Synthesis and electrochemical performance of (100-x)Li7P3S11-xLi3SI composite solid electrolyte for all-solid-state lithium batteries

Abstract

In particular, 98Li7P3S11-2Li3SI solid electrolyte based ASSLBs shows the highest capacity, of 110 mA/g at the current density of 7.5 mA g1 (0.05 C). The charge ? discharge cycle stability test also proved the Li3SI mixing to Li7P3S11 helped to maintain the capacity retention value of 100 % after 10 cycles. Therefore, the Li3SI into the Li7P3S11 electrolyte helps improve the electrochemical performance.