CN213242683U - Energy storage device - Google Patents
Energy storage device Download PDFInfo
- Publication number
- CN213242683U CN213242683U CN202022393365.9U CN202022393365U CN213242683U CN 213242683 U CN213242683 U CN 213242683U CN 202022393365 U CN202022393365 U CN 202022393365U CN 213242683 U CN213242683 U CN 213242683U
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- China
- Prior art keywords
- side wall
- pole piece
- energy storage
- storage device
- electrical connection
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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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
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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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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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
- H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
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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
- H01M50/298—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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- 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 relates to an energy storage device, which comprises a shell and a first pole piece; the shell comprises a first end face, a second end face and a side wall, wherein the first end face is connected with one end of the side wall, and the second end face is connected with the other end of the side wall; the first pole piece comprises a first supporting portion, a second supporting portion and a first electric connection portion connected with the first supporting portion and the second supporting portion respectively, the first supporting portion and the second supporting portion are all electrically connected with the side wall, and the first electric connection portion is arranged at intervals on the side wall.
Description
Technical Field
The utility model relates to an energy storage technology field, more specifically, the utility model relates to an energy storage device.
Background
At present, energy storage devices are required to be arranged on various electronic devices to provide electric energy for the devices. The energy storage device provides electrical energy to the electronic device to maintain operation of the electronic device. The pole piece of the energy storage device is arranged on the shell, and the pole piece is easily damaged by the arrangement mode in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an energy storage device to solve among the prior art pole piece setting mode and cause the problem of damage to energy storage device easily.
According to one aspect of the present invention, there is provided an energy storage device comprising a housing and a first pole piece;
the shell comprises a first end face, a second end face and a side wall, wherein the first end face is connected with one end of the side wall, and the second end face is connected with the other end of the side wall;
the first pole piece comprises a first supporting portion, a second supporting portion and a first electric connection portion connected with the first supporting portion and the second supporting portion respectively, the first supporting portion and the second supporting portion are all electrically connected with the side wall, and the first electric connection portion is arranged at intervals on the side wall.
Optionally, the side wall is of a cylindrical structure, the first supporting portion and the second supporting portion are of an arc-shaped structure, and the first supporting portion and the second supporting portion are oppositely arranged on two sides of the first electric connection portion.
Optionally, the first electrical connection portion is a sheet structure.
Optionally, a first bending portion is disposed between the first supporting portion and the first electrical connection portion, the first bending portion bends toward a side of the first supporting portion away from the side wall, a second bending portion is disposed between the second supporting portion and the first electrical connection portion, and the second bending portion bends toward a side of the second supporting portion away from the side wall.
Optionally, a plurality of first welding spot portions are formed on the first supporting portion and the second supporting portion, the width of each first welding spot portion is 0.05mm-0.30mm, and the distance between every two adjacent first welding spot portions is 0.1mm-0.5 mm.
Optionally, the display device further comprises a second pole piece, the second pole piece comprises a third supporting portion and a second electric connection portion connected with the third supporting portion, the third supporting portion is electrically connected with the first end face, the second electric connection portion is located on the side wall, and a first insulation layer is arranged between the second electric connection portion and the side wall.
Optionally, the first electrical connection portion is provided with a first metal plating layer, and the second electrical connection portion is provided with a second metal plating layer.
Optionally, the thickness of the first metal plating layer is greater than 2 μm, and the thickness of the second metal plating layer is greater than 2 μm.
Optionally, a plurality of second welding spot portions are formed on the third supporting portion, the width of each second welding spot portion is 0.05mm-0.30mm, and the distance between two adjacent second welding spot portions is 0.1mm-0.5 mm.
Optionally, a distance between the first pole piece and the second pole piece is greater than 0.5 mm.
The utility model discloses a technological effect lies in, through setting up the first electric connection portion and the lateral wall interval of first pole piece, has reduced first pole piece and lateral wall connection area's area, and the area of having avoided first pole piece and lateral wall connection area is too big to can avoid the damage that causes energy memory when setting up first pole piece.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of an energy storage device in one view according to an embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of an energy storage device from another perspective in an embodiment of the disclosure.
Fig. 3 is a schematic structural diagram of a first end surface side of an energy storage device according to an embodiment of the disclosure.
Fig. 4 is a partially enlarged view of fig. 3.
Description of reference numerals: 10-a first electrical connection portion, 101-a first bent portion, 102-a second bent portion, 11-a first support portion, 12-a second support portion, 20-a second electrical connection portion, 21-a third support portion, 31-a first end face, 32-a second end face, 33-a side wall, 4-a first insulating layer, 51-a first solder joint portion, 52-a second solder joint portion.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In one embodiment of the present disclosure, an energy storage device is disclosed, as shown in fig. 1 and 2, comprising a housing and a first pole piece.
The shell comprises a first end face 31, a second end face 32 and a side wall 33, wherein the first end face 31 is connected with one end of the side wall 33, and the second end face 32 is connected with the other end of the side wall 33.
First pole piece includes first supporting part 11, second supporting part 12 and the first electric connection portion 10 of being connected with first supporting part 11 and second supporting part 12 respectively, first supporting part 11 with second supporting part 12 all with lateral wall 33 electricity is connected, first electric connection portion 10 with lateral wall 33 interval sets up.
In this embodiment, the first electrical connection portion 10 on the first pole piece is electrically connected to the side wall 33 through the first support portion 11 and the second support portion 12, so that a space is formed between the first electrical connection portion 10 and the side wall 33. In assembling the energy storage device, the connection is made between the first support portion 11 and the side wall 33, and between the second support portion 12 and the side wall 33. The first electrical connection portion 10 is supported by the first support portion 11 and the second support portion 12 and forms a floating structure with the sidewall 33 at a distance, so that the first electrical connection portion 10 does not contact with the surface of the sidewall 33. Therefore, the area of the connecting area of the first pole piece and the side wall 33 can be reduced, the area of the side wall 33 required in the connecting process is reduced, and the damage to the side wall 33 caused by the arrangement of the first pole piece is avoided.
For example, welding may be required to attach the first pole piece to the side wall 33. The area of the connecting area between the first pole piece and the side wall 33 is reduced, and the area of the side wall 33 involved in welding can be reduced, so that the damage of the welding to the side wall is avoided, and the shell of the energy storage device is protected.
Optionally, the energy storage device includes a first pole piece as a positive electrode of the energy storage device, and further includes another pole piece having the same structure as the first pole piece as a negative electrode of the energy storage device. The first pole piece as a positive pole is arranged on the side wall 33 and is connected to the positive pole of the energy storage device cell, the pole piece as a negative pole is connected to the negative pole of the energy storage device cell, and the pole piece as a negative pole is located on the side wall 33 and is insulated from the side wall 33.
For example, the housing of the energy storage device has an inner cavity, a battery cell is disposed in the inner cavity, the positive electrode of the battery cell is conducted with the side wall 33, and the first pole piece as the positive electrode is conducted with the side wall 33. The first end face 31 is electrically connected to the negative electrode of the cell, and a pole piece serving as the negative electrode is electrically connected to the first end face 31.
In one embodiment, the sidewall 33 has a cylindrical structure, the first support portion 11 and the second support portion 12 have an arc-shaped structure, and the first support portion 11 and the second support portion 12 are oppositely disposed at two sides of the first electrical connection portion 10.
In this embodiment, the first end face 31 forms a connection at one end of the tubular structure and the second end face 32 forms a connection at the other end of the tubular structure, such that the side wall 33 forms a housing with an internal cavity with the first end face 31 and the second end face 32.
The outer side of the side wall 33 of the cylindrical structure is arc-shaped, the arc-shaped structure of the first supporting part 11 can be attached to the outer side of the side wall 33, and the arc-shaped structure of the second supporting part 12 can be attached to the outer side of the side wall 33. The connection of the first support part 11 and the second support part 12 with the side wall 33 is more convenient, and the connection structure of the first pole piece and the side wall 33 is more compact without occupying extra space.
The first support part 11 and the second support part 12 support the first electrical connection part 10 and are oppositely arranged on two sides of the first electrical connection part 10 to provide stable support, so that the first electrical connection part 10 is structurally more stable.
In one embodiment, the first electrical connection 10 is a sheet-like structure.
A first electrical connection 10 is provided between the first support 11 and the second support 12, the first electrical connection 10 being for conduction with an external circuit. For example, a lead of the external circuit is electrically connected to the first electrical connection portion 10, so that the corresponding electrode of the energy storage device is electrically connected to the external circuit.
The first electrical connection portion 10 of the sheet structure is more convenient for connecting to an external circuit, and the surface of the sheet structure is easier to handle for electrical connection to an external circuit. For example, the surface of the first electrical connection portion 10 of the sheet structure abuts against an external circuit, and the sheet structure has a sufficient surface area for contacting the external circuit, improving the stability of circuit connection.
In one embodiment, as shown in fig. 3 and 4, a first bending portion 101 is disposed between the first supporting portion 11 and the first electrical connection portion 10, the first bending portion 101 is bent toward a side of the first supporting portion 11 away from the side wall 33, a second bending portion 102 is disposed between the second supporting portion 12 and the first electrical connection portion 10, and the second bending portion 102 is bent toward a side of the second supporting portion 12 away from the side wall 33.
In this embodiment, the first bending portion 101 is bent along the first supporting portion 11 to a side away from the sidewall 33, and the second bending portion 102 is bent along the second supporting portion 12 to a side away from the sidewall 33, so as to maintain a distance between the first electrical connection portion 10 and the sidewall 33. The first bending portion 101 and the second bending portion 102 are bending structures, which have higher structural strength, and can improve the stability of the distance between the first electrical connection portion 10 and the sidewall 33, so as to improve the reliability of the first pole piece structure.
For example, in the process of conducting an external circuit to the first electrical connection portion 10, the external circuit may be connected to a side of the first electrical connection portion 10 facing away from the side wall 33, or may be connected to a side of the first electrical connection portion 10 facing toward the side wall 33. The distance between the first electrical connection portion 10 and the sidewall 33 enables the first electrical connection portion 10 to form a suspended structure, which is more convenient for forming connection with an external circuit.
In one embodiment, as shown in fig. 1 and fig. 2, the energy storage device further includes a second pole piece, where the second pole piece includes a third supporting portion 21 and a second electrical connection portion 20 connected to the third supporting portion 21, the third supporting portion 21 is electrically connected to the first end surface 31, the second electrical connection portion 20 is located on the side wall 33, and a first insulating layer 4 is disposed between the second electrical connection portion 20 and the side wall 33.
In this embodiment, the third supporting portion 21 leads out a second pole piece from the first end face 31, and the second pole piece is bent to locate the second electrical connection portion 20 on the side wall 33. The first insulating layer 4 forms insulation between the second electrical connection 20 and the side wall 33.
Insulation is formed between the first end face 31 and the side wall 33, the first end face 31 is conducted with a negative electrode of the energy storage device cell, so that the second pole piece is used as a negative pole piece, the side wall 33 and the second end face 32 are conducted with a positive electrode of the energy storage device cell, and the first pole piece is used as a positive pole piece.
In one embodiment, the first electrical connection 10 is provided with a first metallization and the second electrical connection 20 is provided with a second metallization.
The first and second metal plating layers can increase the conductivity of the corresponding first and second electrical connection portions 10 and 20. The first and second metal plating layers may be the same metal plating layer.
For example, the material of the metal plating layer may be gold, silver, tin, nickel, or other metal having a good conductive property to increase the conductivity of the first and second electrical connection portions 10 and 20.
Optionally, the thickness of the first metal plating layer is greater than 2 μm, and the thickness of the second metal plating layer is greater than 2 μm.
The thickness of the first metal plating layer and the second metal plating layer is set to be more than 2 mu m, so that the metal plating layers can be ensured to keep stable conductivity. Avoid the failure of the metal coating caused by long-time use or abrasion.
The first metal plating layer may be provided at any one of both sides of the first electrical connection portion 10 facing and facing away from the sidewall for conduction with an external circuit. First metal plating layers can also be arranged on two sides of the first electric connection part 10 facing to and facing away from the side wall, so that the first electric connection part 10 is more convenient to be connected with an external circuit.
Optionally, the first pole piece and the sidewall 33 and the second pole piece and the first end face 31 are both laser welded connection structures, and other welding methods may also be used to form the connection. The welding process can be operated in a spot welding mode, and damage to components caused by continuous welding is avoided. The first support part 11 and the second support part 12 enable the first pole piece to be connected with the side wall 33, the welding area on the first pole piece can be reduced, and damage to the energy storage device is further reduced.
In one embodiment, as shown in fig. 1, a plurality of first welding point portions 51 are formed on the first supporting portion 11 and the second supporting portion 12, a width of each first welding point portion 51 is 0.05mm to 0.30mm, and a distance between two adjacent first welding point portions 51 is 0.1mm to 0.5 mm.
A plurality of first solder portions 51 are formed on the first support portion 11 and the second support portion 12 to firmly connect the first pole piece with the side wall 33. The width of the first welding spot part 51 is 0.05mm-0.30mm, which can ensure the connection strength of each first welding spot part 51, and the area of each first welding spot part 51 is not too large, which can not cause damage in the welding process.
Adjacent two first welding point portions 51 need to maintain a space, avoiding the formation of a continuous weld. The spacing ranges from 0.1mm to 0.5mm, which not only avoids the structural strength of the component from being damaged by continuous welding, but also has enough connection strength.
In one embodiment, as shown in fig. 1, a plurality of second pad portions 52 are formed on the third supporting portion 21, the width of each second pad portion 52 is 0.05mm to 0.30mm, and the distance between two adjacent second pad portions 52 is 0.1mm to 0.5 mm.
In this embodiment, the width of the second pad portion 52 is sized to ensure the connection strength of the second pad portions 52, while avoiding damage to the component due to an excessively large area of the pad.
The spacing between the second pad portions 52 can provide sufficient connection strength while avoiding damage to the structural strength of the component from forming a continuous weld.
In one embodiment, the spacing between the first and second pole pieces is greater than 0.5 mm.
The first pole piece and the second pole piece serve as different electrodes of the energy storage device, for example, the first pole piece serves as a positive electrode, and the second pole piece serves as a negative electrode. The distance between the first pole piece and the second pole piece is kept to be larger than 0.5mm, short circuit between the first pole piece and the second pole piece can be effectively avoided, and safety performance of the energy storage device is improved.
For example, a separating structure with insulating material is arranged between the first pole piece and the second pole piece, and the separating structure extends along the housing within the space left between the first pole piece and the second pole piece. The height of the separation structure is higher than the heights of the first pole piece and the second pole piece on two sides of the corresponding position, and insulation can be effectively formed between the first pole piece and the second pole piece.
In the above embodiments, the differences between the embodiments are described in emphasis, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in consideration of brevity of the text.
Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. An energy storage device is characterized by comprising a shell and a first pole piece;
the shell comprises a first end face, a second end face and a side wall, wherein the first end face is connected with one end of the side wall, and the second end face is connected with the other end of the side wall;
the first pole piece comprises a first supporting portion, a second supporting portion and a first electric connection portion connected with the first supporting portion and the second supporting portion respectively, the first supporting portion and the second supporting portion are all electrically connected with the side wall, and the first electric connection portion is arranged at intervals on the side wall.
2. The energy storage device of claim 1, wherein the side wall is a tubular structure, the first support portion and the second support portion are arc-shaped structures, and the first support portion and the second support portion are oppositely disposed at two sides of the first electrical connection portion.
3. The energy storage device of claim 1, wherein the first electrical connection is a sheet-like structure.
4. The energy storage device as claimed in claim 1, wherein a first bending portion is disposed between the first supporting portion and the first electrical connection portion, the first bending portion is bent toward a side of the first supporting portion away from the side wall, a second bending portion is disposed between the second supporting portion and the first electrical connection portion, and the second bending portion is bent toward a side of the second supporting portion away from the side wall.
5. The energy storage device as claimed in claim 1, wherein a plurality of first welding portions are formed on the first support portion and the second support portion, the width of each first welding portion is 0.05mm to 0.30mm, and the distance between two adjacent first welding portions is 0.1mm to 0.5 mm.
6. The energy storage device of claim 1, further comprising a second pole piece, wherein the second pole piece comprises a third support portion and a second electrical connection portion connected to the third support portion, the third support portion is electrically connected to the first end surface, the second electrical connection portion is located on the side wall, and a first insulating layer is disposed between the second electrical connection portion and the side wall.
7. The energy storage device of claim 6, wherein the first electrical connection is provided with a first metallization layer and the second electrical connection is provided with a second metallization layer.
8. The energy storage device of claim 7, wherein said first metallization layer has a thickness greater than 2 μm and said second metallization layer has a thickness greater than 2 μm.
9. The energy storage device as claimed in claim 6, wherein a plurality of second welding spot portions are formed on the third support portion, the width of each second welding spot portion is 0.05mm-0.30mm, and the distance between two adjacent second welding spot portions is 0.1mm-0.5 mm.
10. The energy storage device of claim 6, wherein a spacing between the first pole piece and the second pole piece is greater than 0.5 mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022393365.9U CN213242683U (en) | 2020-10-23 | 2020-10-23 | Energy storage device |
| PCT/CN2021/104300 WO2022083172A1 (en) | 2020-10-23 | 2021-07-02 | Energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022393365.9U CN213242683U (en) | 2020-10-23 | 2020-10-23 | Energy storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213242683U true CN213242683U (en) | 2021-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022393365.9U Active CN213242683U (en) | 2020-10-23 | 2020-10-23 | Energy storage device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN213242683U (en) |
| WO (1) | WO2022083172A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022083172A1 (en) * | 2020-10-23 | 2022-04-28 | 广东微电新能源有限公司 | Energy storage device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4486301B2 (en) * | 2002-08-23 | 2010-06-23 | 株式会社デンソー | Button type battery terminal and electric device using the same |
| JP5822730B2 (en) * | 2012-01-06 | 2015-11-24 | 日立マクセル株式会社 | Battery unit |
| CN209804717U (en) * | 2019-03-07 | 2019-12-17 | 广东微电新能源有限公司 | Button cell |
| CN113078421A (en) * | 2019-09-19 | 2021-07-06 | 宁德新能源科技有限公司 | Battery with a battery cell |
| CN211376844U (en) * | 2019-11-29 | 2020-08-28 | 广东微电新能源有限公司 | Lithium battery |
| CN211578862U (en) * | 2019-12-30 | 2020-09-25 | 广东微电新能源有限公司 | Energy storage device |
| CN213242683U (en) * | 2020-10-23 | 2021-05-18 | 广东微电新能源有限公司 | Energy storage device |
-
2020
- 2020-10-23 CN CN202022393365.9U patent/CN213242683U/en active Active
-
2021
- 2021-07-02 WO PCT/CN2021/104300 patent/WO2022083172A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022083172A1 (en) * | 2020-10-23 | 2022-04-28 | 广东微电新能源有限公司 | Energy storage device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022083172A1 (en) | 2022-04-28 |
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