| abstract |
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery heater, a battery system including the battery heater, and a method of manufacturing the same, and is intended for use in heating a lithium battery that requires a large amount of heat at a low voltage and a large area instantaneously. The present invention relates to a method of manufacturing an electrode wiring board, which comprises a base substrate having an insulating property, an electrode wiring pattern formed on both sides of the base substrate, an insulating layer formed on both surfaces of the base substrate, And a plurality of planar heating elements formed to be electrically connected to the pattern, wherein the plurality of planar heating elements are uniformly formed on both sides of the base substrate. |