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Layered Oxide Cathode for Potassium‐Ion Battery: Recent Progress and Prospective
Author(s) -
Zhang Xinyuan,
Wei Zhixuan,
Dinh Khang Ngoc,
Chen Nan,
Chen Gang,
Du Fei,
Yan Qingyu
Publication year - 2020
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.202002700
Subject(s) - cathode , materials science , nanotechnology , battery (electricity) , oxide , energy storage , scalability , lithium (medication) , electrochemistry , electrochemical energy storage , computer science , electrode , electrical engineering , metallurgy , chemistry , engineering , supercapacitor , power (physics) , medicine , physics , quantum mechanics , database , endocrinology
Rechargeable potassium‐ion batteries (KIBs) have demonstrated great potential as alternative technologies to the currently used lithium‐ion batteries on account of the competitive price and low redox potential of potassium which is advantageous to applications in the smart grid. As the critical component determining the energy density, appropriate cathode materials are of vital need for the realization of KIBs. Layered oxide cathodes are promising candidates for KIBs due to high reversible capacity, appropriate operating potential, and most importantly, facile and easily scalable synthesis. In light of this trend, the recent advancements and progress in layered oxides research for KIBs cathodes, covering material design, structural evolution, and electrochemical performance are comprehensively reviewed. The structure–performance correlation and some effective optimization strategies are also discussed. Furthermore, challenges and prospects of these layered cathodes are included, with the purpose of providing fresh impetus for future development of these materials for advanced energy storage systems.