摘要
一体式可再生燃料电池(URFC)对质量限制场合有着十分重要意义。膜电极(MEA)和流场构型是影响URFC性能的主要因素,为此研究了氧电极中Pt和Ir催化剂比例和两种流场构型,以及电池工作温度。通过电池双模式循环工作效率来评价膜电极和流场对一体式可再生燃料电池性能的影响。结果表明:最佳催化剂比例是:Pt与Ir质量比3∶1;流场对电池性能影响显著,并且相对于WE模式,在FC模式下影响更大。
The unitized regenerative fuel cells （URFCs） have vital significance for weight limit situation. The membrane and electrode assembly （MEA） and flow-field are major factors in performance of URFC. In this paper, the compositions of Ptlr catalysts, two flow-field patterns and operation temperature were studied. The influence of MEA and flow-field for URFC was estimated by round-trip conversion efficiency. The result shows that the optimum proportion of Pt ： Ir is 3 ： 1; And comparing with that in WE mode, the influence of flow-field is more important in FC mode.
出处
《电源技术》
CAS
CSCD
北大核心
2011年第10期1235-1239,共5页
Chinese Journal of Power Sources
基金
国家"863"计划(2009AA05Z116)
关键词
一体式可再生燃料电池
膜电极
双效氧电极催化剂
比例
温度
流场
unitized regenerative fuel cell （URFC）
membrane and electrode assembly （MEA）
bifunctional oxygen electrode catalyst
catalyst proportion
temperature
flow-field pattern
