Title:
改質したマグネシウムベース水素貯蔵合金
Document Type and Number:
Japanese Patent JP5273891
Kind Code:
B2
Abstract:
A magnesium based hydrogen storage alloy powder which is useful as a hydrogen supply material for powering internal combustion engine or fuel cell vehicles. The alloy contains greater than about 85 atomic percent magnesium, about 2-8 atomic percent nickel, about 0.5-5 atomic percent aluminum and about 2-7 atomic percent rare earth metals or mixtures of rare earth metals. The rare earth elements may be Misch metal and may predominantly contain Ce and/or La. The alloy may also contain about 0.5-5 atomic percent silicon. The alloys can be modified to store more than 4 wt. % hydrogen, with a reduced hydride bond strength (i.e. about 64 kJ/mole) which allows for economic recovery of the stored hydrogen. Also, they have a plateau pressure about two times greater than pure Mg and comparable bond energies and plateau pressures to Mg2Ni alloys, while reducing the amount of incorporated nickel by 25-30 atomic %. Also, the storage capacity of the alloy is significantly greater than the 3.6 wt. % of Mg2Ni material.
Inventors:
Ovshinsky, Stanford Earl.
Young, Rosa Tee.
Young, Rosa Tee.
Application Number:
JP2001539931A
Publication Date:
August 28, 2013
Filing Date:
November 20, 2000
Export Citation:
Assignee:
ENERGY CONVERSION DEVICES, INC.
International Classes:
C22C23/06; F17C11/00; C01B3/00; C22C1/04; C22C23/00; H01M4/38; H01M4/46; H01M8/04; H01M8/06
Domestic Patent References:
| JP10102171A | ||||
| JP5221601A |
Attorney, Agent or Firm:
Hidekazu Miyoshi