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Title: Non-stoichiometric AB5 alloys for metal hydride electrodes

Abstract

The present invention provides a non-stoichiometric alloy comprising a composition having the formula AB.sub.5+X an atomic ratio wherein A is selected from the group consisting of the rare earth metals, yttrium, mischmetal, or a combination thereof; B is nickel and tin, or nickel and tin and at least a third element selected from the group consisting of the elements in group IVA of the periodic table, aluminum, manganese, iron, cobalt, copper, antimony or a combination thereof; X is greater than 0 and less than or equal to about 2.0; and wherein at least one substituted A site is occupied by at least one of the B elements. An electrode incorporating said alloy and an electrochemical cell incorporating said electrode are also described.

Inventors:
 [1];  [2];  [3];  [4];  [1]
  1. Bellport, NY
  2. Setauket, NY
  3. Calverton, NY
  4. Cold Spring Harbor, NY
Issue Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
OSTI Identifier:
873763
Patent Number(s):
6238823
Assignee:
Brookhaven Science Associates (Upton, NY)
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:  
AC02-98CH10886
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
non-stoichiometric; ab5; alloys; metal; hydride; electrodes; provides; alloy; comprising; composition; formula; atomic; ratio; selected; consisting; rare; earth; metals; yttrium; mischmetal; combination; nickel; third; element; elements; iva; periodic; table; aluminum; manganese; iron; cobalt; copper; antimony; equal; substituted; site; occupied; electrode; incorporating; electrochemical; cell; described; cell incorporating; alloy comprising; electrochemical cell; rare earth; earth metal; metal hydride; element selected; periodic table; earth metals; atomic ratio; /429/420/423/

Citation Formats

Reilly, James J, Adzic, Gordana D, Johnson, John R, Vogt, Thomas, and McBreen, James. Non-stoichiometric AB5 alloys for metal hydride electrodes. United States: N. p., 2001. Web.
Reilly, James J, Adzic, Gordana D, Johnson, John R, Vogt, Thomas, & McBreen, James. Non-stoichiometric AB5 alloys for metal hydride electrodes. United States.
Reilly, James J, Adzic, Gordana D, Johnson, John R, Vogt, Thomas, and McBreen, James. Mon . "Non-stoichiometric AB5 alloys for metal hydride electrodes". United States. https://www.osti.gov/servlets/purl/873763.
@article{osti_873763,
title = {Non-stoichiometric AB5 alloys for metal hydride electrodes},
author = {Reilly, James J and Adzic, Gordana D and Johnson, John R and Vogt, Thomas and McBreen, James},
abstractNote = {The present invention provides a non-stoichiometric alloy comprising a composition having the formula AB.sub.5+X an atomic ratio wherein A is selected from the group consisting of the rare earth metals, yttrium, mischmetal, or a combination thereof; B is nickel and tin, or nickel and tin and at least a third element selected from the group consisting of the elements in group IVA of the periodic table, aluminum, manganese, iron, cobalt, copper, antimony or a combination thereof; X is greater than 0 and less than or equal to about 2.0; and wherein at least one substituted A site is occupied by at least one of the B elements. An electrode incorporating said alloy and an electrochemical cell incorporating said electrode are also described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

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Works referenced in this record:

From permanent magnets to rechargeable hydride electrodes
journal, February 1987


Magnetic Phase Transitions in Intermetallic GdNi 5-x Sn 1+x and TbNi 5-x Sn 1+x Compounds
journal, August 1997


The influence of cobalt on the electrochemical cycling stability of LaNi5-based hydride forming alloys
journal, August 1996


Electrochemical properties of the LaNi4.6+xSn0.2 system
journal, May 1996


Function of cobalt in AB5Hx electrodes
journal, May 1997


Non-stoichiometric Hydride-Forming Compounds: An Excellent Combination of Long-term Stability and High Electrocatalytic Activity*
journal, January 1994


Cerium Content and Cycle Life of Multicomponent  AB 5 Hydride Electrodes
journal, October 1995