BROWSE

Related Scientist

CMSD's photo.

CMSD
분자 분광학 및 동력학 연구단
more info

ITEM VIEW & DOWNLOAD

Solvation structure of phosphonium ionic liquid/CH3SCN mixture as electrolytes for Li-ion batteries: Infrared pump-probe spectroscopic studies

Cited 0 time in webofscience Cited 0 time in scopus
27 Viewed 0 Downloaded
Title
Solvation structure of phosphonium ionic liquid/CH3SCN mixture as electrolytes for Li-ion batteries: Infrared pump-probe spectroscopic studies
Author(s)
Prabhat Kumar Sahu; Jungyu Kim; Kwanghee Park; Eunchan Kim; Saptarsi Mondal; Kyungwon Kwak; Minhaeng Cho
Publication Date
2022-02
Journal
Bulletin of the Korean Chemical Society, v.43, no.2, pp.215 - 221
Publisher
대한화학회
Abstract
Lithium-ion battery (LIB) electrolytes based on room-temperature ionic liquids (RTIL) are promising as safe and sustainable LIB electrolytes. However, there are no reports on the solvation structure and dynamics of RTIL due to the existence of various solvation species in RTIL. Here, we investigated the solvation structure and dynamics of binary mixtures of the phosphonium ionic liquid, tributyl(2-methoxyethyl)phosphonium bis(trifluoromethanesulfonyl)imide (P444102TFSI), and methylthiocyanate (CH3SCN), with ultrafast mid-IR Spectroscopy. The changes of vibrational and rotational dynamics of CH3SCN center dot center dot center dot Li+ complex and free CH3SCN with an increase in CH3SCN concentration suggest the presence of at least four solvation species, providing superior resolving power for various solvation species existing in complex LIB electrolytes. Our experimental results show that the environment of free CH3SCN and CH3SCN center dot center dot center dot Li+ complex changes drastically with change in CH3SCN mole fraction and Li salt concentration in the mixture. We expect that this can affect the Li-ion transport mechanism in the IL-based electrolytes.
URI
https://pr.ibs.re.kr/handle/8788114/12062
DOI
10.1002/bkcs.12463
ISSN
0253-2964
Appears in Collections:
Center for Molecular Spectroscopy and Dynamics(분자 분광학 및 동력학 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse