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Title: Investigation of Fluoroethylene Carbonate Effects on Tin-based Lithium-Ion Battery Electrodes

Abstract

Electroless plating of tin on copper foil (2-D) and foams (3-D) was used to create carbon- and binder-free thin films for solid electrolyte interphase (SEI) property investigation. When electrochemically cycled vs lithium metal in coin cells, the foam electrodes exhibited better cycling performance than the planar electrodes due to electrode curvature. The effect of the additive/cosolvent fluoroethylene carbonate (FEC) was found to drastically improve the capacity retention and Coulombic efficiency of the cells. The additive amount of 2% FEC is enough to derive the benefits in the cells at a slow (C/9) cycling rate. The interfacial properties of Sn thin film electrodes in electrolyte with/without FEC additive were investigated using in situ electrochemical quartz crystal microbalance with dissipation (EQCM-D). The processes of the decomposition of the electrolyte on the electrode surface and Li alloying/dealloying with Sn were characterized quantitatively by surface mass change at the molecular level. FEC-containing electrolytes deposited less than electrolyte without FEC on the initial reduction sweep, yet increased the overall thickness/mass of SEI after several cyclic voltammetry cycles. EQCM-D studies demonstrate that the mass accumulated per mole of electrons (mpe) was varied in different voltage ranges, which reveals that the reduction products of the electrolyte with/withoutmore » FEC are different.« less

Authors:
 [1];  [2];  [1]
  1. Chemical Science and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439, United States
  2. Department of Chemistry, University of Illinois, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1396003
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: ACS Applied Materials and Interfaces; Journal Volume: 7; Journal Issue: 12
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; EQCM - D; FEC additive; electrochemical quartz crystal microbalance; tin anode

Citation Formats

Yang, Zhenzhen, Gewirth, Andrew A., and Trahey, Lynn. Investigation of Fluoroethylene Carbonate Effects on Tin-based Lithium-Ion Battery Electrodes. United States: N. p., 2015. Web. doi:10.1021/am508593s.
Yang, Zhenzhen, Gewirth, Andrew A., & Trahey, Lynn. Investigation of Fluoroethylene Carbonate Effects on Tin-based Lithium-Ion Battery Electrodes. United States. doi:10.1021/am508593s.
Yang, Zhenzhen, Gewirth, Andrew A., and Trahey, Lynn. Thu . "Investigation of Fluoroethylene Carbonate Effects on Tin-based Lithium-Ion Battery Electrodes". United States. doi:10.1021/am508593s.
@article{osti_1396003,
title = {Investigation of Fluoroethylene Carbonate Effects on Tin-based Lithium-Ion Battery Electrodes},
author = {Yang, Zhenzhen and Gewirth, Andrew A. and Trahey, Lynn},
abstractNote = {Electroless plating of tin on copper foil (2-D) and foams (3-D) was used to create carbon- and binder-free thin films for solid electrolyte interphase (SEI) property investigation. When electrochemically cycled vs lithium metal in coin cells, the foam electrodes exhibited better cycling performance than the planar electrodes due to electrode curvature. The effect of the additive/cosolvent fluoroethylene carbonate (FEC) was found to drastically improve the capacity retention and Coulombic efficiency of the cells. The additive amount of 2% FEC is enough to derive the benefits in the cells at a slow (C/9) cycling rate. The interfacial properties of Sn thin film electrodes in electrolyte with/without FEC additive were investigated using in situ electrochemical quartz crystal microbalance with dissipation (EQCM-D). The processes of the decomposition of the electrolyte on the electrode surface and Li alloying/dealloying with Sn were characterized quantitatively by surface mass change at the molecular level. FEC-containing electrolytes deposited less than electrolyte without FEC on the initial reduction sweep, yet increased the overall thickness/mass of SEI after several cyclic voltammetry cycles. EQCM-D studies demonstrate that the mass accumulated per mole of electrons (mpe) was varied in different voltage ranges, which reveals that the reduction products of the electrolyte with/without FEC are different.},
doi = {10.1021/am508593s},
journal = {ACS Applied Materials and Interfaces},
number = 12,
volume = 7,
place = {United States},
year = {Thu Mar 19 00:00:00 EDT 2015},
month = {Thu Mar 19 00:00:00 EDT 2015}
}