ELECTRODE MATERIALS COMPRISING A LAYERED OXIDE THAT CONTAINS POTASSIUM AND A METAL, ELECTRODES COMPRISING SAID MATERIALS AND USE THEREOF IN ELECTROCHEMISTRY

Electrode materials comprising an electrochemically active material, in which materials said electrochemically active material comprises a layered oxide that contains potassium and a metal. The layered oxide that contains potassium and a metal may be of formula KxMO2. The invention also relates to electrodes, electrochemical cells and batteries comprising said electrode material. For example, said battery may be a lithium or lithium-ion battery, a sodium or sodium-ion battery, or a potassium or potassium-ion battery. 本发明涉及包含电化学活性材料的电极材料，其中所述电化学活性材料包含含有钾和金属的层状氧化物。所述含有钾和金属的层状氧化物可以具有式KxMO2。本发明也涉及包含所述电极材料的电极、电化学电池和电池组。例如，电池组可以是锂电池或锂离子电池，钠电池或钠离子电池，或者钾电池或钾离子电池。