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Metallic Bi, as an alloying‐type anode material, has demonstrated tremendous potential for practical application of potassium‐ion batteries. However, the giant volume expansion, severe structure pulverization, and sluggish dynamics of Bi‐based materials result in unsatisfied rate performance and unstable cycling stability. Here, 2D bismuth@N‐doped carbon sheets with BiOC bond and internal void space...
Potassium‐Ion Storage
In article number 2203976, Songping Wu, Zhiguang Xu, Yurong Yan, and co‐workers successfully fabricate 2D bismuth@N‐doped carbon sheets with a powerful BiOC bond and internal void space for achieving ultrahigh rate and stable potassium‐ion storage. The influence of interface microstructure and chemical coupling on the electrochemical properties are revealed by ex/in‐situ techniques...
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