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Title: Alkaline battery electrolyte useful for a rechargeable alkaline electrochemical cell

Abstract

The invention provides an electrolyte composition which is adapted for use in a rechargeable alkaline electrochemical cell, and especially preferably adapted for use in a rechargeable manganese zinc electrochemical cell, which electrolyte composition imparts improved performance characteristics to the rechargeable alkaline electrochemical cell. The electrolyte composition includes an electrolyte composition in which contains a potassium hydroxide and lithium hydroxide in a concentration and a respective molar ratio of about 1 molar potassium hydroxide to 2.5-3.7 (preferably 1:3) molar lithium hydroxide (1 M KOH:2.5-3.7 M LiOH). Also provided are alkaline electrochemical cells and alkaline batteries comprising the electrolyte compositions. The resultant alkaline electrochemical cells and alkaline batteries exhibit improved performance characteristics, as the electrolyte composition significantly inhibits the passivation of Zn, and may also be useful in this role in other battery chemistries.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Princeton Univ., NJ (United States); Univ. of California, Oakland, CA (United States)
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1632445
Patent Number(s):
10535901
Application Number:
15/560,599
Assignee:
The Trustees of Princeton University (Princeton, NJ); The Regents of the University of California (Oakland, CA)
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:  
AR0000400
Resource Type:
Patent
Resource Relation:
Patent File Date: 04/05/2016
Country of Publication:
United States
Language:
English

Citation Formats

Steingart, Daniel, Hertzberg, Benjamin, Chamoun, Mylad, Davies, Greg, and Meng, Ying Shirley. Alkaline battery electrolyte useful for a rechargeable alkaline electrochemical cell. United States: N. p., 2020. Web.
Steingart, Daniel, Hertzberg, Benjamin, Chamoun, Mylad, Davies, Greg, & Meng, Ying Shirley. Alkaline battery electrolyte useful for a rechargeable alkaline electrochemical cell. United States.
Steingart, Daniel, Hertzberg, Benjamin, Chamoun, Mylad, Davies, Greg, and Meng, Ying Shirley. Tue . "Alkaline battery electrolyte useful for a rechargeable alkaline electrochemical cell". United States. https://www.osti.gov/servlets/purl/1632445.
@article{osti_1632445,
title = {Alkaline battery electrolyte useful for a rechargeable alkaline electrochemical cell},
author = {Steingart, Daniel and Hertzberg, Benjamin and Chamoun, Mylad and Davies, Greg and Meng, Ying Shirley},
abstractNote = {The invention provides an electrolyte composition which is adapted for use in a rechargeable alkaline electrochemical cell, and especially preferably adapted for use in a rechargeable manganese zinc electrochemical cell, which electrolyte composition imparts improved performance characteristics to the rechargeable alkaline electrochemical cell. The electrolyte composition includes an electrolyte composition in which contains a potassium hydroxide and lithium hydroxide in a concentration and a respective molar ratio of about 1 molar potassium hydroxide to 2.5-3.7 (preferably 1:3) molar lithium hydroxide (1 M KOH:2.5-3.7 M LiOH). Also provided are alkaline electrochemical cells and alkaline batteries comprising the electrolyte compositions. The resultant alkaline electrochemical cells and alkaline batteries exhibit improved performance characteristics, as the electrolyte composition significantly inhibits the passivation of Zn, and may also be useful in this role in other battery chemistries.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {1}
}

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Works referenced in this record:

Rechargeable alkaline manganese dioxide-zinc cell having improved cumulative capacity
patent, April 1991