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    • 84. 发明授权
    • Composite anode active material, method of preparing the same, and anode and lithium battery containing the material
    • 复合阳极活性材料及其制备方法,以及含有该材料的阳极和锂电池
    • US08148014B2
    • 2012-04-03
    • US12022978
    • 2008-01-30
    • Han-su KimDong-min ImYoung-su Chung
    • Han-su KimDong-min ImYoung-su Chung
    • H01M4/52
    • C22C1/0491C22C1/0433C22C1/1084C22C32/0084H01M4/364H01M4/38H01M4/587
    • A composite anode active material including a transition metal; an intermetallic compound which includes the transition metal as one component and is capable of alloy formation with lithium; and carbon, where both the transition metal and the intermetallic compound have crystallinity, and the transition metal exists in a phase structurally separated from the intermetallic compound capable of alloy formation with lithium, where a content of the transition metal elements as both a metal and a component of the intermetallic compound may be less than 45 wt % based on the total weight of the transition metal and the intermetallic compound capable of alloy formation with lithium. The composite anode active material is a composite anode active material having a new structure, and includes a crystalline intermetallic compound, a crystalline transition metal, and carbon. In addition, an anode and lithium battery prepared using the composite anode active material have excellent charge-discharge characteristics.
    • 包含过渡金属的复合阳极活性材料; 金属间化合物,其包含作为一种组分的过渡金属并且能够与锂形成合金; 和碳,其中过渡金属和金属间化合物都具有结晶性,并且过渡金属存在于与能够与锂形成合金的金属间化合物结构分离的相中,其中过渡金属元素作为金属和 基于过渡金属和能够与锂形成合金的金属间化合物的总重量,金属间化合物的组分可以小于45重量%。 复合负极活性物质是具有新结构的复合负极活性物质,其包含结晶金属间化合物,结晶过渡金属和碳。 此外,使用复合负极活性物质制备的阳极和锂电池具有优异的充放电特性。