Zinc-iodine battery positive electrode composite material and preparation method and application thereof

Abstract

The invention relates to the technical field of electrochemical energy storage batteries, in particular to a zinc-iodine battery positive electrode composite material as well as a preparation method and application thereof. The zinc-iodine battery positive electrode composite material comprises a chitosan-derived nitrogen self-doped porous carbon material and active iodine, and the chitosan-derived nitrogen self-doped porous carbon material is prepared by taking KOH as a pore-foaming agent and chitosan as a carbon source and a nitrogen source through sol-gel, freeze drying and high-temperature carbonization processes. By introducing the chitosan-derived nitrogen self-doped porous carbon material, the performance of the zinc-iodine battery is remarkably improved.

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