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. 20, 2016
Filed:
Mar. 04, 2014
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Machiko Abe, Okazaki, JP;
Masahiro Yoshioka, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Abstract
Provided is a non-aqueous electrolyte secondary battery in which the effect achieved by adding an oxalate complex compound is suitably exhibited and which can achieve battery characteristics during normal usage and resistance to overcharging at high levels. This battery is provided with an electrode body obtained by laminating a positive electrode having a positive electrode active material layer and a negative electrode having a negative electrode active material layer. A coating film which is derived substantially from an oxalate complex compound and which contains boron atoms and/or phosphorus atoms is formed on the negative electrode active material layer. In addition, in the negative electrode active material layer that constitutes the electrode body, the standard deviation (σ) of resistance values, which are measured at a plurality of points at equal intervals in a line direction extending linearly from one prescribed layering surface to the layering surface on the opposite side, is 3.0 to 7.2.