二氯二甲基硅烷对锂硫电池性能的影响 |
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引用本文: | 刘云霞,郑军委,文家新. 二氯二甲基硅烷对锂硫电池性能的影响[J]. 广州化工, 2014, 0(6): 63-64,93 |
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作者姓名: | 刘云霞 郑军委 文家新 |
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作者单位: | [1]重庆工业职业技术学院,重庆401120 [2]2重庆八中,重庆400030 |
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基金项目: | 重庆市教委科研项目(KJl3106),重庆工业职业技术学院院级重点科研项目(No:GZY201202-ZK). |
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摘 要: | 采用二氯二甲基硅烷对锂片表面进行预处理,以提高电极的界面稳定性。将预处理的锂片与硫电极组装成锂硫电池,并对其进行充放电测试。结果表明,与以未经预处理锂片作负极的锂硫电池相比,经二氯二甲基硅烷预处理5 min的锂片作负极的锂硫电池的循环性能、倍率性能及库伦效率均得到较大的改善,且预处理时间对电池的性能有一定的影响。
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关 键 词: | 锂硫电池 表面预处理 钝化层 二氯二甲基硅烷 |
The Effect of Dichlorodimethylsilane on the Properties of Li- S Cell |
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Affiliation: | LIU Yun - xia1 ZHENG Jun - wei2 WEN Jia - xin1 ( 1 Chongqing Industry Polytechnic College, Chongqing 401120 ; 2 NO. 8 Secondary School of Chongqing, Chongqing 400030, China) |
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Abstract: | Dichlorodimethylsilane was used to pre - treat the surface of Li electrode in order to passivate Li electrode improve its interfacial stability. Then the pretreated lithium was used as anode to form Li - S cell with sulfur cathode, the cell was tested by the charge/discharge tests. The results showed that compared with that of bare Li electrode, the with Li electrode treated by dichlorodimethylsilane for 5 min had higher charge/discharge efficiency, better harging performance and longer cycle life, and the pretreated time had an effect on the electrochemical properties of Li - S cell. |
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Keywords: | Li - S cell surface pretreatment passivating layer dichlorodimethylsilane |
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