Gel composite cathode for solid-state batteries and methods of manufacturing thereof

US11777145B2 · kind B2 · utility

Assignees

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

Inventors

• Michael Edward Badding · Campbell, US
• Mingli Cai · Shanghai, CN
• Jun Jin · Shanghai, CN
• Zhen Song · Beijing, CN
• Zhaoyin Wen · Shanghai, CN
• Tongping Xiu · Shanghai, CN
• Liu Yao · Shanghai, CN

Key dates

• Filing date: Jun 24, 2021
• Grant date: Oct 3, 2023
• Expiry date: Oct 8, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A battery includes a substrate; a composite cathode disposed on the substrate; a solid-state electrolyte disposed on the composite cathode; and a lithium anode disposed on the solid-state electrolyte, such that the composite cathode comprises a gel polymer electrolyte layer and a porous cathode active material layer. A method of forming a cathode for a solid-state battery includes mixing an active cathode material, at least one of a conductive carbon component and an electronic conductive component, and a polymer binder to form a slurry; immersing the slurry in an alcohol reagent to form a porous disc structure by phase conversion; and immersing the porous disc structure in a liquid electrolyte to form the cathode.