Lithium secondary battery, secondary battery module, and secondary battery pack

The present invention relates to a lithium secondary battery comprising: a first cell comprising a first negative electrode, the first negative electrode comprising a (1-1) th negative electrode mixture layer and a (1-2) th negative electrode mixture layer on the (1-1) th negative electrode mixture...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JUNG DA-BIN, KIM HYO-MI, FANG XIANGREN, JANG HWAN-HO, HAN JUN-HEE, KIM MOON-SUNG, RYU SANG BAEK, YUK SEUNG-HYUN, PARK DA HYE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	The present invention relates to a lithium secondary battery comprising: a first cell comprising a first negative electrode, the first negative electrode comprising a (1-1) th negative electrode mixture layer and a (1-2) th negative electrode mixture layer on the (1-1) th negative electrode mixture layer, and a second cell comprising a second negative electrode mixture layer on the (1-2) th negative electrode mixture layer on the (1-2) th negative electrode mixture layer; and a second monomer cell comprising a second negative electrode, the second negative electrode comprising a (2-1) th negative electrode mixture layer and a (2-2) th negative electrode mixture layer on the (2-1) th negative electrode mixture layer, the weight ratio of the silicon-based active material in the (1-2) th negative electrode mixture layer is greater than the weight ratio of the silicon-based active material in the (1-1) th negative electrode mixture layer, and the weight ratio of the silicon-based active material in the (2-2) th n