Electrochemical Lithiation of Covalently Bonded Sulfur in Vulcanized Polyisoprene
By Fu, Chengyin; Li, Guanghui; Zhang, Jian; Cornejo, Benjamin; Piao, Sophie S.; Bozhilov, Krassimir N.; Haddon, Robert C.; Guo, Juchen
Published in ACS Energy Letters
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2016
Abstract
We report the synthesis of vulcanized polyisoprene (SPIP) nanowires and an investigation of the electrochemical lithiation mechanism of the covalently bonded sulfur bridges in SPIP. Electrochemical analysis demonstrates that the sulfur chains in SPIP have distinct electrochemical signatures from those that are characteristic of bulk elemental sulfur. The cyclic voltammetry and galvanostatic cycling data show a distinct multistep charge-transfer process and solid-state lithium
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