화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.71, 177-183, March, 2019
DOI10.1016/j.jiec.2018.11.020  Export Citation
Bandgap tuned and oxygen vacant TiO2-x anode materials with enhanced electrochemical properties for lithium ion batteries
Suk Hyun Kang, Yong Nam Jo, K. Prasanna, P. Santhoshkumar, Youn Cheol Joe, Kumaran Vediappan1, Ramasamy Gnanamuthu1, and Chang Woo Lee†
  • Department of Chemical Engineering & Center for the SMART Energy Platform, College of Engineering, Kyung Hee University, 1732 Deogyeong-daero, Gihung, Yongin, Gyeonggi, 17104, South Korea
  • 1SRM Research Institute and Department of Chemistry, SRM Institute of Science and Technology, Kattankuthur, Tamilnadu, 603 203, India
E-mail:
As a promising anode material, TiO2-x is prepared with a low bandgap by adding a zinc powder using a solvothermal reaction. It is homogeneous, spherical, and 30 nm in size, changing from anatase to rutile. It shows a high discharge capacity, 253.8 mAh g-1, after 50 cycles at 100 mA g-1 whereas the pristine TiO2 material delivers mere 81.1 mAh g-1. The improved electrochemical performance with cycling of the TiO2-x compared with the pristine TiO2 material is attributed to the presence of Ti3+and/or oxygen vacancies.
Keywords:Energy materials;Lithium ion batteries;Anodes;Titanium oxide;Energy conversion;Electronic conductivity
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