AUTHOR=Li Xiang , Zhou Yimiao , Deng Bin , Li Jiani , Xiao Zuowei TITLE=Research progress of biomass carbon materials as anode materials for potassium-ion batteries JOURNAL=Frontiers in Chemistry VOLUME=Volume 11 - 2023 YEAR=2023 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2023.1162909 DOI=10.3389/fchem.2023.1162909 ISSN=2296-2646 ABSTRACT=Biochar materials have attracted people's attention because of their environmental friendliness, abundant resources, and the use of waste resources for reuse. As a potassium ion anode material, biomass char material synthesized by different methods has broad application prospects. However, due to the problems of low initial magnification and limited potassium storage capacity, it is necessary to improve the electrochemical performance through modifications, such as atomic doping. Atomic doping is an effective way to improve battery conductivity and potassium storage. In this paper, the synthesis method of biochar as anode material for potassium ion batteries and the influence of atomic doping on its modification in recent years are reviewed.