US 9,755,240 B2 · Electrode for sodium molten-salt battery and sodium molten-salt battery

Abstract

Provided is an electrode for a sodium molten-salt battery in which degradation of the electrode can be suppressed even when charging and discharging are repeated, and which has excellent cycle characteristics. The electrode for a sodium molten-salt battery includes a current collector and an electrode mixture adhering to a surface of the current collector, in which the electrode mixture includes an electrode active material and a binder containing a polymer, and the polymer does not contain a fluorine atom. The polymer can include, for example, at least one selected from the group consisting of polyamide resins and polyimide resins or at least one selected from the group consisting of acrylic resins, rubber-like polymers, and cellulose derivatives.

Claims2

Dependent claims

A sodium molten-salt battery comprising a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and an electrolyte which has sodium ion conductivity at least at the time of being molten,

wherein the electrolyte contains at least a salt of an anion including a bis(sulfonyl)imide anion and a sodium ion;
the negative electrode includes a negative electrode current collector and a negative electrode mixture adhering to a surface of the negative electrode current collector, the negative electrode mixture including a negative electrode active material and a binder containing a polymer;
and
the polymer does not contain a fluorine atom.

1 more element

Dependencies are inferred from the claim text.

Electrode for sodium molten-salt battery and sodium molten-salt battery

Life of this patent

Electrode for sodium molten-salt battery and sodium molten-salt battery

Life of this patent

Abstract

Claims2