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Title: Surface stabilized electrodes for lithium batteries

Abstract

A stabilized electrode comprising a metal oxide or lithium-metal-oxide electrode material is formed by contacting a surface of the electrode material, 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, to etch the surface of the electrode material and introduce stabilizing anions and cations from the salt into said surface. The structure of the bulk of the electrode material 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.

Inventors:
; ;
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1346344
Patent Number(s):
9130226
Application Number:
13/740,682
Assignee:
UCHICAGO ARGONNE, LLC (Argonne, IL)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Jan 14
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE

Citation Formats

Thackeray, Michael M., Kang, Sun-Ho, and Johnson, Christopher S. Surface stabilized electrodes for lithium batteries. United States: N. p., 2015. Web.
Thackeray, Michael M., Kang, Sun-Ho, & Johnson, Christopher S. Surface stabilized electrodes for lithium batteries. United States.
Thackeray, Michael M., Kang, Sun-Ho, and Johnson, Christopher S. Tue . "Surface stabilized electrodes for lithium batteries". United States. https://www.osti.gov/servlets/purl/1346344.
@article{osti_1346344,
title = {Surface stabilized electrodes for lithium batteries},
author = {Thackeray, Michael M. and Kang, Sun-Ho and Johnson, Christopher S.},
abstractNote = {A stabilized electrode comprising a metal oxide or lithium-metal-oxide electrode material is formed by contacting a surface of the electrode material, 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, to etch the surface of the electrode material and introduce stabilizing anions and cations from the salt into said surface. The structure of the bulk of the electrode material 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {9}
}

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Works referenced in this record:

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Novel LiCoO2 Cathode Material with Al2O3 Coating for a Li Ion Cell
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The Electrochemical Stability of Spinel Electrodes Coated with ZrO2, Al2O3, and SiO2 from Colloidal Suspensions
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Advances in manganese-oxide ‘composite’ electrodes for lithium-ion batteries
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  • 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