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Engineering of Polyanion Type Cathode Materials for Sodium‐Ion Batteries: Toward Higher Energy/Power Density
Author(s) -
Li Huangxu,
Xu Ming,
Zhang Zhian,
Lai Yanqing,
Ma Jianmin
Publication year - 2020
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.202000473
Subject(s) - cathode , materials science , power density , ion , engineering physics , energy density , voltage , nanotechnology , power (physics) , chemical physics , optoelectronics , electrical engineering , chemistry , thermodynamics , engineering , physics , organic chemistry
The development of high energy/power density sodium‐ion batteries (SIBs) is still challenged by the high redox potential of Na/Na + and large radius of Na + ions, thus requiring extensive further improvement to, in particular, enhance the capacity and voltage of cathode materials. Among the various types of cathodes, the polyanion cathodes have emerged as the most pragmatic option due to their outstanding thermostability, unique inductive effect, and flexible structures. In this Review, a critical overview of the design principles and engineering strategies of polyanion cathodes that could have a pivotal role in developing high energy/power density SIBs are presented. Specifically, the engineering of polyanion cathode materials for higher voltage and specific capacity to increase energy density is discussed. The way in which morphology control, architectural design, and electrode processing have been developed to increase power density for SIBs is also analyzed. Finally, the remaining challenges and the future research direction of this field are presented.