BYD plans to adopt aerogel for all series of electric vehicles, which was previously only used for high-end products.
Aerogel can be used for both vehicle structure and automobile lithium battery, which can effectively solve the thermal insulation problem of lithium iron phosphate battery in low temperature environment and the thermal runaway and diffusion problem of ternary battery in high temperature environment. It is the preferred material for lithium battery thermal insulation.
Aerogel is a kind of solid material with excellent thermal insulation performance, which has special microstructure such as high specific surface area, nano scale holes, low density, etc.
Based on the excellent thermal performance of these structures, they are known to be the solid materials with the lowest thermal conductivity and the lowest density, and have many advantages such as light weight, strong thermal insulation ability, and long service life.
It is widely used in petrochemical industry, aerospace and military industry, building construction, industrial heat insulation, transportation and other fields.
The SiO2 aerogel glass fiber felt composite developed by JSFY Thermal Insulation Material Technology Corporation has a thermal conductivity of less than 0.017W/(m # k) at 25 ℃, which can improve the high temperature resistance of the battery pack to more than 800 ℃.
The high-performance aerogel thermal insulation material developed by the company covers the whole temperature range from ultra-low temperature to ultra-high temperature.
The company has already been a key supplier of mainstream automotive lithium battery manufacturers in China, such as BYD and CATL, and currently mainly provides them with aerogel thermal insulation products for lithium batteries.