For citation:
Aleksandrov K. A., Batalov N. N., Kozlova Z. R., Surikov V. T. Degradation of matrix electrolyte under Molten Carbonate Fuel Cell environment. Electrochemical Energetics, 2007, vol. 7, iss. 1, pp. 21-?. , EDN: JVSEJD
Degradation of matrix electrolyte under Molten Carbonate Fuel Cell environment
The change in phase composition, dispersibility and morphology of ?-, ?- and ?-lithium aluminates, which are the components of molten carbonate fuel cell were investigated after long exposure in Li/KCO3 (62/38 vol.%) eutectic melt under H2, H2 + CO2 (20-mol.%) and 0.33 O2 + 0.67 CO2 atmospheres at 650°C. ?- , ?- , ?- aluminates and their mixtures were found to transform into ?-phase under oxidative atmosphere. Under reducing atmosphere both ?- and ?-phases always coexist. It was also found that degradation processes that is particle enlargement, decrease of specific surface and morphology change proceed at much higher rate in ?- and ?- phases than in ?-LiAlO2.
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