Issue 40, 2017, Issue in Progress
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RSC Advances

Cycling stability of Li metal in a mixed carbonate–ionic liquid electrolyte for lithium secondary batteries†

Ju-Sik Kim, ORCID logo *a   Hongsoo Choi,a   Je-Nam Lee, ORCID logo b   Hyorang Kang,a   Dongmin Ima  and  Hyunseok Kim*a  

* Corresponding authors

a Samsung Advanced Institute of Technology (SAIT), 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Korea
E-mail: jusik.kim@samsung.com, hs13.kim@samsung.com

b Advanced Batteries Research Center, Korea Electronics Technology Institute, 25 Saenari-ro, Bundang-gu, Seongnam 13509, Republic of Korea

Abstract

Polymeric ionic liquids (PILs) containing a poly(ethylene glycol) methacrylate (POEM) coating layer significantly suppresses the reduction of the ionic liquid and of solvent molecules on Li metal anode in the Pyr14TFSI/carbonate electrolyte. Therefore, when Li metal was coated with the PILs–POEM, a cycling test performed with the electrolyte highlights an improved cycling stability.

Graphical abstract: Cycling stability of Li metal in a mixed carbonate–ionic liquid electrolyte for lithium secondary batteries

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Article information

DOI
https://doi.org/10.1039/C7RA03135A
Article type
Paper
Submitted
16 Mar 2017
Accepted
29 Apr 2017
First published
08 May 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 24679-24682

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Cycling stability of Li metal in a mixed carbonate–ionic liquid electrolyte for lithium secondary batteries

J. Kim, H. Choi, J. Lee, H. Kang, D. Im and H. Kim, RSC Adv., 2017, 7, 24679 DOI: 10.1039/C7RA03135A

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