Inventors:
Shriram Ramanathan - Acton MA, US
Alexander C. Johnson - Boston MA, US
Assignee:
PRESIDENT AND FELLOWS OF HARVARD COLLEGE - Cambridge MA
International Classification:
H01M 8/10
US Classification:
429 13, 429 30, 427115, 429 26
Abstract:
In various aspects, provided are solid oxide fuel cells with an operational temperature of less than about 500° C. that can provide, in various embodiments, a power density of greater than about 0. 1 W/cmand/or have an ionic conductivity of greater than about 0.00001 ohmcm. In various embodiments, provided are solid oxide fuel cells comprising a solid oxide electrolyte layer that is both an electronic and ionic conductor. In various aspects, provided are methods of making solid oxide fuel cells. In various aspects, provided are solid oxide materials comprising a polycrystalline ceramic layer less than about 100 nm thick having a ionic conductivity of greater than about 0.00001 ohmcmat a temperature less than about 500° C.