CN108520991A - A kind of heat management system of novel on-vehicle lithium ion battery - Google Patents
A kind of heat management system of novel on-vehicle lithium ion battery Download PDFInfo
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- CN108520991A CN108520991A CN201810584328.0A CN201810584328A CN108520991A CN 108520991 A CN108520991 A CN 108520991A CN 201810584328 A CN201810584328 A CN 201810584328A CN 108520991 A CN108520991 A CN 108520991A
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- cold plate
- heat dissipation
- fork type
- battery
- fluid distribution
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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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M10/655—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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention relates to a kind of heat management systems of novel on-vehicle lithium ion battery, which includes rectangular ferric phosphate lithium cell module, heat dissipation cold plate, fork type top fluid distribution pipe guidance tape, distribution duct cover boards, top fluid distribution duct combines up and down with cover board, the each outlet of distribution duct is connected with heat dissipation cold plate respectively, heat dissipation cold plate configuration alternate with battery.The system, which often covers, is divided into two groups of pipelines up and down, cold plate interior conduit fluid flow direction adjacent with battery is opposite, it is each up and down that there are one entrances, coolant liquid is assigned in each cold plate by the fork type manifold in distribution duct, there are four hot channels in each cold plate, is finally flowed out in coolant liquid from cold plate side exit is unified.The present invention can be effectively reduced the temperature of vehicle mounted dynamic battery, and solve the problems, such as that battery modules internal difference in temperature in electric discharge is larger, can ensure the temperature uniformity in battery modules, while the system structure is compact, be suitable for the limited situation in this space of automobile.
Description
Technical field
The present invention relates to a kind of heat management system of vehicle-mounted lithium ion battery more particularly to a kind of vehicle-mounted lithium ions of fork type
The heat management system of battery.
Background technology
With the fast development of auto industry, automobile bring people life operated quickly and conveniently while, also give the mankind with
Many serious problems are carried out, electric vehicle has obtained great development as a result,.Power as electric vehicle is former, lithium ion
Battery, temperature have its overall performance the influence of highly significant.First, because the inconsistent of temperature leads to each monomer in battery pack
State it is inconsistent so that individual monomers occur overcharging, cross and put phenomenon.And super-charge super-discharge can all bring damage to battery,
Shorten battery life.Second, battery is very sensitive to temperature, and for temperature at 40 DEG C or 50 DEG C or more, battery life can rapid decay.
Temperature is excessively high not only to make battery performance decay, but also can cause safety problem.When battery temperature be increased to it is certain
Value, a series of exothermic reactions can occur for inside battery, so as to cause two kinds of extreme cases：One, the temperature of reactive material reaches
Fire occurs to its ignition temperature；Two, internal temperature of battery rises, and so that reaction speed is more accelerated, temperature further increases, and leads
Activation substance decomposition, active material and electrolyte reaction can all generate a certain amount of gas, and inner pressure of battery steeply rises, seriously
When gas accumulation can also cause thermal explosion.
In order to play the optimum performance of battery and extend battery life as possible, it is necessary to battery be allowed to be operated in temperature model appropriate
In enclosing.This range is had exceeded, not only battery performance declines, and shorter battery life is serious also to cause safety accident.However
The ambient temperature range of vehicle operation is very wide in range, in addition fever of the battery due to itself, may make own temperature be higher by environment
The tens of degree of temperature cause battery temperature to exceed rational operating temperature range.It is therefore desirable to control the temperature range of battery,
It is exactly that heat management is carried out to battery.
The target of battery thermal management includes：One, make battery work at a suitable temperature.This temperature range is generally kept
At 35 DEG C or less；Two, each battery cell is made to be in uniform temperature field, it is considered that, the temperature of the monomer in battery pack
Difference should be less than 5 DEG C.
Development of the cooling system of battery through more than ten years primarily forms following several technologies：Using air as the battery of medium
Cooling system, using liquid as the battery heat removal system of medium, the battery heat removal system based on phase-change heat transfer media/material.Wherein,
Air cooling system equipment is easy for installation and at low cost, but the type of cooling heat-sinking capability is limited, and by ambient enviroment（Temperature,
Wind speed etc.）It is affected, research shows that environment temperature is more than after 35 DEG C, the effect of air cooling can substantially reduce.It is multiple in high temperature etc.
Under the conditions of miscellaneous, power battery heat dissipation has higher requirement, use liquid as cooling medium for power battery heat dissipation become for
May, cooling effect is more preferable.Phase-change material refers to varying with temperature and changing form and can provide the substance of latent heat.Phase transformation material
Material has solid-state to become liquid or become solid process from liquid being known as phase transition process, and at this moment phase-change material will absorb or release is big
Latent heat is measured, no matter from energy saving, raising vehicle course continuation mileage, or from the point of view of the miniaturization of vehicle, using phase-change material
Battery heat removal system foreground is very wide, but phase-change material is due at high price, extensive there is no being obtained on electric vehicle at present
Using.
Invention content
The comprehensive analysis to all kinds of technologies in background, the present invention propose a kind of heat management system of vehicle-mounted lithium ion battery
System.
A kind of heat management system of novel on-vehicle lithium ion battery proposed by the present invention, including inlet duct, distribution duct
Cover board, fork type top fluid distribution pipe guidance tape, heat dissipation cold plate, rectangular ferric phosphate lithium cell module, on the fork type of this system
Layer fluid distribution pipe guidance tape connect with distribution duct cover plate combination and respectively places one group in heat dissipation cold plate upper and lower side, the distribution pipe
Road cover board is arranged above fork type top fluid distribution pipe guidance tape, and tree is equipped in the fork type top fluid distribution pipe guidance tape
Wooden fork type top fluid distribution duct, the outlet of each fork type top fluid distribution duct are connected with heat dissipation cold plate respectively, each to dissipate
Four hot channels, heat dissipation cold plate configuration alternate with rectangular ferric phosphate lithium cell module, each rectangular phosphorus are machined in hot cold plate
Sour lithium iron battery module both sides are bonded with heat dissipation cold plate, and adjacent heat dissipation cold plate interior conduit fluid flow direction is opposite；Upper and lower two points
An inlet duct is respectively provided on distribution pipes cover board；
In fork type top fluid distribution duct, it is first order channel that every point, which has Pyatyi channel, entrance, and outlet is level V
Channel, every grade has a 2i-1 parallel channels, and i indicates grade where channel, and the equivalent diameter in channels at different levels is from the first order to last one
Grade reduces step by step, and finally outlet is connected with lower layer heat dissipation cold plate at level V channel；
The design of fork type top fluid distribution pipe guidance tape is to be based on entropy generation minimization method, theiThe equivalent diameter in grade channelD eq,i With
TheiThe equivalent diameter in+1 grade of channelD eq,i+1 Meet following formula：
Since inner space of vehicle is limited, so every grade of pipeline cannot be long；But pipeline is too short just to cannot be satisfied fluid distribution
Even demand；Therefore the length Li in i-stage channel meets following formula：
C is the constant more than 1 in formula, is adjusted according to structural requirement.
Further, the distribution duct cover board, fork type top fluid distribution pipe guidance tape and heat dissipation cold plate are all made of height
Thermally conductive materials.
Further, the cross-section of pipeline in fork type top fluid distribution pipe guidance tape is regular quadrangle.
Further, the flowing of fluids within pipes provides power using water pump, and the electric energy of water pump consumption is by electric vehicle electricity
Pond itself provides.
When the present invention works, suitable heat dissipating fluid is selected, most of heat on rectangular ferric phosphate lithium cell module is first
It is transmitted on heat dissipation cold plate in a manner of heat conduction, the heat of heat dissipation cold plate is by the band by convection of the fluid in its internal pipeline
It walks, is finally reached the purpose for reducing rectangular ferric phosphate lithium cell module temperature.Power is provided by the flowing of fluid of water pump, pump disappears
The electric energy of consumption is provided by batteries of electric automobile itself.The present invention not only good heat dissipation effect, and it is very low to consume energy.The pipeline of use
Flow distribution mode is compact-sized, has saved space well.By the flow, temperature and the cold plate inner tube that change heat dissipating fluid
Diameter size is adapted to the temperature requirement needed for various environment temperatures.
The present invention may be used as the heat management system of vehicle-mounted lithium ion battery, have very high heat dissipation performance, Ke Yigao
Effect ground reduces the temperature of vehicle-mounted lithium ion battery module, and solves in vehicle-mounted lithium ion battery module between different battery cells
The larger problem of the temperature difference, it is ensured that the temperature uniformity in module between battery；It is not scattered to take up space, compact-sized, integrated level
It is higher.
Description of the drawings
Fig. 1 is the heat management system tomograph of lithium ion battery；
Fig. 2 is one group of pipeline flow-direction simplified schematic diagram of invention；
Fig. 3 is the workflow of entire heat management system；
Fig. 4 is fork type top fluid distribution pipe guidance tape vertical view.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Picture 1-4, a kind of heat management system of novel on-vehicle lithium ion battery, including inlet duct 1, distribution duct cover board
2, fork type top fluid distribution pipe guidance tape 3, heat dissipation cold plate 4, rectangular ferric phosphate lithium cell module 5, on the fork type of this system
Layer fluid distribution pipe guidance tape 3 combines connection with distribution duct cover board 2 and respectively places one group, described point in 4 upper and lower side of heat dissipation cold plate
Distribution pipes cover board 2 is arranged above fork type top fluid distribution pipe guidance tape 3, the fork type top fluid distribution pipe guidance tape 3
It is interior to be equipped with fork type top fluid distribution duct 6, the outlet of each fork type top fluid distribution duct 6 respectively with heat dissipation cold plate 4
It is connected, four hot channels is machined in each heat dissipation cold plate 4, heat dissipation cold plate 4 is alternate with rectangular ferric phosphate lithium cell module 5 to match
It sets, each rectangular 5 both sides of ferric phosphate lithium cell module are bonded with heat dissipation cold plate 4, adjacent 4 interior conduit fluid of heat dissipation cold plate flow direction
On the contrary；It is respectively provided with an inlet duct 1 on upper and lower two distribution duct cover boards 2；
In fork type top fluid distribution duct 6, it is first order channel that every point, which has Pyatyi channel, entrance, and outlet is the 5th
Grade channel, every grade has a 2i-1 parallel channels, and i indicates channel place grade, the equivalent diameter in channels at different levels from the first order to the end
Level-one reduces step by step, and finally outlet is connected with lower layer heat dissipation cold plate 4 at level V channel；
The design of fork type top fluid distribution pipe guidance tape 3 is to be based on entropy generation minimization method, theiThe equivalent diameter in grade channelD eq,i With
TheiThe equivalent diameter in+1 grade of channelD eq,i+1 Meet following formula：
Since inner space of vehicle is limited, so every grade of pipeline cannot be long；But pipeline is too short just to cannot be satisfied fluid distribution
Even demand；Therefore the length Li in i-stage channel meets following formula：
C is the constant more than 1 in formula, it is proposed that its value is not less than 5, is adjusted according to structural requirement.
Cross-section of pipeline in described point of fork type top fluid distribution pipe guidance tape 3 is regular quadrangle.
Entire cooling system is mainly based on the convection current heat transfer of fluid in heat dissipation cold plate 4, and in diabatic process, heat dissipation is cold
Plate 4 is directly contacted with rectangular ferric phosphate lithium cell module 5, so distribution pipes cover board 2, fork type top fluid distribution pipe guidance tape 3
It is all made of high conductivity material with heat dissipation cold plate 4.
The flowing of fluids within pipes provides power using water pump, and the electric energy of water pump consumption is carried by batteries of electric automobile itself
For.
Embodiment 1：By taking the hot environment in midsummer as an example, in conjunction with vehicle behavior, environment temperature is 40 DEG C.Work as battery discharge
When multiplying power is 1C, cooling system is not installed, battery cell maximum temperature is 63.42 DEG C, has been much larger than normal battery operation temperature
Degree.
Install heat management system after, environment temperature be set as 40 DEG C, battery discharge multiplying power be 1C, heat dissipating fluid medium is liquid
Water, 30 DEG C of heat dissipating fluid temperature, by fluid flow in heat dissipation cold plate be set to 0.3g/s, 0.5g/s, 1g/s, 2g/s, 3g/s,
5g/s counts each battery mean temperature of battery modules.The temperature difference, battery cell between battery modules maximum temperature, battery cell
Internal difference in temperature is held in relatively low range, fluid flow 1g/s wherein in heat dissipation cold plate, and temperature is 26 DEG C, the system radiating
Effect is preferable.
The present invention is not only applicable to radiate to ferric phosphate lithium cell module, can also to other type model lithiums from
The equipment that the similar needs such as sub- battery, fuel cell, electronic product radiate radiates.
Claims (4)
1. a kind of heat management system of novel on-vehicle lithium ion battery, including inlet duct（1）, distribution duct cover board（2）, crotch
Type top fluid distribution pipe guidance tape（3）, heat dissipation cold plate（4）, rectangular ferric phosphate lithium cell module（5）, which is characterized in that this system
Fork type top fluid distribution pipe guidance tape（3）With distribution duct cover board（2）Combination connects and in heat dissipation cold plate（4）Upper and lower side is each
One group is placed, the distribution duct cover board（2）It is arranged in fork type top fluid distribution pipe guidance tape（3）Top, the fork type
Top fluid distribution pipe guidance tape（3）It is interior to be equipped with fork type top fluid distribution duct（6）, each fork type top fluid distribution duct
（6）Outlet respectively with heat dissipation cold plate（4）It is connected, each heat dissipation cold plate（4）Inside it is machined with four hot channels, heat dissipation cold plate
（4）With rectangular ferric phosphate lithium cell module（5）Alternate configuration, each rectangular ferric phosphate lithium cell module（5）Both sides and heat dissipation are cold
Plate（4）Fitting, adjacent heat dissipation cold plate（4）Interior conduit fluid flow direction is opposite；Upper and lower two distribution duct cover boards（2）On be respectively provided with
One inlet duct（1）；
In fork type top fluid distribution duct（6）In, every point has a Pyatyi channel, and entrance is first order channel, and outlet is the
Pyatyi channel, every grade has 2i-1 parallel channels, i to indicate grade where channel, and the equivalent diameter in channels at different levels is from the first order to most
Rear stage reduces step by step, finally outlet and lower layer's heat dissipation cold plate at level V channel（4）It is connected；
Fork type top fluid distribution pipe guidance tape（3）Design be to be based on entropy generation minimization method, theiThe equivalent diameter in grade channelD eq,i
WithiThe equivalent diameter in+1 grade of channelD eq,i+1 Meet following formula：
The length Li in i-stage channel meets following formula：
C is the constant more than 1 in formula, is adjusted according to structural requirement.
2. a kind of heat management system of novel on-vehicle lithium ion battery according to claim 1, which is characterized in that described point
Distribution pipes cover board（2）, fork type top fluid distribution pipe guidance tape（3）And heat dissipation cold plate（4）It is all made of high conductivity material.
3. a kind of heat management system of novel on-vehicle lithium ion battery according to claim 1, which is characterized in that fork type
Top fluid distribution pipe guidance tape（3）In cross-section of pipeline be regular quadrangle.
4. a kind of heat management system of novel on-vehicle lithium ion battery according to claim 1, which is characterized in that in pipeline
The flowing of fluid provides power using water pump, and the electric energy of water pump consumption is provided by batteries of electric automobile itself.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810584328.0A CN108520991B (en) | 2018-06-08 | 2018-06-08 | Novel thermal management system of vehicle-mounted lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810584328.0A CN108520991B (en) | 2018-06-08 | 2018-06-08 | Novel thermal management system of vehicle-mounted lithium ion battery |
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| Publication Number | Publication Date |
|---|---|
| CN108520991A true CN108520991A (en) | 2018-09-11 |
| CN108520991B CN108520991B (en) | 2022-11-18 |
Family
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| CN201810584328.0A Active CN108520991B (en) | 2018-06-08 | 2018-06-08 | Novel thermal management system of vehicle-mounted lithium ion battery |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109301111A (en) * | 2018-09-28 | 2019-02-01 | 张家港市新东鑫机械有限公司 | A kind of new-energy automobile power battery group radiator structure |
| CN109449330A (en) * | 2018-09-21 | 2019-03-08 | 江苏微能电子科技有限公司 | Vehicle-mounted new energy battery pack |
| CN110098445A (en) * | 2019-04-11 | 2019-08-06 | 浙江零跑科技有限公司 | A kind of Embedded heat management device of rectangular cell mould group |
| CN110660944A (en) * | 2019-10-12 | 2020-01-07 | 华南理工大学 | Power battery pack heat dissipation device with heat pipe device and heat dissipation method thereof |
| CN110890494A (en) * | 2019-11-29 | 2020-03-17 | 北斗航天汽车（北京）有限公司 | Battery module and battery box with liquid cooling device |
| WO2023005462A1 (en) * | 2021-07-30 | 2023-02-02 | 宁德时代新能源科技股份有限公司 | Battery and electrical apparatus |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449330A (en) * | 2018-09-21 | 2019-03-08 | 江苏微能电子科技有限公司 | Vehicle-mounted new energy battery pack |
| CN109301111A (en) * | 2018-09-28 | 2019-02-01 | 张家港市新东鑫机械有限公司 | A kind of new-energy automobile power battery group radiator structure |
| CN109301111B (en) * | 2018-09-28 | 2023-09-08 | 新东鑫(江苏)机械科技有限公司 | New energy automobile power battery pack heat radiation structure |
| CN110098445A (en) * | 2019-04-11 | 2019-08-06 | 浙江零跑科技有限公司 | A kind of Embedded heat management device of rectangular cell mould group |
| CN110660944A (en) * | 2019-10-12 | 2020-01-07 | 华南理工大学 | Power battery pack heat dissipation device with heat pipe device and heat dissipation method thereof |
| CN110660944B (en) * | 2019-10-12 | 2023-06-20 | 华南理工大学 | Power battery pack heat dissipation device with heat pipe device and heat dissipation method thereof |
| CN110890494A (en) * | 2019-11-29 | 2020-03-17 | 北斗航天汽车（北京）有限公司 | Battery module and battery box with liquid cooling device |
| CN110890494B (en) * | 2019-11-29 | 2022-07-22 | 北斗航天汽车（北京）有限公司 | Battery module and battery box with liquid cooling device |
| WO2023005462A1 (en) * | 2021-07-30 | 2023-02-02 | 宁德时代新能源科技股份有限公司 | Battery and electrical apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108520991B (en) | 2022-11-18 |
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