| http://www.w3.org/ns/prov#value | - In an attempt to solve problems such as pore closure and aging due to evaporation, U.S. Pat. No. 6,457,657 discloses a method of fabricating a current collector that employs an even mixture of a conductive metal, for example, silver and a metallic oxide, for instance, an 8 percent yttria stabilized zirconia.
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