A gel-ceramic multi-layer electrolyte for long-life lithium sulfur batteries

Abstract

A newly designed gel-ceramic multi-layer electrolyte has been used as the separator and electrolyte for lithium sulfur (Li–S) batteries. The Li–S cells, free of the shuttle effect, exhibit superior electrochemical performance. With almost no self-discharge, the cell demonstrates an initial discharge specific capacity of up to 725 mA h g⁻¹ and remains at 700 mA h g⁻¹ after 300 cycles at the C/2 rate.