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:
Dec. 06, 2016
Filed:
Dec. 21, 2012
Yoshinari Makimura, Nisshin, JP;
Tetsuro Kobayashi, Seto, JP;
Hiroki Nagai, Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
A lithium secondary battery () includes a positive electrode active material of lithium transition metal oxide which contains at least a nickel element and a manganese element as transition metals and for which, with respect to a diffraction peak A located at a diffraction angle 20 of 17° to 20° and a diffraction peak B located at a diffraction angle 2Θ of 43° to 46° from X-ray diffraction measurements, when the integrated intensity ratio is R=I/I, the peak intensity ratio is R=H/H, and the ratio between the integrated intensity ratio Rand the peak intensity ratio Ris S=R/R>> the Ssatisfies 1.1≦SF≦2.2.