There are no leakage currents in SDC (in 15 sentences)

The OCV(open circuit voltage) using a YSZ electrolyte is 1.15 V at
1073K.
But the OCV using an SDC(samaria doped Ceria) electrolyte is 0.8 V at
1073K.
They said that there are leakage currents in this electrolyte.
If there would be any leakage currents in SDC electrolytes, the OCV
should be changed in every long term experiments.
There are not only ohmic loses, but also polarization voltage losses.
And the polarization voltage losses should be changed.
Because every erectrodes (especially anode) become worse with time. 
There are no perfect electrodes.
But when I used rapidly aggregating anodes, the OCV was constant.
Consequently, there are no leakage currents in samaria doped Ceria.
And I want someone to make sure.

Details are shown in my next homepage.
homepage: http://uk.geocities.com/tom_miya2003