|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||429/034; 429/038; 428/627; 428/632|
|우선권정보||DE-100 17 200(2000-04-06)|
|§371/§102 date||20021113 (20021113)|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 3 인용 특허 : 3|
The invention relates to a metal bipolar plate for a fuel cell, provided with a low-ohmic chemically stable coating. According to the invention, said coating is a multi-phase coating, at least in the region of the contacting outer surface thereof. One phase is a metal phase and/or α phase belonging thereto and another phase is a compound phase consisting of one or several metals of the metal phase and one of the elements N,O,C,B.
What is claimed is: 1. A fuel cell comprising: a metal bipolar plate; and a layer coating the plate, the layer having a contacting external surface and having a plurality of phases at least in a region of the contacting external surface, a first phase being a metallic phase and/or an associated α-phase of the metallic phase, and second phase being a compound phase including one or more metals of the metallic phase and one of the elements N, O, C and B, wherein the layer has a surface resistance lower than about 20 mΩ/cm2. 2. The fuel cell o...