Hydrogen-absorbing alloy and process for preparing the same Patent #: 6153032
ApplicationNo. 09937652 filed on 11/24/1999
US Classes:429/59, Prevention or elimination means is one of the cell electrodes or is electrically connected to an electrode429/101, FLUID ACTIVE MATERIAL OR TWO-FLUID ELECTROLYTE COMBINATION HAVING AREAS OF NONMIXTURE429/19, Having means for active material generation or regeneration429/22, Automatic control means429/24, Temperature dependent148/669, Titanium(Ti) or titanium base alloy148/421, Titanium, zirconium, or hafnium base420/900, HYDROGEN STORAGE420/424, VANADIUM BASE420/428, CHROMIUM BASE420/421Chromium or molybdenum containing
ExaminersPrimary: Bell, Bruce F.
Attorney, Agent or Firm
Foreign Patent References
International ClassH01M 1034
AbstractA method for absorbing and releasing hydrogen comprises applying repeatedly hydrogen pressurization and depressurization to a hydrogen storage metal alloy of a body-centered cubic structure-type phase exerting a two-stage or inclined plateau characteristic in a hydrogen storage amount vs hydrogen pressure relation in an appropriate fashion to absorb and release hydrogen. At least at one stage during the release of hydrogen, the temperature (T2) of the above-mentioned hydrogen storage metal alloy is made higher than the temperature (T1) of the hydrogen storage metal alloy during the hydrogen absorption process (T2>T1). This enables the release and utilization of occluded hydrogen at a low-pressure plateau region or an inclined plateau lower region.
Field of SearchHYDROGEN STORAGE
Chromium or molybdenum containing
Titanium(Ti) or titanium base alloy
Titanium, zirconium, or hafnium base
Prevention or elimination means is one of the cell electrodes or is electrically connected to an electrode
FLUID ACTIVE MATERIAL OR TWO-FLUID ELECTROLYTE COMBINATION HAVING AREAS OF NONMIXTURE
Having means for active material generation or regeneration
Automatic control means