Negative electrode active material for electrical devices

Negative electrode active material for electrical devices

The negative electrode active material for electrical devices according to the present invention comprises an alloy containing more than 25 mass% but less than 54 mass% silicon, more than 1 mass% but less than 47 mass% carbon, more than 13 mass% but less than 69 mass% zinc, with the remainder being...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TANAKA OSAMU, YOSHIDA MASAO, DU BIANXUE
Format: Patent
Sprache:chi ; eng
Schlagworte:
ALLOYS
BASIC ELECTRIC ELEMENTS
CHEMISTRY
ELECTRICITY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:The negative electrode active material for electrical devices according to the present invention comprises an alloy containing more than 25 mass% but less than 54 mass% silicon, more than 1 mass% but less than 47 mass% carbon, more than 13 mass% but less than 69 mass% zinc, with the remainder being made up of inevitable impurities. The negative electrode active material may be obtained using a multi-dimensional magnetron sputtering device, with silicon, carbon and zinc as targets, for example. Electrical devices employing the negative electrode active substance have improved initial charging/discharging efficiency, while maintaining their cycle characteristics.