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Title: Long life lithium batteries with stabilized electrodes

Patent ·
OSTI ID:1178256

The present invention relates to non-aqueous electrolytes having electrode stabilizing additives, stabilized electrodes, and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, and an electrode stabilizing additive. In certain electrolytes, the alkali metal salt is a bis(chelato)borate and the additives include substituted or unsubstituted linear, branched or cyclic hydrocarbons comprising at least one oxygen atom and at least one aryl, alkenyl or alkynyl group. In other electrolytes, the additives include a substituted aryl compound or a substituted or unsubstituted heteroaryl compound wherein the additive comprises at least one oxygen atom. There are also provided methods of making the electrolytes and batteries employing the electrolytes. The invention also provides for electrode materials. Cathodes of the present invention may be further stabilized by surface coating the particles of the spinel or olivine with a material that can neutralize acid or otherwise lessen or prevent leaching of the manganese or iron ions. In some embodiments the coating is polymeric and in other embodiments the coating is a metal oxide such as ZrO.sub.2, TiO.sub.2, ZnO, WO.sub.3, Al.sub.2O.sub.3, MgO, SiO.sub.2, SnO.sub.2 AlPO.sub.4, Al(OH).sub.3, a mixture of any two or more thereof.

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 (Chicago, IL)
Patent Number(s):
9,012,096
Application Number:
11/338,902
OSTI ID:
1178256
Resource Relation:
Patent File Date: 2006 Jan 24
Country of Publication:
United States
Language:
English

References (56)

Storage and cycling performance of Cr-modified spinel at elevated temperatures journal October 2001
Electroactivity of natural and synthetic triphylite journal July 2001
Rechargeable cathodes based on Li2CrxMn2−xO4 journal April 1995
Lithium extraction/insertion in LiFePO4: an X-ray diffraction and Mössbauer spectroscopy study journal May 2000
Lithium Bis(oxalato)borate Stabilizes Graphite Anode in Propylene Carbonate journal September 2002
Surface/Chemically Modified LiMn[sub 2]O[sub 4] Cathodes for Lithium-Ion Batteries journal January 2002
Approaching Theoretical Capacity of LiFePO[sub 4] at Room Temperature at High Rates journal January 2001
Self-Discharge of LiMn[sub 2]O[sub 4]/C Li-Ion Cells in Their Discharged State journal January 1998
Reducing Carbon in LiFePO[sub 4]/C Composite Electrodes to Maximize Specific Energy, Volumetric Energy, and Tap Density journal January 2002
Optimized LiFePO[sub 4] for Lithium Battery Cathodes journal January 2001
Optimized Lithium Iron Phosphate for High-Rate Electrochemical Applications journal January 2004
Electronically conductive phospho-olivines as lithium storage electrodes journal September 2002
Phospho-olivines as Positive-Electrode Materials for Rechargeable Lithium Batteries journal April 1997
Failure Mechanism and Improvement of the Elevated Temperature Cycling of LiMn[sub 2]O[sub 4] Compounds Through the Use of the LiAl[sub x]Mn[sub 2−x]O[sub 4−z]F[sub z] Solid Solution journal January 2001
Influence of the Cr Content on the Electrochemical Behavior of the LiCr[sub y]Mn[sub 2−y]O[sub 4] (0≤y≤1) Compounds: III. Galvanostatic Study of Bulk and Superficial Processes journal January 2001
Processing and properties of two different poly (ortho esters) journal January 2000
Synthesis of a Series of Fluorinated Boronate Compounds and Their Use as Additives in Lithium Battery Electrolytes journal January 2004
Chemical Overcharge and Overdischarge Protection for Lithium-Ion Batteries journal January 2005
Weakly Coordinating Anions, and the Exceptional Conductivity of Their Nonaqueous Solutions journal January 2001
Preparation of ketene acetals patent April 1985
Overcharge protection of secondary, non-aqueous batteries patent August 1989
Layer for stabilization of lithium anode patent January 1996
Non-aqueous electrolyte secondary battery patent January 1998
Electrolytic solution for lithium secondary battery and lithium secondary battery using the same patent March 1998
Non-aqueous electrolyte secondary cell having shuttle agent patent June 1998
Secondary battery patent October 1998
Wide electrochemical window solvents for use in electrochemical devices and electrolyte solutions incorporating such solvents patent December 1998
Chemical overcharge protection of lithium and lithium-ion secondary batteries patent January 1999
Solid polymer electrolyte electrochemical storage cell containing a redox shuttle additive for overcharge protection patent December 1999
Electrochemical storage cell containing a substituted anisole or di-anisole redox shuttle additive for overcharge protection and suitable for use in liquid organic and solid polymer electrolytes patent April 2000
Additives for overcharge protection in non-aqueous rechargeable lithium batteries patent June 2000
Secondary battery patent March 2001
Nonaqueous secondary battery patent May 2001
Non-aqueous electrolyte battery patent September 2001
Electrolyte for a rechargeable cell patent May 2002
High energy density secondary battery for repeated use patent May 2002
Lithium bisoxalatoborate, the production thereof and its use as a conducting salt patent January 2003
Method for manufacturing galvanic elements having a liquid organic electrolyte patent August 2004
Electrolyte patent September 2004
High ionic conductivity gel polymer electrolyte for rechargeable polymer batteries patent January 2005
Nonaqueous secondary cell patent August 2006
Additive for enhancing the performance of electrochemical cells patent February 2007
Electrolyte for use in electrochemical devices patent September 2009
Long life lithium batteries with stabilized electrodes patent June 2011
Alkylspiroborate salts for use in electrochemical cells patent-application October 2001
Lithium-based active materials and preparation thereof patent-application April 2002
Lithium secondary cell and nonaqueous electrolyte patent-application February 2004
Rechargeable lithium electrochemical cell patent-application February 2004
Nonaqueous electrolytic solution and lithium secondary batteries patent-application June 2004
Mesoporous network electrode for electrochemical cell patent-application July 2004
Lithium based electrochemical cell systems patent-application August 2004
Positive electrode material for lithium ion batteries patent-application August 2004
Electrodes for lithium batteries patent-application September 2004
Battery having electrolyte including one or more additives patent-application May 2005
Overcharge protection for electrochemical cells patent-application October 2005
Long life lithium batteries with stabilized electrodes patent-application July 2006