Anomalous metal segregation in lithium-rich material provides design rules for stable cathode in lithium-ion battery
oleh: Ruoqian Lin, Enyuan Hu, Mingjie Liu, Yi Wang, Hao Cheng, Jinpeng Wu, Jin-Cheng Zheng, Qin Wu, Seongmin Bak, Xiao Tong, Rui Zhang, Wanli Yang, Kristin A. Persson, Xiqian Yu, Xiao-Qing Yang, Huolin L. Xin
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2019-04-01 |
Deskripsi
The authors show that after cycling the model cathode material Li2Ru0.5Mn0.5O3 undergoes ruthenium segregation and even exsolution at the reconstructed oxide surface, which triggers a progressive degradation process. The insights enable new dimensions in choosing dopants for stabilized cathode surface.