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公开(公告)号：KR100480969B1
公开(公告)日：2005-04-14
申请号：KR1020030014843
申请日：2003-03-10
Applicant: 한국에너지기술연구원
IPC: H01M4/90
Abstract: 본 발명은 일산화탄소의 운동직경 보다 작은 기공들을 형성시킨 다공성 구조의 탄소 물질을 지지체로 사용하여 활성 금속과 일산화탄소의 접촉 확률을 감소시킴으로써, 일산화탄소에 의한 연료전지의 성능 저하 현상을 감소시킨 연료전지용 전극촉매에 관한 것이다.
본 발명의 전극촉매는, 평균 직경이 2∼15nm이며 내부로부터 외표면으로 개방된 다수의 기공들이 형성되어 기공들의 전체 부피가 0.4∼2.0 m
3 /g이고 기공 내면을 포함한 전체 표면적이 200∼2,500 m
2 /g인 다공성 지지체 20∼90 중량부에, 백금 20∼95원자%와 Ru, Sn, Os, Rh, Ir, Pd, V, Cr, Co, Ni, Fe, Mn 중의 하나 5∼80원자%가 합금된 활성 금속 10∼80중량부가 흡착된 것으로 상기 범위의 평균 직경을 갖는 다공성 지지체를 사용함에 본 발명의 기술적 특징이 있다.
본 발명의 전극촉매는 일산화탄소와 기공 내면에 흡착된 활성 금속 사이의 근본적인 접촉이 방지됨으로써 일산화탄소에 의한 성능 저하가 최소화되며, 그에 따라 연료 공급 문제가 해소되는 장점이 있다.-
公开(公告)号：KR1020040080010A
公开(公告)日：2004-09-18
申请号：KR1020030014843
申请日：2003-03-10
Applicant: 한국에너지기술연구원
IPC: H01M4/90
Abstract: PURPOSE: An electrode catalyst for a fuel cell is provided, to reduce the contact probability between carbon monoxide and an active metal by using a porous supporter having pores whose diameter is smaller than the kinetic diameter of carbon monoxide, thereby reducing the poisoning of carbon monoxide. CONSTITUTION: The electrode catalyst comprises an active metal(21) adsorbed on the surface of a supporter(22) comprising carbon mainly and is obtained by adsorbing and reducing an active metal onto the inner surface of pores(V) and the outer surface of a porous supporter where the pores opened from the inside to the outside are formed in the total outer surface. Preferably the average diameter of the pore entrance meeting the outer surface of the supporter is 2-15 nm, and the total surface area of the supporter comprising the outer surface and the inner surface of pores open outside is 200-2,500 m2/g. Preferably the active metal is a Pt-M alloy, and M is selected from the group consisting of Ru, Sn, Os, Rh, Ir, Pd, V, Cr, Co, Ni, Fe and Mn.
Abstract translation: 目的：提供一种用于燃料电池的电极催化剂，通过使用具有直径小于一氧化碳的动力学直径的孔的多孔载体来降低一氧化碳与活性金属之间的接触概率，从而减少一氧化碳的中毒 。 构成：电极催化剂主要包含吸附在包含碳的载体（22）的表面上的活性金属（21），并且通过将活性金属吸附并还原到孔（V）的内表面和 其中从内侧向外部开口的孔形成在整个外表面中的多孔支撑体。 优选地，满足支撑体外表面的孔入口的平均直径为2-15nm，包括外表面和外表面孔的内表面的总表面积为200-2,500m 2 / g。 优选地，活性金属是Pt-M合金，M选自Ru，Sn，Os，Rh，Ir，Pd，V，Cr，Co，Ni，Fe和Mn。
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公开(公告)号：KR1020040058729A
公开(公告)日：2004-07-05
申请号：KR1020020085108
申请日：2002-12-27
Applicant: 한국에너지기술연구원
IPC: H01M8/02
Abstract: PURPOSE: A separator for a fuel cell, which has a spiral flow channel for feeding fuel gas, is provided to reduce the energy loss and pressure drop in the flow channel, thereby helping the drain of water, and to increase the efficiency per square area of the separator, thereby being advantageous in minimization of the separator stack. By using the separator, it is possible to make uniform use of a gas no matter with the gas pressure, and the temperature distribution in the separator becomes homogeneous. CONSTITUTION: The separator for a fuel cell comprises a spiral flow channel comprised of an inflow channel band(Bi), in which channel bands(B) which consist of plurality of parallel channels(C), start from one outside of the separator disc, extend to make a half round along the surface frame of the separator, and further extend to make another half round or more while keeping a distance like the width of the channel band from the frame and the inner surface of the already formed channel, thereby forming a spiral that extends toward the center of the separator; and an outflow channel band(B0), in which the end of the inflow channel band(Bi) at the center of the separator takes a U turn to change the proceeding direction, then makes one round along the inner surface of the inflow channel band, and outwardly extends between the inflow channel bands that are separated from each other with the distance, to the outside of the separator disc.
Abstract translation: 目的：提供一种用于燃料电池的隔板，其具有用于馈送燃料气体的螺旋流动通道，以减少流动通道中的能量损失和压降，从而有助于排水，并且提高每平方面的效率 从而有利于最小化分离器叠层。 通过使用隔膜，可以均匀地使用气体，无论气体压力如何，并且隔膜中的温度分布变得均匀。 构成：用于燃料电池的隔板包括由流入通道带（Bi）组成的螺旋流动通道，其中由多个平行通道（C）组成的通道带（B）从分离器盘的一个外部开始， 延伸到隔板的表面框架半圆形，并且进一步延伸以再次半圆形或更长，同时保持像通道带宽度与框架和已经形成的通道的内表面的距离，从而形成 螺旋，其朝向分离器的中心延伸; 和流出通道带（B0），其中分离器中心处的流入通道带（Bi）的端部进行U转以改变行进方向，然后沿着流入通道带的内表面一个圆 并且在彼此间隔开的流入通道带之间向外延伸到分离器盘的外部。
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公开(公告)号：KR1020020065118A
公开(公告)日：2002-08-13
申请号：KR1020010005466
申请日：2001-02-05
Applicant: 한국에너지기술연구원
IPC: H01M8/04
Abstract: PURPOSE: Provided is an automatic experimental and performance-estimating apparatus for a polymer electrolyte fuel cell, which can estimate the long and short operation performance of a power generation system of the fuel cell and find the most suitable operation condition automatically. CONSTITUTION: The automatic experimental and performance-estimating apparatus comprises: a gas supply system(100) comprising main pipes(150,160) connected to a fuel cell stack(1) and exhaust pipes(170,180) exhausting the reacted gas from the fuel cell stack(1); a hydrogen recovering system(200) diverged from the exhaust pipe(170) and connected to the main pipe(150); a cooling system(300) containing a cooling water storing tank(301) connected to the fuel cell stack(1) through liquid-gas separators(173,183) mounted to the exhaust pipes(170,180) and connected to humidifiers(153,163) mounted to the main pipes(150,160) through the fuel cell stack(1); a water recovering system(400) connected to the cooling water storing tank(301) from the liquid-gas separators(154,164,173,183) through solenoid valves(401,402,403,404); a control system(500) comprising an automatic control and measure system(501), a signal converter(502), and an electric load controlling system of the fuel cell stack(1).
Abstract translation: 目的：提供一种用于聚合物电解质燃料电池的自动实验和性能估计装置，可以估计燃料电池发电系统的长期和短期运行性能，并自动找到最合适的运行状态。 构成：自动实验和性能估计装置包括：气体供应系统（100），其包括连接到燃料电池堆（1）的主管（150,160）和排出来自燃料电池堆的反应气体的排气管（170,180） 1）; 从排气管（170）分流并连接到主管（150）的氢回收系统（200）; 冷却系统（300），其包含通过安装在排气管（170,180）上的液气分离器（173,183）连接到燃料电池堆（1）的冷却水存储罐（301），并连接到安装在该燃料电池堆上的加湿器（153,163） 通过燃料电池堆（1）的主管（150,160）; 通过电磁阀（401,402,403,404）从液体气体分离器（154,164,173,183）连接到冷却水存储罐（301）的水回收系统（400）; 控制系统（500），包括自动控制和测量系统（501），信号转换器（502）和燃料电池堆（1）的电负载控制系统。
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