Title: Cathodes and electrolytes for rechargeable magnesium batteries and methods of manufacture

Abstract

The invention relates to Chevrel-phase materials and methods of preparing these materials utilizing a precursor approach. The Chevrel-phase materials are useful in assembling electrodes, e.g., cathodes, for use in electrochemical cells, such as rechargeable batteries. The Chevrel-phase materials have a general formula of Mo₆Z₈ and the precursors have a general formula of M_xMo₆Z₈. The cathode containing the Chevrel-phase material in accordance with the invention can be combined with a magnesium-containing anode and an electrolyte.

Inventors:

Kumta, Prashant N.; Saha, Partha; Datta, Moni Kanchan; Manivannan, Ayyakkannu

Issue Date:

2018-04-17

Research Org.:

University of Pittsburgh-Of the Commonwealth System of Higher Education, Pittsburgh, PA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1435615

Patent Number(s):

9947962

Application Number:

14/325,891

Assignee:

University of Pittsburgh--Of the Commonwealth System of Higher Education (Pittsburgh, PA)

Patent Classifications (CPCs):

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

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

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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

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

H01M4/5815 - {Sulfides}

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

C01G39/006 - {Compounds containing, besides molybdenum, two or more other elements, with the exception of oxygen or hydrogen}

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

C01P2006/40 - Electric properties
C01P2006/12 - Surface area
C01P2004/61 - Micrometer sized, i.e. from 1-100 micrometer
C01P2002/72 - by d-values or two theta-values, e.g. as X-ray diagram

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B19/007 - {Tellurides or selenides of metals

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

C01P2002/30 - Three-dimensional structures

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

H01M4/581 - {Chalcogenides or intercalation compounds thereof}
H01M10/054 - Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium

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

C01P2004/62 - Submicrometer sized, i.e. from 0.1-1 micrometer

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

H01M2004/028 - {Positive electrodes}

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

C01P2004/38 - cube-like

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

C01G39/06 - Sulfides

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

C01P2002/77 - by unit-cell parameters, atom positions or structure diagrams
C01P2002/76 - by a space-group or by other symmetry indications

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B19/002 - {Compounds containing, besides selenium or tellurium, more than one other element, with -O- and -OH not being considered as anions}

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

H01M10/052 - Li-accumulators

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DOE Contract Number:  

FE0004000

Resource Type:

Patent

Resource Relation:

Patent File Date: 2014 Jul 08

Country of Publication:

United States

Language:

English

Subject:

25 ENERGY STORAGE