CN115714217A - Laminated power battery thermal management system based on heat transfer of positive current collector - Google Patents
Laminated power battery thermal management system based on heat transfer of positive current collector Download PDFInfo
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- CN115714217A CN115714217A CN202211272492.0A CN202211272492A CN115714217A CN 115714217 A CN115714217 A CN 115714217A CN 202211272492 A CN202211272492 A CN 202211272492A CN 115714217 A CN115714217 A CN 115714217A
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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 laminated power battery heat management system based on heat transfer of a positive current collector, which comprises a lead-out current collector type laminated lithium ion battery, a heat conducting plate and a heat exchange system, wherein the lead-out current collector type laminated lithium ion battery comprises a battery shell, a positive pole column, a negative pole column and a positive current collector sheet, which are arranged at the upper end of the battery shell, the positive current collector sheet extends out of the left side, the right side and the lower end of the battery shell, the heat conducting plate is jointed with the positive current collector sheet positioned on the outer side part of the battery shell for heat exchange, and the heat exchange system is used for changing the temperature of heat conducting fluid in the heat conducting plate and driving the heat conducting fluid to circulate in an embedded micro flow channel. The positive current collector aluminum foil of the battery inner cell is led out to the outside of the battery and tightly attached to the heat conducting plate, and a direct heat transfer passage inside and outside the battery is established, so that the laminated cell can directly carry out efficient heat exchange with heat conducting fluid, the fast and efficient heat management is realized, the operation cycle performance of the battery is improved, and the cycle life of the battery is prolonged.
Description
Technical Field
The invention relates to thermal management of a power lithium ion battery, in particular to a laminated power battery thermal management system based on heat transfer of a positive current collector.
Background
Compared with other rechargeable batteries, the lithium ion battery has become an energy supply core component of mobile phones, notebook computers, electric automobiles and energy storage systems due to the advantages of high energy density, high power density, low self-discharge rate, long service life, environmental friendliness and the like. However, during the charging and discharging of the lithium ion battery, a large amount of heat is generated due to the unavoidable electrochemical reaction and ohmic resistance inside the battery, and particularly, the battery temperature greatly increases when a large-capacity square lithium ion battery is discharged at a large rate. The physical and chemical properties of lithium ion batteries, such as thermal safety, charge-discharge cycle performance and service life, are affected by their operating temperature. If the battery temperature is too high (more than 60 ℃) or too low (less than 0 ℃), the reliability and service life of the lithium battery may be deteriorated. The optimum working temperature of the lithium battery proposed at present is 20-40 ℃, and the maximum temperature difference of the battery is kept within 5 ℃. Therefore, a reliable, efficient and safe battery thermal management system must be designed to control the operating temperature of the lithium battery within an optimal range.
Currently, conventional thermal management methods include air cooling, liquid cooling, heat pipe and phase change material cooling, and combinations thereof. The methods have advantages and disadvantages, and if the factors such as the heat management efficiency, the heat management cost, the space utilization rate and the like of the battery are comprehensively considered, the liquid cooling heat management scheme is the best choice. For example, chinese patents with application numbers CN201911206635.6 and CN202010923480.4 in the prior art both disclose technical solutions for cooling a liquid cooling plate and a liquid cooling pipeline arranged outside a square lithium ion battery. Although all the lithium ion batteries have a certain heat dissipation effect, the liquid cooling heat management methods of the lithium ion batteries are all directed to heat management outside the batteries. However, the efficiency of the external thermal management of the battery is low, which is because the battery case and the electrolyte are blocked, the battery core inside the battery cannot be cooled and heated more efficiently, and a large temperature difference exists between the battery core inside the battery and the outside, so that the temperature of the battery cannot be controlled effectively.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects, the invention provides a laminated power battery heat management system for efficiently controlling the battery temperature and based on heat transfer of a positive current collector.
The technical scheme is as follows: in order to solve the problems, the invention provides a laminated power battery thermal management system based on heat transfer of a positive current collector, which comprises a lead-out current collector type laminated lithium ion battery, a heat conducting plate and a heat exchange system, wherein the lead-out current collector type laminated lithium ion battery comprises a battery shell, a positive pole, a negative pole and a positive current collector, the positive pole and the negative pole are arranged at the upper end of the battery shell, the positive current collector is arranged in the battery shell and extends out of the left side, the right side and the lower end of the battery shell, the heat conducting plate is attached to the positive current collector positioned on the outer side part of the battery shell, the heat conducting plate exchanges heat with the positive current collector, an embedded micro flow channel for flowing of heat conducting fluid is embedded in the heat conducting plate, and the heat exchange system is used for changing the temperature of the heat conducting fluid and driving the heat conducting fluid to circulate in the embedded micro flow channel.
Further, the heat exchange system comprises an external conduit, an external radiator, a driving water pump and an external heater, the external conduit is communicated with the embedded micro-channel of the heat conduction plate, the external radiator, the external heater and the driving water pump to realize circulation of the heat conduction fluid, the external radiator is used for heat exchange of the heat conduction fluid, the external heater is used for heating the heat conduction fluid, and the heat exchange system is provided with a control valve to control circulation of the heat conduction fluid in the external radiator or the external heater.
Furthermore, the lead-out current collector type laminated lithium ion battery further comprises laminated battery core active substances and electrolyte, the laminated battery core active substances and the electrolyte are arranged in a battery shell, the laminated battery core active substances and the positive current collector piece are sequentially overlapped to form a battery core, and the electrolyte covers the laminated battery core active substances and the positive current collector piece located inside the battery shell.
Furthermore, the heat conduction plate is located between the positive current collector pieces, the thickness of the heat conduction plate is the same as that of the active material of the laminated cell, and the heat conduction plate covers the positive current collector pieces on the outer side portion of the battery shell to form a U shape.
Furthermore, the heat-conducting plate is provided with a left embedded micro-channel and a right embedded micro-channel, outlets of the two embedded micro-channels are respectively arranged at the upper ends of the two sides, and inlets of the two embedded micro-channels are positioned in the middle of the lower end of the battery shell and are connected with the inlet confluence channel. The heat-conducting plate and the battery shell are both made of aluminum materials.
Furthermore, the inlet converging channel is respectively connected with an external radiator and an external heater through an external conduit, and liquid inlets of the external radiator and the external heater are respectively provided with a liquid-cooling control valve and a heat flow control valve.
Furthermore, the external conduit is hermetically connected with the driving water pump, the heat conducting plate, the external radiator and the external heater in a glue sealing mode.
Has the beneficial effects that: compared with the prior art, the laminated battery has the remarkable advantages that the aluminum foil of the positive current collector of the battery cell in the battery is led out to the outside of the battery and is tightly attached to the heat conducting plate, a direct heat conducting channel between the inside and the outside of the battery is established, the defect of low heat conductivity coefficient of a battery shell and electrolyte for heat conduction between the inside and the outside of the battery is overcome, the laminated battery cell can directly carry out efficient heat exchange with heat conducting fluid, the heat conducting efficiency between the inside and the outside of the battery and the uniformity of the overall temperature of the battery are remarkably improved, the rapid and efficient heat management is realized, the highest temperature and the maximum temperature difference of the battery can be controlled in the optimal range in a short time, the operation cycle performance of the battery is improved, and the cycle life of the battery is prolonged.
The heat management device of the positive current collector piece and the embedded liquid flow micro-channel which are led out is integrally designed in a laminating mode, so that the whole structure is more compact, the space utilization rate is further improved, and the assembly and integration of the battery module and the battery pack meet the modular requirement.
Drawings
FIG. 1 is a schematic view of a management system according to the present invention;
FIG. 2 is a three-dimensional view of a laminated lithium battery of the present invention;
fig. 3 is an exploded view of a laminated lithium battery of the present invention;
fig. 4 is a schematic view of the overall structure of a laminated lithium battery according to the present invention;
FIG. 5 is a schematic view of the structure of an embedded micro flow channel according to the present invention;
FIG. 6 is a schematic structural view of an embedded micro-channel heat-conducting plate integrated device according to the present invention;
FIG. 7 is a diagram showing a structure of the size of an embedded micro flow channel according to the present invention;
fig. 8 is a sectional view showing an assembled structure of a laminated lithium battery and an integrated device according to the present invention;
fig. 9 is a schematic view showing the cooling effect of the laminated lithium battery of the present invention;
FIG. 10 is a schematic view of the cooling effect of natural heat dissipation of a prior art battery;
FIG. 11 is a graph comparing the maximum temperature of natural heat dissipation for a laminated lithium battery of the present invention with a prior art battery;
fig. 12 is a graph comparing the overall temperature of the laminated lithium battery with the temperature difference between the internal cells according to the present invention;
FIG. 13 is a schematic diagram of the temperature rise effect of the laminated lithium battery of the present invention;
fig. 14 is a schematic diagram of the battery temperature rise effect when a micro-channel heat-conducting plate integrated device is arranged outside the laminated lithium battery but a positive current collector is not led out;
fig. 15 is a graph comparing the average cell temperature with and without the current collector being drawn.
Detailed Description
As shown in fig. 1, the laminated power battery thermal management system based on heat transfer of the positive electrode current collector in this embodiment includes a lead-out current collector laminated lithium ion battery 100, an embedded micro-channel heat conduction plate integrated device 200, an external water pipe 300, a driving water pump 400, an external heat sink 500, an external heater 600, a liquid cooling control valve 700, and a heat flow control valve 800. External water outlets are formed at the left and right ends of the embedded micro-channel heat-conducting plate integrated device 200 and are connected with the driving water pump 400, the external radiator 500 and the external heater 600 through the external water pipe 300. The external liquid flow pipeline is divided into 2 paths, wherein the liquid and cold flow pipeline comprises an external radiator 500 and a liquid and cold control valve 700; in addition, the heated fluid line includes an external heater 600 and a heat flow control valve 800. When the battery is in a high-temperature state and heat dissipation is needed, the heat flow control valve 800 is closed, the liquid cooling control valve 700 is opened, and fluid flows into the embedded micro-channel heat conduction plate integrated device 200 after being cooled by the external radiator 500 to cool the lead-out current collector type laminated lithium ion battery 100. When the battery is in a low-temperature environment and needs to be preheated, the liquid-cooling control valve 700 is closed, the heat flow control valve 800 is opened, and fluid flows into the embedded micro-channel heat-conducting plate integrated device 200 after being heated by the external heater 500 to heat the lead-out current collector type laminated lithium ion battery 100.
The heat management system establishes a high-efficiency heat exchange channel between the battery core inside the battery and the external environment of the battery by utilizing the extension of the high-thermal-conductivity metal anode current collector, and performs uniform and high-efficiency heat exchange with the current collector positioned on the outer side part of the battery shell through the heat-conducting fluid in the embedded micro-channel heat-conducting plate integrated device 200. In addition, the heat transfer fluid is circularly heated and cooled by the cooperation of the external water pipe 300, the driving water pump 400, the external radiator 500, the external heater 600, the liquid cooling control valve 700 and the heat flow control valve 800. The pipeline liquid flow and the outer current collector of leading through outside embedding heat-conducting plate carry out contact heat-conduction, realize the cooling and the intensification to the inside lamination formula electricity core of battery, improve the temperature characteristic of high-power battery when high-rate charge-discharge operating mode for the performance and the cycle life of battery obtain showing and improve.
In the actual use and operation process, when the lead-out current collector type laminated lithium ion battery 100 is in high-rate discharge operation, the power for driving the water pump 400 can be increased, so that the inlet and outlet flow is increased, and the temperature of the battery can be ensured to be in the optimal range; in contrast, when the lead-out collector type laminated lithium ion battery 100 operates in a low-rate discharge mode, the power for driving the water pump 400 can be appropriately reduced to reduce the power consumption. In addition, the cooling rate and the heating heat generation amount can be changed by adjusting the input power of the external radiator 500 and the external heater 600, or the flow of the cooling and heating fluid can be adjusted by adjusting the opening and closing degrees of the liquid cooling control valve 700 and the heat flow control valve 800, so as to meet the requirements of cooling, heat dissipation and heating temperature rise of the battery under different working conditions.
As shown in fig. 2 to 4, in the present embodiment, the lead-out collector type laminated lithium square battery 100 includes a positive post 111, a negative post 112, a laminated cell active material 113, a lead-out positive collector sheet 114, an electrolyte layer 115, and an aluminum battery case 116. The aluminum battery case 116 is notched on both the left and right sides and at the bottom so that a portion of the lead-out positive current collector sheet 114 is placed outside the aluminum battery case 116, and the lead-out positive current collector sheet 114 is joined to the notch of the case of the aluminum battery case 116 by welding, preventing leakage of the electrolyte. The positive pole 111 and the negative pole 112 are respectively arranged on the left side and the right side of the top of the battery and are connected with the positive pole ear and the negative pole ear of the laminated battery core 116 in the battery through welding. The electrolyte layer 115 covers the laminated cell active material 113, and infiltrates the laminated cell active material 113 to serve as a carrier for lithium ion transport during the electrochemical reaction of the battery. An aluminum cell case 116 is wrapped around the outside of the electrolyte layer 115.
As shown in fig. 5 and 6, the embedded micro flow channel heat-conducting plate integrated device 200 includes a heat-conducting plate 211, embedded micro flow channels 212, a left-side outlet bus channel 213, a right-side outlet bus channel 214, and an inlet bus channel 215. A heat conductive plate 211 is provided between each two drawn-out positive electrode collector sheets 114, and in the present embodiment, a total of 10 heat conductive plates 211 are provided. The current collector and the heat conducting plate are closely attached through a viscous high-thermal-conductivity heat conducting material (such as heat conducting silicone grease, including but not limited to heat conducting silicone grease) so as to achieve the optimal heat conducting performance. Simultaneously, the high laminating of the integral type of current collector piece and heat-conducting plate has also further improved whole thermal management system's integration degree. The single-inlet and double-outlet embedded micro channels 212 are embedded in the heat conducting plate 211, and 3 embedded micro channels 212 are embedded in the single heat conducting plate 211 and are sequentially arranged in parallel. As shown in fig. 7 and 8, the cross-sectional size of the inner diameter of the embedded micro channels 212 is 1.5mm × 2.0mm, and the total of 60 heat-conducting fluids in the micro channels 212 enter from the inlet bus channel 215 in the middle of the bottom of the battery, and each of 30 micro channels 212 is divided to the left and right sides, flows through the micro channels 212 in the heat-conducting plates 211 on the left and right sides of the battery from bottom to top, and finally flows to the left outlet bus channel 213 and the right outlet bus channel 214 on the left and right sides.
In the actual design and production, the sizes of the heat conducting plate 211 and the embedded micro flow channel 212 can be adjusted according to the size change of the laminated cell active material 113 and the extraction type positive current collector piece 114, so as to ensure that the extraction type positive current collector piece 114 can always perform overall fit type efficient heat exchange with the heat conducting plate 211. The thickness of the heat conducting plate 211 and the size of the embedded micro flow channel 212 can be adjusted according to the actual volume of the lead-out collector type laminated lithium ion battery 100 and the actual operating power. When the volume and the operating power of the lead-out current collector type laminated lithium ion battery 100 are larger, the thickness of the heat conducting plate 211 and the inner diameter size of the embedded micro-channel 212 can be increased according to the corresponding proportion; when the volume and the operation power of the lead-out current collector type laminated lithium ion battery 100 are small, the thickness of the heat conducting plate 211 and the inner diameter of the embedded micro-channel 212 are reduced according to the corresponding proportion. Similarly, the number of the built-in channels of the embedded micro-channels 212 should match the volume and the operating power design of the lead-out current collector type laminated lithium ion battery 100, and when the lead-out current collector type laminated lithium ion battery 100 is designed to be under a high-power and high-rate working condition, the number of the built-in channels can be increased proportionally. The heat conducting plate 211 may be made of the same aluminum material as the aluminum battery case 116, or may be made of a material different from the aluminum battery case 116, and the specific material is selected according to the processing technology, heat conducting property, and production cost.
Feasibility verification is carried out on the novel laminated square lithium ion battery thermal management liquid flow cooling scheme based on heat transfer of the positive current collector by a computer numerical simulation method, and parameter conditions of a simulation model are set as follows: the discharge multiplying power of the battery is 1C, 1.5C and 2C; the overall initial temperature of the lead-out current collector type laminated lithium ion battery 100 is 298.15K; the liquid cooling fluid is set to be water, and the initial inlet temperature of the liquid cooling fluid is 298.15K; the volume flow of the inlet of the liquid cooling fluid in the embedded micro-channel 212 is 3 x 10-4m3/s.
As shown in fig. 9 and 10, the model simulation results show that, at an initial temperature of 298.15K, the temperature of the lead-out current collector type laminated lithium ion battery 100 is about 23K lower after cooling for the same time as compared with the overall temperature distribution of the natural heat dissipation battery, and the overall temperature cloud graph of the lead-out current collector type laminated lithium ion battery 100 is subjected to the circulation cooling of 298.15K liquid flow for 1800s under the working condition of 2C discharge rate.
As shown in fig. 11, when the cooling scheme is used for cooling the batteries under different discharge rate (1C, 1.5C, 2C) working conditions, the maximum temperatures Tmax of the batteries are 200.58K, 303.25K and 303.82K, which are respectively reduced by 10.57K, 17.23K and 19.13K compared with a natural heat dissipation manner; as shown in fig. 12, the temperature difference Δ T between the entire battery and the core was controlled to be within 5K, i.e., 0.63K, 3.88K, and 4.89K, respectively.
Feasibility verification is carried out on the liquid flow heating scheme of the novel laminated square lithium ion battery heat management based on the heat transfer of the positive current collector by a computer numerical simulation method, and parameter conditions of a simulation model are set as follows: the external initial ambient temperature was set to 273.15K; the battery is set to be in a static state; the overall initial temperature of the lead-out current collector type laminated lithium ion battery 100 is 273.15K; the liquid cooling fluid is set to be water, and the initial inlet temperature of the liquid cooling fluid is 313.15K; the volume flow of the inlet of the liquid cooling fluid in the embedded micro-channel 212 is 3 x 10-4m3/s.
As shown in fig. 13 and 14, the model simulation results show that, at an initial temperature of 273.15K, the overall temperature cloud of the extracted current collector type laminated lithium ion battery 100 after being heated for 100s by 313.15K high-temperature water circulation shows that, compared with the overall temperature distribution of the battery without extracted current collector heating, the temperature of the extracted current collector type laminated lithium ion battery 100 after being heated for the same time is 3K higher than that of the extracted current collector type laminated lithium ion battery 100, and the overall heating uniformity of the extracted current collector type laminated lithium ion battery 100 is better.
As shown in fig. 15, comparing the variation of the average temperature of the battery with the heating scheme of the lead-out current collector and without the heating of the lead-out current collector, it can be found that after the lead-out current collector type laminated lithium ion battery 100 is continuously heated for 58s in a 313.15K high-temperature water cycle, the average temperature of the whole battery can reach the target temperature 298.15K; compared with the conventional side heating scheme without leading out a current collector battery, the scheme needs 89s, the time for heating to reach the target temperature of 298.15K is shortened by 31s, and the heating rate is improved by 34.83%.
Claims (9)
1. The utility model provides a lamination formula power battery thermal management system based on heat transfer of anodal mass flow body, a serial communication port, including drawing forth current collector formula lamination lithium ion battery (100), heat-conducting plate (200) and heat exchange system, draw forth current collector formula lamination lithium ion battery (100) including battery case (115), positive post (111), negative pole post (112), positive current collector piece (114), battery case (115) upper end sets up positive post (111) and negative pole post (112), set up positive pole piece mass flow (114) in battery case (115), and positive current collector piece (114) extend battery case's left side, right side and lower extreme, heat-conducting plate (200) and the laminating of positive current collector piece (114) that is located the battery case outside portion, heat-conducting plate (200) carry out the heat exchange with positive current collector piece (114), embedded microchannel (212) that are used for the heat-conducting fluid to flow are embedded in heat-conducting plate (211), heat exchange system is used for changing the heat-conducting fluid temperature and drives the heat-conducting fluid and circulate in microchannel (212).
2. The laminated power battery thermal management system based on positive electrode current collector heat transfer is characterized in that the heat exchange system comprises an external conduit (300), an external radiator (500), a driving water pump (400) and an external heater (600), the external conduit (300) is communicated with the embedded micro-channel (212) of the heat conducting plate (211), the external radiator (500), the external heater (600) and the driving water pump (400) to realize the circulation of heat conducting fluid, the external radiator (500) is used for heat exchange of the heat conducting fluid, the external heater (600) is used for heating the heat conducting fluid, and the heat exchange system is provided with a control valve for controlling the circulation of the heat conducting fluid in the external radiator (500) or the external heater (600).
3. The laminated power battery thermal management system based on positive current collector heat transfer of claim 1, wherein the extraction current collector laminated lithium ion battery (100) further comprises laminated cell active materials (113) and electrolyte (115), the laminated cell active materials (113) and the electrolyte (115) are arranged in a battery housing (115), the laminated cell active materials (113) and the positive current collector sheet (114) are sequentially stacked to form a cell, and the electrolyte (115) covers the laminated cell active materials (113) and the positive current collector sheet (114) inside the battery housing (115).
4. The laminated power battery thermal management system based on positive electrode current collector heat transfer as claimed in claim 3, characterized in that the thermal conductive plate (211) is located between the positive electrode current collector sheets (114), the thickness of the thermal conductive plate (211) is the same as that of the laminated cell active material (113), and the thermal conductive plate (211) covers the positive electrode current collector sheet (114) at the outer part of the battery shell in a U shape.
5. The laminated power battery thermal management system based on heat transfer of a positive electrode current collector as claimed in claim 4, wherein the heat conducting plate (200) is provided with two sets of left and right embedded micro channels (212), outlets of the two sets of embedded micro channels (212) are respectively arranged at upper ends of two sides, and inlets of the two sets of embedded micro channels (212) are both located in the middle of the lower end of the battery shell and are both connected with the inlet confluence channel (215).
6. The laminated power battery thermal management system based on positive electrode current collector heat transfer of claim 5, characterized in that the heat conducting plate (211) has a thickness of 2.5mm and the embedded micro channels (212) have cross-sectional dimensions of 1.5mm x 2mm.
7. The laminated power battery thermal management system based on positive electrode current collector heat transfer of claim 2, characterized in that the thermal conductive plate (211) and the battery shell (117) are both made of aluminum.
8. The laminated power battery thermal management system based on positive electrode current collector heat transfer as claimed in claim 2, wherein the inlet confluence channel (215) is connected with an external radiator (500) and an external heater (600) through an external conduit (300), and liquid inlets of the external radiator (500) and the external heater (600) are respectively provided with a liquid cooling control valve and a heat flow control valve.
9. The laminated power battery thermal management system based on positive electrode current collector heat transfer is characterized in that the external conduit (300) is hermetically connected with the driving water pump (400), the heat conducting plate (211), the external radiator (500) and the external heater (600) through glue seals.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211272492.0A CN115714217A (en) | 2022-10-18 | 2022-10-18 | Laminated power battery thermal management system based on heat transfer of positive current collector |
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| CN202211272492.0A CN115714217A (en) | 2022-10-18 | 2022-10-18 | Laminated power battery thermal management system based on heat transfer of positive current collector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116936876A (en) * | 2023-09-18 | 2023-10-24 | 艾博特瑞能源科技(苏州)有限公司 | Flow battery energy storage system and operation method thereof |
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- 2022-10-18 CN CN202211272492.0A patent/CN115714217A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116936876A (en) * | 2023-09-18 | 2023-10-24 | 艾博特瑞能源科技(苏州)有限公司 | Flow battery energy storage system and operation method thereof |
| CN116936876B (en) * | 2023-09-18 | 2024-01-05 | 艾博特瑞能源科技(苏州)有限公司 | Flow battery energy storage system and operation method thereof |
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