Method and Device for Enhancing Fuel Cell Lifetime
OwnerYong ZHANG, Wei MA +1inventors
InventorsYong ZHANG, Wei MA, Zhigang QI
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OwnerYong ZHANG, Wei MA +1inventors
InventorsYong ZHANG, Wei MA, Zhigang QI
Estimating the term…
A method for enhance lifetime of fuel cells via a device includes a step of creating a H2 environment for a stack, wherein the H2 environment is composed of H2 confined within a gas-tight enclosure of the device. The device includes an enclosure-H2-inlet port, an enclosure-H2-outlet port, a stack-H2-inlet, a stack-H2-outlet, a stack-air-inlet, a stack-air-outlet, a stack-coolant-inlet, and a stack-coolant-outlet. The device prevents air from getting into the stack when the fuel cell system is in the idling or shutdown state. It solves the problems associated with the electrode damage caused by the open circuit voltage in the entire fuel cell non-operational time period and the electrode damage caused by the formation of an air/hydrogen boundary during either the startup or shutdown process. The device eliminates the damages of the open circuit voltage to either MEAs or stacks during their storage time period.
A method to enhance lifetime of fuel cells comprising a step of:
2-21. (canceled)
A device for enhancing lifetime of at least a fuel cell, comprising:
A method for storing MEAs and stacks by creating a H2 environment for the MEAs and stacks during their storage, the H2 environment is composed of H2 confined within a gas-tight enclosure.
A device for storing MEAs and stacks, comprising a gas-tight enclosure for placing the MEAs and the stacks therein;
Dependencies are inferred from the claim text.