新型平板式固体氧化物燃料电池的开发和性能分析  

Development and Performance Analysis of New Planar Solid Oxide Fuel Cell

作　　者：王玉璋[1] 于建国[1] 惠宇[1] 翁史烈[1] 

机构地区：[1]上海交通大学机械与动力工程学院,动力机械及工程国家教育部重点实验室,上海200240

出　　处：《动力工程》2008年第6期949-954,共6页Power Engineering

基　　金：国家重点基础研究发展计划(973计划)资助项目(2007CB210102);国家自然科学基金资助项目(50676061)

摘　　要：利用商业数值分析软件和试验获得的电池各部件材料性能数据,改进了用于分析固体氧化物燃料电池(SOFC)单电池内部复杂物理过程的软件包.应用该软件包,得到了设计的新型高效平板式SOFC单电池内部各气体组分浓度、温度、电势、电流及电流密度等参数的分布规律.分析结果表明:在高燃料利用率情况下,阳极内组分扩散引起的浓度极化损失是影响电池性能的重要因素之一.该新型结构电池可有效改善电池的密封性,但其电解质需要较高的最大离子传导率.Based on commercial CFD software and experimental performance data of fuel cell components, the software package used to analyze complicated physical process of single cell of solid oxide fuel cell （SOFC） was improved. Distribution laws of gas components concentration, temperature, electric potential, current and current density of new developed planar SOFC＇s single cell were obtained using the above software package. Results show that, at a high fuel efficiency, polarization loss of concentration caused by components diffusion in anode is one of the most important factors influencing cell performance. This new kind of fuel cell is able to improve leak tightness efficiently. However, its electrolyte should be with higher maximum ionic conductivity.

关 键 词：能源系统工程 固体氧化物燃料电池 传热传质 电化学反应 电流场 

分 类 号：TM911.4[电气工程—电力电子与电力传动]