Phase change peak shifting temperature control system for electrochemical energy storage power station

Abstract

The utility model relates to the technical field of thermal management of energy storage systems, and discloses a phase change peak shifting temperature control system for an electrochemical energy storage power station, which comprises a refrigeration unit and a heat exchange unit, and the heat exchange unit is used for carrying out heat exchange on the electrochemical energy storage power station; the refrigeration unit comprises a refrigeration module used for providing cold energy; the phase change cold storage module is used for storing cold energy; the first heat exchange module is used for conveying the cold energy generated by the refrigeration module into the phase change cold storage module in the electricity consumption trough; and the second heat exchange module is used for conveying the cold energy accumulated by the phase change cold storage module to a heat exchange unit so as to cool the electrochemical energy storage power station. The temperature control system can solve the problem that in the prior art, when the temperature control system is used in the power utilization peak period, the power gap is increased, and the peak load shifting benefit is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal management of energy storage systems, and in particular to a phase change peak-shifting temperature control system for electrochemical energy storage power stations. Background Art

[0002] An electrochemical energy storage system uses electrochemical cells as energy storage carriers and energy storage converters to store and release cyclic electrical energy. It is generally used for peak shaving and valley filling (i.e., reducing load peaks and filling load valleys, thereby reducing the peak-to-valley difference in grid load and balancing power generation and consumption). In electrochemical energy storage systems, temperature has a significant impact on the capacity, lifespan, and stability of lithium batteries. When batteries are thermally abused, material damage may occur, generating abnormal heat, leading to runaway internal battery temperature. When the temperature difference between cells is too large, the battery pack will have consistency issues, resulting in decreased charge and discharge efficiency and reduced energy conversion efficiency.

[0003] In the existing technology, most of the temperature control systems including liquid cooling units and air conditioning systems are used to control the battery cell and ambient temperature in real time to ensure that the battery cell operates in the optimal temperature range.

[0004] However, if the temperature control system is used during peak electricity consumption hours, it will increase the power gap and reduce the effectiveness of peak shaving and valley filling. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide a phase change peak-shaving temperature control system for an electrochemical energy storage power station to solve the problem in the prior art that the use of the temperature control system during peak electricity consumption hours will increase the power gap and reduce the efficiency of peak shaving and valley filling.

[0006] The utility model solves the above technical problems through the following technical means:

[0007] A phase change peak-shifting temperature control system for an electrochemical energy storage power station, comprising:

[0008] A refrigeration unit and a heat exchange unit, wherein the heat exchange unit is used to perform heat exchange on the electrochemical energy storage power station;

[0009] The refrigeration unit comprises:

[0010] A refrigeration module for providing cold energy;

[0011] Phase change cold storage module, used to store cold energy;

[0012] The first heat exchange module is used to transfer the cold energy generated by the refrigeration module to the phase change cold storage module during low electricity consumption;

[0013] The second heat exchange module is used to transmit the cold energy stored in the phase change cold storage module to the heat exchange unit to cool the electrochemical energy storage power station.

[0014] Furthermore, a through module is provided between the refrigeration module and the heat exchange unit. When the phase change cold storage module cannot provide cold energy, the cold energy generated by the refrigeration module is transmitted to the heat exchange unit through the through module to cool the electrochemical energy storage power station.

[0015] Furthermore, a heating unit is included, and the heating unit includes:

[0016] A heating module, for providing heat energy;

[0017] Phase change thermal storage module, used to store thermal energy;

[0018] The third heat exchange module is used to transfer the heat energy generated by the heating module to the phase change heat storage module when electricity consumption is low;

[0019] The fourth heat exchange module is used to transport the thermal energy stored in the phase change thermal storage module to the heat exchange unit to heat the electrochemical energy storage power station.

[0020] Furthermore, the heating module is connected to the through module. When the phase change thermal storage module cannot provide thermal energy, the thermal energy generated by the heating module is transmitted to the heat exchange unit through the through module to heat the electrochemical energy storage power station.

[0021] Furthermore, the heat exchange unit is connected to a gating module, and the straight-through module, the second heat exchange module and the fourth heat exchange module are all connected to the gating module.

[0022] Furthermore, the first heat exchange module, the second heat exchange module, the third heat exchange module and the fourth heat exchange module have the same structure. The first heat exchange module includes a heat exchanger, a circulation pump and a heat exchange channel. A heat exchange medium is provided in the heat exchange channel.

[0023] Furthermore, the refrigeration module includes a compressor, a condenser and an expansion valve. A cooling channel is connected between the compressor, the condenser and the expansion valve, and a cooling medium is provided in the cooling channel.

[0024] Furthermore, the heating module includes a heater and a heating channel, and a heating medium is provided in the heating channel.

[0025] Furthermore, the phase change cold storage module includes a phase change cold storage tank, in which a phase change cold storage material is arranged; the phase change heat storage module includes a phase change heat storage tank, in which a phase change heat storage material is arranged.

[0026] Furthermore, the heat exchange unit includes a fifth heat exchange module, and the fifth heat exchange module is connected to the gating module.

[0027] Beneficial effects of the utility model:

[0028] 1. The present invention provides a phase-change cold storage module, a first heat exchange module, and a second heat exchange module. During low-power consumption periods, the cold energy generated by the refrigeration module is transferred to the phase-change cold storage module. During peak power consumption periods, when the temperature of the electrochemical energy storage power station is higher than the optimal temperature range, the cold energy stored in the phase-change cold storage module is directly transferred to the heat exchange unit to cool the battery modules in the electrochemical energy storage power station, effectively reducing the power occupied by the temperature control system.

[0029] 2. The present invention provides a phase-change heat storage module, a third heat exchange module, and a fourth heat exchange module. When electricity consumption is low, the heat energy generated by the heating module is transferred to the phase-change cold storage module. When electricity consumption is high and the temperature of the electrochemical energy storage power station is lower than the optimal temperature range, the heat energy stored in the phase-change heat storage module is directly transferred to the heat exchange unit to heat the battery modules in the electrochemical energy storage power station, thereby further reducing the power occupied by the temperature control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a principle block diagram of a phase change peak staggered temperature control system for an electrochemical energy storage power station in the present utility model;

[0031] in,

[0032] 1. Refrigeration module; 11. Compressor; 12. Condenser; 13. Expansion valve; 14. Cooling channel; 15. Refrigeration distribution valve;

[0033] 21. Phase change cold storage tank; 22. Phase change heat storage tank;

[0034] 3. First heat exchange module; 31. Heat exchanger; 32. Circulation pump; 33. Heat exchange channel;

[0035] 4. Fifth heat exchange module; 41. Air conditioner indoor unit; 42. Liquid cooling plate assembly;

[0036] 5. Strobe module; 51. Multi-way valve; 52. Strobe circulation pump; 53. Connecting pipes;

[0037] 61. Second heat exchange module; 62. Third heat exchange module; 63. Fourth heat exchange module;

[0038] 7. Through module; 71. Multi-channel heat exchanger;

[0039] 8. Heating module; 81. Heater; 82. Heating channel; 83. Heating distribution valve. DETAILED DESCRIPTION

[0040] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and are only schematic diagrams, not actual drawings. They should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the dimensions of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the figures.

[0041] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "up", "down", "left", "right", "front", "back", etc. indicate directions or positional relationships, they are based on the directions or positional relationships shown in the figures. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationships in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0042] like Figure 1 As shown, the utility model is a phase change peak staggered temperature control system for an electrochemical energy storage power station, comprising a refrigeration unit and a heat exchange unit, wherein the heat exchange unit is used to perform heat exchange on the electrochemical energy storage power station;

[0043] The refrigeration unit includes:

[0044] The refrigeration module 1 is used to provide cold energy; it should be noted that thermal energy is a form of energy. When the temperatures of two objects are different, thermal energy will be transferred from the object with higher temperature to the object with lower temperature, causing the object with lower temperature to heat up. In this embodiment, cold energy is defined as when the temperatures of two objects are different, the object with lower temperature absorbs the heat of the object with higher temperature, causing the object with higher temperature to cool down. In this embodiment, the refrigeration module 1 includes a compressor 11, a condenser 12 and an expansion valve 13. A cooling channel 14 is connected between the compressor 11, the condenser 12 and the expansion valve 13. A cooling medium (such as R410A (a mixed refrigerant of R32 (difluoromethane) and R125 (pentafluoroethane)), R134a (tetrafluoroethane), etc.) is provided in the cooling channel 14.

[0045] The phase change cold storage module is used to store cold energy. In this embodiment, the phase change cold storage module includes a phase change cold storage tank 21, in which a phase change cold storage material (such as octanoic acid (C8), capric acid (C10), etc.) is provided.

[0046] The first heat exchange module 3 is used to transfer the cold energy generated by the refrigeration module 1 to the phase-change cold storage module during periods of low electricity consumption. In this embodiment, the first heat exchange module 3 includes a heat exchanger 31, a circulating pump 32, and a heat exchange channel 33. A heat exchange medium (such as ethylene glycol) is provided in the heat exchange channel 33. During operation, the circulating pump 32 operates, causing the heat exchange medium to flow through the heat exchange channel 33. The cooling channel 14 and the heat exchange channel 33 exchange heat within the heat exchanger 31, and the cooling medium lowers the temperature of the heat exchange medium. When the heat exchange medium flows through the phase-change cold storage tank 21 through the heat exchange channel 33, it lowers the temperature of the phase-change cold storage material in the phase-change cold storage tank 21, thereby accumulating cold energy.

[0047] It should be noted that the heat exchanger 31 is a dual-channel heat exchanger. For example, the heat exchange medium flows into one channel, and the cooling medium flows into the other channel. The heat exchange medium and the cooling medium exchange heat in the dual-channel heat exchanger.

[0048] The second heat exchange module 61 is used to transfer the cold energy stored in the phase change cold storage module to the heat exchange unit when the temperature of the electrochemical energy storage station is higher than the optimal temperature range, so as to cool the battery modules in the electrochemical energy storage station.

[0049] In this embodiment, the heat exchange unit includes a fifth heat exchange module 4, which includes an air conditioner 41 and a liquid cooling plate assembly 42. The air conditioner 41 and the liquid cooling plate assembly 42 are located near the battery modules within the electrochemical energy storage power station for heat exchange. The fifth heat exchange module 4 is connected to a gating module 5, and the second heat exchange module 61 is connected to the gating module 5. In this embodiment, the gating module 5 includes a multi-way valve 51 with multiple control valves, a gating circulation pump 52, and multiple connecting pipes 53. The connecting pipes 53 are also provided with a heat exchange medium. The multi-way valve 51 can select the opening and closing of the control channel as needed. The air conditioner 41 and the liquid cooling plate assembly 42 are connected to the gating module 5 via the connecting pipes 53.

[0050] In this embodiment, the second heat exchange module 61 has the same structure as the first heat exchange module 3. The second heat exchange module 61 also includes a heat exchanger 31, a circulation pump 32, and a heat exchange channel 33. The selection module 5 is connected to the heat exchanger 31 via a connecting pipe 53. During operation, the circulation pump 32 operates, causing the heat exchange medium to flow within the heat exchange channel 33. When the heat exchange medium flows through the phase change cold storage tank 21, the phase change cold storage material cools the heat exchange medium. When the heat exchange medium in the heat exchange channel 33 flows through the heat exchanger 31, the temperature of the heat exchange medium in the connecting pipe 53 is reduced. The circulation pump 52 is selected to allow the heat exchange medium in the connecting pipe 53 to flow. When the heat exchange medium flows through the air conditioner indoor unit 41, the air conditioner indoor unit 41 operates, blowing the cold energy of the heat exchange medium into the space of the electrochemical energy storage power station, thereby cooling the battery modules within the electrochemical energy storage power station. When the heat exchange medium flows through the liquid cooling plate group 42 , the heat exchange medium absorbs the heat of the battery modules in the electrochemical energy storage power station space, thereby cooling the battery modules in the electrochemical energy storage power station.

[0051] A through module 7 is provided between the refrigeration module 1 and the heat exchange unit. In this embodiment, a multi-channel heat exchanger 71 is provided in the through module 7. The selection module 5 is connected to the multi-channel heat exchanger 71 through the connecting pipe 53, and the cooling channel 14 is connected to the multi-channel heat exchanger 71 of the through module 7. When the phase change cold storage module cannot provide cold energy (such as insufficient stored cold energy or during the cold energy storage process), the cold energy generated by the refrigeration module 1 is transported to the heat exchange unit through the through module 7 to cool the electrochemical energy storage power station. During operation, the cooling medium flows into the multi-channel heat exchanger 71, cooling the heat exchange medium in the connecting pipe 53. The circulation pump 52 is selected to flow the heat exchange medium in the connecting pipe 53, thereby flowing to the electrochemical energy storage power station to cool the battery modules in the electrochemical energy storage power station. It should be noted that the multi-channel heat exchanger 71 and the heat exchanger 31 of the first heat exchange module 3 are connected in parallel, and a cooling distribution valve 15 is provided between the cooling channel 14 and the multi-channel heat exchanger 71 to control the flow direction of the heating medium in the cooling channel 14.

[0052] The phase change peak-shifting temperature control system for an electrochemical energy storage power station of this embodiment further includes a heating unit, which includes:

[0053] The heating module 8 is used to provide heat energy. In this embodiment, the heating module 8 includes a heater 81 and a heating channel 82 , and a heating medium (such as heat dissipation oil) is provided in the heating channel 82 .

[0054] The phase change thermal storage module is used to store thermal energy. In this embodiment, the phase change thermal storage module includes a phase change thermal storage tank 22 , in which a phase change thermal storage material (such as a composite material of linear alkane and crystalline hydrated salt) is arranged.

[0055] The third heat exchange module 62 is used to transfer the heat energy generated by the heating module 8 to the phase-change thermal storage module during periods of low electricity consumption. In this embodiment, the third heat exchange module 62 has the same structure as the first heat exchange module 3, and also includes a heat exchanger 31, a circulating pump 32, and a heat exchange channel 33. During operation, the circulating pump 32 operates, causing the heat exchange medium to flow through the heat exchange channel 33. The heating channel 82 and the heat exchange channel 33 exchange heat within the heat exchanger 31, raising the temperature of the heat exchange medium. When the heat exchange medium flows through the phase-change thermal storage tank 22 through the heat exchange channel 33, it raises the temperature of the phase-change thermal storage material in the phase-change thermal storage tank 22, thereby accumulating thermal energy.

[0056] The fourth heat exchange module 63 is used to transfer the heat energy stored in the phase-change thermal storage module to the heat exchange unit when the temperature of the electrochemical energy storage station falls below the optimal temperature range, thereby heating the electrochemical energy storage station. In this embodiment, the fourth heat exchange module 63 has the same structure as the first heat exchange module 3 and also includes a heat exchanger 31, a circulation pump 32, and a heat exchange channel 33. During operation, the circulation pump 32 operates, causing the heat exchange medium to flow within the heat exchange channel 33. As the heat exchange medium flows through the phase-change thermal storage tank 22, the phase-change thermal storage material heats the heat exchange medium. As the heat exchange medium in the heat exchange channel 33 flows through the heat exchanger 31, the temperature of the heat exchange medium in the connecting pipe 53 is increased. The circulation pump 52 is activated to allow the heat exchange medium in the connecting pipe 53 to flow. When the heat exchange medium flows through the air conditioner 41, the air conditioner 41 operates, discharging the heat energy of the heat exchange medium into the electrochemical energy storage station space, thereby heating the battery modules within the electrochemical energy storage station. When the heat exchange medium flows through the liquid cooling plate group 42 , the heat exchange medium reduces the heat and dissipates it into the space of the electrochemical energy storage power station, thereby heating the battery modules in the electrochemical energy storage power station.

[0057] In this embodiment, the heating channel 82 is connected to the multi-channel heat exchanger 71 of the through module 7. When the phase change heat storage module cannot provide heat energy (such as insufficient stored heat energy or during the heat energy storage process), the heat energy generated by the heating module 8 is transported to the heat exchange unit through the through module 7 to heat the battery modules in the electrochemical energy storage power station. During operation, the heating medium flows into the multi-channel heat exchanger 71, heating the heat exchange medium in the connecting pipe 53. The circulating pump 52 is selected to allow the heat exchange medium in the connecting pipe 53 to flow, heating the battery modules in the electrochemical energy storage power station. It should be noted that the multi-channel heat exchanger 71 and the heat exchanger 31 of the third heat exchange module 62 are connected in parallel, and a heating distribution valve 83 is provided between the heating channel 82 and the multi-channel heat exchanger 71 to control the flow direction of the heating medium in the heating channel 82.

[0058] The working principle of this utility model is as follows:

[0059] During the low electricity consumption period, when the phase change cold storage material in the phase change cold storage tank 21 is cooled:

[0060] The circulation pump 32 of the first heat exchange module 3 works to make the heat exchange medium flow in the heat exchange channel 33. The cooling channel 14 and the heat exchange channel 33 exchange heat in the heat exchanger 31. The temperature of the heat exchange medium is reduced by the cooling medium. When the heat exchange medium flows through the phase change cold storage tank 21 through the heat exchange channel 33, the temperature of the phase change cold storage material in the phase change cold storage tank 21 is reduced, thereby realizing the accumulation of cold energy.

[0061] When cooling the electrochemical energy storage power station during peak electricity consumption:

[0062] The circulation pump 32 of the second heat exchange module 61 works, causing the heat exchange medium to flow in the heat exchange channel 33. When the heat exchange medium flows through the phase change cold storage tank 21, the phase change cold storage material cools down the heat exchange medium. When the heat exchange medium in the heat exchange channel 33 flows through the heat exchanger 31, the temperature of the heat exchange medium in the connecting pipe 53 is reduced. The circulation pump 52 is selected to allow the heat exchange medium in the connecting pipe 53 to flow. When the heat exchange medium flows through the air conditioner indoor unit 41, the air conditioner indoor unit 41 works, blowing the cold energy of the heat exchange medium to the space of the electrochemical energy storage power station, thereby cooling the electrochemical energy storage power station. When the heat exchange medium flows through the liquid cooling plate group 42, the heat exchange medium absorbs the various battery modules inside the electrochemical energy storage power station, thereby cooling down the various battery modules.

[0063] During the low electricity consumption period, when heating the phase change thermal storage material in the phase change thermal storage tank 22:

[0064] The circulation pump 32 of the third heat exchange module 62 operates to cause the heat exchange medium to flow in the heat exchange channel 33. The heating channel 82 and the heat exchange channel 33 exchange heat in the heat exchanger 31. The temperature of the heat exchange medium is increased by the heating medium. When the heat exchange medium flows through the phase change thermal storage tank 22 through the heat exchange channel 33, the temperature of the phase change thermal storage material in the phase change thermal storage tank 22 is increased, thereby achieving thermal energy accumulation.

[0065] During peak electricity consumption, when heating the electrochemical energy storage power station:

[0066] The circulation pump 32 of the fourth heat exchange module 63 operates, causing the heat exchange medium to flow in the heat exchange channel 33. When the heat exchange medium flows through the phase change heat storage tank 22, the phase change heat storage material heats the heat exchange medium. When the heat exchange medium in the heat exchange channel 33 flows through the heat exchanger 31, the temperature of the heat exchange medium in the connecting pipe 53 is increased. The circulation pump 52 is selected to allow the heat exchange medium in the connecting pipe 53 to flow. When the heat exchange medium flows through the air conditioner indoor unit 41, the air conditioner indoor unit 41 operates, blowing the heat energy of the heat exchange medium into the space of the electrochemical energy storage power station, thereby heating the environment of the electrochemical energy storage power station. When the heat exchange medium flows through the liquid cooling plate group 42, the heat exchange medium dissipates heat to each battery module inside the electrochemical energy storage power station, thereby heating each battery module.

[0067] When the phase change thermal storage module cannot provide cold energy:

[0068] By controlling the refrigeration distribution valve, the cooling medium in the cooling channel 14 flows into the multi-channel heat exchanger 71 to cool the heat exchange medium in the connecting pipe 53. The circulation pump 52 is selected to allow the heat exchange medium in the connecting pipe 53 to flow, thereby cooling the various battery modules inside the electrochemical energy storage power station.

[0069] When the phase change thermal storage module cannot provide thermal energy:

[0070] By controlling the heating distribution valve, the heating medium in the heating channel 82 flows into the multi-channel heat exchanger 71 to heat the heat exchange medium in the connecting pipe 53. The circulation pump 52 is selected to allow the heat exchange medium in the connecting pipe 53 to flow and heat the various battery modules inside the electrochemical energy storage power station.

[0071] The above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and such modifications or equivalent substitutions shall be encompassed by the claims of the present invention. The techniques, shapes, and structural portions not described in detail in the present invention are well known.

Claims

1. A phase change peak staggered temperature control system for an electrochemical energy storage power station, characterized in that: include: A refrigeration unit and a heat exchange unit, wherein the heat exchange unit is used to perform heat exchange on the electrochemical energy storage power station; The refrigeration unit comprises: A refrigeration module (1) for providing cold energy; Phase change cold storage module, used to store cold energy; A first heat exchange module (3) is used to transmit the cold energy generated by the refrigeration module (1) to the phase-change cold storage module during low electricity consumption periods; A second heat exchange module (61) is used to transmit the cold energy stored in the phase change cold storage module to the heat exchange unit to cool the electrochemical energy storage power station; A through module (7) is provided between the refrigeration module (1) and the heat exchange unit. When the phase change cold storage module cannot provide cold energy, the cold energy generated by the refrigeration module (1) is transported to the heat exchange unit through the through module (7) to cool the electrochemical energy storage power station. Also included is a heating unit, the heating unit comprising: A heating module (8) for providing heat energy; Phase change thermal storage module, used to store thermal energy; a third heat exchange module (62) for transferring heat energy generated by the heating module (8) to the phase-change heat storage module during periods of low electricity consumption; a fourth heat exchange module (63) for transmitting the heat energy stored in the phase change heat storage module to a heat exchange unit to heat the electrochemical energy storage power station; The heating module (8) is connected to the through module (7), and when the phase change heat storage module cannot provide heat energy, the heat energy generated by the heating module (8) is transported to the heat exchange unit through the through module (7) to heat the electrochemical energy storage power station; The heat exchange unit is connected to a gating module (5), and the straight-through module (7), the second heat exchange module (61) and the fourth heat exchange module (63) are all connected to the gating module (5).

2. A phase change peak staggered temperature control system for an electrochemical energy storage power station according to claim 1, characterized in that: The first heat exchange module (3), the second heat exchange module (61), the third heat exchange module (62) and the fourth heat exchange module (63) all have the same structure. The first heat exchange module (3) comprises a heat exchanger (31), a circulation pump (32) and a heat exchange channel (33). A heat exchange medium is provided in the heat exchange channel (33).

3. A phase change peak staggered temperature control system for an electrochemical energy storage power station according to claim 1, characterized in that: The refrigeration module (1) comprises a compressor (11), a condenser (12) and an expansion valve (13); a cooling channel (14) is connected between the compressor (11), the condenser (12) and the expansion valve (13); and a cooling medium is provided in the cooling channel (14).

4. A phase change peak staggered temperature control system for an electrochemical energy storage power station according to claim 1, characterized in that: The heating module (8) comprises a heater (81) and a heating channel (82), wherein a heating medium is provided in the heating channel (82).

5. The phase change peak staggered temperature control system for an electrochemical energy storage power station according to claim 1, characterized in that: The phase-change cold storage module comprises a phase-change cold storage tank (21), in which a phase-change cold storage material is arranged; and the phase-change heat storage module comprises a phase-change heat storage tank (22), in which a phase-change heat storage material is arranged.

6. The phase change peak staggered temperature control system for an electrochemical energy storage power station according to claim 1, characterized in that: The heat exchange unit comprises a fifth heat exchange module (4), and the fifth heat exchange module (4) is connected to the gating module (5).

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