Negative active material for rechargeable lithium battery, method of preparing the same and rechargeable lithium battery including the same

Negative active material for rechargeable lithium battery, method of preparing the same and rechargeable lithium battery including the same

A negative active material for a rechargeable lithium battery wherein the negative active material comprises silicon in an amount of about 40wt% to about 80 wt%, oxygen in an amount of about 10 wt% to about 35 wt% and carbon in an amount of about 5 wt% to about 40 wt% based on an entire weight of th...

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Bibliographische Detailangaben
Hauptverfasser: KIM, JAE-MYUNG, KIM, TAE-SIK, KIM, DEOK-HYUN, JOO, KYU-NAM
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:A negative active material for a rechargeable lithium battery wherein the negative active material comprises silicon in an amount of about 40wt% to about 80 wt%, oxygen in an amount of about 10 wt% to about 35 wt% and carbon in an amount of about 5 wt% to about 40 wt% based on an entire weight of the negative active material, where the active material contains crystalline carbon and crystalline silicon. The negative active material may be used in a rechargeable lithium battery to achieve high capacity and good cycle-life characteristics.