智能相变材料破解电池热失控难题

Core Insights - Zhejiang Huangxing Chemical Co., Ltd. has successfully applied phase change materials in lithium batteries for electric tools, addressing heat accumulation issues during fast charging and high discharge rates, with the technology patented [1] - The phase change material helps maintain a stable temperature by absorbing excess heat generated by the battery, which typically exceeds 70 degrees Celsius after 20 minutes of operation, thus extending the operational duration of the battery pack [1] Group 1 - The company has developed organic phase change materials due to their excellent chemical stability, non-toxic nature, and compatibility with battery materials, after rigorous screening of potential base materials [1] - Traditional passive cooling solutions like thermal silicone pads and graphite sheets are insufficient for managing the heat generated by lithium batteries, prompting the company's specialized R&D efforts [1] - The phase change composite material for lithium batteries is expected to achieve mass production by June 2024 [1] Group 2 - The research team has also developed phase change temperature control valves and thermal conductive materials for computer CPUs and GPUs, with products already exported to Europe and the United States [2] - The company plans to increase R&D investment to focus on next-generation smart phase change materials and wide-temperature composite phase change materials to meet global demand for efficient energy storage materials [2]