Patent · US Active

Bipolar plate and its use, as well as a method for its manufacture and an electrochemical system containing the bipolar plate

US8088535B2 · kind B2 · utility

4Cited by

1References

20Claims

0Family size

Assignee

REINZ-DICHTUNGS-GMBH · DE

Inventors

Stefan Sommer · Ergolding, DE
Bernd Gaugler · Ulm, DE
Claudia Kunz · Ulm, DE
Raimund Strobel · Ulm, DE
Christian Schleier · Sehnde, DE
Joachim Scherer · Ulm, DE

Key dates

Filing date	Mar 29, 2005
Grant date	Jan 3, 2012
Priority date	—
Expiry date	Mar 28, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24537
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present invention relates to a bipolar plate (1) for electrochemical systems which contains a first plate (2) with a first flowfield (2a) for media distribution as well as a second plate (3) with a second flowfield (3a) for media distribution. This first plate in the region of the first flow field at least in regions comprises a plane surface section (4) from which discrete projections (5) distanced to one another project arranged in a distributed manner. Furthermore a method for manufacturing this bipolar plate is suggested as well as an electrochemical system which contains this bipolar plate. According to the invention it is possible in an inexpensive manner to manufacture a bipolar plate which permits the construction of fuel cells functioning with a low peripheral consumption (pumps, compressors) and which are safer with regard to their operation.

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