Evaluation of Cu3N and CuO as Negative Electrode Materials for Sodium Batteries …
Copper(I) nitride, produced by the ammonolysis of copper(II) pivalate at 250 °C, shows a competitive capacity and stable cycling behavior in sodium cells with a NaPF6/ethyl carbonate/diethyl carbonate electrolyte. Ex situ X-ray diffraction studies suggest that this material acts as a conversion electrode, with Cu3N reduced to copper metal, but that …