NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY
First Claim
Patent Images
1. A negative active material for a rechargeable lithium battery, comprising:
- an intermetallic compound of Si and a first metal; and
a metal matrix comprising Cu and Al.
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Abstract
Negative active materials and rechargeable lithium batteries including the negative active materials are provided. The negative active material includes an intermetallic compound of Si and a metal, and a metal matrix including Cu and Al. The negative active material may provide a rechargeable lithium battery having high capacity and excellent cycle-life and cell efficiency.
56 Citations
32 Claims
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1. A negative active material for a rechargeable lithium battery, comprising:
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an intermetallic compound of Si and a first metal; and a metal matrix comprising Cu and Al. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A rechargeable lithium battery comprising:
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a negative electrode comprising a negative active material comprising an intermetallic compound of Si and a first metal, and a metal matrix comprising Cu and Al; a positive electrode comprising a positive active material capable of reversibly intercalating/deintercalating lithium ions; and an electrolyte. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification