Journal
ACS APPLIED ENERGY MATERIALS
Volume 1, Issue 6, Pages 2373-2377Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.8b00227
Keywords
all-solid-state battery; Li-S battery; composite electrode; electrode fabrication; mechanical and liquid-phase mixing
Funding
- Japan Society for the Promotion of Science [17H06145, 18K14304]
- Grants-in-Aid for Scientific Research [18K14304] Funding Source: KAKEN
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All-solid-state lithium-sulfur batteries were fabricated using composite electrodes incorporating sulfur, carbon replica, and a solid electrolyte. Novel liquid-phase mixing contributed to improving electrochemical properties through solid-electrolyte penetration into the mesopores of the carbon replica. Combined mechanical and liquid-phase mixing realized a solid-state battery with high electrochemical performance comparable to a liquid battery system. A discharge capacity in excess of 1500 mAh g(-1) and a high Coulombic efficiency of about 100% were demonstrated at an applied pressure of 213 MPa. The novel sulfur-electrode fabrication method enhances battery performance, since the ionic conduction pathway in the composite electrode is increased.
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