发明名称 |
Hydrogen storage method |
摘要 |
A hydrogen storage method is provided which enables a hydrogen storage alloy to store hydrogen up to a maximum hydrogen storage amount thereof in excess of a generally known theoretical value. In a hydrogenation step, a hydrogen storage ratio calculated as an atomic weight ratio between hydrogen and the hydrogen storage alloy is obtained beforehand as a theoretical value, a pressure at which the hydrogen storage alloy stores hydrogen up to the theoretical value is set as a first pressure value, a pressure value ten or more times greater than the first pressure value is set as a second pressure value, and pressure is increased up to the second pressure value. In a dehydrogenation step, the pressure is decreased from the second pressure value to or below the first pressure value. The hydrogenation step and the dehydrogenation step are repeatedly executed. |
申请公布号 |
US9334163(B2) |
申请公布日期 |
2016.05.10 |
申请号 |
US201214357161 |
申请日期 |
2012.10.25 |
申请人 |
KABUSHIKI KAISHA ATSUMITEC |
发明人 |
Uchiyama Naoki;Kanai Tomomi;Harada Kazumi |
分类号 |
C01B3/08;C01B3/00;C22C23/00;H01M4/24;H01M4/38;H01M4/46 |
主分类号 |
C01B3/08 |
代理机构 |
Cozen O'Connor |
代理人 |
Cozen O'Connor |
主权项 |
1. A hydrogen storage method comprising:
a hydrogenation step of hydrogenating a hydrogen storage alloy while increasing pressure in an atmosphere; and a dehydrogenation step of dehydrogenating the hydrogenated hydrogen storage alloy while decreasing the pressure in the atmosphere, wherein: in the hydrogenation step, a hydrogen storage ratio calculated as an atomic weight ratio between hydrogen and the hydrogen storage alloy is obtained beforehand as a theoretical value, a pressure corresponding to the theoretical value is set as a first pressure value, a pressure value ten or more times greater than the first pressure value is set as a second pressure value, and the pressure in the atmosphere is increased up to the second pressure value, in the dehydrogenation step, the pressure in the atmosphere is decreased from the second pressure value to or below the first pressure value, and the hydrogenation step and the dehydrogenation step are repeatedly executed so as to make the hydrogen storage alloy store hydrogen above the theoretical value. |
地址 |
Shizuoka JP |