Do you know any solutions for thermal runaway of lithium-ion batteries?

In view of the thermal runaway of lithium-ion batteries, the current domestic mainstream solutions are mainly improved from two aspects: external protection and internal improvement. External protection refers to the upgrade and improvement of the system, and internal improvement refers to the improvement of the battery itself. (1) The improvement of cooling method. The thermal management system is mainly responsible for controlling the temperature and ensuring that the battery is always at a reasonable operating temperature. Generally, the thermal management system is controlled by the vehicle controller. When the temperature of the battery pack is abnormal, the air-conditioning system is used to conduct timely heat dissipation or heating to ensure the safety and life of the battery. The heat dissipation method of the battery is divided into four categories according to the heat conduction method and the medium: air cooling (air cooling), liquid cooling (water cooling), phase change material (solid), and combined cooling (air cooling/water cooling + solid cooling). Kind. (2) Improvement of internal materials and structure. Internal improvement is to transform the internal material structure of the cell, so that the lithium-ion battery has better heat resistance and heat dissipation performance. In terms of current research hotspots, the development of solid electrolytes; structural transformation of the positive and negative electrodes; and the introduction of safer separator materials are one of the mainstream methods to improve the thermal performance of the battery from the inside. Recently, researchers at the University of Texas at Dallas may have found a way to solve the problem of thermal runaway (that is, excessive heat accumulation) of lithium-ion batteries. The research team said that after solving the problem of battery overheating, the battery capacity can be increased by 20%- At the same time, it can reduce the probability of battery fire and explosion. This discovery may change the way manufacturers produce batteries. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the reasons for the important bulging of lithium-ion battery pack electric vehicles?