The unique chemistry of thiuram polysulfides enables energy dense lithium batteries

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.