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:
Jul. 22, 2014
Filed:
May. 26, 2011
Mei Cai, Bloomfield Hills, MI (US);
Yunfeng LU, Los Angeles, CA (US);
Zheng Chen, Los Angeles, CA (US);
Mei Cai, Bloomfield Hills, MI (US);
Yunfeng Lu, Los Angeles, CA (US);
Zheng Chen, Los Angeles, CA (US);
GM Global Technology Operations LLC, Detroit, MI (US);
The Regents of The University of California, Oakland, CA (US);
Abstract
Hierarchically porous graphitic carbon particles are prepared by an aerosol process using a aqueous solution of a carbon precursor compound in which different sized particles or clusters of silicon oxide species are dispersed. The aerosol is heated to evaporate the solvent. The solid residue is carbonized and non-carbon species removed to obtain small porous particles of graphitic carbon. The interconnected, different size pores in the small carbon particles make them very useful as electrode materials in electrochemical devices, such as supercapacitors, in which efficient ion transport through the pores or the particles is required.