The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 2017
Filed:
Oct. 19, 2010
Jens Paulsen, Daejeon, KR;
Randy DE Palma, Maasmechelen, BE;
Heonpyo Hong, BaekSeokDong, KR;
Kyubo Kim, Jangan-Gu, KR;
Jens Paulsen, Daejeon, KR;
Randy De Palma, Maasmechelen, BE;
HeonPyo Hong, BaekSeokDong, KR;
KyuBo Kim, Jangan-Gu, KR;
Umicore, Brussels, BE;
Abstract
A lithium transition metal oxide powder for use in a rechargeable battery is disclosed, where the surface of the primary particles of said powder is coated with a first inner and a second outer layer, the second outer layer comprising a fluorine-containing polymer, and the first inner layer consisting of a reaction product of the fluorine-containing polymer and the primary particle surface. An example of this reaction product is LiF, where the lithium originates from the primary particles surface. Also as an example, the fluorine-containing polymer is either one of PVDF, PVDF-HFP or PTFE.