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Negative Electrode for Lithium Secondary Battery and Method of Manufacturing Same

发明专利审中
13权利要求 · 2 独立
§ Ⅰ

卷宗概要

发明人

Jong Su Yoon; Jin Ho Cho; Taek Soo Lee

IPC 分类

H1M 4/587H1M 4/2H1M 4/4H1M 4/36H1M 4/525H1M 10/52H1M 10/583

CPC 分类

H1M4/587H1M4/404H1M4/366H1M4/525H1M10/52H1M10/583H1M2004/21

A negative electrode for lithium secondary battery includes a negative electrode current collector, a first negative electrode active layer, and a second negative electrode active layer. The first negative electrode active layer is provided on at least one side of the negative electrode current collector and has a first carbon-based negative electrode active material. The second negative electrode active layer is provided on the first negative electrode active layer and includes a second carbon-based negative electrode active material and a silicon-based negative electrode active material. The second negative electrode active layer has an alignment (O.I) of the carbon-based negative electrode active material according to Equation 1 of 2.5 or less and satisfies Equation 2 being 8 or less. A manufacturing method including the same is also provided.

原文(中文)

A negative electrode for lithium secondary battery includes a negative electrode current collector, a first negative electrode active layer, and a second negative electrode active layer. The first negative electrode active layer is provided on at least one side of the negative electrode current collector and has a first carbon-based negative electrode active material. The second negative electrode active layer is provided on the first negative electrode active layer and includes a second carbon-based negative electrode active material and a silicon-based negative electrode active material. The second negative electrode active layer has an alignment (O.I) of the carbon-based negative electrode active material according to Equation 1 of 2.5 or less and satisfies Equation 2 being 8 or less. A manufacturing method including the same is also provided.