Cathodes for solid-state lithium sulfur batteries and methods of manufacturing thereof

US12034152B2 · kind B2 · utility

Assignees

• CORNING INCORPORATED · US
• SHANGHAI INSTITUTE OF CERAMICS, CHINESE ACADEMY OF SCIENCES · CN

Inventors

• Michael Edward Badding · Campbell, US
• Jun Jin · Shanghai, CN
• Yang Lu · Hefei, CN
• Zhen Song · Beijing, CN
• Zhaoyin Wen · Shanghai, CN
• Tongping Xiu · Shanghai, CN

Key dates

• Filing date: Jun 20, 2019
• Grant date: Jul 9, 2024
• Expiry date: Jun 9, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A cathode for a lithium-sulfur battery includes a sulfur-based composite layer having a porosity in a range of 60% to 99%; and a conductive polymer disposed atop the composite layer and within pores of the composite layer. Moreover, a method of forming a cathode for a lithium-sulfur battery includes providing a substrate; disposing a sulfur-based slurry layer on the substrate; freeze-drying the slurry layer to form a sulfur-based composite layer having a porosity in a range of 60% to 99%; and disposing a conductive polymer atop the composite layer and within pores of the composite layer.