferential direction, and a second insulating layer is arranged on the contact surface of the second bearing part and the second installation part.
Preferably, the first bearing portion and the second bearing portion are respectively provided with a groove along the circumferential direction.
Preferably, the bottom of the groove is provided with a protrusion along the circumferential direction.
Preferably, the first mounting part and the second mounting part are respectively provided with a bulge matched with the groove.
Preferably, the insulating layer is an insulating gasket.
Preferably, the first installation department first bearing portion with the first insulating piece is equipped with the matched with fixed orifices, the second installation department second bearing portion with the second insulating piece is equipped with the matched with fixed orifices.
Preferably, a fixing component is arranged at the fixing hole.
Preferably, the fixing member is insulated from the housing.
Preferably, the insulating layer is an insulating glue layer.
A large-capacity battery comprising the battery case according to any one of the above.
The invention has the beneficial effects that:
according to the invention, the pole is used as the cover plate, so that the material cost of the battery is greatly reduced, the internal space of the battery is saved, and the energy density of the battery is improved; the pole is a heat accumulation part of the battery, and the pole is used as a battery cover plate, so that heat dissipation of the battery pole is facilitated; when a plurality of batteries are connected in series, the contact area between the pole columns is increased, so that the connection effectiveness of the batteries is improved, and the generation of heat is reduced; the apron cooperates with the barrel is unsmooth, has improved the structural strength of battery, sets up the insulating layer in the contact department of apron and barrel, prevents to lead to the fact the short circuit because of utmost point post and barrel electric conductance, has improved the security and the life of battery.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view of the overall structure of a large capacity battery;
FIG. 2 is a second schematic diagram of the overall structure of a large-capacity battery;
FIG. 3 is a cross-sectional view of a battery housing having a sealing structure;
fig. 4 is a partially enlarged view of a portion a in fig. 3.
Fig. 5 is a partially enlarged view of a portion B in fig. 3.
Fig. 6 is a schematic structural view of the fixing assembly.
Reference numerals:
1-barrel, 2-apron, 21-first apron, 22-second apron, 3-supporting part, 31-first supporting part, 32-second supporting part, 4-installation department, 41-first installation department, 42-second installation department, 5-insulating layer, 51-first insulating layer, 52-second insulating layer, 6-recess, 7-fixed orifices, 8-fixed components, 81-bolt, 82-insulating gasket, 83-insulating sleeve, 84-nut.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Hereinafter, embodiments specifically disclosing a battery sealing structure of the present invention and a battery case and a large capacity battery having the same will be described in detail with reference to the accompanying drawings as appropriate. But a detailed description thereof will be omitted. For example, detailed descriptions of already known matters and repetitive descriptions of actually the same configurations may be omitted. This is to avoid unnecessarily obscuring the following description, and to facilitate understanding by those skilled in the art. The drawings and the following description are provided to enable those skilled in the art to fully understand the present invention, and are not intended to limit the subject matter described in the claims.
All embodiments and alternative embodiments of the invention may be combined with each other to form new solutions, if not specifically stated. All technical and optional features of the invention may be combined with each other to form new solutions, if not otherwise specified.
The terms "comprising" and "including" as used herein mean open or closed unless otherwise specified. For example, "comprising" and "comprises" may mean that other components not listed may also be included or included, or that only listed components may be included or included.
It is to be understood that relational terms such as "first," "second," and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above summary of the present invention is not intended to describe each disclosed embodiment or every implementation of the present invention. The following description more particularly exemplifies illustrative embodiments. At various points throughout this application, guidance is provided through a list of embodiments that can be used in various combinations. In each instance, the list is merely a representative group and should not be construed as exhaustive.
Example 1
As shown in fig. 1, the present embodiment shows a battery housing with a sealing structure, which includes a cylinder 1 and a cover plate 2, the cylinder 1 and the cover plate 2 enclose to form the battery housing, the cover plate 2 includes a first cover plate 21 and a second cover plate 22, the first cover plate 21 is a battery anode, and the second cover plate 22 is a battery cathode; the cylinder body 1 is provided with a first supporting part 31 along the circumferential direction of a first edge for supporting the first cover plate 21, the first cover plate 21 is provided with a first mounting part 41 which is in concave-convex fit with the first supporting part 31 along the circumferential direction of the first edge, and a first insulating layer 51 is arranged on the contact surface of the first supporting part 31 and the first mounting part 41; the cylinder 1 is provided with a second supporting portion 32 along the second edge circumference for supporting the second cover plate 22, the second cover plate 22 is provided with a second mounting portion 42 in concave-convex fit with the second supporting portion 32 along the second edge circumference, and a second insulating layer 52 is provided on the contact surface between the second supporting portion 32 and the second mounting portion 42.
It should be noted that, in the embodiment, the battery post is used as the cover plate, so that the material cost of the battery is greatly reduced, the internal space of the battery is also saved, and the energy density of the battery is improved; the pole is a heat accumulation part of the battery, and the pole is used as a battery cover plate, so that heat dissipation of the battery pole is facilitated; when a plurality of batteries are connected in series, the contact area between the pole columns is increased, so that the connection effectiveness of the batteries is improved, and the generation of heat is reduced; the apron cooperates with the barrel is unsmooth, has improved the structural strength of battery, sets up the insulating layer in the contact department of apron and barrel, prevents to lead to the fact the short circuit because of utmost point post and barrel electric conductance, has improved the security and the life of battery.
Example 2
As shown in fig. 2, the present embodiment shows a battery housing with a sealing structure, which includes a cylinder 1 and a cover plate 2, the cylinder 1 and the cover plate 2 enclose to form the battery housing, the cover plate 2 includes a first cover plate 21 and a second cover plate 22, the first cover plate 21 is a battery anode, and the second cover plate 22 is a battery cathode; the cylinder body 1 is provided with a first bearing part 31 along the circumferential direction of a first edge for bearing the first cover plate 21, the first cover plate 21 is provided with a first mounting part 41 which is in concave-convex fit with the first bearing part 31 along the circumferential direction of the edge, the cylinder body is provided with a second bearing part 32 along the circumferential direction of a second edge for bearing the second cover plate 22, and the second cover plate 22 is provided with a second mounting part 42 which is in concave-convex fit with the second bearing part 32 along the circumferential direction of the edge.
As shown in fig. 3 to 5, the first bearing portion 31 and the second bearing portion 32 are respectively provided with a groove 6 along the circumferential direction, and the bottom of the groove 6 is provided with a protrusion along the circumferential direction. The first mounting part 41 and the second mounting part 42 are provided with projections, respectively, which match the shape of the recess 6. Through making bearing portion and installation department form unsmooth complex structure along circumference, can effectively strengthen battery case's sealed effect and structural strength.
A first insulating layer 51 is arranged on the contact surface of the first supporting part 31 and the first mounting part 41; a second insulating layer 52 is provided on the contact surface between the second receiving portion 32 and the second mounting portion 42. In the present embodiment, the first insulating layer 51 is a first insulating pad, and the second insulating layer 52 is a second insulating pad. The first mounting portion 41, the first insulating spacer and the first bearing portion 31 are provided with fixing holes 7 matched with each other, and the second mounting portion 42, the second insulating spacer and the second bearing portion 32 are provided with fixing holes 7 matched with each other. And a fixing component 8 insulated from the shell is arranged at the fixing hole 7.
In this embodiment, as shown in fig. 6, the fixing member 8 includes a bolt 81, an insulating washer 82, an insulating sleeve 83 and a nut 84, the insulating washer 82 is disposed between the bolt 81 and the mounting portion 4, the insulating sleeve 83 is disposed on the bolt 81, and the fixing member is fixed by the nut 84, so that the structural strength is enhanced, the battery case is insulated from the fixing member, and the battery is prevented from being short-circuited due to the electrical conduction between the cover plate and the cylindrical body.
Example 3
The embodiment shows a battery shell with a sealing structure, which comprises a cylinder body 1 and a cover plate 2, wherein the cylinder body 1 and the cover plate 2 enclose to form the battery shell, the cover plate 2 comprises a first cover plate 21 and a second cover plate 22, the first cover plate 21 is a battery anode, and the second cover plate 22 is a battery cathode; the cylinder body 1 is provided with a first bearing part 31 along the circumferential direction of a first edge for bearing the first cover plate 21, the first cover plate 21 is provided with a first mounting part 41 which is in concave-convex fit with the first bearing part 31 along the circumferential direction of the edge, the cylinder body is provided with a second bearing part 32 along the circumferential direction of a second edge for bearing the second cover plate 22, and the second cover plate 22 is provided with a second mounting part 42 which is in concave-convex fit with the second bearing part 32 along the circumferential direction of the edge.
The first bearing portion 31 and the second bearing portion 32 are respectively provided with a groove 6 along the circumferential direction, and the bottom of the groove 6 is provided with a protrusion along the circumferential direction. The first mounting part 41 and the second mounting part 42 are provided with projections, respectively, which match the shape of the recess 6. Through making bearing portion and installation department form unsmooth complex structure along circumference, can effectively strengthen battery case's sealed effect and structural strength.
A first insulating layer 51 is arranged on the contact surface of the first supporting part 31 and the first mounting part 41; a second insulating layer 52 is provided on the contact surface between the second receiving portion 32 and the second mounting portion 42. In this embodiment, the first insulating layer 51 and the second insulating layer 52 are both insulating glue layers, and the insulating glue layers are formed by pouring insulating glue. The first mounting portion 41, the first insulating layer 51 and the first bearing portion 31 are provided with matching fixing holes 7, and the second mounting portion 42, the second insulating pad layer 52 and the second bearing portion 32 are provided with matching fixing holes 7. And a fixing component 8 insulated from the shell is arranged at the fixing hole 7. In this embodiment, the fixing member 8 is a bolt 81, an insulating spacer 82, an insulating sleeve 83 and a nut 84, the insulating spacer 82 is disposed between the bolt 81 and the mounting portion 4, the insulating sleeve 83 is sleeved on the bolt 81, and the fixing member is fixed by the nut 84, so that the strength of the structure is enhanced, the battery case is insulated from the fixing member, and the battery is prevented from being short-circuited due to the electrical conduction between the cover plate and the cylindrical body.
Example 4
This example discloses a large capacity battery comprising the battery case of examples 1-3 above.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A battery shell with a sealing structure comprises a cylinder body and a cover plate, wherein the cylinder body and the cover plate are enclosed to form the battery shell;
the cylinder body is provided with a first bearing part along the circumferential direction of a first edge for bearing the first cover plate, the first cover plate is provided with a first mounting part which is in concave-convex fit with the first bearing part along the circumferential direction of the first edge, and a first insulating layer is arranged on the contact surface of the first bearing part and the first mounting part;
the barrel is provided with a second bearing part along the second edge circumferential direction for bearing the second cover plate, the second cover plate is provided with a second installation part matched with the second bearing part in a concave-convex mode along the second edge circumferential direction, and a second insulating layer is arranged on the contact surface of the second bearing part and the second installation part.
2. The battery case with a sealing structure according to claim 1, wherein the first and second bearing portions are each provided with a groove in a circumferential direction.
3. The battery case with a sealing structure according to claim 2, wherein the groove bottom is provided with a projection in the circumferential direction.
4. The battery case with seal structure according to any one of claims 1 to 3, wherein the first mounting portion and the second mounting portion are respectively provided with projections that fit into the grooves.
5. The battery case with a sealing structure of claim 1, wherein the insulating layer is an insulating gasket.
6. The battery case having a sealing structure according to claim 5, wherein the first mounting portion, the first bearing portion and the first insulating sheet are provided with mating fixing holes, and the second mounting portion, the second bearing portion and the second insulating sheet are provided with mating fixing holes.
7. The battery case having a sealing structure according to claim 6, wherein a fixing member is provided at the fixing hole.
8. The battery case with a sealing structure of claim 7, wherein the fixing assembly is insulated from the case.
9. The battery case with a sealing structure of claim 1, wherein the insulating layer is an insulating glue layer.
10. A large-capacity battery comprising the battery case according to any one of claims 1 to 9.
CN202210239652.5A 2021-12-31 2022-03-11 Battery case with sealing structure and large-capacity battery Pending CN114614179A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202210239652.5A CN114614179A (en) 2022-03-11 2022-03-11 Battery case with sealing structure and large-capacity battery
PCT/CN2022/143710 WO2023125886A1 (en) 2021-12-31 2022-12-30 High-capacity battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210239652.5A CN114614179A (en) 2022-03-11 2022-03-11 Battery case with sealing structure and large-capacity battery

Publications (1)

Publication Number Publication Date
CN114614179A true CN114614179A (en) 2022-06-10

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CN202210239652.5A Pending CN114614179A (en) 2021-12-31 2022-03-11 Battery case with sealing structure and large-capacity battery

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023125886A1 (en) * 2021-12-31 2023-07-06 陕西奥林波斯电力能源有限责任公司 High-capacity battery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023125886A1 (en) * 2021-12-31 2023-07-06 陕西奥林波斯电力能源有限责任公司 High-capacity battery

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