标题:Chemical synthesis of PbO2particles with multiple morphologies and phases and their electrochemical performance as the positive active material
作者:Fan, Na ;Sun, Changhui ;Kong, Delong ;Qian, Yitai
作者机构:[Fan, Na ;Sun, Changhui ;Qian, Yitai ] Hefei National Laboratory for Physical Science at Microscale, Department of Chemistry, University of Science an 更多
通讯作者:Sun, C
来源:Journal of Power Sources
出版年:2014
卷:254
页码:323-328
DOI:10.1016/j.jpowsour.2013.12.077
摘要:In order to explore how to improve the electrochemical performance of the lead-acid battery positive active material, PbO2particles with multiple morphologies and phases including urchin-like and ball-like β-PbO2particles with size of 0.5-1 μm, flower-like α-PbO2particles with size of 1-2 μm are chemically synthesized. These samples are composed of different smaller nanoparticles. The electrode made with urchin-like β-PbO2and flower-like α-PbO2in the ratio of 1:1 can deliver a discharge capacity of 183 mA h g-1at 0.1 C after 100 cycles, and subsequent rate performance test shows that a discharge capacity of 97.2 mA h g-1can be obtained even at 1 C. Moreover, this kind of electrode pretreated in 1 M H2SO4solution displays improved stability of cycle, a capacity of 146.7 mA h g-1can be obtained after 100 cycles, and its corresponding active material utilization ratio can reach 65%. © 2013 Elsevier B.V. All rights reserved.
收录类别:EI
资源类型:期刊论文
TOP