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Sulfiphilic Nickel Phosphosulfide Enabled Li2 S Impregnation in 3D Graphene Cages for Li-S Batteries
Guangmin Zhou1, Jie Sun1, Yang Jin1
1Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA.
Advanced Materials (Deerfield Beach, Fla.)
|January 31, 2017
Abstract:
A 3D graphene cage with a thin layer of electrodeposited nickel phosphosulfide for Li2S impregnation, using ternary nickel phosphosulphide as a highly conductive coating layer for stabilized polysulfide chemistry, is accomplished by the combination of theoretical and experimental studies. The 3D interconnected graphene cage structure leads to high capacity, good rate capability and excellent cycling stability in a Li2S cathode.
