Improvement of Inter-particle Contact in Positive Electrodes Using the Composite Deformable Solid Electrolyte in an Oxide-type All-solid-state Lithium Ion Battery

We evaluated the combined effect of a high-deformation property and the use of a high ionic conductivity solid electrolyte in a non-sintered positive composite electrode. The battery performance of the positive electrode fabricated only by pressing was improved by inter-particle contact due to it being filled with a deformable solid electrolyte between a high ionic conductivity solid electrolyte and a positive active material. The positive composite electrode demonstrated a relatively high capacity of over 145 mAh g−1 at 60 °C.