MULTILAYER ANODE HAVING, IN EACH LAYER, DIFFERENT AMOUNTS OF BINDER AND DIFFERENT ACTIVE MATERIAL GRAIN SIZE, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Title:

MULTILAYER ANODE HAVING, IN EACH LAYER, DIFFERENT AMOUNTS OF BINDER AND DIFFERENT ACTIVE MATERIAL GRAIN SIZE, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Document Type and Number:

WIPO Patent Application WO/2018/070703

Kind Code:

A1

Abstract:

The present invention relates to a multilayer anode and a lithium secondary battery comprising the same, the multilayer anode comprising: a current collector for transferring electrons between an external conductive wire and an anode active material; a first anode mixture layer formed on one surface or both surfaces of the current collector and including a first anode active material and a first binder; and a second anode mixture layer formed on the first anode mixture layer and including a second anode active material, wherein the electrode density of the first anode mixture layer is 0.9 to 2.0 g/cc, and the electrode density of the second anode mixture layer is 0.2 to 1.7 g/cc, which is lower than the electrode density of the first anode mixture layer.

Inventors:

LEE TAEK SOO (KR)
KOO CHANG WAN (KR)
CHOI SANG HOON (KR)
YANG JUNG MIN (KR)
MOON IL JAE (KR)

Application Number:

PCT/KR2017/010692

Publication Date:

April 19, 2018

Filing Date:

September 27, 2017

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

H01M4/13; H01M4/04; H01M4/139; H01M4/36; H01M4/62

Foreign References:

KR20140095980A	2014-08-04
KR20140137660A	2014-12-03
KR20160050283A	2016-05-11
KR20130116038A	2013-10-22
KR20130116026A	2013-10-22

Other References: