WATER-BASED CATHODE SLURRY FOR A LITHIUM ION BATTERY

Title:

WATER-BASED CATHODE SLURRY FOR A LITHIUM ION BATTERY

Document Type and Number:

WIPO Patent Application WO/2015/036882

Kind Code:

A3

Abstract:

A water-based lithium ion battery cathode slurry comprising a cathode active material comprising a lithium transition metal oxide powder wherein the lithium transition metal oxide powder consists of agglomerates of primary particles, the primary particles comprising a coating layer comprising a polymer is proposed. The polymer is preferably a fluorine-containing polymer comprising at least 50 wt% of fluorine. The coating layer preferably comprises a first inner and a second outer coating layer, the second outer layer comprising the fluorine-containing polymer, and the first inner layer consisting of a reaction product of the fluorine-containing polymer and the surface of the primary particles. The reaction product preferably comprises LiF.

Inventors:

PAULSEN JENS (KR)
HONG HEONPYO (KR)
AHN HYO SUN (KR)

Application Number:

PCT/IB2014/064018

Publication Date:

June 11, 2015

Filing Date:

August 22, 2014

Export Citation:

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Assignee:

UMICORE NV (BE)
UMICORE KOREA LTD (KR)

International Classes:

H01M4/48; H01M4/13; H01M4/505; H01M4/525; H01M4/58; H01M4/62

Domestic Patent References:

WO2012111116A1	2012-08-23
WO2013010936A1	2013-01-24

Foreign References:

US20120270104A1	2012-10-25
KR20130084362A	2013-07-25
JP2012009268A	2012-01-12

Other References: