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US 10,854,896 B2Granted
Coolant purification
AssigneeIntelligent Energy Limited
InventorsMathias Crespy, Pratap Rama, Daniel Ninan
Life of this patent
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Abstract
A fuel cell system comprises an antimicrobial patterned surface. The fuel cell system may comprise a fuel cell stack, a coolant reservoir, and a coolant flow path configured to supply coolant from the coolant reservoir to the fuel cell stack. One or more of the fuel cell stack, the coolant reservoir and the coolant flow path may comprise the antimicrobial patterned surface.
Claims14
A fuel cell system comprising:
- a fuel cell stack;
- a coolant reservoir;
- and
- a coolant flow path configured to supply coolant from the coolant reservoir to the fuel cell stack;
- wherein one or more of the fuel cell stack, the coolant reservoir, and the coolant flow path comprises a patterned surface, wherein the patterned surface is chemically inert and without antimicrobial chemical agents;
- wherein the chemically inert patterned surface has a surface relief with:
- (a) an average roughness factor of between 2 and 30, the average roughness factor determined as a ratio of an actual surface area to a geometric surface area;
- and/or
- (b) microscale corrugations or ridges;
- and/or
- (c) a cellular relief pattern;
- the surface relief being sufficient to interfere with settlement and adhesion of a microbe on the chemically inert patterned surface, thereby rendering the chemically inert patterned surface an antimicrobial patterned surface.
9 more elements
Dependencies are inferred from the claim text.