Ceramic-metal solid electrolytes

Technical Report · Mon Mar 01 04:00:00 EST 1982

OSTI ID:5227557

Lauf, R J; Morgan, C S

The sodium-sulfur battery is a candidate for application to electric vehicles and utility load-leveling. The electrolyte in this battery, ..beta..-Al/sub 2/O/sub 3/, often fails by fracture, which in many cases is initiated by electrolytic degradation. Technology developed at ORNL to produce shock-resistant mechanically tough ..cap alpha..-Al/sub 2/O/sub 3/-based cermets has been extended to include solid electrolytes based on ..beta..-Al/sub 2/O/sub 3/. Compositions examined, ..beta..-Al/sub 2/O/sub 3/-Pt and ..beta..-Al/sub 2/O/sub 3/-Cr, were found to have ionic conductivities comparable to ..beta..-Al/sub 2/O/sub 3/ fabricated in the same way. No special problems with the submicron-size metal inclusions were observed in preliminary tests. This concept is generic and could conceivably be applied to ceramic solid electrolytes in other chemical systems.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5227557
• Report Number(s): ORNL/TM-8154; ON: DE82009034
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360303* -- Composite Materials-- Mechanical Properties-- (-1987)
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CHROMIUM COMPOUNDS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROLYTES
FRACTURE PROPERTIES
MECHANICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PLATINUM COMPOUNDS
SOLID ELECTROLYTES
TRANSITION ELEMENT COMPOUNDS