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