Porous carbon product and method for producing an electrode for a rechargeable lithium battery

US9212062B2 · kind B2 · utility

Assignee

• HERAEUS QUARZGLAS GMBH & CO. KG · DE

Inventors

• Christian Neumann · Hungen, DE
• Jörg Becker · Florstadt, DE

Key dates

• Filing date: Jun 14, 2012
• Grant date: Dec 15, 2015
• Expiry date: Apr 29, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/48
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A known method for producing a porous carbon body comprises providing a template of inorganic template material which comprises interconnected pores, providing a precursor substance for carbon, infiltrating the pores of the template with the precursor substance, carbonizing the precursor substance and removing the template with formation of the porous carbon product. Starting therefrom, to provide a method which allows a cost-effective production of a porous carbon structure also with thick wall thicknesses, it is suggested according to the invention that precursor substance particles of fusible material and template particles are provided and a powder mixture is formed from the particles, and that the powder mixture is heated before or during carbonization according to method step (d) in such a manner that precursor substance melt penetrates into the pores of the template particles.