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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
(a) Charge–discharge voltage profiles of Li–S cells with FCCS and HC−In in the first, second, and third cycles at a 0.2 C rate; (b,c) cycling performance at 0.5 C and 1 C.