Electrochemical performance of a newly-designed all-solid-state Li ion battery with a LiNi1/3Co1/3Mn1/3O2-LiVO3 mono-particle layered cathode and a lamellar LiVO3 anode

All-solid-state Li ion battery (ASS-LIB) with a LiNi1/3Co1/3Mn1/3O2-LiVO3 mono-particle layered (NCMLVO-MPL) cathode was newly developed by blade coating method with a mixture of NCM and deliquescent-LiVO3 (LVO). The electrode was fabricated by coating the aqueous slurry containing the LiNi1/3Co1/3Mn1/3O2 (NCM) particles and the liquefied LVO on the Al foil and drying it at low temperature below 150 degrees C. By controlling the gap of blade coater, we successfully fabricated mono-particle layered structure, where NCM particles are highly dispersed in the LVO matrix and the thickness was almost same as the diameter of the particles. The ASS-LIB with the NCMLVO-MPL cathode exhibited high discharge retention of 84% after 50 cycles. In the MPL structure, the well-dispersed NCM mono-particles functioned as the ion and electron conductive path in the direction perpendicular to the electrode, which kept charge-discharge capacity during the cycle test. Moreover, the all-solid-state Li ion battery incorporated with the NCMLVO-MPL composite cathode and a lamellar LVO anode was designed, also exhibiting high discharge retention of 92% after 50 cycles. (C) 2017 The Ceramic Society of Japan. All rights reserved.