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Core-shell type anode active material for lithium secondary batteries and Method of preparing for the same and Lithium secondary batteries comprising the same
Core-shell type anode active material for lithium secondary batteries and Method of preparing for the same and Lithium secondary batteries comprising the same
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机译:用于锂二次电池的核-壳型负极活性材料及其制备方法和包括该负极活性物质的锂二次电池
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摘要
Provided are a core-shell type anode active material for lithium secondary batteries including a carbonaceous material core; and a shell formed outside the carbonaceous material core, the shell including a PTC (Positive Temperature Coefficient) medium. The core-shell type anode active material for lithium secondary batteries has the shell including the PTC medium, and thus has the improved conductivity and high output density, exhibiting excellent electrical characteristics. And, a lithium secondary battery manufactured using the anode active material has excellent safety, in particular safety against overcharge and external short circuit.
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机译:提供了一种锂二次电池的核壳型负极活性物质,其包括碳质材料核。壳体在碳质材料芯的外侧形成,该壳体包括PTC(Positive Temperature Coefficient,正温度系数)介质。锂二次电池用核-壳型负极活性物质具有包含PTC介质的壳,因此具有改善的导电性和高输出密度,表现出优异的电特性。并且,使用负极活性材料制造的锂二次电池具有优异的安全性,特别是防止过度充电和外部短路的安全性。
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