Sodium-halogen secondary cell

Bhavaraju, Sai; Robins, Mathew; Eccleston, Alexis

Title: Sodium-halogen secondary cell

Abstract

An intermediate temperature sodium-halogen secondary cell that includes a negative electrode compartment housing a negative, molten sodium-based electrode and a positive electrode compartment housing a current collector disposed in a highly conductive molten positive electrolyte. A sodium halide (NaX) positive electrode is disposed in a molten positive electrolyte comprising one or more AlX3 salts, wherein X may be the same or different halogen selected from Cl, Br, and I, wherein the ratio of NaX to AlX3 is greater than or equal to one. A sodium ion conductive solid electrolyte membrane separates the molten sodium negative electrode from the molten positive electrolyte. The secondary cell operates at a temperature in the range from about 80° C. to 210° C.

Inventors:: Bhavaraju, Sai; Robins, Mathew; Eccleston, Alexis

Issue Date:: 2020-12-01

Research Org.:: Field Upgrading USA, Inc., Broomfield, CO (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1771696

Patent Number(s):: 10854929

Application Number:: 14/956,078

Assignee:: Field Upgrading USA, Inc. (Broomfield, CO)

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

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M2300/0054 - Halogenides
H01M4/388 - {Halogens}

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
H01M2300/0068 - inorganic
H01M10/4235 - {Safety or regulating additives or arrangements in electrodes, separators or electrolyte
H01M10/0562 - Solid materials
H01M10/36 - Accumulators not provided for in groups H01M10/05-H01M10/34
H01M4/661 - {Metal or alloys, e.g. alloy coatings
H01M10/0563 - Liquid materials, e.g. for Li-SOCl2 cells
H01M4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M10/054 - Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
H01M10/399 - {Cells with molten salts}
H01M4/381 - {Alkaline or alkaline earth metals elements

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DOE Contract Number:: 1189875

Resource Type:: Patent

Resource Relation:: Patent File Date: 12/01/2015

Country of Publication:: United States

Language:: English

Citation Formats


                    Bhavaraju, Sai, Robins, Mathew, and Eccleston, Alexis. Sodium-halogen secondary cell.  United States: N. p., 2020. 
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                    Bhavaraju, Sai, Robins, Mathew, & Eccleston, Alexis. Sodium-halogen secondary cell.  United States.

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                    Bhavaraju, Sai, Robins, Mathew, and Eccleston, Alexis. Tue .  
        "Sodium-halogen secondary cell".  United States.  https://www.osti.gov/servlets/purl/1771696.

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@article{osti_1771696,

  title        = {Sodium-halogen secondary cell},

  author       = {Bhavaraju, Sai and Robins, Mathew and Eccleston, Alexis},

  abstractNote = {An intermediate temperature sodium-halogen secondary cell that includes a negative electrode compartment housing a negative, molten sodium-based electrode and a positive electrode compartment housing a current collector disposed in a highly conductive molten positive electrolyte. A sodium halide (NaX) positive electrode is disposed in a molten positive electrolyte comprising one or more AlX3 salts, wherein X may be the same or different halogen selected from Cl, Br, and I, wherein the ratio of NaX to AlX3 is greater than or equal to one. A sodium ion conductive solid electrolyte membrane separates the molten sodium negative electrode from the molten positive electrolyte. The secondary cell operates at a temperature in the range from about 80° C. to 210° C.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {12}

}

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