All‐Solid‐State Lithium Thin‐Film Rechargeable Battery with Lithium Manganese Oxide

Abstract

All‐solid‐state rechargeable thin‐film batteries were fabricated with the cell structure of Li / Lipon / LiMn 2 O 4 using sequential thin‐ film deposition techniques. Room‐temperature cycling of these cells showed a nearly constant potential of 4.0 V , good coulombic efficiency, and the capability of carrying high current density. Planar microbatteries were connected in series through metallization. High voltages of approximately 32 V could be realized by serial connection of eight unit cells. ©1999 The Electrochemical Society