State Key Laboratory of Solidification Processing; Center for Nano Energy Materials; School of Materials Science and Engineering; Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU); Xi'an 710072 China
Department of Materials Science and Nano Engineering; Rice University; Houston TX 77050 USA
University Research Facility in Materials Characterization and Device Fabrication; The Hong Kong Polytechnic University; Hong Kong 999077 China
Department of Mechanical Engineering; University of Delaware; Newark NJ, DE 19716 USA
In article number 1701471, Keyu Xie, Bingqing Wei, and co‐workers synthesize molybdenum disulfide (MoS2) “roses” grown on reduced graphene oxide sheets (rGO) with a unique nano‐architecture. It displays one of the best electrochemical performances to date as an anode material for nonaqueous K–ion batteries (KIBs), and a combined K+ storage mechanism of intercalation and conversion reaction is revealed. Important insights and understanding of advanced KIBs are provided, opening new opportunities for developing less‐expensive and more efficient next‐generation electrochemical energy storage devices.
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