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US 10,256,487 B2Granted
Method of accelerating fuel cell activation
AssigneeHyundai Motor Company
InventorHyun Suk Choo
Life of this patent
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Abstract
A method of accelerating activation of a fuel cell stack includes repeating, a plurality of times, a process including: applying a specific cyclic voltammetric pulse of high current to the fuel cell stack for a designated time and maintaining shutdown of the fuel cell stack.
Claims8
A method of accelerating activation of a fuel cell stack, the method comprising:
- repeating, a plurality of times, a process including steps of:
- applying a specific cyclic voltammetric pulse of high current to the fuel cell stack for a designated time;
- and
- maintaining shutdown of the fuel cell stack,
- wherein the step of maintaining shutdown of the fuel cell stack is carried out by pumping hydrogen to a reaction surface of a cathode of the fuel cell stack for a designated time, and
- wherein, in the step of applying a specific cyclic voltammetric pulse of high current to the fuel cell stack for a designated time, a sweeping speed of the voltammetric pulse at an anodic side is slower than a sweeping speed of the voltammetric pulse at a cathodic side.
3 more elements
Dependencies are inferred from the claim text.