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:
Jun. 27, 2017
Filed:
Apr. 04, 2013
Nathalie Delpuech, Didcot, GB;
Driss Mazouzi, Nantes, FR;
Bernard Lestriez, Nantes, FR;
Dominique Guyomard, Sautron, FR;
Lionel Roue, Quebéc, CA;
Nathalie Delpuech, Didcot, GB;
Driss Mazouzi, Nantes, FR;
Bernard Lestriez, Nantes, FR;
Dominique Guyomard, Sautron, FR;
Lionel Roue, Quebéc, CA;
Umicore, Brussels, BE;
Centre National de la Recherche Scientifique, Paris, FR;
Institut National de la Recherche Scientifique, Quebec, CA;
Umicore Korea Ltd., Chunan, KR;
Abstract
A rechargeable battery comprising a positive electrode, a negative electrode and an electrolyte, wherein: —the electrolyte comprises a SEI film-forming agent, and—the negative electrode comprises a micrometric Si based active material, a polymeric binder material and a conductive agent, wherein at least part of the surface of the Si based active material consists of Si—OCO—R groups, Si being part of the active material, and R being the polymeric chain of the binder material.