Nitrogen-doped Porous Carbon Obtained from Silk Cocoon for High Performance Li-O2 Batteries

摘要

Nitrogen-doped porous carbon obtained from silk cocoon (NCFC) was first used as cathodes for Li-O2 batteries with ionic liquid in this paper. NCFC is made up of irregular bending slices and has a high specific discharge product of most Li-O2 surface area of 2142.0 m2 g~（-1） which means numerous active sites for electrochemical reactions. The results show that NCFC based Li- O2 battery has good cycle stability and high energy efficiency under different current density.