CN114497849B - Lithium ion battery group waterproof hinders moist structure - Google Patents

Lithium ion battery group waterproof hinders moist structure Download PDF

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Publication number
CN114497849B
CN114497849B CN202210331871.6A CN202210331871A CN114497849B CN 114497849 B CN114497849 B CN 114497849B CN 202210331871 A CN202210331871 A CN 202210331871A CN 114497849 B CN114497849 B CN 114497849B
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groove
heat
box
case
battery module
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CN114497849A (en
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韦俊红
冯振
刘潇
王国祥
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Henan Institute of Technology
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Henan Institute of Technology
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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
    • H01M50/233—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
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/19—Sealing members characterised by the material
    • H01M50/197—Sealing members characterised by the material having a layered structure
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/19—Sealing members characterised by the material
    • H01M50/198—Sealing members characterised by the material characterised by physical properties, e.g. adhesiveness or hardness
    • 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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/293—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

The utility model provides a lithium ion battery group waterproof hinders moist structure, includes case groove and case lid, has distributed the battery module in the case groove, all winds around being equipped with the baffle around every battery module, all packs to absorb water heat-conducting material and pack closely in the inside of baffle, the inside of case lid, the inside of the bottom surface wall of case groove and the inside of the lateral wall of case groove, on the baffle, on the medial surface of case lid, on the bottom surface of case groove and on the lateral wall face of case groove all distribute the ventilative micropore that is linked together rather than inside. Fix the battery module in the sealed intracavity that case groove and case lid formed, the battery module conducts the heat to the case lid through the form of heat conduction, dispel the heat on the lateral wall and the bottom wall in case groove, simultaneously through the case lid, the moisture in the sealed intracavity air of the heat conduction material absorption that absorbs water in the lateral wall and the bottom wall in case groove, avoid moisture in the air to form the drop of water on the inner wall in case lid and case groove, play dampproofing effect, and then solved and blocked water and separated wet technological problem, the heat preservation and the heat dissipation to the battery module play good effect simultaneously.

Description

Lithium ion battery group waterproof hinders moist structure
Technical Field
The invention relates to a lithium ion battery, in particular to a waterproof and moisture-resistant structure of a lithium ion battery pack.
Background
When a track tractor, a mortar truck, a forklift, an excavator and the like operate in severe environments such as cold and humid environments, battery packs used for starting or driving on the vehicles or equipment are prone to being affected with damp and damaged, however, in order to dissipate heat of the battery packs, ventilation needs to be conducted inside the battery packs, and the ventilation of the battery packs can lead to humid air entering the inside of the battery packs, so that the water resistance and moisture insulation of the battery packs are difficult to achieve.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a waterproof and moisture-resistant structure of a lithium ion battery pack, which can prevent the battery pack from being damaged by moisture under the condition of ensuring the heat dissipation of the battery pack.
A lithium ion battery pack waterproof and moisture-resistant structure comprises a box groove and a box cover which are made of heat conducting materials, wherein the box cover is connected on a notch of the box groove in a sealing mode, a sealing cavity is formed between the box groove and the box cover, battery modules are distributed in the box groove, a partition plate made of the heat conducting materials is wound around each battery module, the partition plate is attached to the battery modules and is of a hollow structure, the box cover and the bottom wall of the box groove are of the hollow structure, the interior of the bottom wall of the box groove and the interior of the side wall of the box groove are communicated with the interior of the partition plate, the box cover is attached to the partition plate, one or more water-absorbing and heat-conducting substances among charcoal ash, lime, graphite and solidified glue are filled in the interior of the partition plate, the interior of the box cover, the interior of the bottom wall of the box groove and the interior of the side wall of the box groove and are tightly filled, the partition board, the inner side surface of the box cover, the bottom surface of the box groove and the side wall surface of the box groove are respectively provided with a plurality of breathable micropores communicated with the inside of the box groove; in order to ensure the uniformity and the air permeability of filling materials in the partition plate, the box groove and the box cover, air permeable plates and layered plates are uniformly distributed in the partition plate, the box cover, the side wall of the box groove and the bottom wall of the box groove, the air permeable plates and the layered plates are arranged at intervals, a filling channel is formed between the air permeable plates and the layered plates, and the water absorption heat conduction materials are located in the filling channel.
The working principle of the invention is as follows: on battery module generates heat back with heat transfer to baffle, case groove and case lid, the filler in baffle, case groove and the case lid has heat conduction function promptly and has the hydroscopicity again to dispel the heat to the surface of heat transfer to case groove and case lid, absorb the moisture of sealed intracavity simultaneously and receive in baffle, case groove and case lid three filler, thereby avoid the moisture to cool down on the internal face of case groove and case lid and condense into the water droplet.
Need to absorb water heat conduction material and maintain working for a period of time, further: and air vents are formed in two outer walls opposite to the box groove, and sealing covers are detachably and hermetically arranged on the air vents. Open sealed lid, let in dry gas from the blow vent on the one side outer wall of case groove, dry gas gets into sealed chamber and discharges the moisture in case groove and the case lid from the blow vent on the other side outer wall of case groove to the heat-conducting material that absorbs water in case groove and the case lid is dried and is maintained.
In order to facilitate the maintenance, the water absorption and heat conduction materials in the box groove and the box cover are dried and maintained, and further: the air vent is fixedly provided with a fan, and the fans on the two outer walls opposite to the box groove are arranged in opposite wind directions. The drying and maintaining device is placed in a dry environment, and the fans with opposite wind directions are turned on, so that the drying and maintaining of the water-absorbing and heat-conducting substances in the box groove and the box cover can be completed.
In order to facilitate heat dissipation, further: the battery module is the cube type, the battery module includes a row of battery equal centre gripping has the heat-conducting plate between the battery of battery module, and is adjacent homogeneous ization is connected with the connecting plate between the heat-conducting plate, the connecting plate is the heat conduction material and is located laminate between battery module and the baffle and with both.
Further: the heat-conducting plate and the connecting plate are both aluminum plates.
The fuse type, for improving the utilization ratio of the space in the tank, further: the battery modules are distributed in a rectangular array.
The invention has the beneficial effects that: fix the battery module in the sealed intracavity that case groove and case lid formed, the battery module conducts the heat to the case lid through the form of heat conduction, dispel the heat on the lateral wall and the bottom wall in case groove, simultaneously through the case lid, the moisture in the sealed intracavity air of the heat conduction material absorption that absorbs water in the lateral wall and the bottom wall in case groove, avoid moisture in the air to form the drop of water on the inner wall in case lid and case groove, reach dampproofing effect, and then solved and blocked water and separated wet technological problem, the heat preservation and the heat dissipation to the battery module play good effect and effect simultaneously.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the side wall of the case of the present invention;
FIG. 4 is an enlarged view of the structure of the area A in FIG. 3;
FIG. 5 is a schematic view showing an assembled structure of a sealing cap and a vent hole in the present invention;
fig. 6 is a schematic structural view of a battery module according to the present invention;
fig. 7 is a schematic cross-sectional view illustrating a battery module according to the present invention.
In the figure, 11, the tank; 111. a vent; 112. a sealing cover; 12. a box cover; 2. a partition plate; 3. a battery module; 31. a battery; 32. a connecting plate; 33. a heat conducting plate; 4. a laminate; 5. and (7) a breathable plate.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings. Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention. The terms of orientation such as left, center, right, up, down, etc. in the examples of the present invention are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.
The utility model provides a lithium ion battery group is waterproof hinders moist structure, combines fig. 1 to fig. 3, case groove 11 and case lid 12 including the heat conduction material is made, case lid 12 is sealed and fixed connection be in on the notch of case groove 11 form sealed chamber between case groove 11 and the case lid 12 distribution has battery module 3 in the case groove 11, all around being equipped with baffle 2 that the heat conduction material was made around every battery module 3, baffle 2 with the laminating of battery module 3, baffle 2 is hollow structure and communicates the setting each other, the bottom surface wall and the lateral wall of case groove 11 and case lid 12 are hollow structure, the inside of the bottom surface wall of case groove 11 and its lateral wall inside all with the inside of baffle 2 is linked together, case lid 12 with the laminating of baffle 2, the inside of case lid 12, the inside of the bottom surface wall of case groove 11 and the inside of the lateral wall of case groove 11 all fill with charcoal ash, One or more water-absorbing and heat-conducting substances of lime, graphite and setting glue are densely filled, and air-permeable micropores communicated with the inside of the partition plate 2, the inner side surface of the box cover 12, the bottom surface of the box groove 11 and the side wall surface of the box groove 11 are uniformly distributed on the partition plate, and the aperture of each air-permeable micropore is less than 2 nanometers.
As shown in fig. 4, air permeable plates 5 and layered plates 4 are distributed in the partition plate 2, the box cover 12, the side wall of the box groove 11 and the bottom wall of the box groove 11, the air permeable plates 5 and the layered plates 4 are arranged at intervals, a filling channel is formed between the air permeable plates 5 and the layered plates 4, and the water-absorbing and heat-conducting material is located in the filling channel. Air vents 111 are formed in two opposite outer walls of the box groove 11, as shown in fig. 5, sealing covers 112 are detachably and hermetically arranged on the air vents 111, the sealing covers 112 are made of one or two or more materials of polytetrafluoroethylene, silica gel and ethylene propylene diene monomer, and the sealing covers 112 are fixedly sleeved on the air vents 111. The sealing cover 112 is opened, the dry gas is introduced from the air vent 111 on the outer wall of one side of the tank groove 11, the dry gas enters the sealing cavity and the moisture in the tank groove 11 and the tank cover 12 is discharged from the air vent 111 on the outer wall of the other side of the tank groove 11, so that the water-absorbing and heat-conducting substances in the tank groove 11 and the tank cover 12 are dried and maintained. Fans are fixedly mounted on the air vents 111, and the fans on the two outer walls opposite to the box groove 11 are arranged in opposite wind directions. The drying and maintaining device is placed in a dry environment, and the fans with opposite wind directions are turned on, so that the drying and maintaining of the water-absorbing and heat-conducting substances in the box groove 11 and the box cover 12 can be completed.
In addition, as shown in fig. 6 and 7, the battery module is a square body, the battery module includes a row of batteries 31, heat-conducting plates 33 are clamped between the batteries 31 of the battery module, a connecting plate 32 is uniformly connected between the heat-conducting plates 33, the connecting plate 32 is a heat-conducting material and is located between the battery module 3 and the partition plate 2 and is attached to the battery module and the partition plate, and the bottom surfaces of the batteries 31 and the bottom surface of the box groove 11 are attached to each other. The heat-conducting plate 33 and the connecting plate 32 are both aluminum plates.
The working principle of the invention is as follows: after battery module 3 generates heat, with heat transfer to baffle 2, on case groove 11 and case lid 12, baffle 2, the filler material in case groove 11 and the case lid 12 has the heat conduction function promptly and has the hydroscopicity again, thereby dispel the heat with heat transfer to the surface of case groove 11 and case lid 12, simultaneously with the moisture absorption in the sealed intracavity to baffle 2, in the filler material of case groove 11 and case lid 12 three, thereby avoid the moisture to cool down and condense into the water droplet on the internal face of case groove 11 and case lid 12.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a lithium ion battery organizes waterproof moisture-resistant structure which characterized in that: the box cover is tightly and fixedly connected to a notch of the box groove, a sealing cavity is formed between the box groove and the box cover, battery modules are distributed in the box groove, partition plates made of heat conduction materials are wound around each battery module and attached to the battery modules, the partition plates are of hollow structures and are communicated with one another, the bottom wall and the side wall of the box groove and the box cover are of hollow structures, the interior of the bottom wall of the box groove and the interior of the side wall of the box groove are communicated with the interior of the partition plates, the box cover is attached to the partition plates, and one or more water-absorbing heat-conducting substances selected from wood ash, lime, graphite and solidified glue are filled in the interior of the partition plates, the interior of the box cover, the interior of the bottom wall of the box groove and the interior of the side wall of the box groove and are tightly filled, the inner side surface of the box cover, the bottom surface of the box groove and the side wall surface of the box groove are distributed with air-permeable micropores communicated with the inside of the box groove; the inner part of the partition board, the inner part of the box cover, the inner part of the side wall of the box groove and the inner part of the bottom wall of the box groove are uniformly distributed with the air permeable plate and the layered plate which are arranged at intervals, a filling channel is formed between the air permeable plate and the layered plate, and the water-absorbing heat-conducting material is positioned in the filling channel.
2. The lithium ion battery pack waterproof and moisture-proof structure of claim 1, wherein: and air vents are formed in two outer walls opposite to the box groove, and sealing covers are detachably and hermetically arranged on the air vents.
3. The lithium ion battery pack waterproof and moisture-resistant structure according to claim 2, wherein: the ventilating openings are fixedly provided with fans, and the fans on the two outer walls opposite to the box grooves are arranged in opposite wind directions.
4. The lithium ion battery pack waterproof and moisture-proof structure of claim 1, wherein: the battery module is the square body type, the battery module includes a row of battery all the centre gripping has the heat-conducting plate between the battery of battery module, and is adjacent homogeneous body is connected with the connecting plate between the heat-conducting plate, the connecting plate is the heat conduction material and is located between battery module and the baffle and laminate with both.
5. The lithium ion battery pack water and moisture resistant structure of claim 4, wherein: the heat-conducting plate and the connecting plate are both aluminum plates.
6. The lithium ion battery pack waterproof and moisture-resistant structure according to claim 4, wherein: the battery modules are distributed in a rectangular array.
CN202210331871.6A 2022-03-31 2022-03-31 Lithium ion battery group waterproof hinders moist structure Active CN114497849B (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211629253U (en) * 2020-01-14 2020-10-02 苟绍玲 Explosion-proof new forms of energy battery box

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TWI377465B (en) * 2010-03-11 2012-11-21 Delta Electronics Inc Heat dissipating module and electronic device using such heat dissipating module
CN205177912U (en) * 2015-12-02 2016-04-20 泸州卓峰新能源科技有限公司 Bury case dampproofingly
CN207441812U (en) * 2017-11-20 2018-06-01 宁德时代新能源科技股份有限公司 Babinet
CN112397844B (en) * 2019-08-15 2022-08-09 比亚迪股份有限公司 Battery module
CN211182270U (en) * 2019-10-14 2020-08-04 江苏威蜂动力工业有限公司 A dampproofing formula shell for car lithium cell group
CN114006083A (en) * 2021-11-04 2022-02-01 殷永胜 Guarantee dampproofing fire behaviour and have group battery of good heat dissipation function

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211629253U (en) * 2020-01-14 2020-10-02 苟绍玲 Explosion-proof new forms of energy battery box

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