Power battery waste heat recovery system and hydrogen-electricity hybrid vehicle

By designing a power battery waste heat recovery system in hydrogen-electric hybrid vehicles, using heat exchangers and battery three-way valves, the thermal management problems of power batteries are solved, and the effects of extending battery life, improving cockpit comfort and improving energy utilization are achieved.

CN120156248APending Publication Date: 2025-06-17ZHEJIANG GEELY HLDG GRP CO LTD +1
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Patent Information

Application Number
CN202311726662.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-12-14
Publication Date
2025-06-17

AI Technical Summary

Technical Problem

In hydrogen-electric hybrid vehicles, the heat generated by power batteries during discharge and charging is difficult to effectively manage and utilize, resulting in excessive battery temperature, affecting service life and safety, and also causing energy waste and low energy utilization efficiency.

Method used

A power battery waste heat recovery system is designed, including a heat exchanger, a stack, an air conditioning system, a power battery, a battery three-way valve and a first water pump. Through the cooperation of the heat exchanger and a battery three-way valve, the power battery waste heat is effectively recovered and utilized.

Benefits of technology

By effectively recycling and utilizing the waste heat of the power battery, the battery life is extended, the cockpit comfort is improved, and the energy utilization rate of the thermal management system of hydrogen-electric hybrid vehicles is greatly improved.

✦ Generated by Eureka AI based on patent content.
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Abstract

The invention provides a power battery waste heat recovery system and a hydrogen-electricity hybrid power vehicle, the power battery waste heat recovery system comprises a heat exchanger, an electric pile, an air conditioning system, a power battery, a battery three-way valve and a first water pump, the heat exchanger comprises a first channel and a second channel which can conduct heat exchange, and the liquid outlet end of the electric pile is connected with the liquid inlet end of the first channel; the air conditioning system and the power battery are respectively connected with the second channel in parallel; the liquid outlet end of the second channel is sequentially connected with the first water pump and the battery three-way valve, and the liquid outlet end of the battery three-way valve is connected to the air conditioning system and the power battery. According to the power battery waste heat recovery system and the hydrogen-electricity hybrid power vehicle, the waste heat of the power battery can be reasonably utilized, and the overall energy utilization efficiency is improved.
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