Cooling module for a fuel cell

Patent metadata

Field	Value
Publication number	US-2016308226-A1
Application number	US-201615094448-A
Country	US
Kind code	A1
Filing date	Apr 8, 2016
Priority date	Apr 14, 2015
Publication date	Oct 20, 2016
Grant date	—

Abstract

A cooling module ( 2 ) for a fuel cell ( 1 ) including a cooling circuit ( 3 ) for conducting a coolant, and a treatment unit ( 10 ) for the coolant, which is situated in the cooling circuit ( 3 ) in such a way that the coolant flowing in the cooling circuit ( 3 ) flows through it. The treatment unit ( 10 ) includes a filter medium ( 11 ) for removing metal ions from the coolant which includes a polymer having amidoxime and/or hydroxamic acid groups and is in contact with the coolant.

First claim

What is claimed is:

1 . A cooling module for a fuel cell comprising:
a cooling circuit for conducting a coolant; and a treatment unit for the coolant, the treatment unit situated in the cooling circuit in such a way that coolant flowing in the cooling circuit flows through the cooling circuit, the treatment unit includes a filter medium for removing metal ions from the coolant which includes a polymer having amidoxime or hydroxamic acid groups and is in contact with the coolant.

2 . The cooling module as recited in claim 1 wherein the filter medium is a fiber material.

3 . The cooling module as recited in claim 2 wherein the fiber material is a woven fabric, a scrim, a knitted fabric, or a membrane.

4 . The cooling module as recited in claim 1 wherein the filter medium is situated in a flow path of the coolant through the treatment unit in such a way that the coolant flows through the filter medium.

5 . The cooling module as recited in claim 1 wherein the treatment unit includes a cationic or an anionic ion exchanger.

6 . The cooling module as recited in claim 5 wherein the cationic or the anionic ion exchanger includes fibers.

7 . The cooling module as recited in claim 5 wherein the fibers are nonfibers.

8 . The cooling module as recited in claim 5 wherein the treatment unit includes a layer system, the layer system including a first layer containing the filter medium and at least one second layer situated on the first layer and including the cationic or the anionic ion exchanger.

9 . The cooling module as recited in claim 1 wherein the treatment unit includes an optical sensor configured to detect a color change of the filter medium as a function of a load condition.

10 . A fuel cell system comprising:
the cooling module as recited in claim 1 .

11 . A vehicle comprising the fuel cell system as recited in claim 10 .

Assignees

• Volkswagen Ag

Inventors

• Behrendt Reiner Nico
• Andreas-Schott Benno

Classifications

• H01M8/04029

  Heat exchange using liquids · CPC title

• H01M8/04044 Primary

  Purification of heat exchange media · CPC title

• H01M8/1018

  Polymeric electrolyte materials · CPC title

• H01M2250/20

  Fuel cells in motive systems, e.g. vehicle, ship, plane · CPC title

• Y02E60/50

  Fuel cells · CPC title