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

Title: Non-aqueous electrolyte for lithium-ion battery

Patent ·
OSTI ID:1237289

A substantially non-aqueous electrolyte solution includes an alkali metal salt, a polar aprotic solvent, and an organophosphorus compound of Formula IA, IB, or IC: ##STR00001## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently hydrogen, halogen, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heterocyclyl, heteroaryl, alkoxy, alkenoxy, alkynoxy, cycloalkoxy, aryloxy, heterocyclyloxy, heteroaryloxy, siloxyl, silyl, or organophosphatyl; R.sup.5 and R.sup.6 are each independently alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heterocyclyl, or heteroaryl; R.sup.7 is ##STR00002## and R.sup.8, R.sup.9 and R.sup.10 are each independently alkyl, cycloalkyl, aryl, heterocyclyl, or heteroaryl; provided that if the organophosphorus compound is of Formula IB, then at least one of R.sup.5, and R.sup.6 are other than hydrogen, alkyl, or alkenyl; and if the organophosphorus compound is of Formula IC, then the electrolyte solution does not include 4-methylene-1,3-dioxolan-2-one or 4,5-dimethylene-1,3-dioxolan-2-one.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-31-109-ENG-38
Assignee:
UCHICAGO ARGONNE, LLC
Patent Number(s):
9,246,187
Application Number:
13/803,725
OSTI ID:
1237289
Resource Relation:
Patent File Date: 2013 Mar 14
Country of Publication:
United States
Language:
English

References (7)

Origin of Graphite Exfoliation An Investigation of the Important Role of Solvent Cointercalation journal January 2000
Lithium Bis(oxalato)borate Stabilizes Graphite Anode in Propylene Carbonate journal September 2002
Rechargeable lithium electrochemical cell patent May 1997
Long life lithium batteries with stabilized electrodes patent June 2011
Positive electrode material for lithium ion batteries patent-application August 2004
Long life lithium batteries with stabilized electrodes patent-application January 2005
Non-Aqueous Electrolytic Solutions and Electrochemical Cells Comprising the Same patent-application January 2009