化工学报 ›› 2021, Vol. 72 ›› Issue (3): 1667-1674.DOI: 10.11949/0438-1157.20200724

• 能源和环境工程 • 上一篇    下一篇

不同基底材料复合电极对热再生氨电池产电性能的影响

唐志强1,2(),石雨1,2,张亮1,2(),李俊1,2,付乾1,2,朱恂1,2,廖强1,2   

  1. 1.低品位能源利用技术及系统教育部重点实验室,重庆 400030
    2.重庆大学工程热物理研究所,重庆 400030
  • 收稿日期:2020-06-08 修回日期:2020-07-15 出版日期:2021-03-05 发布日期:2021-03-05
  • 通讯作者: 张亮
  • 作者简介:唐志强(1995—),男,硕士研究生,Zhiqiang9508@cqu.edu.cn
  • 基金资助:
    国家自然科学基金面上项目(51976018);重庆市基础科学与前沿技术项目(cstc2017jcyjAX0203);重庆市留学人员创业创新支持计划创新资助重点项目(cx2017020);中央高校基本科研业务费专项资金(10611 2016CDJXY 145504);低品位能源利用技术及系统教育部重点实验室固定人员科研基金(LLEUTS-2018005)

Effects of composite electrodes with different substrate materials on electricity generation of thermal regenerative ammonia-based batteries

TANG Zhiqiang1,2(),SHI Yu1,2,ZHANG Liang1,2(),LI Jun1,2,FU Qian1,2,ZHU Xun1,2,LIAO Qiang1,2   

  1. 1.Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China
    2.Institute of Engineering Thermophysics, Chongqing University, Chongqing 400030, China
  • Received:2020-06-08 Revised:2020-07-15 Online:2021-03-05 Published:2021-03-05
  • Contact: ZHANG Liang

摘要:

针对热再生氨电池(thermally regenerative ammonia-based battery,TRAB)铜电极局部结构易被腐蚀断裂这一问题,构建了骨架结构相对较稳定的复合电极并应用于TRAB,研究了不同基底材料复合电极的电镀特性及其对TRAB产电特性和最大功率输出的影响。研究结果表明,与其他基底材料复合电极的电池相比,采用泡沫镍基底材料复合电极的TRAB虽电极表面积和镀铜量相对较小,但是具有较低的物质传输阻力和最小的欧姆内阻,从而获得最大的电压输出、最大的产电量和能量密度、最高的库仑效率和最高的功率输出(11.5 mW)。可见,泡沫镍作为TRAB复合电极的基底材料是一个相对较好的选择,同时需针对复合电极孔隙大小的影响规律开展后续研究。

关键词: 热再生氨电池, 复合电极, 比表面积, 最大功率, 传质

Abstract:

Aiming at the problem that the copper electrode of the thermally regenerative ammonia-based battery (TRAB) is easily corroded to break, composite electrodes with relatively stable skeleton structure was constructed and applied to TRAB. The electroplating characteristics of composite electrodes with different base materials and the influence on the power generation characteristics and maximum power output of TRAB were studied. The research results show that, compared with other base material composite electrode batteries, although the TRAB with foam nickel base material composite electrode has a relatively small electrode surface area and copper plating volume, it has lower material transmission resistance and minimum ohmic internal resistance. Obtain the largest voltage output, the largest power generation and energy density, the highest coulombic efficiency and the highest power output (11.5 mW). It can be seen that nickel foam as a base material for the TRAB composite electrode is a relatively good choice. At the same time, follow-up research on the influence of the pore size of the composite electrode is required.

Key words: thermally regenerative ammonia-based battery, composite electrode, electrode specific surface area, maximum power, mass transfer

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