Nitrogen-doped carbon aerogels for electrical energy storage

US9776156B2 · kind B2 · utility

Assignee

• Lawrence Livermore National Security, LLC · US

Inventors

• Patrick Campbell · Oakland, US
• Elizabeth Montalvo · Oakland, US
• Theodore F. Baumann · Discovery Bay, US
• Juergen Biener · San Leandro, US
• Matthew Merrill · Charlottesville, US
• Eric W. Reed · Ancram, US
• Marcus A. Worsley · Hayward, US

Key dates

• Filing date: Aug 6, 2015
• Grant date: Oct 3, 2017
• Expiry date: Jan 21, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/70
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Disclosed here is a method for making a nitrogen-doped carbon aerogel, comprising: preparing a reaction mixture comprising formaldehyde, at least one nitrogen-containing resorcinol analog, at least one catalyst, and at least one solvent; curing the reaction mixture to produce a wet gel; drying the wet gel to produce a dry gel; and thermally annealing the dry gel to produce the nitrogen-doped carbon aerogel. Also disclosed is a nitrogen-doped carbon aerogel obtained according to the method and a supercapacitor comprising the nitrogen-doped carbon aerogel.