ANODE FOR LITHIUM SECONDARY BATTERY COMPRISING MESH-SHAPED INSULATING LAYER, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Title:

ANODE FOR LITHIUM SECONDARY BATTERY COMPRISING MESH-SHAPED INSULATING LAYER, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Document Type and Number:

WIPO Patent Application WO/2018/062883

Kind Code:

A3

Abstract:

The present invention relates to an anode for a lithium secondary battery comprising a mesh-type insulating layer and a lithium secondary battery comprising the same and, more particularly, to an anode for a lithium secondary battery comprising a mesh-type insulating layer which is formed on one surface of a lithium metal layer and has pores, and a lithium secondary battery comprising the same. A lithium secondary battery to which the anode according to the present invention is applied induces the precipitation and elimination reactions of lithium dendrite inside the pores of the insulating layer to suppress the local formation of the lithium dendrite on a lithium metal surface and form a uniform surface, thereby suppressing a volume expansion of a cell. In addition, the lithium secondary battery forms a support layer on an initially formed passivation film to prevent desorption and collapse of the passivation film, such that an additional side reaction with an electrolyte is suppressed and dead lithium is minimized, thereby improving the lifetime properties of the battery.

Inventors:

YUN HYUNWOONG (KR)
LEE JONGHWA (KR)

Application Number:

PCT/KR2017/010784

Publication Date:

July 12, 2018

Filing Date:

September 28, 2017

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

H01M4/134; H01M10/052; H01M10/42

Foreign References:

KR100582558B1	2006-05-22
KR20070066942A	2007-06-27
KR20160034183A	2016-03-29
KR19990055229A	1999-07-15
KR20140058928A	2014-05-15

Other References: