Effects of Solute-Solvent Hydrogen Bonding on Nonaqueous Electrolyte Structure

被引：33

作者：

Schroder, Kjell W. ^{[1
,2
,3
]}

Dylla, Anthony G. ^{[2
,3
]}

Bishop, Logan D. C. ^{[2
,3
]}

Kamilar, Elizabeth R. ^{[2
,3
]}

Saunders, Jennette ^{[2
,3
]}

Webb, Lauren J. ^{[1
,2
,3
]}

Stevenson, Keith J. ^{[1
,2
,3
]}

机构：

[1] Univ Texas Austin, Texas Mat Inst, Mat Sci & Engn Program, Austin, TX 78712 USA

[2] Univ Texas Austin, Dept Chem, Austin, TX 78712 USA

[3] Univ Texas Austin, Ctr Nano & Mol Sci, Austin, TX 78712 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2015年 / 6卷 / 15期

关键词：

SUPERCONCENTRATED ELECTROLYTES; ION BATTERIES; LITHIUM;

D O I：

10.1021/acs.jpclett.5b01216

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We investigate the source of Raman background signal commonly misidentified as fluorescence in nonaqueous electrolytes via a variety of spectroscopies (Raman, fluorescence, NMR) and find evidence of hydrogen-bonding interactions. This hydrogen bonding gives rise to broadband anharmonic vibrational modes and suggests that anions play an important and underappreciated role in the structure of nonaqueous electrolytes. Controlling electrolyte structure has important applications in advancing in operando spectroscopy measurements as well as understanding the stability of high concentration electrolytes for next-generation electrochemical energy storage devices.

引用

页码：2888 / 2891

页数：4

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