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Potassium‐ion batteries (PIBs) have broad application prospects in the field of electric energy storage systems because of its abundant K reserves, and similar “rocking chair” operating principle as lithium‐ion batteries (LIBs). Aiming to the large volume expansion and sluggish dynamic behavior of anode materials for storing large sized K‐ion, bismuth telluride (Bi2Te3) nanoplates hierarchically encapsulated...
The investigation of carbonaceous‐based anode materials will promote the fast application of low‐cost potassium‐ion batteries (PIBs). Here a nitrogen and oxygen co‐doped yolk‐shell carbon sphere (NO‐YS‐CS) is constructed as anode material for K‐ion storage. The novel architecture, featuring with developed porous structure and high surface specific area, is beneficial to achieving excellent electrochemical...