7 research outputs found

    质子交换膜燃料电池模型研究进展

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    综述了质子交换膜燃料电池(PEMFC)数学模型的研究进展,分析PEMFC中膜、催化层、扩散层和流场区域的传递现象和水、热管理的重要性,讨论了模型的维数、复杂性和求解方法。提出了带有时间维数的PEMFC模型研究的实际应用意义

    高效率多硫化钠/溴储能电池的研究

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    采用高温还原的方法制备了多硫化钠/溴储能电池负极用Ni/C催化剂,Ni/C,Pt/C分别是多硫化钠/溴储能电池负极和正极性能良好的电催化剂,系统地研究了Nafion膜的厚度,电催化剂含量,操作条件对电池充放电性能的影响,采用较厚的膜,电池性能稍微降低,但可减少阴离子的渗透,这种新型储能电池放电时功率密度达到0.7W/cm^2(U=1.0V)。循环性能研究表明,采用较厚的膜,电池的充放电性能好,性能衰减很小,在100mA/cm2充放电,电压效率达到86.7%

    高效率多硫化钠/溴储能电池的研究

    No full text
    采用高温还原的方法制备了多硫化钠/溴储能电池负极用Ni/C催化剂,Ni/C,Pt/C分别是多硫化钠/溴储能电池负极和正极性能良好的电催化剂,系统地研究了Nafion膜的厚度,电催化剂含量,操作条件对电池充放电性能的影响,采用较厚的膜,电池性能稍微降低,但可减少阴离子的渗透,这种新型储能电池放电时功率密度达到0.7W/cm^2(U=1.0V)。循环性能研究表明,采用较厚的膜,电池的充放电性能好,性能衰减很小,在100mA/cm2充放电,电压效率达到86.7%

    Review of Mathematical Model for Proton Exchange Membrane Fuel Cell

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    综述了质子交换膜燃料电池 (PEMFC)数学模型的研究进展 ,分析PEMFC中膜、催化层、扩散层和流场区域的传递现象和水、热管理的重要性 ,讨论了模型的维数、复杂性和求解方法 .提出了带有时间维数的PEMFC模型研究的实际应用意义In the review with 49 references, the mathematical models for proton exchange membrane fuel cell (PEMFC) were summarized. The mechanistic model and empirical model were introduced. Transfer in the membrane, catalyst layer,diffusion layer and flow field of PEMFC were described. The importance of water and heat management was analyzed. The dimension, complexity and solving methods of the PEMFC model were discussed. The importance and validity to develop a model with time dimension are put forward.作者联系地址:中国科学院大连化学物理研究所燃料电池工程中心,中国科学院大连化学物理研究所燃料电池工程中心,中国科学院大连化学物理研究所燃料电池工程中心 辽宁大连,116023 ,辽宁大连,116023 ,辽宁大连,116023Author's Address: Fuel cell R & D Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023,Chin

    Study of Proton exchange Membrane Fuel Cells(PEMFC)

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    通过测定电压~电流密度曲线等方法研究质子交换膜燃料电池的电极参数,构造了Ecel=0.7V,I=0.55A/cm2并能够稳定运行的燃料电池.改进电池的电极结构,研究了各种操作条件如温度、压力、增湿情况、尾气流量等对电池性能的影响.The electrode kinetic parameters for proton exchange membrane fuel cells(PEMFC) were investigated by measuring the relations of cell potential and current density. An experimental stack of PEMFC which can be operated at E cell =0.7V, I =0.55A/cm 2 steadily is presented, and the effects of electrode structure and operation conditions such as temperature, pressure, humidification, flow rate on the performance of PEMFC are discussed.作者联系地址:中国科学院大连化学物理研究所Author's Address: Dalian Institute of Chemical Phycics, Chinese Academy of Science, Dalian 116023

    A Study on Solid Polymer Electrolyte Fuel Cell

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    报道了固体聚合物电解质燃料电池的电极制备方法和温度、压力以及阴极气量对电池性能的影响.Solid polymer electrolyte fuel cell(SPEFC)show promise of a high level of performance in the present fuel cell.In this paper,we report the method of SPEFC electrode preparation,and the effects of temperature,pressure and gas flow rate on the performance.作者联系地址:中国科学院大连化学物理研究所Author's Address: Dalian Institute of Chemical Physics,Chinese A cadamy of Sciences,Dalian 11601
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