公开(公告)号：US20220393184A1

公开(公告)日：2022-12-08

申请号：US17776235

申请日：2020-11-05

申请人： CARL FREUDENBERG KG

发明人： Achim Bock ,  Kristof Klein ,  Christoph Rakousky ,  Hannes Barsch

IPC分类号： H01M4/88

摘要： A gas diffusion layer for a fuel cell includes: a) a flat, electrically conductive fiber material; and b) a microporous layer on one surface of the fiber material. The gas diffusion layer has, with respect to a base area thereof (in an xy plane), at least one property gradient relating to at least one chemical and/or physical property.