Solid electrolytes: Problems and solutions

Journal Article · Fri Aug 01 04:00:00 EDT 1986 · Am. Ceram. Soc. Bull.; (United States)

OSTI ID:7227140

DeJonghe, L C

Degradation phenomena occurring in sodium ..beta..''-alumina solid electrolytes as a consequence of their use in sodium/sulfur batteries are reviewed. Four classes of degradation are discussed: electrolyte reduction, crack propagation, internal sodium precipitation, and reaction with the polysulfide electrode. While degradation reactions may adversely affect cell life, it has been found that these deleterious effects may be avoided by impurity control of the system and by microstructural modification of the ceramic, including grain size control and zirconia-dispersion toughening.

• Research Organization: Lawrence Berkeley Lab., Materials and Molecular Research Div., Berkeley, CA 94720
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 7227140
• Journal Information: Am. Ceram. Soc. Bull.; (United States), Journal Name: Am. Ceram. Soc. Bull.; (United States) Vol. 65:8; ISSN ACSBA
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALI METALS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CERAMICS
CHALCOGENIDES
CHEMICAL REACTIONS
CRACK PROPAGATION
CRYSTAL STRUCTURE
DISPERSION HARDENING
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
ELEMENTS
GRAIN SIZE
HARDENING
IMPURITIES
MATERIALS
METAL-NONMETAL BATTERIES
METALS
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
PRECIPITATION
REDUCTION
SEPARATION PROCESSES
SERVICE LIFE
SIZE
SODIUM
SODIUM-SULFUR BATTERIES
SOLID ELECTROLYTES
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES