The present invention relates to a fire safety system for an electric vehicle, and more specifically, to a fire safety system for an electric vehicle, which is capable of mitigating the impact of a lithium ion battery mounted on an electric vehicle that may cause a fire by impact. shock absorbers mounted on automobiles; a battery cell protection device installed to cover and cover a lithium-ion battery mounted on the electric vehicle, and made of a material for preventing overheating of the lithium-ion battery and extinguishing a fire; a controller having a built-in sensor detecting a temperature in the battery cell layer of the lithium-ion battery, and performing preset vehicle driving control for protecting occupants in case of fire based on the temperature detected by the built-in sensor; And, under the control of the controller, the temperature of the lithium-ion battery is characterized in that it comprises a cooling device to maintain the temperature below a preset temperature without overheating more than a preset value. According to the electric vehicle fire safety device system proposed in the present invention, the shock mitigating device mounted on the electric vehicle and the lithium-ion battery mounted on the electric vehicle are covered to mitigate the impact of the lithium-ion battery mounted on the electric vehicle. It is installed to cover the battery cell protection device made of an overheat prevention and fire extinguishing material of the lithium ion battery, and a built-in sensor for detecting the temperature in the battery cell layer of the lithium-ion battery, based on the temperature detected by the built-in sensor A controller that performs preset vehicle driving control to protect occupants in the event of a fire, and a cooling device that maintains the temperature of the lithium-ion battery below a preset temperature without overheating above a preset value under the control of the controller Minimizes the occurrence of fire due to the impact of lithium-ion batteries installed and installed in electric vehicles by including It is possible to ensure the safety of the occupants through the release. In addition, according to the electric vehicle fire safety device system of the present invention, a battery cell protection device covering the lithium ion battery is provided, wherein the battery cell protection device includes a new material layer covered for cooling action and shock prevention, and a fire extinguishing material By including an expanded vermiculite layer made of expanded vermiculite of It is possible to further improve the safety of electric vehicles through the prevention of explosions.
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