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Enhancing the Kinetics of Li‐Rich Cathode Materials through the Pinning Effects of Gradient Surface Na + Doping
Author(s) -
Qing RenPeng,
Shi JiLei,
Xiao DongDong,
Zhang XuDong,
Yin YaXia,
Zhai YunBo,
Gu Lin,
Guo YuGuo
Publication year - 2016
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201501914
Subject(s) - doping , materials science , cathode , faraday efficiency , electrochemistry , kinetics , nanotechnology , surface layer , stability (learning theory) , layer (electronics) , chemical engineering , optoelectronics , chemistry , computer science , electrode , physics , quantum mechanics , machine learning , engineering
Gradient surface Na‐ion doping is realized and demonstrated as an effective strategy to enhance the kinetics of Li‐rich cathode materials. Owing to the pinning effect of Na‐doping in the Li layer, the resultant Li‐rich particles exhibit superior electrochemical performances in terms of specific capacity, Coulombic efficiency, and cycling stability.