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.

Date of Patent:
Jul. 22, 2025

Filed:

May. 13, 2020
Applicant:

National University of Singapore, Singapore, SG;

Inventors:

Barbaros Oezyilmaz, Singapore, SG;

Jonghak Lee, Singapore, SG;

Clarissa Chui Ling Wong, Singapore, SG;

Cagdas Cetin, Singapore, SG;

Xiao Feng Lim, Singapore, SG;

Yong Kang Ong, Singapore, SG;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 32/05 (2017.01); C01B 32/18 (2017.01); C04B 35/528 (2006.01); C04B 35/64 (2006.01); C04B 38/00 (2006.01); H01G 11/28 (2013.01); H01G 11/36 (2013.01); B22F 3/105 (2006.01);
U.S. Cl.
CPC ...
C01B 32/05 (2017.08); C01B 32/18 (2017.08); C04B 35/528 (2013.01); C04B 35/64 (2013.01); C04B 38/009 (2013.01); H01G 11/28 (2013.01); H01G 11/36 (2013.01); B22F 3/105 (2013.01); C01P 2002/82 (2013.01); C01P 2006/40 (2013.01); C04B 2235/422 (2013.01); C04B 2235/428 (2013.01); C04B 2235/446 (2013.01); C04B 2235/6581 (2013.01); C04B 2235/666 (2013.01);
Abstract

A monolithic carbon foam formed of fused onion-like carbon (OLC) nanoparticles, in which the monolithic carbon foam contains interconnected pores, has a volumetric micropore surface area of 200 m/cc-600 m/cc, and has an electrical conductivity of 20 cm-140 S/cm. Also disclosed are a fractal carbon foam prepared from the monolithic carbon foam, methods of preparing both foams, and supercapacitors constructed therefrom. Specifically, the methods of preparing the foams comprising, inter alia, spark plasma sintering the OLC nanoparticles at a pressure of 30 MPa-1000 MPa and a temperature of 300° C.-800° C. for 2 seconds-30 minutes.


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