FIELD: electrical industry.
SUBSTANCE: invention relates to the electrical industry, in particular to devices for the direct conversion of chemical energy into electrical energy, and in particular to a sodium-ion battery. An anode of a sodium-ion battery with an increased capacity density is proposed, and its active layer consists of germanium nanofibers deposited on a titanium substrate by cathodic deposition from an aqueous solution. The content of germanium nanofibers is from 0.1 to 0.5 mg/cm2.
EFFECT: increased specific capacity (up to 650 mAh/g) and increased capacity density (up to 0.32 mAh/cm2) of the electrode, stability during cycling.
2 cl, 3 dwg, 1 ex
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