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The effect of barium sulfate-doped lead oxide as a positive active material on the performance of lead acid batteries

机译：硫酸钡掺杂氧化铅作为铅酸电池性能的阳性活性材料的影响

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摘要

Barium sulfate (BaSO4) is a common impurity in recycled lead paste that is challenging to eliminate completely during hydrometallurgical recycling of spent lead acid batteries, so the effect of this impurity in positive active materials on the performance of recycled lead acid batteries was investigated. The BaSO4 doped lead oxide composite was used as a positive active material in positive plates of lead acid batteries with theoretical capacities of 2.0 A h. BaSO4 was retained in the solid phase throughout the battery fabrication process. Different BaSO4 dosages affected the phase of the positive plates during the curing process, with the highest content of metallic lead obtained at a BaSO4 dosage of 0.06 wt%. Morphology analysis indicated that aggregates were formed in the positive plates and the particles became rougher with increasing addition of BaSO4 during the formation process. BaSO4 also demonstrated a large impact on charge/discharge cycles with 100% DOD in battery testing. Analysis of disassembled failed batteries indicated that the expansion and shedding-off of the positive active material were mainly responsible for the failure of these batteries, and this could be attributed to the non-uniform growth of lead oxide on the BaSO4 nucleus, and the accumulation of internal stress.
机译：硫酸钡（硫酸钡）是在回收铅膏一个共同的杂质是具有挑战性的废铅酸电池的湿法冶金回收过程中完全消除，所以这种杂质的正极活性物质上的回收铅酸电池性能的影响进行了研究。的硫酸钡掺杂氧化铅复合物用作在与2.0 Aħ理论容量的铅酸电池正极板的正极活性物质。硫酸钡保留在整个电池制造过程中的固相。不同剂量的BaSO4在固化过程中影响了正极板的相位，与在0.06重量％的硫酸钡剂量得到的金属铅的含量最高。形态学分析表明，在正极板形成的聚集体和颗粒变得粗糙与在形成过程中增加另外的BaSO4的。硫酸钡也表现出对充电/放电循环，用100％DOD在电池测试一个大的影响。拆卸故障电池的分析表明，扩大和脱落过的正极活性材料的主要负责这些电池的故障，这可能是由于氧化铅在硫酸钡核的非均匀生长和积累的内应力。

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  • 来源
    《RSC Advances》 |2016年第32期|共8页
  • 作者

    Yuan Xiqing; Hu Jingping; Xu Jingyi; Hu Yucheng; Zhang Wei; Dong Jinxin; Liang Sha; Hou Huijie; Wu Xu; Yang Jiakuan;

  • 作者单位

    HUST Sch Environm Sci &

    Engn Wuhan 430074 Peoples R China;

    HUST Sch Environm Sci &

    Engn Wuhan 430074 Peoples R China;

    HUST Sch Environm Sci &

    Engn Wuhan 430074 Peoples R China;

    HUST Sch Environm Sci &

    Engn Wuhan 430074 Peoples R China;

    HUST Sch Environm Sci &

    Engn Wuhan 430074 Peoples R China;

    HUST Sch Environm Sci &

    Engn Wuhan 430074 Peoples R China;

    HUST Sch Environm Sci &

    Engn Wuhan 430074 Peoples R China;

    HUST Sch Environm Sci &

    Engn Wuhan 430074 Peoples R China;

    HUST Sch Environm Sci &

    Engn Wuhan 430074 Peoples R China;

    HUST Sch Environm Sci &

    Engn Wuhan 430074 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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