To provide a hydrogen storage material where storage/discharge speeds of hydrogen are high, speed drop along with cycle repetition, and storage/discharge amounts of hydrogen in the entire material are large and a method for manufacturing the same.
Provided are a hydrogen storage material that comprises a mixture of metallic amide A(NH2)n and metal hydride BHm and a hydrogen-storage alloy, wherein for the hydrogen-storage, the ratio (P2A/P1A) of the plateau pressure (P2A) of the hydrogen-storage alloy at the same temperature as the hydrogen-storage temperature to the plateau pressure (P1A) at the hydrogen-storage temperature of the mixture is 0.01 or more and 100 or less, and the ratio (P2D/P1D) of the plateau pressure (P2D) of the hydrogen-storage alloy at the same temperature as the hydrogen-discharge temperature to the plateau pressure (P1D) at the hydrogen-discharge temperature of the mixture is 0.01 or more and 100 or less and where n, m are each valence of metals A, B; and a method for manufacturing the hydrogen storage material 1.
TOWATA SHINICHI
Kaoru Kobayashi