METHOD FOR PRODUCING A MEMBRANE ELECTRODE ASSEMBLY

Abstract

The invention relates to a method for producing membrane electrode assemblies (MEA) for fuel cells (101), in particular in a continuous flow path process, comprising the following steps: 1) providing a band-shaped membrane material (M) in a flow path direction (D), e.g. on a roller, such that in particular the membrane material (M) can be unwound from the roller in the flow path process, 2) coating the band-shaped membrane material (M) with an active material (E), 3) cutting the coated membrane material (M) into individual membrane electrode assemblies (MEA), such that the individual membrane electrode assemblies (MEA) are formed with at least one edge region (TR), which is formed so as to be curved and/or angled when viewed in the flow path direction (D).

Description

Claims

1. A method of producing membrane electrode assemblies (MEA) for fuel cells (101), the method comprising the following steps: 1) providing a band-shaped membrane material (M) in a flow path direction (D),2) coating the band-shaped membrane material (M) with an active material (E), and3) cutting the coated membrane material (M) into individual membrane electrode assemblies (MEA) such that the individual membrane electrode assemblies (MEA) are formed with at least one edge region (TR), which is curved and/or angled when viewed in the flow path direction (D).

2. The method according to claim 1, wherein in step 3), the individual membrane electrode assemblies (MEA) are formed with two edge regions (TR), which are curved and/or angled when viewed in the direction of the flow path (D).

3. The method according to claim 2, wherein the two edge regions (TR) are formed so as to be curved and/or angled in the same direction.

4. The method according to claim 2, wherein the two edge regions (TR) are formed so as to be curved and/or angled in opposite directions.

5. The method according to claim 2, wherein the two edge regions (TR) are formed so as to be symmetrical.

6. A method for producing a membrane electrode assembly (MEA) for a fuel cell (101), the method comprising the steps of claim 1.

7. A method for producing a fuel cell system (100) having at least one fuel cell (101) comprising a membrane electrode assembly (MEA), the method for producing a fuel cell system (100) including the method of claim 6.

8. The method according to claim 7, further comprising providing a rectangular housing (102) for the at least one fuel cell (101).

9. The method according to either of the claim 7, wherein when viewed in a stacking direction (R) of the fuel cell system (100), a storage space (A) is configured in order to arrange at least one functional component of the fuel cell system (100).

10. The method according to claim 9, wherein the storage space (A) is configured so as to receive a bearing structure of a current collector.

11. A method for producing a vehicle having at least one fuel cell system (100), the method for producing a vehicle including the method of claim 7.

12. The method according to claim 7, wherein when viewed in a stacking direction (R) of the fuel cell system (100), a trapezoidal storage space (A) is configured in order to arrange at least one functional component of the fuel cell system (100).

13. The method according to claim 9, wherein the storage space (A) is configured so as to receive a bearing structure of a vehicle.

14. The method according to claim 9, wherein the storage space (A) is configured so as to receive a bearing structure of a vehicle in a form-locking manner and/or in a friction-locking manner.