LITHIUM ION BATTERY CONTAINING SOLID ELECTROLYTES, IMPROVING ELECTRODE UTILIZATION RATE AND ITS PREPARATION METHOD

摘要

PURPOSE: Provided are solid electrolytes containing soft polymer which are adjacent to the cathode and the anode to improve adherence between the cathode and the anode so that they contribute to reduce interface resistance between cathode or anode and the solid electrolytes. CONSTITUTION: The lithium ion battery comprises the parts of: a cathode or an anode(4, 5) which dopes or eliminates lithium; and solid electrolytes(6) which are placed between the anode and the cathode and are configured in multilayered structure with three or more layers, in which a first polymer is placed at the nearest layer from the cathode and the anode with showing low glass transition point and having no crosslinking functional group and a second polymer is placed at one or more layers except the nearest layer from the cathode and the anode with having the crosslinking functional group.