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:
Oct. 29, 2019
Filed:
Apr. 27, 2018
Sumitomo Chemical Company, Limited, Tokyo, JP;
Ichiro Arise, Osaka, JP;
Chikara Murakami, Osaka, JP;
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Abstract
A nonaqueous electrolyte secondary battery insulating porous layer which has an excellent discharge output characteristic is provided. The insulating porous layer is arranged such that an aspect ratio of a projection image of an inorganic filler at a surface of the insulating porous layer is in a range of 1.4 to 4.0 and respective peak intensities Iand Iof any diffraction planes (hkl) and (abc) of the insulating porous layer satisfy the following Formula (1). The peak intensities obtained from the diffraction planes (hkl) and (abc) orthogonal to each other are measured using a wide-angle X-ray diffraction method, and a maximum value of the peak intensity ratio is in a range of 1.5 to 300 when calculated by the following Formula (2):  (1)  (2).