Pitch carbon-coated lithium sulfide electrode for advanced, lithium-metal free-sulfur batteries
- Authors
- Kim, Junghoon; Hassoun, Jusef; Panero, Stefania; Sun, Yang Kook; Scrosati, Bruno
- Issue Date
- 2011
- Publisher
- Walter de Gruyter GmbH
- Keywords
- Carbon-coated; Cathode; Electrolyte; Ethylene glyme-based; Lithium sulfide; Lithium sulfur battery
- Citation
- Green, v.1, no.5-6, pp.323 - 328
- Indexed
- SCOPUS
- Journal Title
- Green
- Volume
- 1
- Number
- 5-6
- Start Page
- 323
- End Page
- 328
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/28203
- DOI
- 10.1515/GREEN.2011.029
- ISSN
- 1869-876X
- Abstract
- In this work we report the properties and characteristics of a pitch carbon-coated lithium sulfide material. We show that this material behaves as a very promising electrode in liquid glyme-based and in solid poly(ethylene oxide) PEO-based electrolyte lithium cells. Particular relevant is the response obtained in the solid-state configuration where a capacity approaching the theoretical value of the full Li2S conversion process, i.e. 1200 mAh gLi2S-1 is obtained at a C/10 rate with no signature of ohmic polarization. The solid-state cell cycles at a C/3 rate with a stable capacity of 500 mAh gLi2 S-1, i.e., a value about three times higher than that offered by conventional intercalation lithium metal oxide electrodes. This unique performance makes the pitch carbon-coated lithium sulfide electrode a good candidate for the development of high energy density, lithium-metal free-sulfur superbatteries to be addressed to the electric vehicle market.
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