公开(公告)号：KR1020110080446A

公开(公告)日：2011-07-13

申请号：KR1020100000683

申请日：2010-01-06

Applicant: 서울대학교산학협력단

Inventor： 홍원혁 ,  한동훈 ,  최효석 ,  김민우 ,  김진남 ,  이정중

IPC: H01M8/02 ,  C23C8/26 ,  H01M8/10

CPC classification number: Y02P70/56 ,  H01M8/02 ,  C23C8/26 ,  H01M8/10

Abstract: PURPOSE: A bipolar plate of a fuel cell is provided to ensure strong corrosive resistance and excellent electroconductivity and to improve the lifetime and performance of a fuel cell. CONSTITUTION: A bipolar plate(35,40) of a fuel cell includes 316L stainless steel which has the nitrified surface and corrosion potential of 0.1V or more and 0.15V or less, or 316L stainless steel to which nitrogen of 15% or more and 25% or less based on the total composition ratio is impregnated to the surface thereof. A method for preparing the bipolar plate of the fuel cell comprises a step for nitrifying the surface of a substrate including stainless steel at the temperature of 270°C or more and 330°C or less.

Abstract translation: 目的：提供燃料电池的双极板，以确保强的耐腐蚀性和优异的导电性，并提高燃料电池的寿命和性能。 构成：燃料电池的双极板（35,40）包括316L不锈钢，其具有0.1V以上且0.15V以下的硝化表面和腐蚀电位，或者具有15％以上的氮的316L不锈钢，以及 基于总组成比例将25％以下浸渍到其表面。 制备燃料电池的双极板的方法包括在270℃以上且330℃以下的温度下对含有不锈钢的基板的表面进行硝化的工序。