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:
Nov. 24, 2020
Filed:
Jul. 06, 2016
Jnc Corporation, Tokyo, JP;
Jnc Petrochemical Corporation, Tokyo, JP;
Keizo Iwatani, Chiba, JP;
Tetsuro Kizaki, Chiba, JP;
Yoshihito Takano, Chiba, JP;
Masakazu Kondo, Chiba, JP;
JNC CORPORATION, Tokyo, JP;
JNC PETROCHEMICAL CORPORATION, Tokyo, JP;
Abstract
A negative electrode active material for the lithium ion secondary battery contains silicon oxide that is obtained by heat-treating, under an inert gas atmosphere, a hydrogen silsesquioxane polymer (HPSQ) obtained by allowing hydrolysis of a silicon compound represented by formula (1) and then a condensation reaction of the resulting material, contains Si, O and H, and has, in an infrared spectrum, a ratio (I/I) in the range of 0.01 to 0.35 with regard to intensity (I) of peak 1 at 820 to 920 cmdue to a Si—H bond to intensity (I) of peak 2 at 1000 to 1200 cmdue to a Si—O—Si bond, and is represented by general formula SiOH(1<x<1.8, 0.01<y<0.4): HSi(R)(1), in which R is groups selected from hydrogen, alkoxy having 1 to 10 carbons and the like.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile