METHOD FOR INJECTING ELECTROLYTE

摘要

A method for injecting an electrolyte according to the present invention includes: a heating step of heating a case which receives an electrode assembly; and an injecting step of injecting the electrolyte into the case after the heating step. At this time, in the heating step, the case is heated by a high frequency induction heating process using a coil. The coil spirally surrounds the outside of the case in the longitudinal direction of the case.