Performance and reliability of solid-state lithium polymer secondary battery with Mn-oxide based cathode

摘要

Solid-state lithium polymer batteries with the metallic lithium anode are expected as the next generation batteries because of their high energy density, shape flexibility and no risk for leakage of liquid electrolyte. In this work, the performance and reliability of a solid-state lithium secondary battery which was composed of a lithium metal anode, a 3V Mn-oxide based cathode and PEO based dry polymer electrolyte were investigated. The result of a cycle life test at a 1C [It]mA charge-discharge rate showed that about 60% of the initial capacity was retained even after 1000 cycles.