Internal interface engineering of yolk-shell structure toward fast and robust potassium storage

Yanmei Gan,Lizhong Liu,Qixin Zhang,Jianren Huang,Songjiu Han, Bingbing Chen,Yang Liu,Qiangmin Yu,Lunhui Guan,Tianhua Zhou,Min Han,Yi Zhao, Wei Huang

Energy Storage Materials（2023）

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摘要

•An internal interface engineering of yolk-shell structure is developed to realize fast and stable potassium storage.•The rate capability and cycle stability of Y-S NiS2@C@C composite outperforms most anodes reported so far for PIBs.•Comprehensive theoretical and experimental methods are applied to disclose the effect of internal NiS2/C interface on reaction kinetics and structural stability.

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关键词

Yolk-shell,Interface engineering,NiS2,Anode,Potassium-ion batteries

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