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Title: Electrolyte compositions comprising ionic liquids and metal hydride batteries comprising same

Abstract

Electrolyte compositions comprising a) an ionic liquid and b) a protic acid and/or an organic solvent are suitable for use in electrochemical cells, e.g. metal hydride batteries. The electrolyte compositions may replace the currently employed 30% by weight aqueous KOH. Suitable protic acids include carboxylic acids, mineral acids, sulfonic acids and the like. Suitable organic solvents include organic carbonates, ethers, glymes, ortho esters, polyalkylene glycols, esters, lactones, glycols, formates, sulfones, sulfoxides, amides, alcohols, ketones, nitro solvents, nitrile solvents and combinations thereof. Present batteries may achieve a nominal open-circuit voltage of >1.2 V (volts) and up to about 6 V. The electrolyte compositions allow enlargement of the electrochemical window, thus allowing the use of further cathode active materials. Further cathode active materials include transition metals and their oxides, hydroxides and fluorides; for example, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, Lu, Hf, Ta, W, Re, Os, Ir, Pt and Au and their oxides, hydroxides, oxide/hydroxides and fluorides.

Inventors:
; ; ;
Publication Date:
Research Org.:
BASF Corp., Florham Park, NJ (United States)
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1637885
Patent Number(s):
10,587,012
Application Number:
14/669,588
Assignee:
BASF Corporation (Florham Park, NJ)
DOE Contract Number:  
AR0000386
Resource Type:
Patent
Resource Relation:
Patent File Date: 03/26/2015
Country of Publication:
United States
Language:
English

Citation Formats

Meng, Tiejun, Young, Kwo, Wong, Diana, and Nei, Jean. Electrolyte compositions comprising ionic liquids and metal hydride batteries comprising same. United States: N. p., 2020. Web.
Meng, Tiejun, Young, Kwo, Wong, Diana, & Nei, Jean. Electrolyte compositions comprising ionic liquids and metal hydride batteries comprising same. United States.
Meng, Tiejun, Young, Kwo, Wong, Diana, and Nei, Jean. Tue . "Electrolyte compositions comprising ionic liquids and metal hydride batteries comprising same". United States. https://www.osti.gov/servlets/purl/1637885.
@article{osti_1637885,
title = {Electrolyte compositions comprising ionic liquids and metal hydride batteries comprising same},
author = {Meng, Tiejun and Young, Kwo and Wong, Diana and Nei, Jean},
abstractNote = {Electrolyte compositions comprising a) an ionic liquid and b) a protic acid and/or an organic solvent are suitable for use in electrochemical cells, e.g. metal hydride batteries. The electrolyte compositions may replace the currently employed 30% by weight aqueous KOH. Suitable protic acids include carboxylic acids, mineral acids, sulfonic acids and the like. Suitable organic solvents include organic carbonates, ethers, glymes, ortho esters, polyalkylene glycols, esters, lactones, glycols, formates, sulfones, sulfoxides, amides, alcohols, ketones, nitro solvents, nitrile solvents and combinations thereof. Present batteries may achieve a nominal open-circuit voltage of >1.2 V (volts) and up to about 6 V. The electrolyte compositions allow enlargement of the electrochemical window, thus allowing the use of further cathode active materials. Further cathode active materials include transition metals and their oxides, hydroxides and fluorides; for example, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, Lu, Hf, Ta, W, Re, Os, Ir, Pt and Au and their oxides, hydroxides, oxide/hydroxides and fluorides.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {3}
}

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Works referenced in this record:

Electrochemical device
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High power nickel-metal hydride batteries and high power electrodes for use therein
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Additives for improving cycle life of non-aqueous rechargeable lithium batteries
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