Startseite Pitch Carbon-coated Lithium Sulfide Electrode for Advanced, Lithium-metal Free-sulfur Batteries
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Pitch Carbon-coated Lithium Sulfide Electrode for Advanced, Lithium-metal Free-sulfur Batteries

  • Junghoon Kim , Jusef Hassoun EMAIL logo , Stefania Panero , Yang-Kook Sun und Bruno Scrosati
Veröffentlicht/Copyright: 1. Dezember 2011
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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 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 , 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.

Received: 2011-08-31
Accepted: 2011-11-12
Published Online: 2011-December
Published in Print: 2011-December

Copyright © 2011 De Gruyter

Heruntergeladen am 8.10.2025 von https://www.degruyterbrill.com/document/doi/10.1515/GREEN.2011.029/html
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