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Title: Surface stabilized electrodes for lithium batteries

Patent ·
OSTI ID:1531847
; ;

A method of stabilizing a metal oxide or lithium-metal-oxide electrode comprises contacting a surface of the electrode, prior to cell assembly, with an aqueous or a non-aqueous acid solution having a pH greater than 4 but less than 7 and containing a stabilizing salt, for a time and at a temperature sufficient to etch the surface of the electrode and introduce stabilizing anions and cations from the salt into said surface. The structure of the bulk of the electrode remains unchanged during the acid treatment. The stabilizing salt comprises fluoride and at least one cationic material selected from the group consisting of ammonium, phosphorus, titanium, silicon, zirconium, aluminum, and boron.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-06CH11357
Assignee:
UChicago Argonne, LLC (Chicago, IL)
Patent Number(s):
8,383,077
Application Number:
13/396,338
OSTI ID:
1531847
Resource Relation:
Patent File Date: 2012-02-14
Country of Publication:
United States
Language:
English

References (13)

Optimization of Insertion Compounds Such as LiMn2O4 for Li-Ion Batteries journal November 2002
High-Performance ZrO2-Coated LiNiO2 Cathode Material journal January 2001
Advances in manganese-oxide ‘composite’ electrodes for lithium-ion batteries
  • Thackeray, Michael M.; Johnson, Christopher S.; Vaughey, John T.
  • Journal of Materials Chemistry, Vol. 15, Issue 23, p. 2257-2267 https://doi.org/10.1039/b417616m
journal March 2005
Simplified preparation of LiPF.sub.6 based electolyte for non-aqueous batteries patent March 1996
Lithium metal oxide electrodes for lithium cells and batteries patent January 2004
Lithium metal oxide electrodes for lithium batteries patent January 2008
Positive active material for rechargeable lithium battery and method of preparing same patent-application November 2006
Improved capacity retention in rechargeable 4 V lithium/lithium-manganese oxide (spinel) cells journal April 1994
Effect of a ZrO2 Coating on the Structure and Electrochemistry of LixCoO2 When Cycled to 4.5 V journal January 2002
Lithium metal oxide electrodes for lithium batteries patent-application August 2006
Superior Capacity Retention Spinel Oxyfluoride Cathodes for Lithium-Ion Batteries journal March 2006
Novel LiCoO2 Cathode Material with Al2O3 Coating for a Li Ion Cell journal December 2000
The Electrochemical Stability of Spinel Electrodes Coated with ZrO2, Al2O3, and SiO2 from Colloidal Suspensions journal January 2004

Cited By (6)

Cathode active materials having improved particle morphologies patent September 2018
Synthesized, surface-functionalized, acidified metal oxide materials for energy storage, catalytic, photovoltaic and sensor applications patent October 2017
Cathode active materials for lithium-ion batteries patent November 2018
Cathode active materials for lithium-ion batteries patent December 2018
High-density precursor for manufacture of composite metal oxide cathodes for Li-ion batteries patent July 2017
High-density precursor for manufacture of composite metal oxide cathodes for Li-ion batteries patent November 2018

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