Negative active material, negative electrode and lithium battery including the negative active material, and method of manufacturing the negative active material

Negative active material, negative electrode and lithium battery including the negative active material, and method of manufacturing the negative active material

A negative active material, a negative electrode, a lithium battery including the negative active material, and a method of manufacturing the negative active material, the negative electrode, and the lithium battery. The negative active material includes a silicon-based alloy including Si, Ti, Ni, a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JEONG, CHANGUI, MATULEVICH, YURY, LEE, CHUNGYOO, KIM, JAEHYUK, SUH, SOONSUNG, PARK, YOHAN, KWON, SEUNGUK, CHU, HEEYOUNG
Format: Patent
Sprache:eng ; fre ; ger
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:A negative active material, a negative electrode, a lithium battery including the negative active material, and a method of manufacturing the negative active material, the negative electrode, and the lithium battery. The negative active material includes a silicon-based alloy including Si, Ti, Ni, and Fe components. The silicon-based alloy includes a Ti 2 Ni phase as an inactive phase and active silicon having a lower content than that of typical silicon-based alloys. The negative active material may improve discharge capacity and lifetime characteristics of lithium batteries.