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Title: Electrolytes and metal hydride batteries

Abstract

Metal hydride batteries comprising an electrolyte composition which comprises an aqueous solution comprising potassium hydroxide (KOH) and one or more halide and/or oxyacid salts exhibit reduced degradation of the anode material during operation. The salts are for instance alkali metal salts. Anode materials exhibit for instance <100 % of the degradation of the same anode material in the same battery when replacing the electrolyte composition with 30 weight percent (wt %) aqueous KOH and the conductivity of the electrolyte composition is for instance ≥85 % of 30 wt % aqueous KOH. Anode materials are for example ABx high capacity hydrogen storage alloys comprising Mg where x is from about 0.5 to about 5 and which has a discharge capacity of ≥400 mAh/g.

Inventors:
; ;
Issue Date:
Research Org.:
BASF Corporation, Florham Park, NJ (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568499
Patent Number(s):
10333177
Application Number:
14/540,174
Assignee:
ARPA-E
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:  
AR0000386
Resource Type:
Patent
Resource Relation:
Patent File Date: 11/13/2014
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Young, Kwo, Yan, Shuli, and Ng, Simon K. Y. Electrolytes and metal hydride batteries. United States: N. p., 2019. Web.
Young, Kwo, Yan, Shuli, & Ng, Simon K. Y. Electrolytes and metal hydride batteries. United States.
Young, Kwo, Yan, Shuli, and Ng, Simon K. Y. Tue . "Electrolytes and metal hydride batteries". United States. https://www.osti.gov/servlets/purl/1568499.
@article{osti_1568499,
title = {Electrolytes and metal hydride batteries},
author = {Young, Kwo and Yan, Shuli and Ng, Simon K. Y.},
abstractNote = {Metal hydride batteries comprising an electrolyte composition which comprises an aqueous solution comprising potassium hydroxide (KOH) and one or more halide and/or oxyacid salts exhibit reduced degradation of the anode material during operation. The salts are for instance alkali metal salts. Anode materials exhibit for instance <100 % of the degradation of the same anode material in the same battery when replacing the electrolyte composition with 30 weight percent (wt %) aqueous KOH and the conductivity of the electrolyte composition is for instance ≥85 % of 30 wt % aqueous KOH. Anode materials are for example ABx high capacity hydrogen storage alloys comprising Mg where x is from about 0.5 to about 5 and which has a discharge capacity of ≥400 mAh/g.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {6}
}

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Works referenced in this record:

Electrochemical hydrogen storage alloys and batteries fabricated from Mg containing base alloys
patent, April 1997


Medium or large scale sealed metal oxide/metal hydride battery
patent, October 1995


Nickel hydride secondary cell
patent, June 1997


Nickel/metal hydride storage battery
patent, June 2000