A safe Li–Se battery in an ionic liquid-based electrolyte operating at 25–70 °C by using a N,S,O tri-doped mesoporous carbon host material

A Li–Se battery based on a Se-infused N,S,O tri-doped mesoporous carbon cathode is presented. A compatible and tunable ionic liquid electrolyte is introduced and a safer and thermally stable Li–Se battery that can operate up to 70 °C is demonstrated.