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:
Jun. 08, 2021
Filed:
Jan. 11, 2017
Jnc Corporation, Tokyo, JP;
Jnc Petrochemical Corporation, Tokyo, JP;
Yoshihito Takano, Chiba, JP;
Tetsuro Kizaki, Chiba, JP;
Hirotsuna Yamada, Chiba, JP;
Masakazu Kondo, Chiba, JP;
Akira Takahashi, Chiba, JP;
JNC CORPORATION, Tokyo, JP;
JNC PETROCHEMICAL CORPORATION, Tokyo, JP;
Abstract
A silicon nanoparticle-containing hydrogen polysilsesquioxane calcined product to be covered by the invention, represented by general formula SiOH(0.3<x2<1.5, 0.01<y2<0.35), containing 5% by weight to 65% by weight of silicon nanoparticles having a volume-basis mean particle size of more than 10 nanometers and less than 500 nanometers, having a chemical bond between a surface of the silicon nanoparticles and a silicon oxide structure derived from hydrogen polysilsesquioxane, having a Si—H bond, and substantially containing no carbon is silicon oxide applicable to a negative electrode active material for a secondary battery having excellent discharging capacity, initial charging and discharging efficiency and cycle characteristics.