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Recent Progress of P2‐Type Layered Transition‐Metal Oxide Cathodes for Sodium‐Ion Batteries
Author(s) -
Liu Zhengbo,
Xu Xijun,
Ji Shaomin,
Zeng Liyan,
Zhang Dechao,
Liu Jun
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201905131
Subject(s) - cathode , electrochemistry , oxide , materials science , transition metal , redox , ion , metal , sodium , nanotechnology , inorganic chemistry , chemical engineering , electrode , chemistry , metallurgy , engineering , catalysis , biochemistry , organic chemistry
Sodium‐ion batteries (SIBs) have attracted much attention due to their abundance, easy accessibility, and low cost. All of these advantages make them potential candidates for large‐scale energy storage. The P2‐type layered transition‐metal oxides (Na x TMO 2 ; TM=Mn, Co, Ni, Ti, Fe, V, Cr, and a mixture of multiple elements) exhibit good Na + ion conductivity and structural stability, which make them an excellent choice for the cathode materials of SIBs. Herein, the structural evolution, anionic redox reaction, some challenges, and recent progress of Na x TMO 2 cathodes for SIBs are reviewed and summarized. Moreover, a detailed understanding of the relationship of chemical components, structures, phase compositions, and electrochemical performance is presented. This Review aims to provide a reference for the development of P2‐type layered transition‐metal oxide cathode materials for SIBs.