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. 17, 2022
Filed:
Mar. 30, 2017
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Abstract
A negative electrode active material particle including: a silicon compound particle containing a silicon compound that contains oxygen, wherein the silicon compound particle contains a Li compound; and the negative electrode active material particle including aluminum phosphorous composite oxide attached to at least part of the surface, wherein the aluminum phosphorous composite oxide is a composite of POand AlO, and the POand the AlOare in a mass ratio in a range of 1.2<mass of the PO/mass of the AlO<3.0, wherein the negative electrode active material particle including aluminum phosphorous composite oxide has at least one peak in a region of a binding energy of more than 135 eV and 144 eV or less in a P 2p peak shape given in an X-ray photoelectron spectroscopy.