Title: Carbon dioxide treatment of cathodes

Abstract

A method for producing water resistant cathodes is discussed. The method uses mixing cathode powder with solid carbon dioxide to create a mixture and heating the mixture to a temperature. The heating occurs for a time sufficient to cause lithium carbonate coatings to form on the powder. A method for coating lithium-containing cathode surfaces is also discussed. This method uses simultaneously sublimating solid CO₂ and condensing atmospheric water vapor onto surfaces. Afterwards allowing the lithium to react with the sublimated CO₂ for a time sufficient to create a lithium carbonate film on the surface.

Inventors:

Kahvecioglu, Ozgenur; Krumdick, Gregory K.

Issue Date:

2022-04-05

Research Org.:

Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1892803

Patent Number(s):

11296313

Application Number:

15/960,178

Assignee:

UChicago Argonne, LLC (Chicago, IL)

Patent Classifications (CPCs):

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01D - COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

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C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01D - COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM

C01D15/08 - Carbonates

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

C01G53/50 - {of the type [MnO2]n- , e.g. Li

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

C01P2004/80 - Particles consisting of a mixture of two or more inorganic phases
C01P2006/40 - Electric properties

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

H01M10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes
H01M2004/028 - {Positive electrodes}
H01M4/0471 - {involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis}
H01M4/1391 - of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M4/366 - {as layered products}
H01M4/505 - of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M4/525 - of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M4/5825 - {Oxygenated metallic slats or polyanionic structures, e.g. borates, phosphates, silicates, olivines}
H01M4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers

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

Y02E60/10 - Energy storage

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DOE Contract Number:  

AC02-06CH11357

Resource Type:

Patent

Resource Relation:

Patent File Date: 04/23/2018

Country of Publication:

United States

Language:

English