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How to improve thermal management technology of high-energy-density batteries

Time:2024-03-23 Preview:1 source:News

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Improving the thermal management technology of high-energy-density batteries can start from many aspects:


In-depth study of the thermal runaway mechanism of power batteries: Understand the phenomenon of uncontrollable rise in battery temperature caused by the exothermic chain reaction of battery cells, and how mechanical, electrical, thermal and other factors are coupled individually or jointly to induce this process. Through extensive experimental exploration, mechanism analysis and safety strategies, the thermal runaway trigger mechanism, evolution model and safety warning mechanism were initially established, laying a theoretical foundation for improving thermal management technology.


Optimize the battery heat dissipation structure: The battery is large and generates a lot of heat during operation. Therefore, a series of processes such as cooling and heat dissipation are required to ensure that the battery performance is fully exerted. Optimizing the heat dissipation structure, such as using air-cooling heat dissipation to take away the heat generated by the power battery through air flowing through the battery surface, or using other advanced heat conduction materials and technologies, can effectively improve heat dissipation efficiency.


Establish a battery heat distribution model: Model and analyze the heat distribution of the power battery to obtain the temperature distribution, so as to more accurately understand the thermal behavior of the battery during operation. Based on model analysis, the cell size can be further optimized and the battery design improved to reduce the temperature difference during battery operation and reduce the risk of thermal runaway.


Implementing a comprehensive thermal management strategy: In addition to the above hardware optimization measures, a comprehensive thermal management strategy also needs to be implemented, including temperature monitoring, early warning systems, thermal isolation technology, etc. These strategies can monitor the temperature status of the battery in real time. Once an abnormality is detected, early warning and response measures will be initiated immediately to prevent battery overheating and system failure.


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