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:
May. 05, 2020
Filed:
Jun. 15, 2017
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Daisuke Katou, Kyoto, JP;
Kenichi Hotehama, Osaka, JP;
Abstract
A negative electrode material for a non-aqueous electrolyte secondary battery includes a plurality of composite particles. Each of the plurality of composite particles includes an inorganic particle and a carbonaceous material layer that covers the inorganic particle. The carbonaceous material layer includes a first region having a porosity of 4.7% or more and 34.8% or less, the first region being a region extending from the surface of the inorganic particle to the surface of an imaginary sphere that is centered at the center of the inorganic particle and has a radius of 3r, where r is a radius of the inorganic particle.