Nitrogen-doped conducting (NC) interlayers, derived from waste newspapers, are inserted between a sulfur cathode and a separator to enhance the electrochemical performances of lithium–sulfur (Li–S) batteries. A simple strategy transforms wastes into valuable polysulfide trappers that improve the active-material utilization to 77% and accomplish good cycling stability in Li–S batteries.
C. Chang, S. Chung and A. Manthiram, Sustainable Energy Fuels, 2017, 1, 444 DOI: 10.1039/C7SE00014F
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