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Article Abstract

The development of aqueous potassium-ion batteries is limited by the lack of suitable anode materials. Here, a novel anode material, iron phosphate hydroxide hydrate FePO(OH)(HO), was introduced and synthesized, which delivers considerable reversible capacities of 80 mA h g at 0.05 A g. An aqueous full potassium-ion battery assembled with the KZn(Fe(CN)) cathode exhibits 80% capacity retention after 1000 cycles.

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http://dx.doi.org/10.1039/d2cc01798aDOI Listing

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