Citation: Yunhui Huang. Probing Structural Evolution of High-capacity Layered Oxide Cathode[J]. Chinese Journal of Structural Chemistry, ;2022, 41(10): 221000. doi: 10.14102/j.cnki.0254-5861.2022-0164 shu

Probing Structural Evolution of High-capacity Layered Oxide Cathode

Yunhui Huang ^1,,

1.
School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 330074, China

Corresponding author: Yunhui Huang, huangyh@hust.edu.cn
Received Date: 2 July 2022
Accepted Date: 10 July 2022
Available Online: 11 July 2022

Figures(2)

LMR materials contain two structures (i.e., LiTMO₂ and Li₂MnO₃) that exhibit different electrochemical behaviors during charging/discharging. Limited by characterization techniques, this process is difficult to observe. The LiTMO₂ and Li₂MnO₃ domains share a coherent lattice at the nanoscale but exhibit differentiated electrochemical activities due to different redox chemistries. By probing the origin of structural instability, it is suggested that the lattice strain observed not only affects the electrochemical performance of LMR, but also has implication in other layered cathode materials for Li-ion batteries.
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