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. 19, 2024
Filed:
May. 28, 2021
Showa Denko K. K., Tokyo, JP;
Takayuki Kurita, Tokyo, JP;
Kohei Akimoto, Tokyo, JP;
Yuji Ito, Tokyo, JP;
Hirofumi Inoue, Tokyo, JP;
Jinseok Baek, Tokyo, JP;
Group14 Technologies, Inc., Woodinville, WA (US);
Abstract
Composite carbon particles including a porous carbon material and a silicon component, the composite carbon particle having an average aspect ratio of 1.25 or less, and a ratio (I/I) of a peak intensity (I) in the vicinity of 470 cmto a peak intensity (I) in the vicinity of 1580 cmas measured by Raman spectroscopy of 0.30 or less, wherein the porous carbon material satisfies V/V>0.80 and V/V<0.10, when a total pore volume at a maximum value of a relative pressure P/Pis defined as Vand Pis a saturated vapor pressure, a cumulative pore volume at a relative pressure P/P=0.1 is defined as V, a cumulative pore volume at a relative pressure P/P=10is defined as Vin a nitrogen adsorption test, and has a BET specific surface area of 800 m/g or more.