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:
Sep. 05, 2023
Filed:
Feb. 22, 2018
Eliiy Power Co., Ltd., Tokyo, JP;
Atsuhiko Minagawa, Shinagawa-ku, JP;
Hideyuki Sugiyama, Shinagawa-ku, JP;
ELIIY POWER CO., LTD., Tokyo, JP;
Abstract
A non-aqueous electrolyte secondary battery of the present invention includes: a positive electrode in which an olivine-type compound is used as a positive electrode active material; a negative electrode in which amorphous-based carbon is used as a negative electrode active material; a separator sandwiched between the positive electrode and the negative electrode; a non-aqueous electrolyte; and a casing which houses the positive electrode, the negative electrode, the separator, and the non-aqueous electrolyte. The positive electrode, the negative electrode, and the non-aqueous electrolyte are configured to satisfy an inequality: (Rn/(Rp+Rn))≤0.54, where Rp is a positive electrode internal resistance attributed to both the positive electrode and a positive electrode reaction during charging of the secondary battery, Rn is a negative electrode internal resistance attributed to both the negative electrode and a negative electrode reaction during charging of the secondary battery, and (Rp+Rn) is an inter-terminal internal resistance of the secondary battery during charging of the secondary battery.