US 11,728,501 B2
Fuel cell, fuel cell manufacturing method, and catalyst electrode
Ji Hwan An, Seoul (KR); Jeong Woo Shin, Seoul (KR); Sung Je Lee, Seoul (KR); Seong Kook Oh, Seoul (KR); and Jin Geun Yu, Ansan-si (KR)
Assigned to FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY, Seoul (KR)
Filed by FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY, Seoul (KR)
Filed on May 15, 2020, as Appl. No. 16/875,309.
Claims priority of application No. 10-2019-0057084 (KR), filed on May 15, 2019.
Prior Publication US 2020/0365925 A1, Nov. 19, 2020
Int. Cl. H01M 8/1213 (2016.01); H01M 8/1253 (2016.01); H01M 4/90 (2006.01); H01M 4/92 (2006.01); H01M 4/86 (2006.01)
CPC H01M 8/1213 (2013.01) [H01M 4/9025 (2013.01); H01M 4/92 (2013.01); H01M 8/1253 (2013.01); H01M 4/8657 (2013.01); H01M 2300/0077 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A fuel cell, comprising:
an electrolyte layer;
a base electrode formed on one side of the electrolyte layer; and
a catalyst electrode formed on an opposite side of the electrolyte layer to be separate from the base electrode with the electrolyte layer interposed therebetween,
wherein the catalyst electrode includes:
a first electrode portion that contains platinum (Pt), covers a part of the electrolyte layer, and includes a plurality of electrode columns protruding from a surface of the electrolyte layer; and
a second electrode portion that contains a cerium (Ce) oxide, partially covers a part of a surface of the first electrode portion to form an electrode portion interface in contact with the first electrode portion by only partially covering top surfaces and side surfaces of the electrode columns with Ce oxide such that catalytic reactivity of the Pt is increased at an exposed surface of the first electrode portion.