skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A study of perfluorocarboxylate ester solvents for lithium ion battery electrolytes

Journal Article · · Journal of Power Sources
 [1];  [2];  [3];  [4];  [4];  [2]
  1. Missouri Univ. of Science and Technology, Rolla, MO (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Missouri Univ. of Science and Technology, Rolla, MO (United States)
  4. Univ. of Missouri, Columbia, MO (United States)
+ Show Author Affiliations

We prepared several high-purity methyl perfluorocarboxylates (>99.5% purity by mole) and investigated as potential fluorine-rich electrolyte solvents in Li-ion batteries. The most conductive electrolyte, 0.1 M lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) in dimethyl perfluoroglutarate (PF5M2) (ionic conductivity 1.87 10-2 mS cm-1), is investigated in Si thin-film half-cells. The solid-electrolyteinterphase (SEI) formed by the PF5M2 electrolyte is composed of similar organic and inorganic moieties and at comparable concentrations as those formed by ethylene carbonate/dimethyl carbonate electrolytes containing LiPF6 and LiTFSI salts. But, the SEI formed by the PF5M2 electrolyte undergoes reversible electrochemical defluorination, contributing to the reversible capacity of the cell and compensating in part for capacity fade in the Si electrode. These electrolytes, though far from ideal, provide an opportunity to further develop predictions of suitable fluorinated molecules for use in battery solvents.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Energy Frontier Research Centers (EFRC) (United States). Fluid Interface Reactions, Structures and Transport Center (FIRST)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
AC05-00OR22725; DGE-1069091; AC05-06OR23100
OSTI ID:
1265852
Alternate ID(s):
OSTI ID: 1253198
Journal Information:
Journal of Power Sources, Vol. 299, Issue C; ISSN 0378-7753
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

References (31)

Fluorinated electrolytes for 5 V lithium-ion battery chemistry journal January 2013
Fluorinated Electrolytes for 5-V Li-Ion Chemistry: Synthesis and Evaluation of an Additive for High-Voltage LiNi 0.5 Mn 1.5 O 4 /Graphite Cell journal January 2014
Syntheses of novel delocalized cations and fluorinated anions, new fluorinated solvents and additives for lithium ion batteries journal December 2014
Reduction Mechanism of Fluoroethylene Carbonate for Stable Solid-Electrolyte Interphase Film on Silicon Anode journal November 2013
Performance Enhancement of 4.8 V Li 1.2 Mn 0.525 Ni 0.175 Co 0.1 O 2 Battery Cathode Using Fluorinated Linear Carbonate as a High-Voltage Additive journal January 2014
Electrolytes and Interphases in Li-Ion Batteries and Beyond journal October 2014
A review of the features and analyses of the solid electrolyte interphase in Li-ion batteries journal September 2010
A high-rate germanium-particle slurry cast Li-ion anode with high Coulombic efficiency and long cycle life journal September 2013
Surface chemistry and morphology of the solid electrolyte interphase on silicon nanowire lithium-ion battery anodes journal April 2009
Role of the LiPF 6 Salt for the Long-Term Stability of Silicon Electrodes in Li-Ion Batteries – A Photoelectron Spectroscopy Study journal January 2013
Silicon nanowire anode: Improved battery life with capacity-limited cycling journal May 2012
Correlation between irreversible capacity and electrolyte solvents degradation probed by NMR in Si-based negative electrode of Li-ion cell journal August 2013
Electrochemical reductive carbonization of polymers derived from hexafluoropropene journal November 1991
Carbonization of Highly Oriented Poly(tetrafluoroethylene) journal February 1999
Nonflammable perfluoropolyether-based electrolytes for lithium batteries journal February 2014
Structural evolution in LiFePO4-based battery materials: In-situ and ex-situ time-of-flight neutron diffraction study journal July 2014
Understanding structural changes in NMC Li-ion cells by in situ neutron diffraction journal June 2014
Chemical Reactions followed by in situ Neutron Powder Diffraction: Chemical Reactions followed by in situ Neutron Powder Diffraction journal October 2014
In-situ neutron diffraction study of the xLi2MnO3·(1 − x)LiMO2 (x = 0, 0.5; M = Ni, Mn, Co) layered oxide compounds during electrochemical cycling journal October 2013
Design of a new lithium ion battery test cell for in-situ neutron diffraction measurements journal March 2013
In Situ Determination of the Liquid/Solid Interface Thickness and Composition for the Li Ion Cathode LiMn 1.5 Ni 0.5 O 4 journal October 2014
Neutron reflectometry studies on the lithiation of amorphous silicon electrodes in lithium-ion batteries journal January 2013
Solid Electrolyte Interphase in Li-Ion Batteries: Evolving Structures Measured In situ by Neutron Reflectometry journal May 2012
Direct measurement of the chemical reactivity of silicon electrodes with LiPF6-based battery electrolytes journal January 2014
Improving the Stability of Nanostructured Silicon Thin Film Lithium-Ion Battery Anodes through Their Controlled Oxidation journal February 2012
High-performance lithium battery anodes using silicon nanowires journal December 2007
The failure mechanism of nano-sized Si-based negative electrodes for lithium ion batteries journal January 2011
Nanosilicon Electrodes for Lithium-Ion Batteries: Interfacial Mechanisms Studied by Hard and Soft X-ray Photoelectron Spectroscopy journal February 2012
13C Solid State NMR Suggests Unusual Breakdown Products in SEI Formation on Lithium Ion Electrodes journal January 2011
Bis(2,2,2-trifluoroethyl) Ether As an Electrolyte Co-solvent for Mitigating Self-Discharge in Lithium–Sulfur Batteries journal May 2014
Enabling LiTFSI-based Electrolytes for Safer Lithium-Ion Batteries by Using Linear Fluorinated Carbonates as (Co)Solvent journal August 2014

Cited By (1)

Evaluating the solid electrolyte interphase formed on silicon electrodes: a comparison of ex situ X-ray photoelectron spectroscopy and in situ neutron reflectometry journal January 2016

Similar Records

Evaluating the solid electrolyte interphase formed on silicon electrodes: A comparison of ex situ X-ray photoelectron spectroscopy and in situ neutron reflectometry
Journal Article · Fri Apr 15 00:00:00 EDT 2016 · Physical Chemistry Chemical Physics. PCCP · OSTI ID:1265852
+4 more
Observing Framework Expansion of Ordered Mesoporous Hard Carbon Anodes with Ionic Liquid Electrolytes via in Situ Small-Angle Neutron Scattering
Journal Article · Mon Jun 26 00:00:00 EDT 2017 · ACS Energy Letters · OSTI ID:1265852
+4 more
Bicyclic imidazolium ionic liquids as potential electrolytes for rechargeable lithium ion batteries
Journal Article · Tue Jan 01 00:00:00 EST 2013 · Journal of Power Sources · OSTI ID:1265852
+4 more

Related Subjects

25 ENERGY STORAGE
SEI
LiTFSI
silicon thin-film
fluorinated electrolyte