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Title: Electrolyte compositions for lithium ion batteries

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.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1244218
Assignee:
UT-BATTELLE, LLC (Oak Ridge, TN) ORNL
Patent Number(s):
9,300,009
Application Number:
13/657,304
Contract Number:
AC05-00OR22725
Resource Relation:
Patent File Date: 2012 Oct 22
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 25 ENERGY STORAGE; 36 MATERIALS SCIENCE

Other works cited in this record:

Electrolyte Additive in Support of 5 V Li Ion Chemistry
journal, January 2011
  • von Cresce, Arthur; Xu, Kang
  • Journal of The Electrochemical Society, Vol. 158, Issue 3, p. A337-A342
  • DOI: 10.1149/1.3532047

Electrochemical investigations of ionic liquids with vinylene carbonate for applications in rechargeable lithium ion batteries
journal, June 2010

Sulfone-Based Electrolytes for Lithium-Ion Batteries
journal, January 2002
  • Xu, Kang; Angell, C. Austen
  • Journal of The Electrochemical Society, Vol. 149, Issue 7, p. A920-A926
  • DOI: 10.1149/1.1483866

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