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Potassium ion batteries (PIBs) are booming during the past decade due to their abundant resources and potentially high operation voltage. Meanwhile, the sustainability and environmental friendliness features of organic materials make them ideal electrode candidates for developing low-cost and sustainable PIBs. To approach better potassium-organic batteries, it is crucial to design organic electrodes with high energy density, fast rate capability, and long cycling stability. This review aims to screen the effective strategies, including molecular structure design, electrode materials modification, and electrolyte engineering, to strengthen the previously mentioned performance of organic electrodes for PIBs. Finally, this review provides the future research prospects and outlooks for designing better organic electrodes for potassium ion batteries.
Hu et al. (Thu,) studied this question.