Аннотация:Nanostructure composites Ge-Co-P with brutto-composition CoGe2P0.1, or CoGe2@GePwere manufactured via electrolysis of aqueous electrolyte. Such composites are able to reversibleinsertion of lithium and sodium with specific capacities up to 855 and 425 mAh/g, respectively. Themain advantage of the composites consists in their excellent cycleability.