P2-和P3-KCoO作为一种电化学钾嵌入主体。
P2- and P3-KCoO as an electrochemical potassium intercalation host.
作者信息
Hironaka Yuya, Kubota Kei, Komaba Shinichi
机构信息
Department of Applied Chemistry, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan.
出版信息
Chem Commun (Camb). 2017 Mar 28;53(26):3693-3696. doi: 10.1039/c7cc00806f.
Reversible and topotactic potassium intercalation of P2- and P3-KCoO electrodes is studied in non-aqueous K cells for the first time. They deliver a highly reversible capacity of 60 mA h g 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-KCoO are compared to those of O2-LiCoO and P2-NaCoO.
首次在非水钾电池中研究了P2-和P3-KCoO电极的可逆和拓扑钾嵌入。它们在2.0-3.9V的电压范围内具有60 mA h g的高度可逆容量，伴随着包括钾/空位有序化在内的可逆相变。将P2-KCoO的电化学性质和结构变化与O2-LiCoO和P2-NaCoO的进行了比较。
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