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腈基功能化有机硅电解液添加剂对lifepo4电池低温性能的影响
Authors
张灵志
汪靖伦
赵欣悦
闫晓丹
Publication date
1 January 2019
Publisher
Abstract
合成了一种腈基功能化有机硅化合物3-氰乙基-二乙氧基-甲基硅烷(DESCN),并对其化学结构和电化学窗口进行了表征.采用恒流充放电、扫描电子显微镜(SEM)、X射线光电子能谱(XPS)及电化学阻抗谱(EIS)等方法研究了DESCN添加剂对LiFePO4电池低温性能的影响.结果表明,DESCN化合物能够在电极表面参与形成更薄、更均匀且致密的固体电解质界面(SEI)膜,抑制电解液副反应的发生,减小界面膜阻抗,有利于低温下电极/电解液界面的Li^+扩散和电荷转移,从而提高LiFePO4电池的低温性能
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Institutional Repository of GuangZhou Institute of Energy Conversion, CAS
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oai:ir.giec.ac.cn:344007/31837
Last time updated on 04/12/2021
Institutional Repository of GuangZhou Institute of Energy Conversion, CAS
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.giec.ac.cn:344007/19702
Last time updated on 05/12/2019
Institutional Repository of GuangZhou Institute of Energy Conversion, CAS
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.giec.ac.cn:344007/19700
Last time updated on 05/12/2019