固体聚合物电解质水电解池用阳极气体扩散层  

Anode gas diffusion layer for solid polymer electrolyte electrolyzer

作　　者：刘高阳[1,2] 蒋钜明[2] 王新东[1,2] 

机构地区：[1]北京科技大学高效钢铁冶金国家重点实验室,北京100083 [2]北京科技大学物理化学系,北京100083

出　　处：《电池》2013年第5期250-252,共3页Battery Bimonthly

基　　金：国家自然科学基金项目(51274028)

摘　　要：采用刷涂法在钛网基体上制备扩散层,结合固体聚合物电解质(SPE)水电解池中的交流阻抗及极化曲线测试,探讨浆料中PVDF、PTFE和锑掺杂二氧化锡(ATO)配比对阳极扩散层厚度、阻值、孔隙率、疏水性和单体电池性能的影响。PVDF与PTFE添加量的增加,使阳极扩散层的厚度增加、阻值增大、孔隙率下降及疏水性增强;PVDF对阻值、孔隙率的影响更大。合理的m(ATO)∶m(PVDF)∶m(PTFE)为15∶1∶2,在常压、80℃下,电流密度为1 A/cm2时,槽压仅为1.59 V。Brushing method was used in the preparation of gas diffusion layer（GDL） on the substrate of titanium mesh. Combined with EIS and polarization curves test, thickness, resistance, porosity, hydrophobicity, and single cell performance of handmade GDL prepared with different slurry were discussed. The increase of the PVDF and PTFE caused the thickness increased ,the resistance increased ,the porosity decreased and hydrophohicity improved of GDLs. Besides ,the increase of PVDF had greater adverse impact on the resistance and the porosity compared with PTFE. Reasonable proportion ratio of PVDF,PTFE and ATO was 15： 1：2. At 80 ℃ and atmospheric pressure, a current density of 1 A/cm2 , the cell voltage was only 1.59 V.

关 键 词：固体聚合物电解质(SPE) 水电解 气体扩散层(GDL) 锑掺杂二氧化锡(ATO) 

分 类 号：TM911.4[电气工程—电力电子与电力传动]