Sintered solid electrolyte having a high oxygen-ion conductivity

US5709786A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Karl-Hermann Friese · Leonberg, DE
• Werner Gruenwald · Gerlingen, DE

Key dates

• Filing date: Feb 6, 1996
• Grant date: Jan 20, 1998
• Expiry date: Feb 6, 2016

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 sintered layer system, includes an ion-conductive solid electrolyte layer which has a high oxygen ion conductivity and which is comprised of a solid electrolyte material comprising at least one oxide of tetravalent metals and at least one stabilizer oxide; and at least one functional layer which comprises a mixture of the solid electrolyte material and at least one further material, wherein the solid electrolyte material of the ion-conductive solid electrolyte layer and the solid electrolyte material of the at least one functional layer are comprised of nanocrystallites having a mean diameter of <100 nanometers.