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:
Aug. 06, 2019
Filed:
Apr. 30, 2013
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Tomohiro Nakano, Toyota, JP;
Satoshi Goto, Toyota, JP;
Tomohide Sumi, Toyota, JP;
Hideki Sano, Kadoma, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
Provided is a nonaqueous electrolyte secondary battery in which the following are housed in a battery case: a nonaqueous electrolyte, a boron atom-containing oxalato complex compound, and an electrode assembly in which a positive electrode having a positive electrode active material and a negative electrode having a negative electrode active material are disposed facing each other. Here, a coat containing boron atoms originating from the oxalato complex compound is formed on the surface of the negative electrode active material, and the amount B(μg/cm) of the boron atom as measured based on inductively coupled plasma-atomic emission spectroscopic analysis and the intensity Bfor a tricoordinate boron atom as measured based on x-ray absorption fine structure analysis satisfy 0.5≤B/B≤1.0.