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:
Feb. 21, 2017
Filed:
Oct. 04, 2012
Hydro-quebec, Montreal, CA;
Sei Corporation, Tsu-shi, JP;
Karim Zaghib, Longueuil, CA;
Abdelbast Guerfi, Brossard, CA;
Pierre Hovington, Boucherville, CA;
Takehiko Sawai, Tsu, JP;
Shinji Saito, Tsu, JP;
Kazunori Urao, Tsu, JP;
HYDRO-QUEBEC, Montreal, CA;
SEI CORPORATION, Tsu, JP;
Abstract
A positive-electrode material for a lithium secondary battery which includes a lithium oxide compound or a complex oxide as reactive substance. The material also includes at least one type of carbon material, and optionally a binder. A first type of carbon material is provided as a coating on the reactive substance particles surface. A second type of carbon material is carbon black. And a third type of carbon material is a fibrous carbon material a mixture of at least two types of fibrous carbon material different in fiber diameter and/or fiber length. Also, a method for preparing the material as well as lithium secondary batteries including the material.