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首页> 外文期刊>Journal of power sources >Electrochemical Behavior And Application Of Lead-lanthanum Alloys For Positive Grids Of Lead-acid Batteries
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Electrochemical Behavior And Application Of Lead-lanthanum Alloys For Positive Grids Of Lead-acid Batteries

机译：铅酸蓄电池正极网格中铅镧合金的电化学行为及其应用

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摘要

The effects of different lanthanum content (0, 0.00600, 0.0112, 0.0195 and 0.0540 wt.%) on the electrochemical behavior of lead-lanthanum alloy in sulfuric acid solutions were investigated by linear potential sweep (LSV), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). The morphology of the corrosion layer and corrosion section of Pb and Pb-La alloys were analyzed by scanning electron microscope (SEM) after corrosion testing. It was found that the addition of La inhibits the oxygen evolution reaction on the surface of Pb alloy electrodes, and La amounts of 0.00600 and 0.0540 wt.% in Pb-La alloy electrodes can lead to a more effective inhibition. The results of the LSV, CV and EIS experiments show that the addition of La can inhibit the growth of the anodic Pb(II) oxides and PbO_2 film. The resistance of the anodic film on the Pb-La electrodes is much lower than that on the Pb electrode. SEM for the corrosion layer indicates that the corrosion product on pure Pb and Pb-0.0195% La alloy is uniform and compact. The corrosion products on the alloys with La contents of 0.00600,0.0112 and 0.0540 are loose and porous that the active materiah can easily sit in the apertures to contact the grid surface intimately with the effective. The results demonstrate that Pb-La alloys show the potential for application as the positive grid material in maintenance-free lead-acid batteries.
机译：通过线性电势扫描（LSV），循环伏安法（CV）和循环伏安法研究了不同镧含量（0、0.00600、0.0112、0.0195和0.0540 wt。％）对铅-镧合金在硫酸溶液中的电化学行为的影响。电化学阻抗谱（EIS）。腐蚀试验后，用扫描电子显微镜（SEM）分析了Pb和Pb-La合金的腐蚀层和腐蚀区的形貌。已经发现，La的添加抑制了Pb合金电极表面上的氧逸出反应，并且Pb-La合金电极中的La含量为0.00600和0.0540wt。％可以导致更有效的抑制。 LSV，CV和EIS实验的结果表明，添加La可以抑制阳极Pb（II）氧化物和PbO_2膜的生长。 Pb-La电极上的阳极膜电阻远低于Pb电极上的阳极膜。腐蚀层的SEM表明，纯Pb和Pb-0.0195％La合金上的腐蚀产物均匀且致密。 La含量为0.00600、0.0112和0.0540的合金上的腐蚀产物是疏松和多孔的，因此活性材料可以轻松地位于孔中，从而有效地紧密接触网格表面。结果表明，Pb-La合金具有在免维护铅酸电池中用作正极板材料的潜力。

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  • 来源
    《Journal of power sources》 |2009年第2期|1204-1211|共8页
  • 作者

    Aiju Li; Yiman Cheni; Hongyu Chen; Dong Shu; Weishan Li; Hui Wang; Chuanlong Dou; Wei Zhang; Shun Chen;

  • 作者单位

    School of Chemistry and Environment, South China Normal University, Key Lab of Electrochemical Technology on Energy Storage and Power Generation in Guangdong Universities, Guangzhou. Guangdong 510006, China;

    School of Chemistry and Environment, South China Normal University, Key Lab of Electrochemical Technology on Energy Storage and Power Generation in Guangdong Universities, Guangzhou. Guangdong 510006, China;

    School of Chemistry and Environment, South China Normal University, Key Lab of Electrochemical Technology on Energy Storage and Power Generation in Guangdong Universities, Guangzhou. Guangdong 510006, China;

    School of Chemistry and Environment, South China Normal University, Key Lab of Electrochemical Technology on Energy Storage and Power Generation in Guangdong Universities, Guangzhou. Guangdong 510006, China;

    School of Chemistry and Environment, South China Normal University, Key Lab of Electrochemical Technology on Energy Storage and Power Generation in Guangdong Universities, Guangzhou. Guangdong 510006, China;

    Zhuzhou Smelter Group Co.. Ltd.. Zhuzhou, Hunan 412004, China;

    Zhuzhou Smelter Group Co.. Ltd.. Zhuzhou, Hunan 412004, China;

    Zhuzhou Smelter Group Co.. Ltd.. Zhuzhou, Hunan 412004, China;

    Zhuzhou Smelter Group Co.. Ltd.. Zhuzhou, Hunan 412004, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    lead-acid battery grid; lead-lanthanum alloy electrochemical behavior;

    机译：铅酸蓄电池栅;铅镧合金的电化学行为;

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