Electrochemical energy storage waste heat closed circulation comprehensive utilization system and working method thereof

By designing a comprehensive waste heat closed circulation utilization system for electrochemical energy storage, the waste heat generated by the battery pack is complementary to the advantages of geothermal energy, which solves the problem of low waste heat utilization efficiency in the existing electrochemical energy storage system, and achieves more efficient energy utilization and safer system operation.

CN119542607APending Publication Date: 2025-02-28CHINA UNITED ENG
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Patent Information

Application Number
CN202411662547.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-02-28

AI Technical Summary

Technical Problem

While existing electrochemical energy storage systems are high in energy density and fast response, it is difficult to effectively utilize and manage the waste heat generated by the battery pack, resulting in low energy utilization efficiency and uneven temperature and safety hazards.

Method used

Design a comprehensive utilization system for closed-circulation of electrochemical energy storage waste heat storage. By combining the electrochemical energy storage heat source system and the geothermal source buried pipe system, the heat pump system is used to complement the advantages of the waste heat generated by the battery pack and the geothermal energy, and realize the closed recycling of waste heat.

Benefits of technology

It improves the energy utilization efficiency and economy of the electrochemical energy storage system, reduces the self-use of the electrochemical energy storage system, reduces the impact on the environment, and significantly improves the overall efficiency and safety of the system.

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Abstract

According to the electrochemical energy storage waste heat closed circulation comprehensive utilization system and the working method thereof, an electrochemical energy storage heat source and geothermal energy are subjected to advantage complementation, the system is environmentally friendly, and the energy utilization efficiency and economical efficiency can be improved. The input end heat exchanger is connected with a geothermal source buried pipe system; an outlet of the geothermal source buried pipe system is divided into two paths, one path is connected with the input end heat exchanger, and the other path is connected with the temperature control valve through a fourth valve. The compressor is connected with the input end heat exchanger and the output end heat exchanger, and the output end heat exchanger is connected with the input end heat exchanger and the heat preservation water tank. A cooling medium outlet of the battery system is divided into two paths, one path is connected with the geothermal source buried pipe system through a first valve, the other path is connected with an output end heat exchanger through a second valve, and the output end heat exchanger is connected with a temperature control valve through a third valve. The temperature control valve is connected with the cold liquid box and the cooler, the cold liquid box is connected with the battery system, and the cooler is connected with the cold liquid box.
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