Patent · US Active

Composite made of porous carbon and sulfer-containing active material as well as method for producing same

US10340512B2 · kind B2 · utility

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17Claims

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Assignee

HERAEUS QUARZGLAS GMBH & CO. KG · DE

Inventors

Matthias Otter · Hamm, DE
Jörg Becker · Florstadt, DE
Sascha Pihan · Aschaffenburg, DE
Christian Neumann · Hungen, DE

Key dates

Filing date	May 23, 2017
Grant date	Jul 2, 2019
Priority date	—
Expiry date	May 23, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a composite made of a porous carbon and an active material containing sulphur and to method for producing same. A method for producing a composite made of a porous carbon structure and sulphur is disclosed, said composite being characterized by a high capacitance and a low capacitance loss, when used as an electrode material for a lithium-sulphur secondary battery. According to the invention, a dispersion of carbon powder, an active material containing sulphur and an aqueous medium are treated hydrothermally at a temperature sufficient for melting sulphur. The liquid phase which forms, which contains the melted sulphur and water, infiltrates the pores of the porous carbon.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.