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:
Nov. 28, 2022
Filed:
Mar. 02, 2020
Hydro-quebec, Montreal, CA;
Karim Zaghib, Longueil, CA;
Shinji Saito, Tsu, JP;
Abdelbast Guerfi, Brossard, CA;
Takehiko Sawai, Tsu, JP;
Kazunori Urao, Tsu, JP;
Jun Nakagawa, Tsu, JP;
Francis Barray, Saint-Hyacinthe, CA;
Joel Frechette, Boucherville, CA;
HYDRO-QUEBEC, Montreal, CA;
Abstract
A lithium-ion secondary battery including positive and negative electrodes, a separator element, an electrical conductor element and a binder, wherein the positive electrode includes a lithium-containing metal phosphate compound coated with a carbon material having at least one phase selected from a graphene phase and an amorphous phase, and further includes carbon black and a fibrous carbon material and wherein the negative-electrode material includes a graphite carbon material having at least one carbon phase selected from a graphene phase and an amorphous phase, and further includes carbon black and a fibrous carbon material, and wherein the binder includes a water-soluble synthetic resin or a water-dispersible synthetic resin. The most preferred positive electrode includes LiFePO, The most preferred negative electrode includes artificial graphite or graphitazable powder. The most preferred binder is carboxyl methyl cellulose further including a surface active agent. A method of making the lithium-ion secondary battery.