PEMFC用氢-空自增湿MEA的性能  

The performance of H_2/air self-humidifying MEA for PEMFC

作　　者：吕维忠 刘志祥[2] 王诚[2] 张密林[1] 

机构地区：[1]哈尔滨工程大学材料科学与化学工程学院,黑龙江哈尔滨150001 [2]清华大学核能与新能源技术研究院,北京100084

出　　处：《电池》2010年第3期127-130,共4页Battery Bimonthly

基　　金：国家高新技术研究发展(863)项目(2008AA05Z104)

摘　　要：采用流延法重铸Pt掺杂的Pt-PSFA复合膜,组装了常压氢-空自增湿质子交换膜燃料电池(PEMFC)。通过对催化剂层载量、平整层载量的优化,利用催化剂涂覆膜(CCM)技术制备了性能稳定的自增湿膜电极组件(MEA)。在常压、操作温度为60℃、干燥反应气的条件下,Pt-PSFA复合膜组装的PEMFC的最大功率密度为448 mW/cm2。MEA的活性面积从6.25 cm2增大到25 cm2,PEMFC的性能几乎没有衰减。A Pt-PSFA composite membrane self-humidifying membrane was prepared by tape-casting recast with dispersed Pt,the ambient pressure H2/air self-humidifying proton exchange membrane fuel cell（PEMFC）was constructed.By the optimization of catalyst and sub-layer loading,a self-humidifying membrane electrolyte assembly（MEA）with stable performance was prepared by catalyst-coating membrane（CCM）process.The peak power density of the PEMFC constructed with Pt-PSFA composite membrane was 448 mW/cm2 with the condition of ambient pressure,operation temperature of 60 ℃ and dry reaction gas.The performance of PEMFC had no obvious attenuation when the active area of MEA scaled up from 6.25 cm2 to 25 cm2.

关 键 词：自增湿 质子交换膜(PEM) 膜电极组件(MEA) 铂 

分 类 号：TM911.47[电气工程—电力电子与电力传动]