Patent ID: 8690985
Filing Date: 2014-04-08
Classification: B22F,C01B,C22C,Y02E

Abstract:
1. A method of producing a hydrogen storage material comprising particles of a metal A selected from the group consisting of Mg and Al, particles of a metal B selected from the group consisting of Ni and Cu, and particles of an intermetallic compound A-B of the metal A and the metal B, the particles of the metal A, the metal B, and the intermetallic compound A-B being mixed and combined into a composite material as the hydrogen storage material, comprising: a first step of mixing the particles of the intermetallic compound A-B of the metal A and the metal B with the particles of the metal B; a second step of adding particles of a hydride A-H of the metal A to a mixture of the intermetallic compound A-B and the metal B, and mixing the particles together; and a third step of dehydrogenating the hydride A-H into the metal A, wherein the second step is executed after the first step; wherein the third step is executed after the second step; wherein the metal A is Mg, the metal B is Ni, and the intermetallic compound A-B of the metal A and the metal B is Mg wherein a Mg/Ni atomic ratio of total Mg to total Ni is in a range of about 12 to about 50, and a metal B/total Ni atomic ratio is in a range of about 0.5 to about 0.8.