CN220627944U - Submerged type thermal management system for energy storage battery - Google Patents

Abstract

The utility model discloses an energy storage battery immersed heat management system, which relates to the field of battery heat management and comprises the following components: the battery box comprises a battery module and a coolant immersing container capable of moving up and down along the height direction of the battery module, the battery module is fixed in the battery box through an upper detachable fixing frame and a lower detachable fixing frame, the coolant immersing container is provided with an upper partition plate and a lower partition plate, and a space for containing coolant is formed among the upper partition plate, the lower partition plate, the outer side surface of the battery module and the inner wall of the battery box; the coolant distribution cabinet has a heat exchanger in communication with the coolant-immersed vessel through a coolant outlet conduit and a circulating water pump in communication with the heat exchanger through a heat exchanger coolant outlet conduit, the circulating water pump in contact with the heat exchanger through a coolant inlet conduit and connected to the coolant-immersed vessel.

Description

Submerged type thermal management system for energy storage battery

Technical Field

The utility model relates to the field of battery thermal management, in particular to an energy storage battery immersed thermal management system.

Background

Renewable energy power generation such as photovoltaic power generation and wind power generation has volatility and intermittence, the characteristic can influence the steady state balance of a power system, and the influence is aggravated with large-scale and high-proportion application of future renewable energy power generation. In order to solve the problem, the energy storage technology is used for providing auxiliary services such as peak regulation and frequency modulation for the operation of the power system by adjusting among various power energy sources and power demands, and is one of key technologies for promoting the stability, flexibility and intelligence of the power system. The energy storage battery is used as a key core component of an energy storage technology and is generally formed by connecting a plurality of battery modules in series, and a plurality of electric cores are arranged in each battery module, so that the performance, the service life and the thermal safety of the battery module are extremely high in temperature sensitivity. The movable energy storage battery is required to be light and convenient, so that the internal battery cells are arranged more tightly, and the heat generation amount of the energy storage battery module in the working process is increased. When heat is continuously accumulated in the module and is not taken away in time, the temperature in the battery module is continuously increased, so that the performance of the battery is reduced, the aging rate is accelerated, and even accidents such as thermal runaway and the like can be caused under extreme conditions. Therefore, it is important to configure a battery thermal management system capable of effectively suppressing the temperature rise of the battery module and ensuring the temperature uniformity of the module.

Currently, technical configurations with high power, long-term operation, and fast charging have gradually become the mainstream development trend and market demand of energy storage batteries. With the development of energy storage batteries, battery thermal management systems face challenges of: the system is simple and portable, the power consumption of the heat management system is reduced while the requirements of the power battery on heat dissipation and temperature uniformity are met, and the thermal runaway can be effectively restrained. The thermal management systems described above have their own advantages, but still have certain limitations, particularly in terms of inhibiting thermal runaway. Submerged cooling is a potential solution in addressing the challenges described above.

In submerged cooling, the battery is completely immersed in a dielectric coolant fluid, absorbs heat generated from the operation of the battery by using sensible heat or latent heat of the liquid, and then transfers the heat to the outside of the system by a circulation pump or the like. According to whether the cooling working medium is subjected to phase change in the heat transfer process, the immersed cooling is divided into single-phase immersed cooling and gas-liquid two-phase immersed cooling. Compared to conventional air cooling, phase change material cooling, etc., submerged cooling exhibits better cooling capacity due to the high specific heat capacity and convective heat transfer coefficient of the liquid coolant. Compared with indirect contact cooling, the direct contact between the battery and the insulating fluid in the immersed cooling system greatly simplifies the system design, reduces the contact thermal resistance and remarkably improves the heat transfer rate. In addition, many coolants can be used as fire extinguishing agents due to their nonflammability, reducing the impact of thermal runaway.

In single-phase submerged cooling, there remains a need for improvement. The batteries and the submerged cooling system have a problem of excessive weight because the batteries are entirely submerged in the dielectric coolant.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the submerged heat management system for the energy storage battery, which can effectively inhibit the temperature rise of the battery module, ensure the temperature uniformity of the module and reduce the weight and the power consumption of the system through the modularized design.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

an energy storage battery submerged thermal management system, comprising:

the battery box body comprises a battery module and a coolant immersing container capable of moving up and down along the height direction of the battery module, the battery module is fixed in the battery box body through an upper detachable fixing frame and a lower detachable fixing frame, the coolant immersing container is provided with an upper-layer partition plate and a lower-layer partition plate, and a space for accommodating coolant is formed among the upper-layer partition plate, the lower-layer partition plate, the outer side surface of the battery module and the inner wall of the battery box body;

a coolant distribution cabinet having a heat exchanger in communication with the coolant submerged container through a coolant outlet conduit and a circulating water pump in communication with the heat exchanger through a heat exchanger coolant outlet conduit, the circulating water pump in contact with the heat exchanger through a coolant inlet conduit and connected to the coolant submerged container.

Optionally, the battery cooling device further comprises a control cabinet, a controller is arranged in the control cabinet, the controller is provided with a battery temperature acquisition module, a temperature sensor is arranged in the coolant immersing container or on the battery module, and the temperature sensor is in control signal connection with the battery temperature acquisition module.

Optionally, the coolant distribution cabinet is further provided with a coolant container, which is in communication with the heat exchanger through a coolant container inlet and outlet duct.

Optionally, the upper separator and the lower separator are connected in the battery box through a moving assembly; the servo controller of the moving assembly is connected with the controller in a control signal manner.

Optionally, a battery charging and discharging device is further arranged in the control cabinet, and the battery charging and discharging device is connected with the battery module control signal.

Optionally, the heat exchanger coolant inlet, the heat exchanger coolant outlet, and the coolant container inlet and outlet are provided with water valve switches.

Optionally, the coolant vessel comprises one or any combination of several of mineral oil coolant, silicon-based coolant, synthetic oil coolant.

Optionally, a moving groove is arranged at the interface of the coolant inlet and the coolant outlet, and the moving groove is connected with the controller control signal.

Optionally, a depth gauge is arranged on the inner wall of the battery box body.

Optionally, the heat exchanger is provided with a flowmeter through a coolant inlet pipeline, and the circulating water pump is provided with a power meter.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the battery module can be modularized by translating the upper-layer partition plate and the lower-layer partition plate through the controller, so that the main heating part of the battery module can be accommodated in the modularized cavity, and the coolant flows in the modularized cavity in the cooling process to take away the heat generated by the operation of the battery module; controlling the positions of the coolant inlet and the coolant outlet at the interface of the battery box body by using a controller so that the coolant inlet and the coolant outlet are positioned at the intersection of the modularized cavity and the interface; an internal circulation loop is formed by connecting a coolant inlet, a modularized cavity, a coolant outlet, a heat exchanger coolant inlet, a heat exchanger coolant outlet and a circulating water pump, and when the cooling process is running, the internal circulation loop is connected with a water valve switch by controlling to be used as a coolant flow path in the charge and discharge process; an external circulation loop is formed by connecting a coolant inlet, a modularized cavity, a circulating water pump and a coolant container inlet and outlet, the external circulation loop is used for filling and evacuating the modularized cavity coolant under the control of a water valve switch, and the external circulation loop can realize the replacement of the coolant in the modularized cavity and increase or decrease the coolant consumption according to the cooling requirement; controlling the charging and discharging working process of the battery module through the battery charging and discharging device, and collecting voltage and current data of the battery module in the charging and discharging working process in real time; the temperature sensor arranged outside the battery module and at the coolant is converged on the temperature acquisition module, and the temperature acquisition module records and analyzes the temperature data of the battery module and the coolant; the method comprises the steps that voltage, current and temperature data monitored in real time by a battery charging and discharging device and a temperature acquisition module are visualized, the working process of an energy storage battery is visualized, the data are summarized at a controller, a main heating area of the battery module is analyzed and positioned in real time, related instructions are generated, the controller adjusts the position of a modularized cavity according to the related instructions to accommodate the main heating part of the battery module in the modularized cavity, and parameters such as the consumption of a coolant, the type of the coolant, the flow rate and the arrangement mode of the battery are adjusted, so that the enhanced heat transfer is realized; the modular design realizes local cooling of the main heating area of the battery module, effectively reduces the usage amount of coolant and pumping power, reduces the weight and power consumption of the system, and can meet various cooling requirements of different energy storage batteries.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of the present utility model;

FIG. 2 is a schematic view of a battery case according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a coolant distribution cabinet according to an embodiment of the utility model;

FIG. 4 is a schematic view of a modular chamber embodying the present utility model;

FIG. 5 is a schematic diagram of an internal circulation loop structure according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of an embodiment of the present utility model.

Reference numerals: 1. a battery case; 2. a coolant distribution cabinet; 3. a control module; 4. an upper separator; 5. a lower separator; 6. a coolant container; 7. a modular cavity; 8. a case cover; 9. a detachable fixing frame; 10. a battery module; 11. a cooling agent; 12. a temperature sensor; 13. a depth gauge; 14. a heat exchanger; 15. a flow meter; 16. a circulating water pump; 17. a power meter; 18. a coolant inlet; 19. a coolant outlet; 20. a heat exchanger coolant inlet; 21. a heat exchanger coolant outlet; 22. a coolant container inlet and outlet.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Examples:

it should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.

It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like are directional or positional relationships as indicated based on the drawings, merely to facilitate describing the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. Furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Referring to fig. 1-6, an energy storage battery submerged thermal management system comprising: the battery box 1 and the coolant distribution cabinet 2, specifically, the battery box 1 comprises a battery module 10 and a coolant immersing container capable of moving up and down along the height direction of the battery module 10, the battery module 10 is fixed in the battery box 1 through an upper detachable fixing frame 9 and a lower detachable fixing frame 9, the coolant immersing container is provided with an upper partition plate 4 and a lower partition plate 5, and a space for containing a coolant 11 is formed among the upper partition plate 4, the lower partition plate 5, the outer side surface of the battery module 10 and the inner wall of the battery box 1; the coolant distribution cabinet 2 has a heat exchanger 14 communicating with the coolant-immersed vessel through a coolant outlet conduit, and a circulating water pump 16 communicating with the heat exchanger 14 through a heat exchanger coolant outlet conduit, the circulating water pump 16 being in contact with the heat exchanger 14 through a coolant inlet conduit and being connected to the coolant-immersed vessel.

In this embodiment, the space for containing the coolant 11 is formed between the outer side surface of the upper separator 4, the lower separator 5, the battery module 10 and the inner wall of the battery case 1 by controlling the upper separator 4 and the lower separator 5 to move up and down, so that the main heat-generating portion of the battery module 10 is contained in the modularized cavity 7 (the space for containing the coolant 11), the coolant 11 flows in the modularized cavity 7 during the cooling process, the heat generated by the operation of the battery module 10 is taken away, the temperature rise of the battery module 10 is effectively suppressed, the uniformity of the module temperature is ensured, and the weight and the power consumption of the system are reduced by the modularized design. It will be appreciated that the contact between the lower separator 5 and the battery module 10 is such as to allow the coolant 11 to leak below the space containing the coolant 11, i.e., at the bottom of the battery case 1, and the main idea of the present utility model is that the modular chamber 7 (the space containing the coolant 11) is a pumped flow area where the coolant 11 is flowing at a faster rate, and transfers heat quickly, and that a static immersion effect can be achieved even if there is a small amount of coolant 11 at the bottom of the battery case 1.

Furthermore, the coolant distribution cabinet 2 has a heat exchanger 14 and a circulating water pump 16, and the flow direction of the coolant 11 of the internal circulation circuit of the coolant distribution cabinet 2 is as follows: the coolant 11 enters the coolant outlet duct from the coolant outlet 19, then enters the heat exchanger 14 (heat exchanger coolant inlet 20 in, heat exchanger coolant outlet 21 out), then enters the circulation water pump 16, and finally is conveyed into the modular cavity 7 (space accommodating the coolant 11) through the coolant inlet duct.

In certain preferred embodiments, an energy storage battery submerged thermal management system may further comprise a battery box 1, a coolant distribution cabinet 2, and a control module 3, wherein the battery box 1 and the coolant distribution cabinet 2 are connected through a circulation loop; the control module 3 comprises a battery charging and discharging device, a temperature acquisition module and a controller; the charging and discharging device is connected with the battery module 10 in the battery box body 1 and is used for controlling the charging and discharging process of the energy storage battery and collecting voltage and current data of the battery module 10 in the charging and discharging process in real time; the temperature acquisition module is connected with the battery module 10 and the coolant 11 in the battery box body 1 through the temperature sensor 12 and is used for acquiring temperature data of each position of the battery module 10 and the coolant in the charging and discharging processes in real time; the data collected by the charging and discharging device and the temperature collecting module are collected in real time at the controller, and the controller analyzes in real time according to the collected data, positions the main heating area of the battery module 10, and generates relevant instructions to feed back and regulate the components in the battery box 1 and the coolant distribution cabinet 2. It should be noted that the present utility model does not relate to an improvement of the control algorithm of the above-described process.

Fig. 2 is a schematic structural view of a battery box 1, as shown in fig. 2, specifically including a box cover 8, a detachable fixing frame 9, an upper partition board 4, a lower partition board 5, a battery module 10, a coolant 11, a temperature sensor 12, and a depth gauge 13, wherein the box cover 8 is installed above the battery box 1 to seal the battery box 1; the detachable fixing frame 9 is disposed at the bottom of the battery case 1, so as to fix the battery module 10 to the bottom of the battery case 1, and the detachable fixing frame 9 can replace the battery module 10 and can change the battery arrangement mode by adjusting the fixing position of the battery cells (it will be understood that the battery cell arrangement mode and the interval between the battery cells in the drawings are not necessarily used in practice). The upper layer partition board 4 and the lower layer partition board 5 are arranged at the upper end and the lower end of the detachable fixing frame 9, a modularized cavity 7 is formed in the battery box body 1, the upper layer partition board and the lower layer partition board are connected with the controller, the controller can translate up and down, different parts of the battery module 10 can be accommodated in the modularized cavity 7 through the movement of the upper layer partition board and the lower layer partition board, the real-time analysis of summarized data by combining the controller is combined, and the modularized cavity 7 can accommodate the main heating area of the battery module 10 through instructions. It is understood that the upper separator and the lower separator are connected in the battery case by a moving assembly; the servo controller of the moving assembly is connected with the controller in a control signal manner. The moving component can be a screw rod linear module, a linear motor and the like in the prior art, the battery module 10 is in direct contact with the coolant 11 in the modularized cavity 7 in the battery box body 1, and the coolant 11 absorbs heat generated by the operation of the battery module 10 and then flows to the heat exchanger 14 to transfer the heat to the external environment; the temperature sensor 12 is arranged outside the battery module 10 and at the coolant 11, and collects temperature data of the battery module 10 and the coolant in real time; the depth gauge 13 is disposed at the side of the battery case 1, and can record the relative height of the coolant 11 in the battery case 1 in real time.

Fig. 3 is a schematic view of a coolant distribution cabinet 2 according to an embodiment of the present utility model, as shown in fig. 3, specifically including a heat exchanger 14, a flow meter 15, a circulating water pump 16, a power meter 17, and a coolant container 6, where a coolant inlet 18, a coolant outlet 19, and a moving tank are disposed at an intersecting interface of the coolant distribution cabinet 2 and the battery case 1, and the coolant inlet 18 and the coolant outlet 19 are movable (such as a hose connection is disposed) in the moving tank; the heat exchanger 14 is provided with a heat exchanger coolant inlet 20, a heat exchanger coolant outlet 21 and a coolant container inlet and outlet 22; a coolant channel is arranged in the heat exchanger 14, and when the coolant 11 flows through the heat exchanger 14, heat is transferred to the external environment through the heat exchanger 14; the flowmeter 15 is arranged on the coolant channel and connected with the controller for monitoring and adjusting the real-time flow of the coolant 11; the circulating water pump 16 is used for providing power for the flow of the coolant 11; the power meter 17 is used for monitoring and recording the power consumption data of the system; the coolant container 6 contains a mineral oil coolant, a silicon-based coolant, and a fluorinated liquid coolant, and the coolant 11 is suitably selected according to the cooling requirements. An internal circulation loop is formed by connecting a coolant inlet 18, a modularized cavity 7, a coolant outlet 19, a heat exchanger coolant inlet 20, a heat exchanger 14, a heat exchanger coolant outlet 21 and a circulating water pump 16, and is connected with a water valve switch to be used as a flow path of the coolant 11 in the charge and discharge process when the cooling process is running; by connecting the coolant inlet 18, the modular cavity 7, the circulating water pump 16, the coolant container inlet and outlet 22, an external circulation loop is formed, which is used for filling and evacuating the coolant 11 in the modular cavity 7 under the control of a water valve switch, and can realize the replacement of the coolant 11 in the modular cavity 7 and increase or decrease the consumption of the coolant 11 according to the cooling requirement. When filling the coolant 11, the coolant 11 of the coolant distribution cabinet 2 flows in the following direction: coolant 11 passes from coolant reservoir 6 to heat exchanger 14, to circulating water pump 16, and finally into modular cavity 7. When evacuating the coolant 11, the coolant 11 flow direction of the coolant distribution cabinet 2 is as follows: the coolant 11 passes from the modular cavity 7 to the circulating water pump 16, to the heat exchanger 14 and finally into the coolant container 6.

Fig. 4 is a schematic view of a modularized cavity 7 according to an embodiment of the present utility model, as shown in fig. 4, specifically including an upper separator 4, a lower separator 5, a battery module 10, and a detachable fixing frame 9, where the modularized cavity 7 can be divided into two immersion modes according to different positions of the upper separator 4 and the lower separator 5 in the battery case 1: complete immersion and partial immersion; wherein, the upper separator 4 is positioned above and above the detachable fixing frame 9, when the lower separator 5 is positioned at the bottom of the battery box body 1, the immersion mode is completely immersed, in which case, the battery module 10 is completely immersed in the coolant 11, thus realizing omnibearing cooling of the battery module 10, and more coolant 11 and pump work are needed; when the upper separator 4 is positioned below the detachable fixing frame 9 and the lower separator 5 is positioned above the detachable fixing frame 9, the immersing mode is partially immersing, in which case, the battery module 10 is partially immersed in the coolant 11, and thus, the battery module 10 can be partially and pointedly cooled.

Fig. 5 is a schematic view of the internal circulation circuit structure of the embodiment of the present utility model, as shown in fig. 5, in the circulation circuit, the coolant 11 flows in the coolant inlet 18, the modularized cavity 7, the coolant outlet 19, the heat exchanger coolant inlet 20, the heat exchanger 14, the heat exchanger coolant outlet 21, and the circulating water pump 16 in sequence; when the coolant 11 flows into the modularized cavity 7, the sensible heat of the coolant is utilized to absorb heat generated by the operation of the battery module 10, then the heat enters the heat exchanger 14 from the coolant inlet 20 of the heat exchanger through the coolant outlet 19, the heat is transferred to the external environment at the heat exchanger 14, and after the heat exchange is completed, the heat enters the modularized cavity 7 from the coolant inlet 18 through the coolant outlet 21 of the heat exchanger, and the circulation of the loop is continued; the internal circulation loop is a heat transfer loop in the working process of the system.

Fig. 6 is a schematic view showing the structure of an external circulation circuit according to the embodiment of the present utility model, in which the coolant 11 flows in the coolant tank 6, the coolant tank inlet and outlet 22, the circulation water pump 16, the coolant inlet 18, and the modular chamber 7 in this order, as shown in fig. 6; the coolant 11 is stored in the coolant container 6, and when the coolant 11 is filled, the controller controls the water valve switch to connect the passage between the coolant container inlet and outlet 22 and the coolant inlet 18, and then the coolant 11 flows from the inside of the coolant container 6 to the coolant inlet 18 through the coolant container inlet and outlet 22, so that the filling of the coolant 11 is completed. When evacuating the coolant 11, the controller controls the water valve switch to connect the passage between the coolant container inlet and outlet 22 and the coolant inlet 18, and then the coolant 11 flows from the modular cavity 7 through the coolant inlet 18 to the coolant container inlet and outlet 22, completing the evacuation of the coolant 11.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the essence of the present utility model are intended to be included within the scope of the present utility model.

Claims (10)

1. An energy storage battery submerged thermal management system, comprising:

the battery box body comprises a battery module and a coolant immersing container capable of moving up and down along the height direction of the battery module, the battery module is fixed in the battery box body through an upper detachable fixing frame and a lower detachable fixing frame, the coolant immersing container is provided with an upper-layer partition plate and a lower-layer partition plate, and a space for accommodating coolant is formed among the upper-layer partition plate, the lower-layer partition plate, the outer side surface of the battery module and the inner wall of the battery box body;

a coolant distribution cabinet having a heat exchanger in communication with the coolant submerged container through a coolant outlet conduit and a circulating water pump in communication with the heat exchanger through a heat exchanger coolant outlet conduit, the circulating water pump in contact with the heat exchanger through a coolant inlet conduit and connected to the coolant submerged container.

2. The energy storage battery submerged thermal management system of claim 1, further comprising a control cabinet, wherein a controller is disposed in the control cabinet, the controller has a battery temperature acquisition module, and a temperature sensor is disposed in the coolant submerged container or on the battery module, and is in control signal connection with the battery temperature acquisition module.

3. The energy storage cell submerged thermal management system of claim 1, wherein the coolant distribution cabinet is further provided with a coolant reservoir in communication with the heat exchanger through a coolant reservoir inlet and outlet conduit.

4. The energy storage cell submerged thermal management system of claim 2, wherein the upper and lower baffles are connected within the cell housing by a moving assembly; the servo controller of the moving assembly is connected with the controller in a control signal manner.

5. The submerged thermal management system of claim 2, wherein a battery charging and discharging device is further disposed in the control box, and the battery charging and discharging device is in signal connection with the battery module.

6. The energy storage cell submerged thermal management system of claim 1, wherein the heat exchanger coolant inlet, the heat exchanger coolant outlet, and the coolant reservoir inlet and outlet are provided with water valve switches.

7. A submerged thermal management system for an energy storage battery according to claim 3 wherein the coolant vessel comprises one or a combination of any of a mineral oil coolant, a silicon based coolant, a synthetic oil coolant.

8. The energy storage cell submerged thermal management system of claim 2, wherein a moving tank is provided at an interface where the coolant inlet and coolant outlet are located, the moving tank being in control signal connection with the controller.

9. The energy storage battery submerged thermal management system of claim 1, wherein the inner wall of the battery box is provided with a depth gauge.

10. The energy storage cell submerged thermal management system of claim 1, wherein the heat exchanger is provided with a flow meter through a coolant inlet conduit and the circulating water pump is provided with a power meter.