Eunbyoul Lee, Heejun Kim, Hamin Choi, Se Young Kim and Kyung Yoon Chung
Chem. Commun., 2024,60, 14834-14837
DOI:
10.1039/D4CC04476B,
Communication
We reveal the reversible redox mechanism of Li6PS5Cl in composite cathodes for practical all-solid-state lithium–sulfur batteries. The limited electrochemical reactivity of the non-conducting sulfur-based active material induces the formation of Li6PS5Cl decomposition products, which allows the recrystallization of Li6PS5Cl through a reversible redox process, contributing to the composite cathode capacity.