碱性阴离子交换膜燃料电池的研究
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- 英文论文题名：Alkaline Anion Exchange Membrane Fuel Cell
- 论文作者：俞红梅
- 英文论文作者：Hongmei Yu ; Fuel Cell & Battery Division ; Dalian National Laboratory for Clean Energy ; Dalian Institute of Chemical Physics ; CAS
- 年：2016
- 作者机构：中国科学院大连化学物理研究所大连洁净能源国家实验室(筹)燃料电池研究部;
- 论文关键词：燃料电池 ; 碱性阴离子交换膜 ; 立体化树脂 ; 膜电极 ; 水管理
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十九分会：电化学材料
- 语种：中文
- 分类号：TM911.48
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十九分会 ; 电化学材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：145k
- 原文格式：D
- 会议级别：全国
摘要
质子交换膜燃料电池(PEMFC)是目前最接近于实用的燃料电池,但在酸性体系中,电催化剂仅局限于Pt等贵金属催化剂,而且受氧还原电催化速度较慢的制约,PEMFC的电化学能量转化效率还亟待进一步提高。解决这些问题的可能出路是采用碱性聚合物电解质来代替酸性聚合物电解质。在碱性体系中,阳极氢氧化和阴极氧还原反应都具有较高的反应活性,可采用非贵金属催化剂,将不受铂的资源与成本的限制。同时,碱性体系较之酸性体系,对燃料电池材料的耐腐蚀要求也会降低。因此,碱性阴离子交换膜燃料电池(Alkaline Anion Exchange Membrane Fuel Cell,AEMFC)近年来成为国际燃料电池领域新的研究热点之一。其中的关键材料--传导阴离子的电解质膜需兼顾传导率与溶胀率,立体化树脂需提高稳定性,膜电极结构需兼顾阴极供水与阳极排水。我们在复合增强碱性阴离子交换膜、立体化树脂、膜电极等关键材料与部件方面开展了一系列工作;同时针对AEMFC与PEMFC的显著差异—水管理进行研究,完成了千瓦级AEMFC电堆。
Alkaline anion exchange membrane fuel cell(AEMFC) is expected as a promising candidate for getting rid of the dependence of nobel metals, it will shows advantage on polymer electrolyte and cheap electrocatalyst options. However, the AEMFC needs high anion conductive membrane material which should be stable under fuel cell operating condition. Comparing with proton exchange membrane, anion conductive material is facing more challenges, i.e., low anion conductive rate, less stable in fuel cell conditions. The possibility of composite anion exchange membranes were investigated in this work. Based on the in-house composite anion exchange membrane, anion exchange ionoer, membrane electrode assemblies were prepared. Measurements of a single cell, as well as a kW-scale stack, were implemented to evaluate the performance and the application possibility of AEMFC.
Alkaline anion exchange membrane fuel cell(AEMFC) is expected as a promising candidate for getting rid of the dependence of nobel metals, it will shows advantage on polymer electrolyte and cheap electrocatalyst options. However, the AEMFC needs high anion conductive membrane material which should be stable under fuel cell operating condition. Comparing with proton exchange membrane, anion conductive material is facing more challenges, i.e., low anion conductive rate, less stable in fuel cell conditions. The possibility of composite anion exchange membranes were investigated in this work. Based on the in-house composite anion exchange membrane, anion exchange ionoer, membrane electrode assemblies were prepared. Measurements of a single cell, as well as a kW-scale stack, were implemented to evaluate the performance and the application possibility of AEMFC.
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