The Influence of Cation Structure on the Chemical-Physical Properties of Protic Ionic Liquids

The Influence of Cation Structure on the Chemical-Physical Properties of Protic Ionic Liquids
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阳离子结构对质子离子液体化学物理性质的影响

DOI:
10.1021/acs.jpcc.6b01945
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发表时间:
2016
影响因子:
3.7
通讯作者:
A. Balducci
A. Balducci
中科院分区:
化学3区
文献类型:
--
作者:
T. Vogl;P. Goodrich;J. Jacquemin;S. Passerini;A. Balducci

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研究了5种不同阳离子对双(三氟甲磺酰基)亚胺(TFSI -)基质子离子液体(PILs)理化性质的影响。我们发现,这些pil的粘度、离子电导率、密度和热性能受到质子阳离子结构的强烈影响。此外,利用拉曼光谱研究了阳离子结构对锂离子电池(LIBs)电解质配位的影响。这项研究清楚地表明,锂离子基电解质中的锂平均配位数受到(环)大小和阳离子结构上质子数的强烈影响,更重要的是,它可能显著低于含有非质子离子液体(ail)的电解质(60%以上)。然后,研究了这些基于pil的电解质的电化学性能,并得出了一些关于它们在lib中的适用性的结论。
In this study we investigated the influence of five different cations on the physical–chemical properties of protic ionic liquids (PILs) based on bis(trifluoromethanesulfonyl)imide (TFSI–). We showed that the viscosities, ionic conductivities, densities, and thermal properties of these PILs are strongly affected by the structure of the protic cation. Furthermore, the influence of the cation structure on the lithium coordination was investigated by Raman spectroscopy for all investigated PIL-based electrolytes for lithium ion batteries (LIBs). This investigation clearly demonstrates that the lithium average coordination number in PIL-based electrolytes is strongly affected by (ring) size and the number of protons on the cation structure and, more importantly, it might be significantly lower (more than 60%) than that of electrolytes containing aprotic ionic liquids (AILs). Electrochemical performances of these PIL-based electrolytes were then also investigated to address some conclusions on their applicability for LIBs.
DOI: 10.1021/jp0533628
发表时间: 2005-09-01
影响因子: 3.3
作者:
Tsuzuki, S;Tokuda, H;Watanabe, M
通讯作者: Watanabe, M
DOI: --
发表时间: 2014
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发表时间: 2011
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作者:
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发表时间: 2009-07-16
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