FIRE SPREAD PREVENTION MATERIAL, BATTERY PACK, AND AUTOMOBILE

[Problem] To provide a fire spread prevention material capable of sufficient fire spread prevention, a battery pack utilizing said fire spread prevention material, and an automobile comprising said battery pack.[Solution] One aspect of the present invention provides a fire spread prevention material. The fire spread prevention material comprises an inorganic fiber base material which includes inorganic fibers, and sodium silicate which is supported on the inorganic fiber base material. The sodium silicate has a water content of 15-35 mass% at 100°C.