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Title: Electrode materials and lithium battery systems

Patent ·
OSTI ID:1018721
 [1];  [2];  [3]
  1. Downers Grove, IL
  2. Westmont, IL
  3. Naperville, IL
+ Show Author Affiliations

A material comprising a lithium titanate comprising a plurality of primary particles and secondary particles, wherein the average primary particle size is about 1 nm to about 500 nm and the average secondary particle size is about 1 .mu.m to about 4 .mu.m. In some embodiments the lithium titanate is carbon-coated. Also provided are methods of preparing lithium titanates, and devices using such materials.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-31-109-ENG-38
Assignee:
U Chicago Argonne, LLC (Chicago, IL)
Patent Number(s):
7,968,231
Application Number:
US Patent Application 11/444,219
OSTI ID:
1018721
Country of Publication:
United States
Language:
English

References (19)

2-Vinylpyridine as Film-forming Additve to Suppress the Degradation of Carbon Anode by Dissolved Manganese for C/LiMn 2 O 4 Rechargable Battery journal December 2002
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
Reducing Carbon in LiFePO[sub 4]/C Composite Electrodes to Maximize Specific Energy, Volumetric Energy, and Tap Density journal January 2002
Approaching Theoretical Capacity of LiFePO[sub 4] at Room Temperature at High Rates journal January 2001
Processing and properties of two different poly (ortho esters) journal January 2000
Chemical Overcharge and Overdischarge Protection for Lithium-Ion Batteries journal January 2005
Surface/Chemically Modified LiMn[sub 2]O[sub 4] Cathodes for Lithium-Ion Batteries journal January 2002
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
Phospho-olivines as Positive-Electrode Materials for Rechargeable Lithium Batteries journal April 1997
Self-Discharge of LiMn[sub 2]O[sub 4]/C Li-Ion Cells in Their Discharged State journal January 1998
Electronically conductive phospho-olivines as lithium storage electrodes journal September 2002
Storage and cycling performance of Cr-modified spinel at elevated temperatures journal October 2001
Rechargeable cathodes based on Li2CrxMn2−xO4 journal April 1995
Synthesis of a Series of Fluorinated Boronate Compounds and Their Use as Additives in Lithium Battery Electrolytes journal January 2004
Optimized LiFePO[sub 4] for Lithium Battery Cathodes journal January 2001
Optimized Lithium Iron Phosphate for High-Rate Electrochemical Applications journal January 2004
Electroactivity of natural and synthetic triphylite journal July 2001
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

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