Bui, Tan Tan Yun, Boseon Darko, Kwabena Shin, Seung Beom Kim, Jaehyun Hong, Jongin Lee, Minah Park, Sung Kyu Kim, Myung-Gil 2024-01-19T15:05:09Z 2024-01-19T15:05:09Z 2021-10-21 2021-03 2196-7350 https://pubs.kist.re.kr/handle/201004/117313 Lithium-rich amorphous Li-La-Zr-O (a-Li-La-Zr-O) electrolyte is successfully synthesized using sol-gel processing method. With unlimited compositions of the amorphous structure, lithium-rich compositions are systematically investigated to determine optimal composition and optimized processing conditions of a-Li-La-Zr-O coatings. There is an improvement in ionic conductivity of a-Li-La-Zr-O with Li content increasing, specifically from 3.0 x 10(-8) S cm(-1) (Li8La2Zr2O11) to 1.18 x 10(-6) S cm(-1) (Li18La2Zr2O16), thereby resulting in low activation energy. The high-ionic-conductivity a-Li-La-Zr-O is implemented as an artificial solid electrolyte interface coating layer on cathode materials. The a-Li-La-Zr-O-coated LiCoO2 (LCO) and LiNi0.8Mn0.1Co0.1O2 (NMC 811) coin cells exhibit better cycling performance than the bare coin cell at the optimum compositional ratio of a-Li-La-Zr-O. A-Li-La-Zr-O can be a promising material for solid electrolyte battery and a potential coating layer for the modification of cathode surface. English WILEY SOLID-STATE ELECTROLYTES GARNET-TYPE LI7LA3ZR2O12 ELECTROCHEMICAL PERFORMANCE SURFACE-CHEMISTRY PARTICLE-SIZE THIN-FILMS BATTERIES STABILITY PROGRESS ORIGIN Solution Processing of Lithium-Rich Amorphous Li-La-Zr-O Ion Conductor and Its Application for Cycling Durability Improvement of LiCoO2 Cathode as Coating Layer Article 10.1002/admi.202001767 1 ADVANCED MATERIALS INTERFACES, v.8, no.5 ADVANCED MATERIALS INTERFACES 8 5 scie scopus 000606807800001 2-s2.0-85099184288 Chemistry, Multidisciplinary Materials Science, Multidisciplinary Chemistry Materials Science Article SOLID-STATE ELECTROLYTES GARNET-TYPE LI7LA3ZR2O12 ELECTROCHEMICAL PERFORMANCE SURFACE-CHEMISTRY PARTICLE-SIZE THIN-FILMS BATTERIES STABILITY PROGRESS ORIGIN a-Li-La-Zr-O amorphous ion-conducting layers cathode coatings lithium-ion batteries solution processing