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LaNi.sub.5 is-based metal hydride electrode in Ni-MH rechargeable cells

Patent ·
OSTI ID:872225
 [1];  [2];  [3];  [4];  [2];  [2]
  1. Arcadia, CA
  2. Pasadena, CA
  3. La Mesa, CA
  4. Glendora, CA
+ Show Author Affiliations

An at least ternary metal alloy of the formula AB.sub.(Z-Y) X.sub.(Y) is disclosed. In this formula, A is selected from the rare earth elements, B is selected from the elements of Groups 8, 9, and 10 of the Periodic Table of the Elements, and X includes at least one of the following: antimony, arsenic, germanium, tin or bismuth. Z is greater than or equal to 4.8 and less than or equal to 6.0. Y is greater than 0 and less than 1. Ternary or higher-order substitutions to the base AB.sub.5 alloys that form strong kinetic interactions with the predominant metals in the base metal hydride are used to form metal alloys with high structural integrity after multiple cycles of hydrogen sorption.

Research Organization:
California Institute of Technology (Pasadena, CA)
DOE Contract Number:
FG03-94ER14493
Assignee:
California Institute of Technology (Pasadena, CA)
Patent Number(s):
US 5888665
OSTI ID:
872225
Country of Publication:
United States
Language:
English

References (19)

Effect of Ce, Co, and Sn Substitution on Gas Phase and Electrochemical Hydriding/Dehydriding Properties of LaNi5 journal October 1995
Nickel/metal hydride batteries using rare-earth hydrogen storage alloy journal July 1994
Mössbauer studies on LaNi 4.7 Sn 0.3 and its hydride journal April 1985
From permanent magnets to rechargeable hydride electrodes journal February 1987
Model predictions for the enthalpy of formation of transition metal alloys II journal January 1983
Group 3A and 4A substituted AB5 hydrides journal December 1979
The influence of small amounts of added elements on various anode performance characteristics for LaNi2.5Co2.5-based alloys journal April 1990
The effect on hydrogen decomposition pressures of group IIIA and IVA element substitutions for Ni In LaNi5 alloys journal November 1978
Development of hydrogen-absorbing alloys for nickel-metal hydride secondary batteries journal February 1993
Model predictions for the enthalpy of formation of transition metal alloys journal January 1977
Electrochemical Properties of LaNi5 − x Ge x Alloys in Ni‐MH Batteries journal November 1997
Hydriding properties of MmNi5 system with aluminium, manganese and tin substitutions journal May 1993
Optimization of Composition and Structure of Metal‐Hydride Electrodes journal July 1994
Performance of LaNi/sub 4.7/Sn/sub 0.3/ metal hydride electrodes in sealed cells
  • Hightower, A.; Witham, C. K.; Bowman, R. C.
  • Thirteenth Annual Battery Conference on Applications and Advances. Conference, Thirteenth Annual Battery Conference on Applications and Advances. Proceedings of the Conference https://doi.org/10.1109/BCAA.1998.653902
conference January 1998
Electrochemical Evaluation of LaNi5 − x Ge x Metal Hydride Alloys journal September 1996
Electrochemical Studies on LaNi5 − x Sn x Metal Hydride Alloys journal August 1996
Cohesion in alloys — fundamentals of a semi-empirical model journal April 1980
Solution thermodynamics of hydrogen in the mischmetal-Niδ system with aluminium, manganese and tin substitutions journal July 1992
Some factors affecting the cycle lives of LaNi5-based alloy electrodes of hydrogen batteries journal July 1990

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Related Subjects

/429/420/
10
alloy
alloys
antimony
arsenic
base
base metal
bismuth
cells
cycles
disclosed
earth
earth element
earth elements
electrode
elements
equal
following
form
form metal
formula
germanium
higher-order
hydride
hydrogen
hydrogen sorption
integrity
interactions
is-based
kinetic
lani
metal
metal alloy
metal alloys
metal hydride
metals
multiple
multiple cycles
ni-mh
periodic
periodic table
predominant
rare
rare earth
rechargeable
rechargeable cell
rechargeable cells
selected
sorption
strong
structural
structural integrity
substitutions
table
ternary
ternary metal
z
z-y