WOUND-TYPE ACCUMULATOR

摘要

A wound-type accumulator which is simplified in the layout of lithium ion sources and shortened in time spent on injecting a nonprotonic organic solvent electrolytic solution and on predoping, so as to allow quick completion of assembly and obtain high productivity.  The wound-type accumulator is provided with: a cylindrical wound electrode unit which has cathode and anode strips and is configured by winding from one end an electrode stack comprised of a stack of the cathode and anode with a separator disposed therebetween; and an electrolytic solution.  In this wound-type accumulator, the cathode and/or anode is doped with lithium ions and/or anions by means of electrochemical contact of the cathode and/or anode with a lithium ion source.  At the cathode, a cathode gap section is formed, and at least one lithium ion source is arranged at the cathode gap section or at a position opposing the cathode gap section at the anode, in a state not contacting the cathode.