The present invention discloses a hydrogen-recyclable fuel cell comprising anode set, cathode set, catalytic layer, proton exchange membrane, hydrogen delivering device, hydrogen-storage complex metal layer and hydrogen drawing device. The hydrogen deliver...

The present invention aims to increase the discharge capacity and to improve the cycle life performance in a nickel-metal hydride rechargeable battery using a La-Mg-Ni based hydrogen-absorbing alloy as an active material of a negative electrode. The presen...

In a nickel-metal hydride storage cell, deterioration of a cell capacity at high temperature and degradation of a cycle characteristic are suppressed. The nickel-metal hydride storage cell of the invention comprises in a cell case, a positive electrode com...

Disclosed are new Ca, Mg and Ni-containing alloys of the general formula: (CaMgM)( NiT) where: M is at least one metal selected from the group consisting of Y, Ce, La, Pr, Nd, Th, Nd, Ti, V, Zr, Ta, Hf, Sr, Ba and Misch metals; T is at least one element se...

The application relates to an electrochemical hydrogen storage alloy comprising modifier elements and having an oxide interface including metallic nickel alloy regions distributed therethrough and a process for its production by treatment in an alkaline me...

A hydrogen storage alloy having a body-centered cubic structure phase capable of storing and releasing hydrogen as its main phase, and a composition of the general composition formula: TiCrVM, wherein 20 ≦ a (at%) ≦ 80, 0 ≦ b (at%) ≦ 10, and 0 ≦ ...

Non-uniform heterogeneous powder particles uses, and said powder particles comprising at least two separate and distinct hydrogen storage alloys selected from the group consisting of : Ovonic LaNi type alloys, Ovonic TiNi type alloys, and Ovonic MgNi based...

The present invention provides a method for absorbing and releasing hydrogen which comprises applying repeatedly hydrogen pressurization and depressurization to a hydrogen storage metal alloy of a body-centered cubic structure-type phase exerting a two-sta...

A process for producing hydrogen storage metal alloys having a body-centered cubic structure-type main phase enabling the adsorption and desorption of hydrogen is provided which comprises the steps of: (1) melting a starting alloy brought to a predetermine...

A hydrogen storage alloy, for use in alkaline storage batteries, having a CaCu5-type crystal structure and represented by the compositional formula MmNixCoyMnzM1-z (wherein M represents at least one element selected from the group consisting of aluminum (A...