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Title: Electrochemical cell

Abstract

An electrochemical cell is described comprising a negative electrode. The electrochemically active material consists of an intermetallic compound forming a hydride with hydrogen, which compound has the CaCu/sub 5/-structure and the compositional formula AB/sub m/C/sub n/, where m+n is between 4.8 and 5.4, and where n is between 0.05 and 0.6. A consists of Mischmetall or of at least one element selected from the group consisting of Y, Ti, Hf, Zr, Ca, Th, La and the remaining rare earth metals, in which the total atomic quantities of the elements Y, Ti, Hf and Zr may not be more than 40% of A. B consists of two or more elements selected from the group consisting of Ni, Co, Cu, Fe and Mn, the maximum atomic quantity per gram atom of A is being for Ni:3.5, for Co:3.5, for Cu:3.5, for Fe:2.0 and for Mn:1.0. C consists of at least one element selected from the group consisting of Al, Cr and Si in the following atomic quantities: Al:0.05-0.6, Cr:0.05-0.5 and Si:0.05-0.5, characterized in that the electrochemically active material of the negative electrode also comprises an intermetallic compound forming a hydride with hydrogen, of the compositional formula DNihd pE/sub q/ in an amountmore » from 5 to 45% by weight calculated on the total amount of electrochemically active material, where p+q is between 4.8 and 5.4, where p is between 3.5 and 5.4, where q has a value from 0 to 1.5. D is selected from the group formed by La and Mischmetall, and E consists of one or more elements selected from the group consisting of Co, Cr, Mn and Cu.« less

Inventors:
;
Publication Date:
OSTI Identifier:
5686634
Patent Number(s):
US 4702978
Assignee:
U.S. Philips Corp., New York, NY
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 18 Nov 1986
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; ANODES; CHEMICAL COMPOSITION; METAL-NONMETAL BATTERIES; CALCIUM; CHROMIUM; COBALT; COPPER; HAFNIUM; HYDRIDES; HYDROGEN; INTERMETALLIC COMPOUNDS; IRON; LANTHANUM; MANGANESE; MISCH METAL; NICKEL; THORIUM; TITANIUM; YTTRIUM; ZIRCONIUM; ACTINIDES; ALKALINE EARTH METALS; ALLOYS; CERIUM ALLOYS; CERIUM BASE ALLOYS; ELECTRIC BATTERIES; ELECTROCHEMICAL CELLS; ELECTRODES; ELEMENTS; HYDROGEN COMPOUNDS; LANTHANUM ALLOYS; METALS; NONMETALS; RARE EARTH ALLOYS; RARE EARTHS; TRANSITION ELEMENTS; 250903* - Energy Storage- Batteries- Materials, Components, & Auxiliaries

Citation Formats

Heuts, J J.F., and Frens, G. Electrochemical cell. United States: N. p., 1987. Web.
Heuts, J J.F., & Frens, G. Electrochemical cell. United States.
Heuts, J J.F., and Frens, G. Tue . "Electrochemical cell". United States.
@article{osti_5686634,
title = {Electrochemical cell},
author = {Heuts, J J.F. and Frens, G},
abstractNote = {An electrochemical cell is described comprising a negative electrode. The electrochemically active material consists of an intermetallic compound forming a hydride with hydrogen, which compound has the CaCu/sub 5/-structure and the compositional formula AB/sub m/C/sub n/, where m+n is between 4.8 and 5.4, and where n is between 0.05 and 0.6. A consists of Mischmetall or of at least one element selected from the group consisting of Y, Ti, Hf, Zr, Ca, Th, La and the remaining rare earth metals, in which the total atomic quantities of the elements Y, Ti, Hf and Zr may not be more than 40% of A. B consists of two or more elements selected from the group consisting of Ni, Co, Cu, Fe and Mn, the maximum atomic quantity per gram atom of A is being for Ni:3.5, for Co:3.5, for Cu:3.5, for Fe:2.0 and for Mn:1.0. C consists of at least one element selected from the group consisting of Al, Cr and Si in the following atomic quantities: Al:0.05-0.6, Cr:0.05-0.5 and Si:0.05-0.5, characterized in that the electrochemically active material of the negative electrode also comprises an intermetallic compound forming a hydride with hydrogen, of the compositional formula DNihd pE/sub q/ in an amount from 5 to 45% by weight calculated on the total amount of electrochemically active material, where p+q is between 4.8 and 5.4, where p is between 3.5 and 5.4, where q has a value from 0 to 1.5. D is selected from the group formed by La and Mischmetall, and E consists of one or more elements selected from the group consisting of Co, Cr, Mn and Cu.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {10}
}