Surface stabilized electrodes for lithium batteries

Title: Surface stabilized electrodes for lithium batteries

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:: Thackeray, Michael M.; Kang, Sun-Ho; Johnson, Christopher S.

Issue Date:: 2015-09-08

OSTI Identifier:: 1346344

Assignee:: UCHICAGO ARGONNE, LLC (Argonne, IL) ANL

Patent Number(s):: 9,130,226

Application Number:: 13/740,682

Contract Number:: AC02-06CH11357

Resource Relation:: Patent File Date: 2013 Jan 14

Research Org:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 25 ENERGY STORAGE

Full Text
View Full Text

Other works cited in this record:

Novel LiCoO₂ Cathode Material with Al₂O₃ Coating for a Li Ion Cell
journal, December 2000

Cho, Jaephil; Kim, Yong Jeong; Park, Byungwoo
Chemistry of Materials, Vol. 12, Issue 12, p. 3788-3791
DOI: 10.1021/cm000511k

Improved capacity retention in rechargeable 4 V lithium/lithium-manganese oxide (spinel) cells
journal, April 1994

Gummow, R. J.; de Kock, A.; Thackeray, M. M.
Solid State Ionics, Vol. 69, Issue 1, p. 59-67
DOI: 10.1016/0167-2738(94)90450-2

Optimization of Insertion Compounds Such as LiMn₂O₄ for Li-Ion Batteries
journal, November 2002

Amatucci, G.; Tarascon, J.-M.
Journal of The Electrochemical Society, Vol. 149, Issue 12, p. K31-K46
DOI: 10.1149/1.1516778

Superior Capacity Retention Spinel Oxyfluoride Cathodes for Lithium-Ion Batteries
journal, March 2006

Choi, W.; Manthiram, A.
Electrochemical and Solid-State Letters, Vol. 9, Issue 5, p. A245-A248
DOI: 10.1149/1.2186022

The Electrochemical Stability of Spinel Electrodes Coated with ZrO₂, Al₂O₃, and SiO₂ from Colloidal Suspensions
journal, January 2004

Kim, J.-S.; Johnson, C. S.; Vaughey, J. T.
Journal of The Electrochemical Society, Vol. 151, Issue 10, p. A1755-A1761
DOI: 10.1149/1.1793713

Advances in manganese-oxide ‘composite’ electrodes for lithium-ion batteries
journal, March 2005

Thackeray, Michael M.; Johnson, Christopher S.; Vaughey, John T.
Journal of Materials Chemistry, Vol. 15, Issue 23, p. 2257-2267
DOI: 10.1039/B417616M

Similar records in DOepatents and OSTI.GOV collections:

Cobalt-stabilized lithium metal oxide electrodes for lithium batteries

Patent Thackeray, Michael M. ; Croy, Jason R. ; Long, Brandon R. ; Park, Joong Sun ; Lee, Eungje

An electrode material comprising a composite lithium metal oxide, which in an initial state has the formula: y[xLi₂MO₃.(1-x)LiM'O₂].(1-y)Li_1+dMn_2-z-dM"_-zO₄; wherein 0.ltoreq.x.ltoreq.1; 0.75.ltoreq.y<1; 01+dMn_2-z-dM"_zO₄ component comprises a spinel structure, each of the Li₂MO₃ and the LiM'O₂ components comprise layered structures, and at least one of M, M', and M" comprises Co. Cells and batteries comprising the electrode material also are described.
Full Text Available September 2018
Long life lithium batteries with stabilized electrodes

Patent Amine, Khalil ; Liu, Jun ; Vissers, Donald R ; Lu, Wenquan

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 some embodiments the additives include a substituted or unsubstituted cyclic or spirocyclic hydrocarbon containing at least one oxygen atom and at least one alkenyl or alkynyl group. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes or olivine or carbon-coated olivine electrodes, the new electrolytes provide batteries with improved calendar and cycle life.
Full Text Available March 2009
Long life lithium batteries with stabilized electrodes

Patent Amine, Khalil ; Liu, Jun ; Vissers, Donald R ; Lu, Wenquan

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 onemore »« less
Full Text Available April 2015
Lithium Metal Oxide Electrodes For Lithium Cells And Batteries

Patent Thackeray, Michael M. ; Johnson, Christopher S. ; Amine, Khalil ; Kim, Jaekook

A lithium metal oxide positive electrode for a non-aqueous lithium cell is disclosed. The cell is prepared in its initial discharged state and has a general formula xLiMO.sub.2.(1-x)Li.sub.2 M'O.sub.3 in which 0
Full Text Available January 2004
Lithium metal oxide electrodes for lithium batteries

Patent Thackeray, Michael M ; Kim, Jeom-Soo ; Johnson, Christopher S

An uncycled electrode for a non-aqueous lithium electrochemical cell including a lithium metal oxide having the formula Li.sub.(2+2x)/(2+x)M'.sub.2x/(2+x)M.sub.(2-2x)/(2+x)O.sub.2-.delta., in which 0.ltoreq.x<1 and .delta. is less than 0.2, and in which M is a non-lithium metal ion with an average trivalent oxidation state selected from two or more of the first row transition metals or lighter metal elements in the periodic table, and M' is one or more ions with an average tetravalent oxidation state selected from the first and second row transition metal elements and Sn. Methods of preconditioning the electrodes are disclosed as are electrochemical cells and batteries containingmore » the electrodes.« less
Full Text Available January 2008