Electrochemical Realization of <scp>3D</scp> Interconnected <scp> MoS ₃ </scp> / <scp>PPy</scp> Nanowire Frameworks as <scp>Sulfur‐Equivalent</scp> Cathode Materials for <scp>Li‐S</scp> Batteries

The development of freestanding and binder-free electrode is an effective approach to perform the inherent capacity active materials promote mechanism study by minimizing interference from additives. Herein, we construct a cathode composed MoS3/PPy nanowires (NWs) deposited on porous nickel foam (NF) (MoS3/PPy/NF) through electrochemical methods, which can work efficiently as sulfur-equivalent material for Li-S batteries. structural stability MoS3/PPy/NF greatly enhanced due its significant tolerance volume expansion MoS3 during lithiation process, ascribe flexible 3D framework PPy NWs, leading superior cycling performance compared bulk-MoS3/NF reference. Eliminating binder carbon additives, evolution chemical electronic structure Mo S species discharge/charge was studied X-ray absorption near-edge spectroscopy (XANES). formation lithium polysulfides excluded driving reaction mechanism, suggesting great potential promising evade shuttle effect present successfully demonstrates importance design enhancing performances revealing corresponding mechanisms.