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.