CN210866417U - Battery module fast dispels heat - Google Patents

Battery module fast dispels heat Download PDF

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Publication number
CN210866417U
CN210866417U CN201921686386.0U CN201921686386U CN210866417U CN 210866417 U CN210866417 U CN 210866417U CN 201921686386 U CN201921686386 U CN 201921686386U CN 210866417 U CN210866417 U CN 210866417U
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module
heat dissipation
heat
battery
insulating pad
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CN201921686386.0U
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周浩
杨金林
李佛
王仲明
聂宏达
杨新林
其他发明人请求不公开姓名
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Hunan Dianjiangjun New Energy Co ltd
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Hunan Dianjiangjun New Energy Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Abstract

The utility model discloses a quick heat dissipation battery module, battery module includes: the battery comprises single battery cells, wherein a plurality of single battery cells are arranged in a laminated manner; the battery cell heat conduction insulating pad is attached to the lug of the single battery cell; the heat-conducting aluminum plate is tightly pressed and attached to the other surface of the electric core heat-conducting insulating pad; the module heat-conducting insulating pad is tightly pressed and attached to the other surface of the heat-conducting aluminum plate; the metal heat dissipation shell, monomer electricity core dress hold in the metal heat dissipation shell, and metal heat dissipation shell compresses tightly the laminating with module heat conduction insulating pad. This quick heat dissipation battery module compares in current from the side of monomer electricity core see through the heat dissipation mode that the plastic-aluminum membrane conducts heat, and its heat dissipation is more direct, effective, and the radiating efficiency is higher, and the radiating effect is better.

Description

Battery module fast dispels heat
Technical Field
The utility model relates to a new energy battery technical field particularly, relates to a quick heat dissipation battery module.
Background
In the application of the new energy battery, the usage environment temperature of the battery is a key parameter for the usage of the battery module. At the in-process of battery module circulation charge-discharge, because monomer electricity core itself exists the internal resistance, consequently the electric core has the phenomenon of generating heat at circulation charge-discharge in-process, at the charge-discharge in-process of higher multiplying power, the internal polarization internal resistance of monomer electricity core can show the increase, and the electricity core generates heat and will be more obvious.
Excessive cell temperatures can disrupt the chemical equilibrium inside the cell, leading to side reactions. The performance of the battery core material charged and discharged in a circulating way at high temperature is degraded, and the circulating performance of the battery is greatly reduced. Therefore, in the design of the battery module, a heat dissipation design is a very important part thereof.
In traditional battery module heat dissipation design, the heat dissipation of monomer electricity core increases heat conduction aluminum plate at the both sides face of monomer electricity core usually, derives the module with the heat via heat conduction aluminum plate hem part, but this kind of mode is extremely poor because the heat conductivity of monomer electricity core both sides plastic-aluminum membrane leads to the radiating efficiency extremely low to the radiating effect is poor, influences battery module cycle life.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a quick heat dissipation battery module, which solves the problems of low heat dissipation efficiency and poor heat dissipation effect of the battery module in the prior art.
In order to achieve the above object, the utility model provides a quick heat dissipation battery module, this battery module includes: the battery comprises single battery cells, wherein a plurality of single battery cells are arranged in a laminated manner; the battery cell heat conduction insulating pad is attached to the lug of the single battery cell; the heat-conducting aluminum plate is tightly pressed and attached to the other surface of the electric core heat-conducting insulating pad; the module heat-conducting insulating pad is tightly pressed and attached to the other surface of the heat-conducting aluminum plate; the metal heat dissipation shell, monomer electricity core dress hold in the metal heat dissipation shell, and metal heat dissipation shell compresses tightly the laminating with module heat conduction insulating pad.
Further, the battery module still includes: the module support, monomer electricity core are installed in the module support, and heat conduction aluminum plate passes through fastening screw and installs on the module support.
Further, the battery module still includes: the module pressing plate is of a groove-shaped structure with two ends and an opening at the upper side, the single battery cell and the module support are both installed in the module pressing plate, and the module pressing plate is connected with the module support through a buckling position; the module clamp plate curb plate is installed at the upside of module clamp plate, and module clamp plate curb plate forms the open rectangle box body in both ends with the module clamp plate equipment, and in the box body was arranged in to monomer electricity core, and the utmost point ear of monomer electricity core was towards the opening end of box body.
Further, the metal heat dissipation housing includes: the module comprises a heat dissipation lower shell, wherein the heat dissipation lower shell is of a box body structure with an opening at the upper side, a single battery cell, a battery cell heat conduction insulating pad, a heat conduction aluminum plate, a module heat conduction insulating pad, a module bracket, a module pressing plate and a module pressing plate side plate are all arranged in the heat dissipation lower shell, and the inner surface of one side of the heat dissipation lower shell is tightly pressed and attached to the module heat conduction insulating pad; and the upper radiating shell is arranged at the upper side opening of the lower radiating shell and is combined with the lower radiating shell to form a metal radiating shell.
Further, the battery module still includes: the battery cell heat insulation layer is attached to the side face of each single battery cell, and the battery cell heat insulation layer is attached to two side faces of each single battery cell.
Furthermore, the positive and negative pole lugs of the multiple monomer battery cells are arranged in a staggered manner, the positive and negative pole lugs of two adjacent monomer battery cells are connected in series through bending, and the battery cell heat-conducting insulating pad is attached to the bending connection part of the lug.
Furthermore, a first bus bar is arranged between the two bent lugs, and the two lugs are both bent towards the first bus bar and welded with the first bus bar.
Furthermore, positive and negative pole lugs of the plurality of monomer cells are respectively arranged in rows and are just opposite to each other, the positive pole lugs of the plurality of monomer cells are connected with each other through a second bus bar, the negative pole lugs of the plurality of monomer cells are connected with each other through a third bus bar, the plurality of monomer cells are connected in parallel, and the second bus bar and the third bus bar are both attached with a cell heat conduction insulating pad.
Further, electric core heat conduction insulating pad and module heat conduction insulating pad are heat conduction silica gel pad.
Use the technical scheme of the utility model, the inside heat of monomer electricity core is derived through utmost point ear, and the heat on the utmost point ear conducts to metal heat dissipation shell through electric core heat conduction insulating pad, heat conduction aluminum plate and the insulating pad conduction of module heat conduction again. In the process of charging and discharging the single battery cell, the lug position is the position with the highest temperature in the temperature distribution of the battery cell, the rapid heat dissipation battery module directly guides the heat inside the single battery cell out through the lug, and directly guides the heat of the battery cell out of the heat conduction insulating pad of the battery cell, the heat conduction aluminum plate and the heat conduction insulating pad of the module to the metal heat dissipation shell, compared with the existing heat dissipation mode of transmitting heat from the side surface of the single battery cell through the aluminum plastic film, the rapid heat dissipation battery module has the advantages of more direct and effective heat dissipation, higher heat dissipation efficiency and better heat dissipation; moreover, the rapid heat dissipation battery module guides the heat of the tabs to the metal heat dissipation shell, and the metal heat dissipation shell has a larger area, so that the heat dissipation effect and the heat dissipation efficiency are improved.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of a disassembled structure of a battery module according to an embodiment of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a partially enlarged view of B in fig. 1.
Fig. 4 is an overall assembly diagram of the battery module according to the embodiment of the present invention.
Fig. 5 is a cross-sectional view of a battery module according to an embodiment of the present invention.
Wherein the figures include the following reference numerals:
10. a single cell; 11. a tab; 20. a battery core heat conduction insulating pad; 30. a heat conducting aluminum plate; 40. a module thermally conductive insulating pad; 50. a metal heat dissipation housing; 51. a heat-dissipating lower case; 52. a heat dissipating upper housing; 60. a module holder; 70. fastening screws; 80. a module pressing plate; 90. a module pressing plate side plate; 100. a battery core heat insulation layer; 110. a first bus bar.
Detailed Description
To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather the intention is merely to facilitate a distinction between corresponding parts. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
Example 1
Referring to fig. 1 to 5, a battery module with rapid heat dissipation according to an embodiment of the present invention mainly includes a single battery cell 10, a battery cell heat-conducting insulating pad 20, a heat-conducting aluminum plate 30, a module heat-conducting insulating pad 40, and a metal heat-dissipating housing 50. Wherein, a plurality of single battery cores 10 are arranged in a laminated manner; the cell heat-conducting insulating pad 20 is attached to the tab 11 of the single cell 10; the heat-conducting aluminum plate 30 is tightly pressed and attached to the other surface of the cell heat-conducting insulating pad 20; the module heat-conducting insulating pad 40 is tightly pressed and attached to the other surface of the heat-conducting aluminum plate 30; the individual electric core 10 is accommodated in the metal heat dissipation shell 50, and the metal heat dissipation shell 50 and the module heat conduction insulating pad 40 are pressed and attached to each other.
According to the rapid heat dissipation battery module, the battery core heat conduction insulating pad 20 is attached to the lug 11 of the single battery core 10, the heat conduction aluminum plate 30 is tightly pressed and attached to the other surface of the battery core heat conduction insulating pad 20, the module heat conduction insulating pad 40 is tightly pressed and attached to the other surface of the heat conduction aluminum plate 30, and the other surface of the module heat conduction insulating pad 40 is tightly pressed and attached to the metal heat dissipation shell 50; during the use, the inside heat of monomer electricity core 11 is derived through utmost point ear 11, and the heat on the utmost point ear 11 conducts to metal heat dissipation shell 50 through electric core heat conduction insulating pad 20, heat conduction aluminum plate 30 and module heat conduction insulating pad 40 again. In the process of charging and discharging the single battery cell 10, the lug 11 is the place with the highest temperature in the temperature distribution of the battery cell, the rapid heat dissipation battery module directly guides out the heat inside the single battery cell 10 through the lug 11, directly guides out the heat of the battery cell to the metal heat dissipation shell 50 through the battery cell heat conduction insulating pad 20, the heat conduction aluminum plate 30 and the module heat conduction insulating pad 40, and compared with the existing heat dissipation mode of transmitting heat through an aluminum plastic film from the side surface of the single battery cell 10, the heat dissipation is more direct and effective, the heat dissipation efficiency is higher, and the heat dissipation effect is better; in addition, the rapid heat dissipation battery module guides the heat of the tab 11 to the metal heat dissipation shell 50, and the metal heat dissipation shell 50 has a larger area, thereby being more beneficial to improving the heat dissipation effect and the heat dissipation efficiency.
In order to further increase the heat dissipation speed, in the present embodiment, the tab 11 may be widened and thickened to enhance the heat transfer performance. The specific width and thickness of the tab 11 may be set according to actual conditions.
Specifically, referring to fig. 1 and 2, in the present embodiment, the battery module further includes a module bracket 60, the unit cells 10 are mounted in the module bracket 60, and the heat conductive aluminum plate 30 is mounted on the module bracket 60 by fastening screws 70. So set up, can make fully compress tightly the laminating between heat conduction aluminum plate 30, electric core heat conduction insulating mattress 20 and the utmost point ear 11, reduce the clearance between heat conduction aluminum plate 30, electric core heat conduction insulating mattress 20 and the utmost point ear 11, ensure that it has good heat transfer performance.
Referring to fig. 1, in the present embodiment, the battery module further includes a module pressing plate 80 and a module pressing plate side plate 90 coupled thereto. The module pressing plate 80 is of a groove-shaped structure with two ends and an upper side opened, the single battery cell 10 and the module bracket 60 are both installed in the module pressing plate 80, and the module pressing plate 80 is connected with the module bracket 60 through a buckling position; module clamp plate curb plate 90 installs in the open mouth department of the upside of module clamp plate 80, and this module clamp plate curb plate 90 forms the open rectangle box body in both ends with the equipment of module clamp plate 80, and in this box body was arranged in to monomer electricity core 10, and the utmost point ear 11 of monomer electricity core 10 opened towards the open end of box body. So set up, can install polylith monomer electricity core 10 well in the box body that module clamp plate 80 and module clamp plate curb plate 90 are constituteed, form a whole to conveniently set up electric core heat conduction insulating pad 20, heat conduction aluminum plate 30 and module heat conduction insulating pad 40 on utmost point ear 11.
Specifically, referring to fig. 1, 4 and 5, in the present embodiment, the metal heat dissipation case 50 includes a heat dissipation lower case 51 and a heat dissipation upper case 52. The heat dissipation lower shell 51 and the heat dissipation lower shell 51 are of a box structure with an opening at the upper side, the single battery cell 10, the battery cell heat conduction insulating pad 20, the heat conduction aluminum plate 30, the module heat conduction insulating pad 40, the module bracket 60, the module pressing plate 80 and the module pressing plate side plate 90 are all arranged in the heat dissipation lower shell 51, and the inner surface of one side of the heat dissipation lower shell 51 is tightly pressed and attached to the module heat conduction insulating pad 40; the heat dissipation upper case 52 is installed at an upper opening of the heat dissipation lower case 51, and combined with the heat dissipation lower case 51 to form the metal heat dissipation case 50. So set up, conveniently put into metal heat dissipation shell 50 with the box body that module clamp plate 80 and module clamp plate curb plate 90 are constituteed wholly, will outwards dispel the heat from the heat that module heat conduction insulating pad 40 conducted out through whole metal heat dissipation shell 50.
In order to improve the temperature uniformity between the individual battery cells 10, referring to fig. 1, in this embodiment, the battery module further includes a plurality of battery cell heat-insulating layers 100, the battery cell heat-insulating layers 100 are attached to the side surfaces of the individual battery cells 10, and a battery cell heat-insulating layer 100 is attached to each of the two side surfaces of each of the individual battery cells 10. With such an arrangement, the adjacent single battery cells 10 are separated from each other by the battery cell heat insulation layer 100 attached to the side surface of the single battery cell 10, so as to block heat transfer between the single battery cells 10; and also the surface of monomer electricity core 10 in the battery module outside has attached electric core insulating layer 100, blocks outside monomer electricity core 10 and dispels the heat to the outside through its surface. In this way, each individual cell 10 is ensured to have good temperature uniformity.
Referring to fig. 1 and fig. 2, in the present embodiment, the positive and negative electrode tabs 11 of a plurality of cell-type cells 10 are arranged in a staggered manner, that is, the positive electrode tab of one cell-type cell 10 is arranged opposite to the negative electrode tab of another adjacent cell-type cell 10, and the negative electrode tab is arranged opposite to the positive electrode tab of another adjacent cell-type cell 10; and, two adjacent monomer electricity core 10 just, negative pole utmost point ear 11 buckle to be connected and establish ties polylith monomer electricity core 10, carry out series connection between the polylith monomer electricity core 10 and constitute the battery module. The cell heat-conducting insulating pad 20 is attached to the bending connection of the connected tab 11. So set up, through with adjacent just, negative pole utmost point ear 11 buckle the welding, with the attached junction of buckling of the utmost point ear 11 that is connected of electric core heat conduction insulating mattress 20, can increase electric core heat conduction insulating mattress 20 and utmost point ear 11's area of contact, improve the radiating effect.
In order to improve the connection stability between two tabs 11 connected to each other, referring to fig. 1 and 2, in this embodiment, a first bus bar 110 is further disposed between the two tabs 11 connected by bending, and both tabs 11 are folded toward the first bus bar 110 and are respectively welded to the first bus bar 110. So set up, connect two utmost point ears 11 through first busbar 110, can improve the welded reliability between two utmost point ears 11, improve the stability of its connection. The first bus bar 110 is an aluminum plate or a copper plate.
In addition to the method of bending and welding the two tabs 11, the tabs 11 may be directly welded to both sides of the first bus bar 110 without bending the tabs 11.
In this embodiment, the cell heat-conducting insulating pad 20 and the module heat-conducting insulating pad 40 both preferably adopt a heat-conducting silicone pad. Adopt heat conduction silica gel pad not only can be well with electric core utmost point ear 11 heat conduction to heat conduction aluminum plate 30, with heat conduction to metal heat dissipation shell 50 of heat conduction aluminum plate 30, can play insulating effect moreover between utmost point ear 11 and heat conduction aluminum plate 30, avoid taking place the short circuit. In addition, the heat-conducting silica gel pad is made of soft material, and can be well attached to the tab 11, the heat-conducting aluminum plate 30 and the metal heat dissipation shell 50. The cell insulation layer 100 is preferably made of insulation cotton.
Example 2
In an embodiment, another battery module with a quick heat dissipation function is provided, and the structure of the battery module with a quick heat dissipation function is substantially the same as that of the battery module in embodiment 1. The main difference is that the battery module of embodiment 1 is a battery module in which a plurality of single battery cells 10 are connected in series, and the battery module of this embodiment is a battery module in which a plurality of single battery cells 10 are connected in parallel.
Specifically, in this embodiment, the positive and negative electrode tabs 11 of the multiple cell electric cores 10 are respectively arranged in rows and in a facing manner, that is, the positive electrode tab of one cell electric core 10 is arranged in a facing manner with the positive electrode tab of another adjacent cell electric core 10, and the negative electrode tab is arranged in a facing manner with the negative electrode tab of another adjacent cell electric core 10. The positive pole ear 11 of polylith monomer electricity core 10 interconnects through a second busbar, and the negative pole ear 11 of polylith monomer electricity core 10 interconnects through a third busbar, connects polylith monomer electricity core 10 parallelly connected, all pastes to have electric core heat conduction insulating pad 20 on second busbar and the third busbar. The rapid heat dissipation battery module of the embodiment is suitable for the occasions where the battery cells 10 need to be connected in parallel.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a quick heat dissipation battery module which characterized in that, battery module includes:
the battery comprises single battery cells (10), wherein a plurality of single battery cells (10) are arranged in a laminated manner;
the battery cell heat conduction insulating pad (20) is attached to a lug (11) of the single battery cell (10);
the heat-conducting aluminum plate (30) is tightly pressed and attached to the other surface of the battery cell heat-conducting insulating pad (20);
the module heat conduction insulating pad (40) is tightly pressed and attached to the other surface of the heat conduction aluminum plate (30);
the single battery cell (10) is contained in the metal heat dissipation shell (50), and the metal heat dissipation shell (50) is tightly pressed and attached to the module heat conduction insulating pad (40);
the battery module further includes:
module support (60), install monomer electricity core (10) in module support (60), heat conduction aluminum plate (30) are installed through fastening screw (70) on module support (60).
2. The battery module as set forth in claim 1, wherein the battery module further comprises:
the module pressing plate (80) is of a groove-shaped structure with two open ends and an upper side, the single battery cell (10) and the module support (60) are both installed in the module pressing plate (80), and the module pressing plate (80) is connected with the module support (60) through buckling positions;
module clamp plate curb plate (90) install the upside of module clamp plate (80), module clamp plate curb plate (90) and module clamp plate (80) equipment form the open rectangle box body in both ends, monomer electricity core (10) are arranged in the box body, just utmost point ear (11) orientation of monomer electricity core (10) the open end of box body.
3. The rapid heat dissipation battery module according to claim 2, wherein the metal heat dissipation case (50) comprises:
the module comprises a heat dissipation lower shell (51), wherein the heat dissipation lower shell (51) is of a box body structure with an opening at the upper side, the single battery cell (10), the battery cell heat conduction insulating pad (20), the heat conduction aluminum plate (30), the module heat conduction insulating pad (40), the module bracket (60), the module pressing plate (80) and the module pressing plate side plate (90) are all arranged in the heat dissipation lower shell (51), and the inner surface of one side of the heat dissipation lower shell (51) is tightly pressed and attached to the module heat conduction insulating pad (40);
and the heat dissipation upper shell (52) is arranged at the upper side opening of the heat dissipation lower shell (51) and is combined with the heat dissipation lower shell (51) to form the metal heat dissipation shell (50).
4. The battery module as set forth in claim 1, wherein the battery module further comprises:
the battery cell heat insulation layer (100) is attached to the side face of the single battery cell (10), and the battery cell heat insulation layer (100) is attached to two side faces of the single battery cell (10).
5. The battery module with the rapid heat dissipation function as claimed in claim 1, wherein the positive and negative electrode tabs (11) of the multiple battery cells (10) are arranged in a staggered manner, and the positive and negative electrode tabs (11) of two adjacent battery cells (10) are connected in a bent manner to connect the multiple battery cells (10) in series, and the cell heat-conducting insulating pad (20) is attached to the bent connection of the electrode tabs (11).
6. The battery module with rapid heat dissipation function as recited in claim 5, wherein a first bus bar (110) is disposed between the two bent tabs (11), and the two tabs (11) are both bent toward the first bus bar (110) and welded to the first bus bar (110).
7. The battery module with rapid heat dissipation function as claimed in claim 1, wherein the positive and negative tabs (11) of the individual cells (10) are respectively arranged in rows and right opposite to each other, the positive tabs (11) of the individual cells (10) are connected to each other through a second bus bar, the negative tabs (11) of the individual cells (10) are connected to each other through a third bus bar, the individual cells (10) are connected in parallel, and the cell heat-conducting insulating pads (20) are attached to the second bus bar and the third bus bar.
8. The battery module as recited in any one of claims 1-7, wherein the cell and module thermally conductive and insulating pads (20, 40) are thermally conductive silicone pads.
CN201921686386.0U 2019-10-10 2019-10-10 Battery module fast dispels heat Active CN210866417U (en)

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Application Number Priority Date Filing Date Title
CN201921686386.0U CN210866417U (en) 2019-10-10 2019-10-10 Battery module fast dispels heat

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Application Number Priority Date Filing Date Title
CN201921686386.0U CN210866417U (en) 2019-10-10 2019-10-10 Battery module fast dispels heat

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115084713A (en) * 2022-07-22 2022-09-20 成都伍零三科技集团有限公司 Battery packaging part, sodium ion battery and production method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115084713A (en) * 2022-07-22 2022-09-20 成都伍零三科技集团有限公司 Battery packaging part, sodium ion battery and production method

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