An unusual solubility domain for in KOH solution which is consistent with a potential use of periodate as a cathode for alkaline batteries is reported. The solubility of first increases, then drops from with increase from KOH. Periodate exhibits an intrinsic 2e- reduction to . Zn anode alkaline batteries are studied with and cathodes, have a potential of , and discharge to over 95% of the intrinsic capacity. The cathode also exhibits good quasi-reversibility (rechargeability) with an alkaline metal hydride anode.
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Licht et al. (2006) studied this question.
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