Patent · US Active

Method of measuring the electroosmotic transport coefficient of a proton exchange membrane and device for implementing such a method

US9250217B2 · kind B2 · utility

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1References

16Claims

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Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Zhe Peng · Beijing, CN
Arnaud Morin · Grenoble, FR

Key dates

Filing date	Jul 7, 2011
Grant date	Feb 2, 2016
Priority date	—
Expiry date	Jan 31, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/50
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method of determining the electroosmotic transport coefficient of a proton exchange membrane, the method including creating a stream of hydrated hydrogen on either side of the membrane which is permanently controlled so that the relative humidity is almost identical on each side of the membrane at any point, thereby making it possible to minimize any back diffusion into the membrane. Furthermore, the method includes estimating the back diffusion flux into the membrane from the rate of return to equilibrium of the relative humidity starting from the moment when the current is cut off.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.