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- Title
Transformation of P<sub>2</sub>S<sub>5</sub> into a Solid Electrolyte with Ionic Conductivity at the Positive Composite Electrode of All-Solid-State Lithium-Sulfur Batteries.
- Authors
Nagata, Hiroshi; Chikusa, Yasuo
- Abstract
Battery performance of an all-solid-state lithium-sulfur (Li-S) cell with a P2S5-based positive composite electrode was investigated in the absence of solid electrolyte at the positive composite electrode. In the positive composite electrode, P2S5 without ionic conductivity was transformed into a solid electrolyte with ionic conductivity by incorporating lithium ions into P2S5 during the first charge-discharge cycle. Therefore, the all-solid-state Li-S cell with P2S5-based positive composite electrode behaved as a secondary battery. This positive composite electrode is very low cost because it did not use an expensive solid electrolyte. In addition to using a cost-effective positive composite electrode with a sulfur content of 60 wt %, the all-solid-state Li-S cell exhibited an extremely high capacity of 1042 mAh g−1 under 6.4 mA cm−2 at 25 °C.
- Subjects
LITHIUM sulfur batteries; SOLID electrolytes; ELECTRODES; PHOSPHORUS compounds; STORAGE batteries
- Publication
Energy Technology, 2014, Vol 2, Issue 9/10, p753
- ISSN
2194-4288
- Publication type
Article
- DOI
10.1002/ente.201402040