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球形氧化锌/石墨烯复合材料的制备及其对铅酸电池循环寿命的影响

徐绮勤 马国正 吴宝珠 陈红雨

徐绮勤, 马国正, 吴宝珠, 陈红雨. 球形氧化锌/石墨烯复合材料的制备及其对铅酸电池循环寿命的影响[J]. 华南师范大学学报(自然科学版), 2020, 52(2): 46-52. doi: 10.6054/j.jscnun.2020026
引用本文: 徐绮勤, 马国正, 吴宝珠, 陈红雨. 球形氧化锌/石墨烯复合材料的制备及其对铅酸电池循环寿命的影响[J]. 华南师范大学学报(自然科学版), 2020, 52(2): 46-52. doi: 10.6054/j.jscnun.2020026
XU Qiqin, MA Guozheng, WU Baozhu, CHEN Hongyu. The Synthesis of S-ZnO/rGO Composite Material and the Cycle Performance of Lead Acid Battery[J]. Journal of South China normal University (Natural Science Edition), 2020, 52(2): 46-52. doi: 10.6054/j.jscnun.2020026
Citation: XU Qiqin, MA Guozheng, WU Baozhu, CHEN Hongyu. The Synthesis of S-ZnO/rGO Composite Material and the Cycle Performance of Lead Acid Battery[J]. Journal of South China normal University (Natural Science Edition), 2020, 52(2): 46-52. doi: 10.6054/j.jscnun.2020026

球形氧化锌/石墨烯复合材料的制备及其对铅酸电池循环寿命的影响

doi: 10.6054/j.jscnun.2020026
基金项目: 

国家自然科学基金项目 21773076

广州市民生科技项目 201803020038

详细信息
    通讯作者:

    马国正,副教授,Email:maguozheng@m.scnu.edu.cn

  • 中图分类号: O646

The Synthesis of S-ZnO/rGO Composite Material and the Cycle Performance of Lead Acid Battery

  • 摘要: 采用水热法制备了球形氧化锌/石墨烯(S-ZnO/rGO)复合材料,首先采用水热法制备S-ZnO, 再将氧化石墨(GO)和S-ZnO的混合水溶液在180 ℃下水热反应12 h,最终得到S-ZnO/rGO复合材料.以S-ZnO/rGO复合材料为铅酸蓄电池负极添加剂,探究了0.5%、1.0%、1.5%、2.0%这4种添加质量分数对铅酸电池电化学性能的影响.电化学测试结果表明:电池在高倍率部分荷电状态(HRPSoC)下的循环寿命随着复合材料添加质量分数的增加先增大后减小,其中掺入1.0% S-ZnO/rGO复合材料的电池在HRPSoC下循环性能最好,寿命可达19 158次,比普通铅酸蓄电池的寿命(7 210次)延长了165.7%.由此表明添加S-ZnO/rGO复合材料能够改善负极板的硫酸盐化现象,从而提高电池的循环稳定性.
  • 图  1  制备S-ZnO/rGO复合材料的示意图

    Figure  1.  The schematic illustration of preparing the S-ZnO/rGO composite

    图  2  S-ZnO和S-ZnO/rGO复合材料的热重分析曲线

    Figure  2.  The TG curves of the S-ZnO and S-ZnO/rGO composite

    图  3  S-ZnO和S-ZnO/rGO复合物的XRD谱

    Figure  3.  The XRD patterns of S-ZnO and S-ZnO/rGO composite

    图  4  不同材料的SEM图

    Figure  4.  The SEM images of different materials

    图  5  S-ZnO/rGO复合材料的CV曲线

    Figure  5.  The CV curves of the S-ZnO/rGO composite

    图  6  rGO和S-ZnO/rGO复合材料的Nyquist图

    Figure  6.  The Nyquist plots of the rGO and S-ZnO/rGO composite

    图  7  S-ZnO/rGO电池的放电比容量曲线和循环性能曲线

    Figure  7.  The discharge curves and cyclic performance of the S-ZnO/rGO batteries

    图  8  HRPSoC循环后负极材料的SEM图

    Figure  8.  The SEM images of cathodes after HRPSoC cycles

    图  9  电池的放电比容量和循环性能曲线

    Figure  9.  The discharge curves and cyclic performance of the batteries

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出版历程
  • 收稿日期:  2019-02-19
  • 刊出日期:  2020-04-25

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