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. 08, 2020
Filed:
Dec. 26, 2018
Jnc Corporation, Tokyo, JP;
Jnc Petrochemical Corporation, Tokyo, JP;
Soichiro Sato, Chiba, JP;
Yoshihito Takano, Chiba, JP;
Hirotsuna Yamada, Chiba, JP;
Keiichiro Kanao, Chiba, JP;
Miwako Nishimura, Chiba, JP;
Tetsuro Kizaki, Chiba, JP;
JNC CORPORATION, Tokyo, JP;
JNC PETROCHEMICAL CORPORATION, Tokyo, JP;
Abstract
A composition for a secondary battery negative electrode including a carbonaceous material (a) and a silicon oxide structure (b), wherein the silicon oxide structure (b) includes a silicon oxide framework containing Si and O in its atomic composition and silicon-based nanoparticles that are chemically bonded to the silicon oxide framework as components, wherein the silicon oxide structure (b) is contained in a proportion of 15 mass % or more with respect to a total amount of the carbonaceous material (a) and the silicon oxide structure (b), and wherein the silicon oxide structure (b) satisfies the following conditions (i) to (iii): (i) having an atomic composition represented by a general formula SiOH(0.3<x2<1.5, 0.01<y2<0.35), (ii) having Si—H bonds, and (iii) being essentially free of carbon.