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Thermal characterization of lithium aluminate/alkali carbonate electrolyte structures

Conference ·
OSTI ID:6309864
The thermomechanical behavior and thermal stability of lithium aluminate (LiAlO/sub 2/) and LiAlO/sub 2//Li/sub 2/CO/sub 3/-K/sub 2/CO/sub 3/ mixtures have been studied by thermal analyses. The relationships of the coefficients of linear thermal expansion (..cap alpha../sub t/) of each mixture as a function of volume content of eutectic are presented. The measured transition temperatures of ..cap alpha..- and ..beta..- phases to the ..gamma..-phase of LiAlO/sub 2/ are also presented. In general, the results indicate that ..cap alpha../sub t/ of LiAlO/sub 2//eutectic increases with increasing eutectic content and that additives such as LiOH, Li/sub 2/CO/sub 3/-K/sub 2/CO/sub 3/, and ..gamma..-Al/sub 2/O/sub 3/ can affect the ..cap alpha..- and ..beta..- to ..gamma..-LiAlO/sub 2/ transition temperatures by 100 to 250/sup 0/.
Research Organization:
Argonne National Lab., IL (USA)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
6309864
Report Number(s):
CONF-811014-4; ON: DE83010701
Country of Publication:
United States
Language:
English