Accelerated Testing Protocols For Solid Oxide Fuel Cell Cathode Materials
AssigneeUniversity of South Carolina
InventorsXiao-Dong Zhou, Emir Dogdibegovic
Life of this patent
Estimating the term…
Abstract
Accelerated testing protocols that can be utilized for determining and projecting the durability of SOFC cathodes are described. The accelerated testing protocols can be carried out under simulated operation conditions so as to provide in a matter of a few hundred hours data that can correlate to the condition of the cathode following operation of the cell over the course of a typical operation life span of several thousand hours. A testing protocol can include cycling a SOFC from OCV to operating potential at a predetermined current density. Each cycle can be relatively short, for instance less than one minute.
Claims21
An accelerated cathode testing protocol comprising cycling a solid oxide fuel cell multiple times between an open circuit voltage and an operating potential at an operating current density, the operating current density being about 0.15 A/cm2 or greater, each cycle including a first time period at the open circuit voltage and a second time period at the operating potential, wherein the second time period is longer than the first time period.
An accelerated cathode testing protocol comprising cycling a solid oxide fuel cell multiple times between an open circuit voltage and an operating potential at an operating current density, each cycle including a first time period at the open circuit voltage and a second time period at the operating potential, wherein the second time period is about 1 minute or less and the second time period is longer than the first time period.
Dependencies are inferred from the claim text.