NEGATIVE ELECTRODE ACTIVE MATERIAL AND NEGATIVE ELECTRODE COMPRISING SAME FOR ELECTROCHEMICAL DEVICE

Title:

NEGATIVE ELECTRODE ACTIVE MATERIAL AND NEGATIVE ELECTRODE COMPRISING SAME FOR ELECTROCHEMICAL DEVICE

Document Type and Number:

WIPO Patent Application WO/2018/117752

Kind Code:

A1

Abstract:

The present invention relates to a negative electrode active material for an electrochemical device. The negative electrode active material is capable of intercalating or deintercalating lithium, and comprises composite particles comprising silicon (Si), lithium fluoride (LiF), and a carbon material. The composite particles comprise a carbon phase composed of a carbon material and Si-LiF mixed particles dispersed inside the carbon phase, wherein the mixed particles are dispersed in the carbon phase in a homogeneous or inhomogeneous distribution. In addition, the composite particles may be configured in a state in which the carbon phase and the Si-LiF mixed particles are homogeneously or amorphously mixed.

Inventors:

LEE SO-RA (KR)
KWON SEO-YOUNG (KR)
KIM JEE-EUN (KR)
PARK JI-YOUNG (KR)
PARK PIL-KYU (KR)
SONG HYEON-MIN (KR)
YUN KWI-SUB (KR)
YOON U-JIN (KR)
LEE JAE-YOUNG (KR)
LEE YONG-JU (KR)
CHOI JUNG-HYUN (KR)

Application Number:

PCT/KR2017/015390

Publication Date:

June 28, 2018

Filing Date:

December 22, 2017

Export Citation:

Click for automatic bibliography generation Help

Assignee:

LG CHEMICAL LTD (KR)

International Classes:

H01M4/36; H01M4/38; H01M4/58; H01M4/587

Domestic Patent References:

WO2017011594A1

2017-01-19

Foreign References:

KR20140070227A	2014-06-10
KR20160118260A	2016-10-11
US20150155546A1	2015-06-04
JP2011253762A	2011-12-15

Other References: