基于CuO-ZnO的低温固体氧化物燃料电池性能  

The performance of low temperature solid oxide fuel cells based on CuO-ZnO

作　　者：田宁[1] 谭雯竹 于吉 罗寅先 黄永涛 王诚源 郑若宁 屈艳梅 TIAN Ning;TAN Wenzhu;YU Ji;LUO Yinxian;HUANG Yongtao;WANG Chengyuan;ZH ENG Ruoning;QU Yanmei(College of Physical Science and Technology,Shenyang Normal University,Shenyang 110034,China)

机构地区：[1]沈阳师范大学物理科学与技术学院,沈阳110034

出　　处：《沈阳师范大学学报（自然科学版）》2024年第1期88-92,共5页Journal of Shenyang Normal University:Natural Science Edition

基　　金：辽宁省高等学校基础科研项目(LJKMZ20221470).

摘　　要：制备具有优异离子导电性和低温高化学性能的电解质是固体氧化物燃料电池实际应用的重要发展方向.基于p型CuO和n型ZnO构建p-n半导体异质结材料,并将其作为电解质应用于低温固体氧化物燃料电池.制备了不同质量比例CuO-ZnO的电解质材料,并组装Ni_(0.8) Co_(0.15)Al_(0.05)LiO_(2-δ)/CuO-ZnO/Ni_(0.8)Co_(0.15)Al_(0.05)LiO_(2-δ)单电池进行性能测试.结果表明,基于纯ZnO电解质材料的燃料电池性能最低(在550℃开路电压为为0.8 V,最大功率密度为187.5mW/cm^(2)),复合质量比例为1∶9的燃料电池性能最为优异(在550℃开路电压为1.065V,瞬时最大功率密度为555mW/cm^(2)).通过对CuO-ZnO异质结复合材料的电化学阻抗分析,发现构建的p-n半导体异质结为离子传输提供了通道,提高了离子电导率.研究表明p-n型电解质复合材料在低温固体氧化物燃料电池的应用中具有很大潜力.The preparation of electrolytes with excellent ionic conductivity and low temperature high chemical properties is an important development direction for the practical application of solid oxide fuel cells.In this regard,p-n semiconductor heterojunction materials based on p-type CuO and n-type ZnO were constructed and used as electrolytes in low-temperature solid oxide fuel cells.The electrolyte materials with different mass ratios of CuO-ZnO were prepared and assembled Ni_(0.8) Co_(0.15)Al_(0.05)LiO_(2-δ)/CuO-ZnO/Ni_(0.8)Co_(0.15)Al_(0.05)LiO_(2-δ) single cell for performance test.The results show that the fuel cell based on pure ZnO electrolyte material has the lowest performance(the open circuit voltage is 0.8 V at 550 C,the maximum power density is 187.5 mW/cm^(2)),and the fuel cell with a composite mass ratioof 1:9 has the best performance(the open circuit voltage is 1.065 V at 550 C,the instantaneous maximum power density is 555 mW/cm^(2)).Through the electrochemical impedance analysis of CuO-ZnO heterojunction composites,it is found that the constructed p-n semiconductor heterojunction provides a channel for ion transport and improves the ionic conductivity.Studies have shown that p-n type electrolyte composites have great potential in the application of low temperature solid oxide fuel cells.

关 键 词：低温固体氧化物燃料电池 电解质材料 半导体p-n型 

分 类 号：O469[理学—凝聚态物理] TB34[理学—电子物理学]