| 铅酸蓄电池使用后PE隔板上白色物质的分析研究 |
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| 引用本文： | 刘璐,张霄喃,王建新,刘丽坤,陈志雪,尹艳鹏,王梦阳,张玉峰,丁克强.铅酸蓄电池使用后PE隔板上白色物质的分析研究[J].蓄电池,2014(5):202-206. |
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| 作者姓名： | 刘璐 张霄喃 王建新 刘丽坤 陈志雪 尹艳鹏 王梦阳 张玉峰 丁克强 |
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| 作者单位： | 河北师范大学化学与材料科学学院;风帆股份有限公司;中国联合网络通信有限公司河北省分公司; |
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| 基金项目： | 国家自然科学基金(21173066);河北省自然科学基金(B2011205014);河北师范大学应用开发基金(L2010k03)等基金的资助 |
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| 摘 要： | 本文利用X射线衍射、电子扫描电镜、红外光谱等技术，对使用后隔板上生成的白色物质进行了充分表征，证明此白色物质为PbSO4晶体。利用交流阻抗技术对使用前后的隔板进行了比较，发现使用后隔板的不同部位阻抗值不同。结合表征结果，认为坚硬的PbSO4晶体在特定机械碰撞情况下可刺破隔板，产生瞬间大电流，在氢气和氧气存在下可引起爆炸等事故的发生。
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| 关 键 词： | PE隔板 铅酸蓄电池 硫酸铅 阻抗 |
Studies on the white substances on the used PE separator |
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| Affiliation: | LIU Lu, ZHANG Xiao-nan, WANG Jian-xin, LIU Li-kun, CHEN Zhi-xue, YIN Yan-peng, WANG Meng-yang, ZHANG Yu-feng, DING Ke-qiang (1. College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang Hebei 050024; 2. Fengfan Co., Ltd., Baoding Hebei 071057; 3. Hebei Branch of China United Network Communications Corporation, Shijiazhuang Hebei 050011, China) |
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| Abstract: | The white substances anchored on the used PE separator were thoroughly characterized by X-ray diffraction（XRD）, scanning electron microscopy（SEM） and Fourier transform infrared spectrometry （FT-IR）.The results revealed that the white substances were PbSO4 crystals. The separators before and after utilization were featured by electrochemical impedance spectroscopy （EIS）, indicating that the values of resistance for various parts of a separator were different from each other. According to above characterization, it is concluded that the hard PbSO4 may puncture the separator, generating large currents. This may lead to explosion in the presence of hydrogen and oxygen gases. |
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| Keywords: | PE separator lead-acid battery PbSO4 crystal resistance |
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