Flow field for fuel cell including graphene foam

[특허 요약] A flow field including graphene foam for a fuel cell. The flow field is made of graphene foam that enhances mass transport and suffers no corrosion under operating conditions of the fuel cell when compared with conventional flow fields. In addition, compressed graphene foam has smaller in-plane pores due to the compression and has more tortuous pathways for flowing reactants, thereby increasing retention time of reactants and accelerating diffusion of reactants into a gas diffusion layer (GDL). Further, large through-plane pores inside the graphene foam transport reactants to entire areas of a catalyst layer, and faster flow velocity compared with the conventional membrane electrode assembly (MEA) is derived from a decreased flow field width due to compression. Therefore, mass transport of reactants and products is enhanced, and performance of the fuel cell is improved at high current density regions.

특허 등록번호

20180145342A

특허 출원번호

201715814916

출원일

2017.11.16

등록일

2018.05.24

국가

미국

출원인

강원대학교산학협력단, 서울대학교산학협력단, 기초과학연구원

발명자

Yung-Eun Sung, Yong-Hun Cho, Ji Eun Park, Chi-Yeong AHN, Sungjun Kim

중요 키워드

flow field, graphene foam, fuel cell, mea, reactants