Patent · US Active

Fuel cell membrane electrode assemblies

US11670790B2 · kind B2 · utility

0Cited by

6References

20Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Soo Kim · Cambridge, US
Jonathan Mailoa · Cambridge, US
Timothy Schultz · San Fernando, US
Nathan Craig · Santa Clara, US
Uma Krishnamoorthy · Berkeley, US
Jake CHRISTENSEN · Elk Grove, US

Key dates

Filing date	Nov 25, 2019
Grant date	Jun 6, 2023
Priority date	—
Expiry date	Jul 21, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A fuel cell membrane electrode assembly including a polymer electrolyte membrane (PEM) and first and second electrodes. The PEM is situated between the first and second electrodes. The first electrode includes a first catalyst material layer including a first catalyst material and having first and second surfaces. The first electrode includes first and second material layers adjacent to the first and second surfaces, respectively, of the first catalyst material. The first material layer faces away from the PEM and the second material layer faces the PEM. The first material layer comprises a graphene-based material layer having a number of defects configured to mitigate dissolution of the first catalyst material through the first material layer.

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