Importance of thermal stability to lithium-ion battery safety

In today's society, the human science and technology level in high speed development stage, but the process of development will be restricted by the energy crisis, which requires new energy sources. At present Lithium-ion batteries has as an important source of energy used by a wide range of people, both in the field of electronic communications, or in the field of transportation, etc., it plays an extremely important role and has a broad application prospect. The lithium-ion battery has many advantages, such as high specific capacity, long life, green pollution-free, etc. However, in use process, the safety of lithium ion battery, there is some hot issues, and it is affecting it is more widely used in more fields.

The study found that the cause of thermal runaway or even combustion and explosion of lithium-ion batteries is mainly due to the charging of large currents of the battery, or the violent impact or extrusion during use. Therefore, it is very meaningful to study the thermal safety of lithium-ion batteries and analyze the temperature distribution and changes of batteries during charge and discharge. It is of great significance to predict and evaluate the reliability of lithium-ion batteries and control their thermal safety.

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