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, 2022
Filed:
May. 29, 2020
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Kunihiko Hayashi, Anjo, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
Provided is a non-aqueous electrolyte secondary battery in which an increase in temperature, which is caused by a short circuit at an exposed part of an interface between a positive electrode current collector and an insulating layer provided on the positive electrode current collector, is suppressed. The non-aqueous electrolyte secondary battery disclosed here includes a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode includes a positive electrode current collector, a positive electrode active substance layer and an insulating layer. The positive electrode current collector has a part where the positive electrode current collector is exposed at at least one edge thereof. The insulating layer is positioned at a boundary between the positive electrode active substance layer and the part where the positive electrode current collector is exposed. The insulating layer contains an inorganic filler and resin particles at a mass ratio of 75:25 to 25:75. The compressive strength of the resin particles is 74 MPa or less.