Optimized cell configurations for stable lscf-based solid...

Details Optimized cell configurations for stable lscf-based solid... Optimized cell configurations for stable lscf-based solid...

H - Electricity

01

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H01M 4/86 (2006.01) H01M 4/88 (2006.01) H01M 8/12 (2006.01)

Patent

CA 2735868

Lanthanum strontium cobalt iron oxides (La(1-x )SrxCoyFe1-yO3-f; (LSCF) have excellent power density ( > 500 mW/cm2 at 750°C). When covered with a metallization layer, LSCF cathodes have demonstrated increased durability and stability. Other modifications, such as the thickening of the cathode, the preparation of the device by utilizing a firing temperature in a designated range, and the use of a pore former paste having designated characteristics and combinations of these features provide a device with enhanced capabilities.

Des oxydes de lanthane-strontium-cobalt-fer (La(I-X )SrxCoyFel-y03- ; (LSCF)) présentent une excellente densité de puissance (> 500 mW/cm2 à 750 °C). Après revêtement par une couche de métallisation, des cathodes en LSCF ont démontré une durabilité et une stabilité accrues. Dautres modifications, telles que lépaississement de la cathode, la préparation du dispositif par lutilisation dune température de cuisson dans une plage définie et lutilisation dune pâte porogène présentant des caractéristiques définies et des combinaisons de ces caractéristiques donnent un dispositif présentant des capacités améliorées.

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