Anion‐Regulated Sulfur Conversion in High‐Content Carbon Layer Confined Sulfur Cathode Maximizes Voltage and Rate Capability of K–S Batteries

Potassium–sulfur (K–S) batteries have attracted attention in large‐scale energy storage systems. Small‐molecule/covalent sulfur (SMCS) can help to avoid the shuttle effect of polysulfide ions via solid–solid sulfur conversion. However, the content of SMCS is relatively low (≤40%), and solid–solid re...

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