Communication - Microscopic view of the ethylene carbonate based lithium-ion battery electrolyte by x-ray scattering

Zhange Feng; Erik Sarnello; Tao Li; Lei Cheng

doi:10.1149/2.0971816jes

Communication - Microscopic view of the ethylene carbonate based lithium-ion battery electrolyte by x-ray scattering

Zhange Feng
, Erik Sarnello
, Tao Li
, Lei Cheng

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

Small angle X-ray scattering studies are conducted to gain insight of the microscopic structures on LiPF₆/carbonates battery electrolyte. The result shows that ethylene carbonate (EC), with a cyclic structure, forms nanoclusters of 1 nm in linear carbonates ethyl methyl carbonate (EMC), diethyl carbonate (DEC), while it fully dissolves in a cyclic carbonate, propylene carbonate (PC). The ion pair of LiPF₆ in carbonates is measured to be 6 Å in dimension, corresponding to the form of contact ion pair. The new microscopic structure the battery electrolyte reported herein is important for the understanding of non-ideal behavior of LiPF₆ carbonate based electrolyte and thus the design of new electrolyte.

Original language	English
Pages (from-to)	A47-A49
Journal	Journal of the Electrochemical Society
Volume	166
Issue number	2
DOIs	https://doi.org/10.1149/2.0971816jes
State	Published - 2019
Externally published	Yes

Funding

We would acknowledge Dr. Venkat Srinivasan for helpful discussions, and Dr. Chi Cheung Su for preparing LiPF6/EC/DMC electrolyte. This research was supported by the Joint Center for Energy Storage Research (JCESR), a U. S. Department of Energy, Energy Innovation Hub. This manuscript has been created in part by UChicago Argonne, LLC, Operator of Argonne National Laboratory (“Argonne”). Argonne, a U. S. Department of Energy Office of Science laboratory, is operated under Contract No. DE-AC02-06CH11357. The U. S. Government retains for itself, and others acting on its behalf, a paid-up nonexclusive, irrevocable worldwide license in said article to reproduce, prepare derivative works, distribute copies to the public, and perform publicly and display publicly, by or on behalf of the Government. This research used resources of the Advanced We would acknowledge Dr. Venkat Srinivasan for helpful discussions, and Dr. Chi Cheung Su for preparing LiPF6/EC/DMC electrolyte. This research was supported by the Joint Center for Energy Storage Research (JCESR), a U. S. Department of Energy, Energy Innovation Hub. This manuscript has been created in part by UChicago Argonne, LLC, Operator of Argonne National Laboratory ("Argonne").Argonne, a U. S. Department of EnergyOffice of Science laboratory, is operated under Contract No. DE-AC02-06CH11357. The U. S. Government retains for itself, and others acting on its behalf, a paid-up nonexclusive, irrevocable worldwide license in said article to reproduce, prepare derivative works, distribute copies to the public, and perform publicly and display publicly, by or on behalf of the Government. This research used resources of the Advanced Photon Source, a U. S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. Photon Source, a U. S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357.

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10.1149/2.0971816jes

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title = "Communication - Microscopic view of the ethylene carbonate based lithium-ion battery electrolyte by x-ray scattering",

abstract = "Small angle X-ray scattering studies are conducted to gain insight of the microscopic structures on LiPF6/carbonates battery electrolyte. The result shows that ethylene carbonate (EC), with a cyclic structure, forms nanoclusters of 1 nm in linear carbonates ethyl methyl carbonate (EMC), diethyl carbonate (DEC), while it fully dissolves in a cyclic carbonate, propylene carbonate (PC). The ion pair of LiPF6 in carbonates is measured to be 6 {\AA} in dimension, corresponding to the form of contact ion pair. The new microscopic structure the battery electrolyte reported herein is important for the understanding of non-ideal behavior of LiPF6 carbonate based electrolyte and thus the design of new electrolyte.",

author = "Zhange Feng and Erik Sarnello and Tao Li and Lei Cheng",

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AU - Feng, Zhange

AU - Sarnello, Erik

AU - Li, Tao

AU - Cheng, Lei

PY - 2019

Y1 - 2019

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AB - Small angle X-ray scattering studies are conducted to gain insight of the microscopic structures on LiPF6/carbonates battery electrolyte. The result shows that ethylene carbonate (EC), with a cyclic structure, forms nanoclusters of 1 nm in linear carbonates ethyl methyl carbonate (EMC), diethyl carbonate (DEC), while it fully dissolves in a cyclic carbonate, propylene carbonate (PC). The ion pair of LiPF6 in carbonates is measured to be 6 Å in dimension, corresponding to the form of contact ion pair. The new microscopic structure the battery electrolyte reported herein is important for the understanding of non-ideal behavior of LiPF6 carbonate based electrolyte and thus the design of new electrolyte.

UR - https://www.scopus.com/pages/publications/85073498690

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JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

IS - 2

ER -

Communication - Microscopic view of the ethylene carbonate based lithium-ion battery electrolyte by x-ray scattering

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