Durable and High-performance Lithium-Ion Battery Anode using Carbon-coated Double-Shell Black Titania

초록

In this study, a carbon-coated double-shell black titania (DS-BT@C) is designed to overcome the intrinsic limitations of conventional titania in the use lithium-ion battery (LIB) anode. The double-shell hollow structure offers sufficient active sites and short ion-diffusion pathways, while conductive carbon coating provides efficient electron transport and mechanical integrity during repeated cycling. Additionally, the introduction of oxygen-deficient sites enhances charge transport, enabling rapid and stable electrochemical processes. This synergistic design achieves both fast kinetics and long-term durability, establishing DS-BT@C as a promising next-generation anode material in LIB. These findings demonstrate the potential of integrated structural and interfacial engineering of black titania for practical energy storage applications. - 본 연구는 2025년도 산업통상자원부 및 산업기술기획평가원(KEIT) 연구비 지원에 의한 연구임(RS-2022-00156073). Keywords: Black titania, Double-shell hollow structure, Carbon coating, Lithium-ion battery anode, Structural and interfacial engineering