The Effect of TiO2 Nanoparticles and the Liquid-Phase Therapy on the Resistance of the Interphase Lithium/Polymer Electrolyte with the Introduction of Ionic Liquid

IF 1.1 4区 工程技术 Q4 ELECTROCHEMISTRY
G. R. Baymuratova, A. V. Yudina, K. G. Khatmullina, A. A. Slesarenko, O. V. Yarmolenko
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引用次数: 0

Abstract

It is studied how the treatment of a metal lithium surface with a 1 M LiN(CF3SO2)2 solution in the 1,3-dioxolane/1,2-dimethoxyethane (2 : 1) mixture affects the resistance of the interphases formed by lithium with the polymer and nanocomposite electrolytes based on the 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid. The liquid-phase therapy is shown to reduce the resistance at the Li/electrolyte interphase by a factor of 2.5 at room temperature and extend the working temperature range to –30°C. The introduction of TiO2 nanoparticles into the polymer electrolyte, along with the liquid-phase therapy of both the cathode and the Li-anode, provides a high and stable discharge capacity of the Li//LiFePO4 battery for 100 charge–discharge cycles.

Abstract Image

引入离子液体后 TiO2 纳米粒子和液相疗法对锂/聚合物相间电解质电阻的影响
研究了在 1,3-二氧戊环/1,2-二甲氧基乙烷 (2 : 1) 混合物中用 1 M LiN(CF3SO2)2 溶液处理金属锂表面如何影响锂与基于 1-ethyl-3-methylimidazolium tetrafluoroborate 离子液体的聚合物和纳米复合电解质形成的相间电阻。研究表明,在室温下,液相疗法可将锂/电解质相间电阻降低 2.5 倍,并将工作温度范围扩大到 -30°C。在聚合物电解质中引入 TiO2 纳米粒子以及对阴极和锂阳极进行液相处理,可使锂//LiFePO4 电池在 100 次充放电循环中保持高而稳定的放电容量。
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来源期刊
Russian Journal of Electrochemistry
Russian Journal of Electrochemistry 工程技术-电化学
CiteScore
1.90
自引率
8.30%
发文量
102
审稿时长
6 months
期刊介绍: Russian Journal of Electrochemistry is a journal that covers all aspects of research in modern electrochemistry. The journal welcomes submissions in English or Russian regardless of country and nationality of authors.
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