Engineering Local Graphitic Domains to Balance Defect Active Site and Electronic Conduction Ability in Coal‐Derived Carbon Anode for Superior Potassium Ions Storage
Jiangmin Jiang,
Ziyu Chen,
Yaxin Chen
et al.
Abstract:Potassium‐ion hybrid capacitors (PIHCs) are regarded as one of the promising candidates for large‐scale energy storage technologies. Nevertheless, the lack of suitable anode materials combined with fast ion diffusion kinetics and favorable cycle stability restricts their application. Herein, a catalyst‐confined graphitization strategy is proposed to synthesize low‐cost coal‐based carbon anodes, which have controllable heteroatom co‐doping and rich defect sites, together with local graphitic domains. Density fu… Show more
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