Scientists at Nanjing University of Technology have developed a new thermal insulation material for lithium batteries that can withstand temperatures up to 1300 degrees Celsius. Created on the basis of silica aerogel, this development is designed to prevent heat propagation in batteries. This process stops the dangerous chain reaction in which the overheating of one cell causes a fire in the entire battery block. Ixbt.com reports this.
According to the researchers, the new material acts as a high-temperature fire-resistant barrier between cells. During tests, a 2.3 mm thick plate held back temperature on the reverse side below 100 degrees for five minutes under exposure to 1000 degrees of heat. The developers note that this material can maintain thermal protection for up to two hours, which is critically important for stopping the spread of fire in emergency situations.
While previous aerogel solutions worked up to about 300 degrees, the new development has significantly extended the temperature limit. The material also has high flexibility and adapts to the expansion and contraction of batteries during charging and discharging. Specialists managed to reduce the cost of raw materials by more than two times and increase production efficiency.
This technology is expected to be widely used not only in the electric vehicle industry but also in aerospace technology and other fields where thermal safety is critical. Issues of industrial-scale implementation of the project are currently being considered.
Read “Zamin” on Telegram!
