Method for producing a sealed fuel cell

US12407004B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Christian Diessner · Балка Пшехская, DE
• Harald Bauer · Ehningen, DE
• Peter Lindner · Langquaid, DE
• Thomas Betzitza · Tübingen, DE
• Volker Henrichs · Ludwigsburg, DE

Key dates

• Filing date: May 10, 2021
• Grant date: Sep 2, 2025
• Expiry date: Sep 1, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

The invention relates to a method for producing a sealed fuel cell (101) for a fuel cell stack (100), comprising a cathode-side distributor plate (K), an anode-side distributor plate (A) and a membrane electrode unit (MEA), said method comprising the following steps: 1) providing a cathode-side distributor plate (K) and an anode-side distributor plate (A), 2) providing a first film web (B1) for sealing the cathode-side distributor plate (K) and a second film web (B2) for sealing the anode-side distributor plate (A), 3) punching a cathode-side distributor structure (VK) for the cathode-side distributor plate (K) out of the first film web (B1) and an anode-side distributor structure (VA) for the anode-side distributor plate (A) out of the second film web (B2), 4) cutting the first film web (B1) to produce a first seal (D1) for the cathode-side distributor structure (VK) and cutting the second film web (B2) to produce a second seal (D2) for the anode-side distributor structure (VA), 5) placing the first seal (D1) on the cathode-side distributor plate (K) and the second seal (D2) on the anode-side distributor plate (A), 6) heating the cathode-side distributor plate (K) and the anode-si…