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Electrolyte compositions for lithium ion batteries

Patent ·
OSTI ID:1244218
; ;
The invention is directed in a first aspect to an ionic liquid of the general formula Y.sup.+Z.sup.-, wherein Y.sup.+ is a positively-charged component of the ionic liquid and Z.sup.- is a negatively-charged component of the ionic liquid, wherein Z.sup.- is a boron-containing anion of the following formula: ##STR00001## The invention is also directed to electrolyte compositions in which the boron-containing ionic liquid Y.sup.+Z.sup.- is incorporated into a lithium ion battery electrolyte, with or without admixture with another ionic liquid Y.sup.+X.sup.- and/or non-ionic solvent and/or non-ionic solvent additive.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-BATTELLE, LLC (Oak Ridge, TN)
Patent Number(s):
9,300,009
Application Number:
13/657,304
OSTI ID:
1244218
Country of Publication:
United States
Language:
English

References (10)

Sulfone-Based Electrolytes for Lithium-Ion Batteries journal January 2002
New Guanidinium-based Room-temperature Ionic Liquids. Substituent and Anion Effect on Density and Solubility in Water journal January 2010
Synthesis and Characterization of Network Type Single Ion Conductors journal March 2004
Electrolyte Additive in Support of 5 V Li Ion Chemistry journal January 2011
Electrochemical Windows of Sulfone-Based Electrolytes for High-Voltage Li-Ion Batteries journal October 2011
Electrochemical investigations of ionic liquids with vinylene carbonate for applications in rechargeable lithium ion batteries journal June 2010
Effect of Vinylene Carbonate Additive in Li-Ion Batteries: Comparison of LiCoO[sub 2]∕C, LiFePO[sub 4]∕C, and LiCoO[sub 2]∕Li[sub 4]Ti[sub 5]O[sub 12] Systems journal January 2009
Vinyl ethylene sulfite as a new additive in propylene carbonate-based electrolyte for lithium ion batteries journal January 2009
Chloride-Free Method to Synthesise New Ionic Liquids with Mixed Borate Anions journal February 2009
A New Class of Electrochemically and Thermally Stable Lithium Salts for Lithium Battery Electrolytes journal January 1996

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Related Subjects

25 ENERGY STORAGE
36 MATERIALS SCIENCE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY