Pesearch Paper / Electronic , Magnetic & Optical Matrials : Electrochemical Characteristics of Integrated Lithium Manganese Oxide Thin Film Battery
박영신Young Shin Park,주승기Seung Ki Joo
Abstract
All-solid-state rechargeable thin film batteries were fabricated with the cell structure of Li/Lipon/LiMn₂O₄ by using of sequential thin film deposition techniques. Planar type multi-microbatteries were realized by connecting eight cells in parallel and in series via planar metalization. In the parallel connected thin film batteries, the discharge capacity was increased linearly depending on the number of unit cell. From the investigation of discharge current density effects on discharge curves of thin film batteries connected in parallel, the rate capability was greatly improved due to the increase of lithium intercalations kinetics for charge transfer. In the serially-connected thin film batteries, the output voltage as high as approximately 32 V was obtained by the serial connection of eight unit cells.