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Cathode-Supported-Electrolyte Configuration for High-Performance All-Solid-State Lithium–Sulfur Batteries

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journal contribution
posted on 2020-11-18, 21:05 authored by Liu Wang, Xuesong Yin, Chengbin Jin, Chen Lai, Gan Qu, Guangyuan Wesley Zheng
The sluggish conversion reaction of sulfur and poor interfacial contact restrict electrochemical performance and practical application of all-solid-state Li–S batteries. Herein, we present a rational design of cell structure with a cathode-supported-electrolyte configuration to attain high-performance all-solid-state Li–S batteries. A mechanically robust sulfur cathode was constructed, and a slurry-based polymer electrolyte layer was subsequently cast on the cathode to form an intimate interfacial contact. The resulting battery shows a high specific capacity and good cycle performance. As a proof-of-concept, full cells with variable configurations, excellent flexibility, and safety features are demonstrated.