Choi, Ji-Ae Lee, Seong-Rae Cho, Won-Il Cho, Byung-Won 2024-01-20T16:33:16Z 2024-01-20T16:33:16Z 2021-09-05 2011-08 1598-9623 https://pubs.kist.re.kr/handle/201004/130130 We studied the microstructural and electrochemical properties of Ti-doped Al2O3 (Ti-Al2O3) coated LiCoO2 thin films depending on the Ti composition. The 1.27 at.% Ti-Al2O3 coated films had an amorphous structure with better conductivity than that of pure Al2O3 films. The Ti-Al2O3 coating layer effectively suppressed the dissolution of Co and the formation of lower Li conductivity SEI films at the interface between the LiCoO2 film and electrolyte. The Ti-Al2O3 coating improved the cycling performance and capacity retention at high voltage (4.5 V) of the LiCoO2 films. The Ti-Al2O3 coated LiCoO2 films showed better electrochemical properties than did the pure Al2O3 coated LiCoO2 films. These results were closely related to the enhanced Li-conductivity and interfacial quality of the Ti-Al2O3 film. English KOREAN INST METALS MATERIALS LITHIUM BATTERIES 4.5 V INTERCALATION CATHODE R(3)OVER-BAR-M BEHAVIOR Microstructural and electrochemical properties of Ti-doped Al2O3 coated LiCoO2 films Article 10.1007/s12540-011-0820-x 1 METALS AND MATERIALS INTERNATIONAL, v.17, no.4, pp.649 - 654 METALS AND MATERIALS INTERNATIONAL 17 4 649 654 scie scopus kci ART001609203 000294958900020 2-s2.0-80053177566 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article LITHIUM BATTERIES 4.5 V INTERCALATION CATHODE R(3)OVER-BAR-M BEHAVIOR encrgy storage materials sputtering electrochemistry LiCoO2 TiAlO coating