Study of Room Temperature Solid Polymer Electrolyte for Lithium Sulfur Battery

Abstract

Natural materials as the basis for solid electrolyte development can sustainably innovate for high-performing batteries. A sucrose based solid polymer electrolyte was developed, displaying high room temperature ionic transport properties, with ionic conductivity of 4.28 × 10-4 S cm-1 and lithium ion transference number of 0.76. Lithium sulfur batteries assembled achieve an initial discharge capacity of 1302.7 mAh g-1 and 644.2 mAh g-1 in the 94th cycle at 25 oC and 0.1C, and 517.5 mAh g-1 in the 200th cycle at 45 oC and 0.2 C. These demonstrate the potential for nature derived materials in green energy innovation.