Battery heating piece

The application discloses battery heating piece includes: the silica gel substrate, the electric heat film element is located on the silica gel substrate for provide the heat, the temperature monitoring component is located on the silica gel substrate, be used for the monitoring battery heating piece's temperature, and the thin electrically -insulating layer piece, be located the electric heat film element with the upper and lower both sides of temperature monitoring component, wherein, it has a plurality of diffusion holes to open on the silica gel substrate, the electric heat film element with the temperature monitoring component centers on the diffusion hole is tortuous to be extended. The utility model provides a battery heating piece has the heating function concurrently and to the real -time supervision function of electric core temperature, can guarantee the normal work of battery under low temperature, also can timely feedback heating plate inefficacy temperature exceed temperature information and ele