Design of polymers with an intrinsic disordered framework for Li-ion conducting solid polymer electrolytes

Abstract

Polymers with phosphorus in the main chain with intrinsic disordered framework for lithium-ion conductivity were synthesized. Conductivity of one of the solid polymer electrolytes prepared from those polymers with 40 wt% of LiTFSI was 8.9 × 10-4 S cm-1 at 30 °C and 5.3 × 10-3 S cm-1 at 80 °C. The impressive conductivity is explained by the availability of high conduction pathways provided by frozen chain disorder.