CN106941200A - Soft-package battery radiating water cooling board and battery modules - Google Patents
Soft-package battery radiating water cooling board and battery modules Download PDFInfo
- Publication number
- CN106941200A CN106941200A CN201710147897.4A CN201710147897A CN106941200A CN 106941200 A CN106941200 A CN 106941200A CN 201710147897 A CN201710147897 A CN 201710147897A CN 106941200 A CN106941200 A CN 106941200A
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- CN
- China
- Prior art keywords
- water pipe
- water
- battery
- heat sink
- soft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- H01M10/65—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
- H01M10/6567—Liquids
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
A kind of soft-package battery radiating water cooling board and battery modules, including：Heat sink and the water pipe being located on heat sink, the heat sink include：Plate-like main body and the water pipe installation portion formed by main part sidepiece bending crimp extension, the water pipe are installed in the water pipe installation portion；Above-mentioned soft-package battery radiating water cooling board and battery modules, heat sink tow sides are contacted with battery, and two ends crimping surrounds metal tube, and heat reaches rapidly two ends, walked to metallic water pipe, then by the water-cooled liquid band flowed, radiating water cooling board is simple in construction, easy processing, low cost, reliability is high；Metallic water pipe on heat sink edge to be walked radiated around battery；Radiating water cooling board is simply expansible, is used on soft-package battery, plays good radiating effect, and low cost, simple and reliable process is high.
Description
Technical field
The present invention relates to battery heat dissipation device, more particularly to a kind of soft-package battery radiating water cooling board and battery modules.
Background technology
The construction for heat radiating device of existing soft-package battery is complicated, processing difficulties and yielding, and complex process, cost is higher.
The content of the invention
Based on this, it is necessary to provide a kind of soft-package battery radiating water cooling board easy to process.
There is provided a kind of soft-package battery module easy to process simultaneously.
A kind of soft-package battery radiating water cooling board, including：Heat sink and the water pipe being located on heat sink, the heat sink bag
Include：Plate-like main body and the water pipe installation portion formed by main part sidepiece bending crimp extension, the water pipe are installed in the water
In pipe installation portion.
In a preferred embodiment, the water pipe installation portion is arranged on the main part both sides, the water pipe insertion or volume
Enter in the water pipe installation portion and be welded to connect with the water pipe installation portion.
In a preferred embodiment, gap is formed between the water pipe installation portion edge and the main part edge, institute
State between water pipe and the heat sink carried out at the gap at the water pipe installation portion edge and the main part edge soldering or
Soldering.
In a preferred embodiment, the water pipe is metallic water pipe, and the water pipe includes：Intake pipe portion, water outlet pipe portion and
The connecting portion of the connection water inlet pipe portion and water outlet pipe portion, the water inlet pipe portion be arranged in parallel or near parallel with the water outlet pipe portion
Set, the water inlet pipe portion, water outlet pipe portion are arranged on the main part both sides and insert or be involved in the water pipe installation portion.
In a preferred embodiment, the water pipe is the circular tube that aluminium material or copper material are made, the heat sink
Upper and lower surface and the water pipe formation one end open the first cavity volume and the second cavity volume.
In a preferred embodiment, the heat sink is that thickness is that 0.5-0.8mm plate formings are formed.
A kind of soft-package battery module, including：Radiating water cooling board and the first electricity for being arranged on the radiating water cooling board top and bottom
Pond and the second battery, the radiating water cooling board include：Heat sink and the water pipe being located on heat sink, the heat sink include：Plate
Shape main part and the water pipe installation portion formed by main part sidepiece bending crimp extension, the water pipe are installed in the water pipe peace
In dress portion, the first cavity volume and the second cavity volume of the upper and lower surface of the main part and the water pipe formation one end open, described the
One battery is arranged in the first cavity volume, and second battery is arranged in second container.
In a preferred embodiment, it is provided with insulation between first battery, the second battery and the radiating water cooling board
Film.
In a preferred embodiment, the insulator film thickness is 0.02mm.
In a preferred embodiment, the main part is adapted with first battery or the second battery and set, the water
Pipe installation portion is arranged on the main part both sides, and the water pipe is metallic water pipe, and the water pipe includes：Water inlet pipe portion, outlet pipe
Portion and the connecting portion of connection water inlet pipe portion and the water outlet pipe portion, the water inlet pipe portion be arranged in parallel with the water outlet pipe portion or
Closely it be arranged in parallel, the water inlet pipe portion, water outlet pipe portion are arranged on the main part both sides and insert or be involved in the water pipe and install
In portion, be formed with gap between the water pipe installation portion edge and the main part edge, the water pipe and the heat sink it
Between soldering or soldering are carried out at the gap at the water pipe installation portion edge and the main part edge.
Above-mentioned soft-package battery radiating water cooling board and soft-package battery module, 2 soft-package batteries are placed on using radiating water cooling board
Between, radiating water cooling board is made up of heat sink and water pipe, forms a heat sink with water cooling tube, and water pipe passes through radiating water cooling board
The water pipe installation portion of sidepiece bending curling is fixed on the positioning, by radiating water cooling board between 2 soft-package batteries, cell heat
Reach after heat sink, conducted heat to surrounding, to water pipe, the liquid quickly flowed in water pipe takes away heat, and work is circulated with this, rise
To the effect radiated to battery；Heat sink tow sides are contacted with battery, and two ends crimping surrounds metal tube, and welding, heat is rapid
Two ends are reached, are walked to metallic water pipe, then by the water-cooled liquid band flowed.Radiating water cooling board is simple in construction, easy processing, and low cost can
It is high by property；Metallic water pipe on heat sink edge to be walked radiated around battery；Radiating water cooling board is simply expansible, is used in
On soft-package battery, good radiating effect is played, low cost, simple and reliable process is high.
Brief description of the drawings
Fig. 1 is the schematic diagram of the soft-package battery radiating water cooling board of one embodiment of the invention；
Fig. 2 is the decomposition texture schematic diagram of the soft-package battery radiating water cooling board of one embodiment of the invention；
Fig. 3 for one embodiment of the invention soft-package battery radiating water cooling board water pipe installation portion and main part junction part
Structural representation；
Fig. 4 is the part-structure schematic diagram of the soft-package battery module of one embodiment of the invention；
Fig. 5 is the decomposition texture partial schematic diagram of the soft-package battery module of one embodiment of the invention.
Embodiment
As shown in Figure 1 to Figure 2, the soft-package battery radiating water cooling board 100 of one embodiment of the invention, including：Heat sink 20 and
It is located at the water pipe 40 on heat sink 20.Heat sink 20 includes：Plate-like main body 22 and by the sidepiece of main part 22 bend crimp extension
The water pipe installation portion 24 of formation.Water pipe 40 is installed in water pipe installation portion 24.
In view of thickness problem, soft-package battery radiating water cooling board 100 must do very thin, i.e. the sectional area very little of water flow passage,
Water resistance is big；The very thin thickness of material also results in that processing difficulties are yielding, and complex process causes cost higher；The present embodiment dissipate
Hot plate 20 is only in sidepiece bending cans outlet pipe installation portion 24, and shaping is simple easily.
Further, the water pipe installation portion 24 of the present embodiment is arranged on the both sides of main part 22, and water pipe 40 inserts or be involved in water pipe
It is welded to connect in installation portion 24 and with the water pipe installation portion 24.
As shown in figure 3, further, forming seamed between the edge of water pipe installation portion 24 and the edge of main part 22 of the present embodiment
Gap 27.Carried out between water pipe 40 and heat sink 20 at the gap 27 at the edge of water pipe installation portion 24 and the edge of main part 22 soldering or
Soldering.
Because the intake-outlet of water pipe 40 is necessary for pipe, it is necessary to be connected with water-cooled plate weld with water channel, work is also increased
Skill difficulty；The present embodiment is used carries out water pipe 40 with dissipating at the gap 27 at the edge of water pipe installation portion 24 and the edge of main part 22
Hot plate 20 carries out soldering or soldering, and welding procedure is simple to operation.
Further, the water pipe 40 of the present embodiment is metallic water pipe.It is preferred that, the water pipe 40 of the present embodiment is aluminium material or copper
The circular cross-section metal tube that material is made.
Further, the water pipe 40 of the present embodiment includes：Intake pipe portion 42, water outlet pipe portion 44 and connection water inlet pipe portion 42 with
The connecting portion 46 of water outlet pipe portion 44.Water inlet pipe portion 42 be arranged in parallel with water outlet pipe portion 44 or closely be arranged in parallel.Water inlet pipe portion 42, go out
Water pipe portion 44 is arranged on the both sides of main part 22 and inserts or be involved in water pipe installation portion 24.
Further, the first cavity volume 25 of the upper and lower surface of the heat sink 20 of the present embodiment and water pipe 40 formation one end open with
Second cavity volume.
Further, the heat sink 20 of the present embodiment is that thickness is that 0.5-0.8mm plate formings are formed.
The heat sink 20 of the present embodiment, which can be used, shapes metallic plate punching outlet pipe installation portion 24, then by metallic water pipe
Water pipe installation portion 24 is penetrated, then welds water pipe 40 with heat sink 20.
Also it can be put into using metallic water pipe 40 on sheet metal, then punching press flanging is carried out to sheet metal based on metallic water pipe
Sizing shaping outlet pipe installation portion 24 wraps metallic water pipe wherein, then metallic water pipe is welded with heat sink.
As shown in Fig. 4 to Fig. 5, the soft-package battery module 102 of one embodiment of the invention, including：Radiating water cooling board 100 and
It is separately positioned on the first battery 60 and the second battery 80 of the top and bottom of radiating water cooling board 100.Radiating water cooling board 100 includes：Radiating
Plate 20 and the water pipe 40 being located on heat sink 20.Heat sink 20 includes：Plate-like main body 22 and by the sidepiece of main part 22 bend
The water pipe installation portion 24 of crimp extension formation.Water pipe 40 is installed in water pipe installation portion 24.
Further, the upper and lower surface of the main part 22 of the heat sink 20 of the present embodiment forms one end open with water pipe respectively
First cavity volume 25 and the second cavity volume.First battery 60 is arranged in the first cavity volume 25, and the second battery 80 is arranged in second container.
The battery 60 of main part 22 and first or the second battery 80 of the present embodiment, which are adapted, to be set.
Further, it is provided with insulation between first battery 60 of the present embodiment, the second battery 80 and radiating water cooling board 100
Film.
Further, it is preferred that the insulator film thickness of the present embodiment is 0.02mm.
Further, the water pipe installation portion 24 of the present embodiment is arranged on the both sides of main part 22, and water pipe 40 inserts or be involved in water pipe
It is welded to connect in installation portion 24 and with the water pipe installation portion 24.
As shown in figure 3, further, forming seamed between the edge of water pipe installation portion 24 and the edge of main part 22 of the present embodiment
Gap 27.Carried out between water pipe 40 and heat sink 20 at the gap 27 at the edge of water pipe installation portion 24 and the edge of main part 22 soldering or
Soldering.
Further, the water pipe 40 of the present embodiment is metallic water pipe.It is preferred that, the water pipe 40 of the present embodiment is aluminium material or copper
The circular cross-section metal tube that material is made.
Further, the water pipe 40 of the present embodiment includes：Intake pipe portion 42, water outlet pipe portion 44 and connection water inlet pipe portion 42 with
The connecting portion 46 of water outlet pipe portion 44.Water inlet pipe portion 42 be arranged in parallel with water outlet pipe portion 44 or closely be arranged in parallel.Water inlet pipe portion 42, go out
Water pipe portion 44 is arranged on the both sides of main part 22 and inserts or be involved in water pipe installation portion 24.
Further, the first cavity volume of the upper and lower surface of the heat sink 20 of the present embodiment respectively with the formation one end open of water pipe 40
25 and second cavity volume.
Further, the heat sink 20 of the present embodiment is that thickness is that 0.5-0.8mm plate formings are formed.
Further, first battery 60 or the second battery 80 of the present embodiment include：Battery main body 62 and it is arranged on battery master
The edge of a wing 64 of the side of body 62.The battery main body 62 of first battery 60 is contained in the first cavity volume 25, the battery master of the second battery 80
Body 62 is contained in the second cavity volume.The support of the edge of a wing 64 is located on water pipe installation portion 24.
Further, the soft-package battery module 102 of the present embodiment also includes the support for being arranged on both sides.First battery 60 or the
The edge of a wing 64 of two batteries 80 is installed in support, is positioned and fixed by support.
The radiating water cooling board 100 of the present invention is placed between 2 soft-package batteries, and radiating water cooling board 100 is by heat sink 20 and water
Pipe 40 is constituted, using welding procedure one heat sink with water cooling tube of formation, by radiating water cooling board 100 mounted in 2 soft-package batteries
Between, cell heat is reached after heat sink, is conducted heat to surrounding, to water water pipe 40, and the liquid quickly flowed in water pipe 40 is by heat
Take away, work is circulated with this, play the effect radiated to battery.
Water pipe 40 is metal tube, and water inlet pipe portion 42 has water inlet, and water outlet pipe portion 44 sets delivery port, using aluminium material or copper
Material, middle flow water-cooled liquid.
Heat sink 20, using aluminium material or copper material, according to demand using sheet metal thickness, usually using 0.5 ~ 0.8mm it
Between；Tow sides are contacted with battery, and two ends crimping surrounds metal tube, are welded, heat reaches rapidly two ends, to metallic water pipe 40,
Walked again by the water-cooled liquid band flowed.
Radiating water cooling board 100 is arranged between two pieces of batteries, needs to paste dielectric film between heat sink 20 and battery, about
0.02mm。
Simple in construction, the easy processing of the radiating water cooling board 100 of the present invention, low cost, reliability is high；Gold on heat sink 20
Category water pipe 40 to be walked radiated around battery；Heat sink 20 in the middle of radiating water cooling board 100 is welded with water pipe 40（Soldering
Or soldering process）It is fixed.
The present invention is used on soft-package battery using a kind of simple expansible radiating water cooling board 100, plays good dissipate
Thermal effect, low cost, simple and reliable process is high.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of soft-package battery radiating water cooling board, it is characterised in that including：Heat sink and the water pipe being located on heat sink, it is described
Heat sink includes：Plate-like main body and the water pipe installation portion formed by main part sidepiece bending crimp extension, the water pipe installing
In the water pipe installation portion.
2. soft-package battery radiating water cooling board according to claim 1, it is characterised in that：The water pipe installation portion is arranged on institute
Main part both sides are stated, the water pipe inserts or is involved in the water pipe installation portion and is welded to connect with the water pipe installation portion.
3. soft-package battery radiating water cooling board according to claim 2, it is characterised in that：The water pipe installation portion edge and institute
State and be formed with gap between main part edge, between the water pipe and the heat sink in the water pipe installation portion edge with it is described
Soldering or soldering are carried out at the gap at main part edge.
4. soft-package battery radiating water cooling board according to claim 1, it is characterised in that：The water pipe is metallic water pipe, institute
Stating water pipe includes：The connecting portion for the pipe portion, water outlet pipe portion and the connection water inlet pipe portion and water outlet pipe portion of intaking, the water inlet pipe
Portion be arranged in parallel with the water outlet pipe portion or closely be arranged in parallel, and the water inlet pipe portion, water outlet pipe portion are arranged on the main part two
Side is simultaneously inserted or is involved in the water pipe installation portion.
5. the soft-package battery radiating water cooling board according to Claims 1-4 any one, it is characterised in that：The water pipe is
The circular tube that aluminium material or copper material are made, the of the upper and lower surface of the heat sink and the water pipe formation one end open
One cavity volume and the second cavity volume.
6. the soft-package battery radiating water cooling board according to Claims 1-4 any one, it is characterised in that：The heat sink
It is that 0.5-0.8mm plate formings are formed for thickness.
7. a kind of soft-package battery module, it is characterised in that including：Radiating water cooling board and it is arranged on above and below the radiating water cooling board
First battery and the second battery in face, the radiating water cooling board include：Heat sink and the water pipe being located on heat sink, it is described to dissipate
Hot plate includes：Plate-like main body and the water pipe installation portion formed by main part sidepiece bending crimp extension, the water pipe are installed in
In the water pipe installation portion, the first cavity volume and second of the upper and lower surface of the main part and water pipe formation one end open holds
Chamber, first battery is arranged in the first cavity volume, and second battery is arranged in second container.
8. soft-package battery module according to claim 7, it is characterised in that：First battery, the second battery with it is described
Dielectric film is provided between radiating water cooling board.
9. soft-package battery module according to claim 8, it is characterised in that：The insulator film thickness is 0.02mm.
10. the soft-package battery module according to claim 7 to 9 any one, it is characterised in that：The main part with it is described
First battery or the second battery, which are adapted, to be set, and the water pipe installation portion is arranged on the main part both sides, and the water pipe is gold
Belong to water pipe, the water pipe includes：The connecting portion for the pipe portion, water outlet pipe portion and the connection water inlet pipe portion and water outlet pipe portion of intaking, institute
State and be arranged in parallel or closely be arranged in parallel with the water outlet pipe portion into water pipe portion, the water inlet pipe portion, water outlet pipe portion are arranged on described
Main part both sides are simultaneously inserted or are involved in the water pipe installation portion, between the water pipe installation portion edge and the main part edge
Gap is formed with, in the water pipe installation portion edge and the gap at the main part edge between the water pipe and the heat sink
Place carries out soldering or soldering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710147897.4A CN106941200A (en) | 2017-03-14 | 2017-03-14 | Soft-package battery radiating water cooling board and battery modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710147897.4A CN106941200A (en) | 2017-03-14 | 2017-03-14 | Soft-package battery radiating water cooling board and battery modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106941200A true CN106941200A (en) | 2017-07-11 |
Family
ID=59469482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710147897.4A Pending CN106941200A (en) | 2017-03-14 | 2017-03-14 | Soft-package battery radiating water cooling board and battery modules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106941200A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863586A (en) * | 2017-10-25 | 2018-03-30 | 常州车之翼动力科技有限公司 | Have the battery modules of liquid cooling plate |
| CN109473577A (en) * | 2018-12-27 | 2019-03-15 | 风帆有限责任公司 | A kind of shell of the lithium ion battery mould group of good heat dissipation effect |
| CN111211371A (en) * | 2018-11-21 | 2020-05-29 | 宁德时代新能源科技股份有限公司 | Heat exchange plate and battery module |
| CN115312920A (en) * | 2022-10-12 | 2022-11-08 | 深圳海润新能源科技有限公司 | Battery cell and energy storage device |
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| CN103959554A (en) * | 2011-12-02 | 2014-07-30 | Sk新技术株式会社 | Water-cooling type secondary battery |
| CN104716397A (en) * | 2013-12-16 | 2015-06-17 | 认知控管株式会社 | Secondary battery module |
| KR20150074384A (en) * | 2013-12-24 | 2015-07-02 | 인지컨트롤스 주식회사 | Secondary battery module |
| CN205050894U (en) * | 2015-09-28 | 2016-02-24 | 浙江天能能源科技有限公司 | Water cold die piece group battery |
| CN206639891U (en) * | 2017-03-14 | 2017-11-14 | 深圳市朗能动力技术有限公司 | Soft-package battery radiating water cooling board and battery modules |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103959554A (en) * | 2011-12-02 | 2014-07-30 | Sk新技术株式会社 | Water-cooling type secondary battery |
| US20140335390A1 (en) * | 2011-12-02 | 2014-11-13 | Sk Innovation Co., Ltd. | Water-Cooling Type Secondary Battery |
| CN104716397A (en) * | 2013-12-16 | 2015-06-17 | 认知控管株式会社 | Secondary battery module |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863586A (en) * | 2017-10-25 | 2018-03-30 | 常州车之翼动力科技有限公司 | Have the battery modules of liquid cooling plate |
| CN107863586B (en) * | 2017-10-25 | 2024-02-23 | 新石器慧通（北京）科技有限公司 | Battery module with liquid cooling plate |
| CN111211371A (en) * | 2018-11-21 | 2020-05-29 | 宁德时代新能源科技股份有限公司 | Heat exchange plate and battery module |
| CN111211371B (en) * | 2018-11-21 | 2022-04-01 | 宁德时代新能源科技股份有限公司 | Heat exchange plate and battery module |
| CN114614165A (en) * | 2018-11-21 | 2022-06-10 | 宁德时代新能源科技股份有限公司 | Battery module |
| CN114784407A (en) * | 2018-11-21 | 2022-07-22 | 宁德时代新能源科技股份有限公司 | Heat exchange plate and battery module |
| CN114784420A (en) * | 2018-11-21 | 2022-07-22 | 宁德时代新能源科技股份有限公司 | Heat exchange plate and battery module |
| CN114784420B (en) * | 2018-11-21 | 2024-02-20 | 宁德时代新能源科技股份有限公司 | Heat exchange plate and battery module |
| CN109473577A (en) * | 2018-12-27 | 2019-03-15 | 风帆有限责任公司 | A kind of shell of the lithium ion battery mould group of good heat dissipation effect |
| CN115312920A (en) * | 2022-10-12 | 2022-11-08 | 深圳海润新能源科技有限公司 | Battery cell and energy storage device |
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