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Title: Surface protected lithium-metal-oxide electrodes

Patent ·
OSTI ID:1248481

A lithium-metal-oxide positive electrode having a layered or spinel structure for a non-aqueous lithium electrochemical cell and battery is disclosed comprising electrode particles that are protected at the surface from undesirable effects, such as electrolyte oxidation, oxygen loss or dissolution by one or more lithium-metal-polyanionic compounds, such as a lithium-metal-phosphate or a lithium-metal-silicate material that can act as a solid electrolyte at or above the operating potential of the lithium-metal-oxide electrode. The surface protection significantly enhances the surface stability, rate capability and cycling stability of the lithium-metal-oxide electrodes, particularly when charged to high potentials.

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):
9,306,210
Application Number:
14/326,845
OSTI ID:
1248481
Resource Relation:
Patent File Date: 2014 Jul 09
Country of Publication:
United States
Language:
English

References (24)

Novel LiCoO2 Cathode Material with Al2O3 Coating for a Li Ion Cell journal December 2000
High-Performance ZrO2-Coated LiNiO2 Cathode Material journal January 2001
Superior Capacity Retention Spinel Oxyfluoride Cathodes for Lithium-Ion Batteries journal March 2006
Lithium–manganese oxide electrodes with layered–spinel composite structures xLi2MnO3·(1−x)Li1+yMn2−yO4 (0<x<1, 0⩽y⩽0.33) for lithium batteries journal May 2005
Effect of a ZrO2 Coating on the Structure and Electrochemistry of LixCoO2 When Cycled to 4.5 V journal January 2002
Optimization of Insertion Compounds Such as LiMn2O4 for Li-Ion Batteries journal November 2002
The significance of the Li2MnO3 component in ‘composite’ xLi2MnO3·(1−x)LiMn0.5Ni0.5O2 electrodes journal October 2004
The Effects of Acid Treatment on the Electrochemical Properties of 0.5 Li2MnO3 ∙ 0.5 LiNi0.44Co0.25Mn0.31O2 Electrodes in Lithium Cells journal January 2006
Layered Li(Li0.2Ni0.15+0.5zCo0.10Mn0.55−0.5z)O2−zFz cathode materials for Li-ion secondary batteries journal August 2005
Stabilization of xLi2MnO3 ⋅  ( 1 − x ) LiMO2 Electrode Surfaces  ( M = Mn ,  Ni ,  Co )  with Mildly Acidic, Fluorinated Solutions journal January 2008
The Electrochemical Stability of Spinel Electrodes Coated with ZrO2, Al2O3, and SiO2 from Colloidal Suspensions journal January 2004
Electrochemical and Structural Properties of xLi2M‘O3 ·(1− x )LiMn0.5Ni0.5O2 Electrodes for Lithium Batteries (M‘ = Ti, Mn, Zr; 0 ≤ x ⩽ 0.3) journal May 2004
Improvement of High-Voltage Cycling Behavior of Surface-Modified Li[Ni[sub 1∕3]Co[sub 1∕3]Mn[sub 1∕3]]O[sub 2] Cathodes by Fluorine Substitution for Li-Ion Batteries journal July 2005
Surface Modification of High Capacity Layered Li [ Li0.2Mn0.54Ni0.13Co0.13 ] O2 Cathodes by AlPO4 journal January 2008
Improvement of structural and electrochemical properties of AlF3-coated Li[Ni1/3Co1/3Mn1/3]O2 cathode materials on high voltage region journal April 2008
AlF3-Coating to Improve High Voltage Cycling Performance of Li[Ni1∕3]Co1∕3]Mn1∕3]O2 Cathode Materials for Lithium Secondary Batteries journal January 2007
Improved capacity retention in rechargeable 4 V lithium/lithium-manganese oxide (spinel) cells journal April 1994
Controlled Nanoparticle Metal Phosphates (Metal = Al , Fe, Ce, and Sr) Coatings on LiCoO2 Cathode Materials journal January 2005
Synthesis and Characterization of Carbon-Coated Lithium Transition Metal Phosphates LiMPO4 (M = Fe , Mn, Co, Ni) Prepared via a Nonaqueous Sol-Gel Route journal January 2006
Electrochemical cell patent May 1994
Lithium metal oxide electrodes for lithium cells and batteries patent January 2004
Lithium metal oxide electrodes for lithium cells and batteries patent January 2004
Coated lithium mixed oxide particles and a process for producing them patent-application November 2001
Non-aqueous electrolyte secondary battery patent-application September 2006