CN112234274A - Cylindrical lithium ion battery thermal management system based on composite bionic structure - Google Patents
Cylindrical lithium ion battery thermal management system based on composite bionic structure Download PDFInfo
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- CN112234274A CN112234274A CN202011038139.7A CN202011038139A CN112234274A CN 112234274 A CN112234274 A CN 112234274A CN 202011038139 A CN202011038139 A CN 202011038139A CN 112234274 A CN112234274 A CN 112234274A
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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
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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
- H01M10/05—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
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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
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
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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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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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
- H01M10/63—Control systems
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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
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/643—Cylindrical cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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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
- H01M10/65—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
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a cylindrical lithium ion battery thermal management system based on a composite bionic structure, which comprises a battery module, wherein the battery module comprises a cylindrical battery, a cooling plate and a hollow heat conduction column, a circular through hole is processed on the surface of the cooling plate according to a honeycomb structure, the cross section of the circular through hole is the same as that of the cylindrical battery, the cooling plate is sleeved on the cylindrical battery through the circular through hole, a bionic channel is processed in the cooling plate according to a spider-like net shape and a honeycomb structure, and a phase change material is filled in the hollow heat conduction column. According to the invention, liquid cooling and phase change heat storage are combined, when the local temperature of the battery is higher than the melting temperature of the battery, phase change heat absorption is generated, and the overall temperature distribution of the battery module is automatically adjusted; the cooling effect is good, the temperature is uniformly distributed, and the modular design makes the lithium ion battery pack more suitable for being applied to large lithium ion battery packs.
Description
Technical Field
The invention relates to a power battery thermal management technology, in particular to a cylindrical lithium ion battery thermal management system based on a composite bionic structure.
Background
With the prosperity of artificial intelligence and the internet of things, electric vehicles have shown great market potential, and lithium batteries are widely used as main power sources of electric vehicles due to excellent performances of high energy density, long cycle life, low self-discharge, no memory effect and the like. In order to ensure the effective and safe use of the battery, there are still some problems to be overcome, such as unbalanced operation, gradual aging effect, and narrow operating temperature range, in which the temperature of the battery has a great influence on the operation performance, and it is suggested to maintain the temperature between 298K and 313K, however, during the operation of the battery, a large amount of heat is generated by polarization reaction and chemical reaction, and if the heat cannot be dissipated in time, the temperature of the battery will rise sharply; in addition, the temperature difference of the battery cells should be kept within 5K because the difference between the service lives of different batteries in the battery pack is aggravated by the severe temperature distribution unevenness. Therefore, it is critical to develop efficient and rational battery thermal management systems to ensure efficient and safe use of lithium batteries.
The heat management of the power battery aims to timely process the heat of the battery and control the temperature of the battery within a safe range, and the conventional heat management method mainly comprises air cooling, liquid cooling and phase-change material heat storage, wherein the cooling efficiency of the liquid cooling is high, and the phase-change material heat storage is passive cooling and does not need energy source driving. When the electric equipment runs, the power of the electric equipment is changeable, and when the liquid cooling is actively cooled, if the liquid cooling is kept constant, when the cooling rate is smaller than the heat generation rate of the battery, the temperature rise of the battery is overlarge; when the cooling rate is greater than the heat generation rate, the waste of energy can be caused, if the flow rate of liquid cooling changes along with the difference of power, can cause the impact to the water pipe, increases the possibility of leaking.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the problems, the invention aims to provide a thermal management system of a cylindrical lithium ion battery based on a composite bionic structure, which is automatically adjusted and has a good heat dissipation effect and integrates liquid cooling and phase-change material heat storage.
The technical scheme is as follows: the invention relates to a cylindrical lithium ion battery thermal management system based on a composite bionic structure, which comprises a battery module, wherein the battery module comprises a cylindrical battery, a cooling plate and a hollow heat-conducting column, the surface of the cooling plate is provided with circular through holes according to a honeycomb structure, the cross section of each circular through hole is the same as that of the cylindrical battery, the number of the circular through holes is not less than that of the cylindrical batteries, the cylindrical batteries are embedded and fixed, the cooling plate is sleeved on the cylindrical batteries through the circular through holes, bionic channels are arranged in the cooling plate according to the shape of an araneoid net and the shape of the honeycomb structure, the bionic channels are uniformly distributed around the circular through holes, cooling liquid is used for uniformly cooling the battery module through the bionic channels, phase-change materials are filled in the hollow heat-conducting column, and when the local temperature of the battery module is higher than the, the overall temperature distribution of the battery module is automatically adjusted.
The battery thermal management system further comprises a water tank, a water pump, a temperature control module and a water pipe, one end of the water pump is connected with the water tank, the other end of the water pump is connected with the temperature control module, the other end of the temperature control module is connected with the battery module through a water inlet pipe, the other end of the battery module is connected with the water tank through a water outlet pipe, cooling liquid flows out of the water tank under the driving of the water pump and enters the battery module through the temperature control module, after a large amount of heat generated by the battery module in work is taken away, the cooling liquid returns to the water tank to form a circulating system, and the temperature control module is connected.
The shell of the hollow heat-conducting column is an aluminum shell, the arc-shaped contact surface of the aluminum shell is in contact with the surface of the cylindrical battery, and the upper end surface and the lower end surface of the hollow heat-conducting column are in contact with the cooling plate, so that the cylindrical battery can quickly exchange heat with the cooling liquid.
The quantity of cooling plate is 1 ~ 3, and evenly distributed in the battery axis direction, when cooling plate quantity is greater than 1, uses water piping connection between the cooling plate, makes the coolant liquid flow evenly in the cooling plate of difference.
The shape of the cooling plate is one of rectangle, hexagon, rhombus to adapt to multiple battery package installation occasion.
When the cooling plate is hexagonal, the peripheral water pipe joints are one of 2, 3 and 6 and are uniformly distributed, the water pipe joints are outlets or inlets, and when the water pipe joints are outlets, cooling liquid flows in from the center of the cooling plate; the inlet is the cooling liquid which flows out from the center of the cooling plate.
The cylindrical batteries are 18650 type cylindrical lithium ion batteries and are arranged in an equidistant honeycomb shape.
The cross section of the bionic channel in the flowing direction of the cooling liquid is rectangular, the height of the bionic channel is 2mm, and the width of the bionic channel is 1-3 mm.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages:
1. liquid cooling and phase change heat storage are combined, when the local temperature of the battery is higher than the melting temperature of the battery, phase change heat absorption is carried out, and the overall temperature distribution of the battery module is automatically adjusted;
2. the cooling effect is good, the temperature is uniformly distributed, and the modular design makes the lithium ion battery pack more suitable for being applied to large lithium ion battery packs.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view and a sectional view A-A of a battery module according to the present invention;
FIG. 3 is a cross-sectional view of a hexagonal cooling plate of the present invention and a cross-sectional view of a prior art rectangular cooling plate;
FIG. 4 is a schematic structural view and a sectional view C-C of a hollow heat-conducting column according to the present invention;
FIG. 5 is a graph showing the temperature and the phase change material liquid phase ratio of the hexagonal cooling plate and the rectangular cooling plate at different flow rates;
fig. 6 is a schematic view of a battery module with different numbers of cooling plates;
fig. 7 is a graph showing the influence of the number of cooling plates on the temperature variation of a battery module;
FIG. 8 is a schematic view of the number of different cooling plate peripheral channel configurations and coolant flow direction;
fig. 9 is a view showing the influence of the number of the structure of the peripheral channels of the cooling plate and the flow direction of the cooling fluid on the temperature change of the battery module;
fig. 10 shows the effect of the bionic channel width on the temperature and pressure difference change of the battery module.
Detailed Description
Example 1
This embodiment a cylinder lithium ion battery thermal management system based on compound bionic structure, including water tank 7, water pump 6, accuse temperature module 5, battery module 1 and water pipe, as shown in fig. 1. Wherein, the coolant liquid is driven by water pump 6, gets into every battery module 1 in the battery package by inlet tube 4 after controlling temperature module 5 from water tank 7, takes away after the large amount of heat in the battery module 1, returns water tank 7 through outlet pipe 9 and forms the circulation system. The temperature control module 5 is connected with an air conditioner to adjust the temperature of the cooling liquid, and the battery control unit 8 is connected with the battery through the electric wire bundle 2.
Each battery module 1 includes 32 cylindrical batteries 11, two cooling plates 10, and 18 hollow heat-conducting columns 12, as shown in fig. 2, wherein the right drawing in fig. 2 is a cross-sectional view taken along a-a plane in the left drawing, the hexagonal cooling plate 10 is processed with 32 circular through holes based on a honeycomb structure for embedding the cylindrical batteries 11, and each cylindrical battery 11 is connected with each other by a nickel plate 3. The inside processing based on class spider web and honeycomb of cooling plate 10 has bionical passageway, leads to water piping connection between two cooling plates 10, and the coolant liquid is through bionical passageway and evenly cool off battery module 1, as shown in fig. 3.
The hollow heat conducting column 12 comprises an aluminum shell 15, an ABS (acrylonitrile butadiene styrene) seal 17 and a phase change material 16, as shown in FIG. 4, wherein the middle drawing is a top view along the direction B, the right drawing is a cross-sectional view along the plane C-C, the phase change material 16 is filled in the hollow heat conducting column 12, and when the local temperature of the battery is higher than the melting temperature of the phase change material 16, phase change heat absorption occurs, and the overall temperature distribution of the battery module 1 is automatically adjusted. The arc-shaped contact surface 14 of the aluminum housing 15 contacts the surface of the cylindrical battery 11, and the upper and lower end surfaces contact the cooling plate 10, so that the battery rapidly exchanges heat with the cooling liquid and the phase change material 16. The hexagonal cooling plate makes the temperature distribution of the battery module 1 during operation more uniform than that of the conventional rectangular honeycomb cooling plate 13. The method adopts 16% of glycol solution as a coolant and polyethylene glycol as a phase-change material 16, utilizes software simulation, and when the battery module 1 discharges at 4C and the sizes of bionic channels are all 2 x 2mm, the temperature and the liquid fraction of the phase-change material 16 of hexagonal and rectangular cooling plates at different flow rates change with time as shown in figure 5. The variation curves of the maximum temperature, the temperature difference and the liquid fraction gradually increase with the increase of the discharge time. After discharge for 810s, the maximum temperature and liquidus rate decreased with increasing flow rate, and the temperature difference was reversed. When the hexagonal cooling plate is compared with the rectangular cooling plate, when the inlet flow is 0.001kg/s, the maximum temperature and the temperature difference of the rectangular cooling plate scheme are respectively 0.36K and 2.3K larger than those of a hexagon, meanwhile, the liquid phase ratio of the phase-change material 16 of the hexagonal cooling plate scheme is 0.07 larger than that of the rectangle, the hexagonal cooling plate scheme has a better cooling effect, and the utilization ratio of the phase-change material 16 is higher.
Example 2
The number of the cooling plates 10 in the battery module 1 is one, two or three, and is uniformly distributed in the axial direction of the cylindrical batteries 11, as shown in fig. 6. The size of the hollow heat-conducting columns 12 needs to be adjusted according to the number of the cooling plates 10. When the number of the cooling plates 10 is more than one, the different plates are connected by water pipes, so that the cooling liquid flows uniformly in the different plates. By using software simulation, when the battery module 1 is discharged at 4C, the sizes of the bionic channels are all 2 × 2mm, and the inlet flow rate is 0.001kg/s, the temperature change of the battery module 1 due to the number of different cooling plates 10 is as shown in fig. 7. After discharging for 810s, the highest temperature of the battery module 1 with one cooling plate is 310.78K, which is 1.12K and 1.23K greater than that of the two and three cooling plates respectively; in the aspect of temperature difference, the temperature difference of one cooling plate battery module 1 is 3.70K, and is increased by 0.35K and 0.54K compared with two or three cooling plates, and the highest temperature and the temperature difference of one cooling plate battery module 1 are in the reasonable use range of the battery. In view of the complicated processing of the cooling plates 10 and the need for pipe connections between the plurality of cooling plates 10, a cooling plate battery module 1 is preferably used in order to save manufacturing costs and simplify piping.
Example 3
The pipe joints on the periphery of the hexagonal cooling plate 10 are uniformly distributed by 2, 3, or 6. When the peripheral interface of the cooling plate 10 is an outlet, the cooling liquid flows in from the center of the cooling plate 10; alternatively, when the peripheral port is an inlet port, the coolant flows out from the center of the cooling plate 10, as shown in fig. 8. By using software simulation, when the battery module 1 discharges at 4C, the sizes of the bionic channels are all 2 × 2mm, and the inlet flow rate is 0.001kg/s, the temperature change of the battery module 1 due to the different peripheral interface numbers and the flowing direction of the cooling liquid is as shown in fig. 9. The six schemes have little influence on the highest temperature of the battery, and the phase difference is within 0.21K. Comparing the effect of the two flow-direction schemes on the temperature difference, it was found that the temperature difference for the intermediate flow-in scheme was significantly less than for the intermediate flow-out scheme. In addition, when the middle inflow scheme is adopted, the scheme that after discharging for 810s, the number of peripheral interfaces is 2 is only 0.06K larger than that of the 6-interface scheme. In order to simplify the piping, it is preferable to adopt a scheme in which 2 pipe joints around the hexagonal cooling plate and the coolant flow in between.
Example 4
The height of the bionic channel in the hexagonal cooling plate 10 is 2mm, and the width w1And w2Ranging from 1mm to 3mm as shown in FIG. 3. By using software simulation, when the battery module 1 is discharged at 4C and the inlet flow rate is 0.001kg/s, the influence of different bionic channel widths on the temperature and pressure difference change of the battery module 1 after discharging for 810s is shown in fig. 10. As the width of the channel increases, the maximum temperature of the battery module 1 gradually increases, the temperature difference decreases and then increases, and the pressure difference between the inlet and the outlet gradually decreases. Comprehensively considering the temperature characteristics and the voltage difference of the battery module 1 when w1＝w2When the thickness is 2.5mm, the cooling efficiency of the battery thermal management system is highest.
Example 5
The present embodiment has the same effect of heat dissipation for cylindrical power battery packs, and the 18650 type cylindrical battery 11 in the present embodiment has the same effect when the cylindrical battery is a model 26650, 21700, 32650 cylindrical battery. Meanwhile, the invention is also applicable when the distribution spacing and arrangement mode of the batteries are changed.
Claims (7)
1. The utility model provides a cylinder lithium ion battery thermal management system based on compound bionic structure, a serial communication port, including battery module (1), battery module (1) includes cylinder battery (11), cooling plate (10) and hollow heat conduction post (12), the circular through-hole of honeycomb processing is followed on cooling plate (10) surface, circular through-hole cross section is the same with the cross section of cylinder battery (11), and cooling plate (10) are overlapped on cylinder battery (11) through circular through-hole, the bionic passageway of cooling plate (10) inside processing according to class spider web shape and honeycomb, phase change material (16) are filled to hollow heat conduction post (12) inside.
2. The battery thermal management system according to claim 1, further comprising a water tank (7), a water pump (6) and a temperature control module (5), wherein one end of the water pump (6) is connected with the water tank (7), the other end of the water pump (6) is connected with the temperature control module (5), the other end of the temperature control module (5) is connected with the battery module (1) through a water inlet pipe (4), the other end of the battery module (1) is connected with the water tank (7) through a water outlet pipe (9), and the temperature control module (5) is connected with a refrigerator.
3. The battery thermal management system according to claim 1, wherein the outer shell of the hollow heat conducting column (12) is an aluminum outer shell (15), the arc-shaped contact surface (14) of the aluminum outer shell (15) is in contact with the surface of the cylindrical battery (11), and the upper end surface and the lower end surface are in contact with the cooling plate (10).
4. The battery thermal management system according to claim 1, wherein the number of the cooling plates (10) is 1-3, the cooling plates are uniformly distributed in the axis direction of the battery, and when the number of the cooling plates (10) is more than 1, the cooling plates (10) are connected through a water pipe.
5. The battery thermal management system of claim 4, wherein the cooling plate (10) is one of rectangular, hexagonal, and diamond in shape.
6. The battery thermal management system according to claim 5, wherein when the cooling plate (10) is hexagonal, the peripheral water pipe joints are uniformly distributed and are one of 2, 3 and 6, and the water pipe joints are arranged at the inner corners of the hexagon.
7. The battery thermal management system according to claim 1, wherein the cylindrical cells (11) are 18650 cylindrical lithium ion cells arranged in an equidistant honeycomb pattern.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113226000A (en) * | 2021-05-21 | 2021-08-06 | 山东大学深圳研究院 | Bionic structure flexible heat dissipation device and method and heat dissipation system |
| CN113823859A (en) * | 2021-08-28 | 2021-12-21 | 西北工业大学 | Underwater vehicle battery module cooling system capable of self-adapting to navigational speed |
| CN114566734A (en) * | 2022-01-26 | 2022-05-31 | 合肥工业大学 | Lithium battery pack stability maintaining device based on feedback system and water cooling condition |
| CN114614141A (en) * | 2022-02-24 | 2022-06-10 | 智己汽车科技有限公司 | Battery hybrid heat exchange device and battery pack |
| CN114639866A (en) * | 2022-03-10 | 2022-06-17 | 武汉理工大学 | Lithium ion battery thermal management device based on composite phase change material and liquid cooling |
| CN114824568A (en) * | 2022-05-17 | 2022-07-29 | 江苏大学 | Bionic runner structure liquid cooling plate for lithium ion battery pack |
| CN115020877A (en) * | 2022-08-09 | 2022-09-06 | 时代广汽动力电池有限公司 | Preparation process of new energy battery for improving energy storage capacity |
| CN115483482A (en) * | 2022-10-18 | 2022-12-16 | 西安交通大学 | Curling type liquid cooling battery thermal management system |
| CN116093489A (en) * | 2023-01-05 | 2023-05-09 | 三峡大学 | Composite battery thermal management system with hexagonal structure |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113226000B (en) * | 2021-05-21 | 2022-07-26 | 山东大学深圳研究院 | Bionic structure flexible heat dissipation device and method and heat dissipation system |
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| CN113823859B (en) * | 2021-08-28 | 2024-02-02 | 西北工业大学 | Underwater vehicle battery module cooling system with self-adaptive navigational speed |
| CN113823859A (en) * | 2021-08-28 | 2021-12-21 | 西北工业大学 | Underwater vehicle battery module cooling system capable of self-adapting to navigational speed |
| CN114566734A (en) * | 2022-01-26 | 2022-05-31 | 合肥工业大学 | Lithium battery pack stability maintaining device based on feedback system and water cooling condition |
| CN114614141A (en) * | 2022-02-24 | 2022-06-10 | 智己汽车科技有限公司 | Battery hybrid heat exchange device and battery pack |
| CN114614141B (en) * | 2022-02-24 | 2024-03-19 | 智己汽车科技有限公司 | Battery hybrid heat exchange device and battery pack |
| CN114639866A (en) * | 2022-03-10 | 2022-06-17 | 武汉理工大学 | Lithium ion battery thermal management device based on composite phase change material and liquid cooling |
| CN114824568A (en) * | 2022-05-17 | 2022-07-29 | 江苏大学 | Bionic runner structure liquid cooling plate for lithium ion battery pack |
| CN115020877B (en) * | 2022-08-09 | 2022-11-18 | 时代广汽动力电池有限公司 | Preparation process of new energy battery for improving energy storage capacity |
| CN115020877A (en) * | 2022-08-09 | 2022-09-06 | 时代广汽动力电池有限公司 | Preparation process of new energy battery for improving energy storage capacity |
| CN115483482A (en) * | 2022-10-18 | 2022-12-16 | 西安交通大学 | Curling type liquid cooling battery thermal management system |
| CN116093489A (en) * | 2023-01-05 | 2023-05-09 | 三峡大学 | Composite battery thermal management system with hexagonal structure |
| CN116093489B (en) * | 2023-01-05 | 2023-10-27 | 三峡大学 | Composite battery thermal management system with hexagonal structure |
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