电化学阻抗谱在质子交换膜燃料电池动态的先导应用  

The Pilot Application of Electrochemical Impedance Spectroscopy on Dynamic Proton Exchange Membrane Fuel Cell

作　　者：郭建伟[1] 王建龙[1] GUO Jian-wei;WANG Jian-long(Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学核能与新能源技术研究院,北京100084

出　　处：《电化学》2018年第6期687-696,共10页Journal of Electrochemistry

基　　金：国家自然科学基金项目(No.5173084;No.21776158);国家重点研发计划(No.2016YFB0101200)资助

摘　　要：通过分析电化学阻抗(EIS)在质子交换膜燃料电池(PEMFC)动态应用,本文指出制约EIS工具发展的瓶颈问题.EIS高频电阻确定电池内阻已成普遍方法,但仅在小电流电池可以应用;低频分析因涉及物质传输仍是难点和重点;EIS改进型Randles等效电路分析已初步建立,并深入至物质传输-反应、电池操作/衰减、高温电池研究;EIS正发展为电堆分析工具、电动汽车控制核心.然而多学科交叉的暂态EIS发展,仍是前沿突破难点.By analyzing Electrochemical Impedance Spectroscopy(EIS) in applications of dynamic proton exchange membrane fuel cell(PEMFC),bottlenecks which restrict EIS tool development have been pointed out in this paper.Though the high-frequency resistance in EIS is largely accepted as cell inner-resistance,this can only be applied for cell with low current.The low-frequency resistance is difficult to be realized due to its relation with mass transfer.Furthermore,the improved Randles equivalent circuits are built up preliminarily,thus,penetrating into studies for mass transfer reaction,cell operation/degeneration,and high temperature fuel cell.Inspiringly,EIS is becoming an analyzing tool for stack and control core for electric-vehicle.Nevertheless,it is still pioneer challenge to make breakthrough towards transient EIS method based on multi-discipline convergence.

关 键 词：交流阻抗谱 质子交换膜燃料电池 动态运行 电动汽车 等效电路 

分 类 号：O646[理学—物理化学] TM911.4[理学—化学]