We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Stabilizing the Oxygen Lattice and Reversible Oxygen Redox Chemistry through Structural Dimensionality in Lithium‐Rich Cathode Oxides.
- Authors
Zhao, Enyue; Li, Qinghao; Meng, Fanqi; Liu, Jue; Wang, Junyang; He, Lunhua; Jiang, Zheng; Zhang, Qinghua; Yu, Xiqian; Gu, Lin; Yang, Wanli; Li, Hong; Wang, Fangwei; Huang, Xuejie
- Abstract
Lattice‐oxygen redox (l‐OR) has become an essential companion to the traditional transition‐metal (TM) redox charge compensation to achieve high capacity in Li‐rich cathode oxides. However, the understanding of l‐OR chemistry remains elusive, and a critical question is the structural effect on the stability of l‐OR reactions. Herein, the coupling between l‐OR and structure dimensionality is studied. We reveal that the evolution of the oxygen‐lattice structure upon l‐OR in Li‐rich TM oxides which have a three‐dimensional (3D)‐disordered cation framework is relatively stable, which is in direct contrast to the clearly distorted oxygen‐lattice framework in Li‐rich oxides which have a two‐dimensional (2D)/3D‐ordered cation structure. Our results highlight the role of structure dimensionality in stabilizing the oxygen lattice in reversible l‐OR, which broadens the horizon for designing high‐energy‐density Li‐rich cathode oxides with stable l‐OR chemistry.
- Subjects
CHEMICAL stability; OXYGEN reduction; OXIDATION-reduction reaction; LITHIUM compounds; CHEMICAL reactions
- Publication
Angewandte Chemie, 2019, Vol 131, Issue 13, p4367
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201900444