Dielectric polarization in inverse spinel‐structured Mg2TiO4 coating to suppress oxygen evolution of Li‐rich cathode materials

• Main Authors: Zhang, Wei, Sun, Yonggang, Deng, Huiqiu, Ma, Jianming, Zeng, Yi, Zhu, Zhiqiang, Lv, Zhisheng, Xia, Huarong, Ge, Xiang, Cao, Shengkai, Xiao, Yao, Xi, Shibo, Du, Yonghua, Cao, Anmin, Chen, Xiaodong
• Other Authors: School of Materials Science and Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Materials; Lithium Ion Battery; Interface
• Online Access: https://hdl.handle.net/10356/139020
• Institution: Nanyang Technological University

High‐energy Li‐rich layered cathode materials (≈900 Wh kg−1) suffer from severe capacity and voltage decay during cycling, which is associated with layered‐to‐spinel phase transition and oxygen redox reaction. Current efforts mainly focus on surface modification to suppress this unwanted structural...