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Updated: Feb 26, 2026
Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
Construction of All-Solid-State Batteries based on a Sulfur-Graphene Composite and Li9.54 Si1.74 P1.44 S11.7 Cl0.3
Ruochen Xu1, Zhang Wu1, Shenzhao Zhang1
1State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.
Abstract:
Herein an effective way for construction of all-solid-state lithium-sulfur batteries (LSBs) with sulfur/reduced graphene oxide (rGO) and Li9.54 Si1.74 P1.44 S11.7 Cl0.3 solid electrolyte is reported. In the composite cathode, the Li9.54 Si1.74 P1.44 S11.7 Cl0.3 powder is homogeneously mixed with the S/rGO composite to enhance the ionic conductivity. Coupled with a metallic Li anode and solid electrolyte, the designed S/rGO-Li9.54 Si1.74 P1.44 S11.7 Cl0.3 composite cathode exhibits a high specific capacity and good cycling stability. A high initial discharge capacity of 969 mAh g-1 is achieved at a current density of 80 mA g-1 at room temperature and the cell retains a reversible capacity of over 827 mAh g-1 after 60 cycles. The enhanced performance is attributed to the intimate contact between the S/rGO and Li9.54 Si1.74 P1.44 S11.7 Cl0.3 electrolyte, and high electrical conductivity of rGO and high ionic conductivity of the solid electrolyte.
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