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Issue 26, 2017
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P2- and P3-KxCoO2 as an electrochemical potassium intercalation host

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Abstract

Reversible and topotactic potassium intercalation of P2- and P3-KxCoO2 electrodes is studied in non-aqueous K cells for the first time. They deliver a highly reversible capacity of 60 mA h g−1 in the voltage range 2.0–3.9 V accompanied by reversible phase transitions including potassium/vacancy orderings. The electrochemical properties and structural change of P2-KxCoO2 are compared to those of O2-LixCoO2 and P2-NaxCoO2.

Graphical abstract: P2- and P3-KxCoO2 as an electrochemical potassium intercalation host

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Publication details

The article was received on 30 Jan 2017, accepted on 06 Mar 2017 and first published on 07 Mar 2017


Article type: Communication
DOI: 10.1039/C7CC00806F
Citation: Chem. Commun., 2017,53, 3693-3696
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    P2- and P3-KxCoO2 as an electrochemical potassium intercalation host

    Y. Hironaka, K. Kubota and S. Komaba, Chem. Commun., 2017, 53, 3693
    DOI: 10.1039/C7CC00806F

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