α型和β型PbO2正极的充放电性能的比较

doi:10.61558/2993-074X.2938

电化学（中英文） ›› 2013, Vol. 19 ›› Issue (1): 43-52. doi: 10.61558/2993-074X.2938

• 电化学材料基础与表界面研究专辑（中国科学院化学研究所万立骏院士主编） • 上一篇下一篇

α型和β型PbO₂正极的充放电性能的比较

崔聪颖¹, 马学美¹, 孔德龙², 马厚义^1*

1. 山东大学化学与化工学院，山东济南 250100； 2. 山东圣阳电源股份有限公司，山东曲阜 273100

收稿日期:2011-11-04 修回日期:2012-03-17 出版日期:2013-02-28 发布日期:2012-03-27
通讯作者: 马厚义 E-mail:hyma@sdu.edu.cn
基金资助:
国家973项目计划（No. 2011CB935901）和山东大学自主创新基金（No. 2009JC019）资助

A Comparative Study of Charge-Discharge Behaviors of α-PbO₂ and β-PbO₂Cathodes

CUI Cong-Ying¹, MA Xue-Mei¹, KONG De-Long², MA Hou-Yi^1*

1. School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China; 2. Shandong Sacred Sun Power Sources Co. LTD., Qufu 273100, Shandong, China

Received:2011-11-04 Revised:2012-03-17 Published:2013-02-28 Online:2012-03-27
Contact: MA Hou-Yi E-mail:hyma@sdu.edu.cn

摘要/Abstract

摘要： 利用化学合成法分别制得α-PbO2和β-PbO2样品，采用XRD、SEM表征与观察两种不同晶型的PbO2样品. 由两种晶型PbO2粉末做成铅酸电池的活性正极，采用循环伏安、恒电流充放电以及电化学阻抗谱等电化学方法研究了其电化学性能. 结果表明，α-PbO2电极的放电容量较低，β-PbO2电极的放电容量较高，两种晶型PbO2粉末按不同配比制成复合电极有利于提高铅酸电池正极的充放电性能.

关键词: 二氧化铅, 铅酸蓄电池, 充放电性能, 电化学阻抗谱

Abstract: The α-PbO2 and β-PbO2 powders were prepared using simple chemical synthetic methods, and their crystalline structures and surface morphologies were characterized with X-ray powder diffraction spectroscopy and scanning electron microscopy. Using the as-synthesized α-PbO2 and β-PbO2 powders as positive active materials, the electrochemical performance of the two PbO2 materials was investigated by means of cyclic voltammetry, galvanostatic charge-discharge tests, and electrochemical impedance spectroscopy. The results indicate that the discharge capacity of α-PbO2 electrode is larger than that of β-PbO2; moreover, the composite electrodes made by α-PbO2 and β-PbO2 mixtures with different proportions are favorable for enhancing the charge-discharge cycle performance of PbO2 positive electrode.

Key words: lead dioxide, lead acid battery, charge-discharge performance, electrochemical impedance spectroscopy

中图分类号:

O646

崔聪颖, 马学美, 孔德龙, 马厚义. α型和β型PbO₂正极的充放电性能的比较[J]. 电化学（中英文）, 2013, 19(1): 43-52.

CUI Cong-Ying, MA Xue-Mei, KONG De-Long, MA Hou-Yi. A Comparative Study of Charge-Discharge Behaviors of α-PbO₂ and β-PbO₂Cathodes[J]. Journal of Electrochemistry, 2013, 19(1): 43-52.

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https://electrochem.xmu.edu.cn/CN/Y2013/V19/I1/43

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α型和β型PbO₂正极的充放电性能的比较

A Comparative Study of Charge-Discharge Behaviors of α-PbO₂ and β-PbO₂Cathodes

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