The unique chemistry of thiuram polysulfides enables energy dense lithium batteries

Amruth Bhargav, Ying Ma, Kollur Shashikala, Yi Cui, Yaroslav Losovyj, Yongzhu Fu
2017 Journal of Materials Chemistry A  
Thiuram-type organopolysulfides show three discharge plateaus and high material utilization (up to 97%) throughout cycling. The mesomeric form of lithium pentamethylene dithiocarbamate with a positive nitrogen center, formed in the discharge, can act as polysulfide and sulfide anchors through strong coulombic interactions thus enabling long cycle life.
doi:10.1039/c7ta07460c fatcat:d5ncdfkclnedlawwfwelb4wc6m