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US09306216B2 Negative active material, method of preparing the same, negative electrode for lithium secondary battery including negative active material, and lithium secondary battery including negative electrode 有权
负极活性物质，其制备方法，包括负极活性物质的锂二次电池用负极和含有负极的锂二次电池

Negative active material, method of preparing the same, negative electrode for lithium secondary battery including negative active material, and lithium secondary battery including negative electrode
Abstract:
A negative active material for a rechargeable lithium battery includes a Si—Al—Fe alloy represented by Formula 1. The Si—Al—Fe alloy includes a Si phase and an alloy phase, and the alloy phase includes Si, Al, and Fe in a ratio of atomic percentages of about 3:3:2: xSi-yAl-zFe  Formula 1 wherein 50 at %≦x≦90 at %, 5 at %≦y≦30 at %, 5 at %≦z≦30 at %, and x+y+z=100 at %.
Abstract(Chinese):

用于可再充电锂电池的负极活性材料包括由式1表示的Si-Al-Fe合金.Si-Al-Fe合金包括Si相和合金相，并且合金相包括Si，Al和Fe 原子百分比为约3：3：2：xSi-yAl-zFe配方1，其中50原子％＆amp; NlE; x和nlE; 90原子％，5原子％和nlE; y和nlE; 30原子％，5原子％ 30原子％，x + y + z = 100原子％。

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