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:
Jan. 22, 2019
Filed:
Nov. 06, 2015
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Takashi Harayama, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Abstract
Provided is a nonaqueous electrolyte secondary battery including a flat wound electrode body. The flat wound electrode body has a flat portion, a first R portion, and a second R portion. The second R portion is provided on a bottom side of a battery case when a nonaqueous electrolytic solution is put into the battery case at least in a battery construction step. Opposite end portions of the second R portion in the winding axial direction are squashed in a thickness direction of the electrode body to a larger extent than opposite end portions of the first R portion in the winding axial direction.