3D Interconnected Electrode Materials with Ultrahigh Areal Sulfur Loading for Li–S Batteries

Abstract
Sulfur electrodes based on a 3D integrated hollow carbon fiber foam (HCFF) are synthesized with high sulfur loadings of 6.2–21.2 mg cm−2. Benefiting from the high electrolyte absorbability of the HCFF and the multiple conductive channels, the obtained electrode demonstrates excellent cycling stability and a high areal capacity of 23.32 mAh cm−2, showing great promise in commercially viable Li–S batteries.
Funding Information
  • Ministry of Science and Technology of China (2011CB932601, 2011CB932604, 2014CB932402)
  • NSFC (51521091, 51525206, 51172239, 51372253, U1401243)
  • Key Research Program of the Chinese Academy of Sciences (KGZD-EW-T06)