Encapsulating a high content of iodine into an active graphene substrate as a cathode material for high-rate lithium–iodine batteries

Abstract

Iodine-active graphene composites as cathode materials for rechargeable Li–I₂ batteries are fabricated. Soluble iodine redox species can be confined in the porous active graphene substrate, making the composites promising materials for high-rate energy storage devices.