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Scandium-containing hydrogen absorption alloy and hydrogen absorption electrode
Scandium-containing hydrogen absorption alloy and hydrogen absorption electrode
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机译：含的吸氢合金和吸氢电极
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摘要
The present invention provides a scandium containing hydrogen absorption alloy having an alloy phase which is represented by the following formula: (ScxA1-x) (B'yB''2-y)z wherein A represents at least one selected from a group consisting of Ti, Zr, rare-earth elements, a mixture of Ti and at least one metal selected from a group consisting of Zr, Ta, Nb, Hf, Ca and rare-earth elements, and a mixture of Zr and at least one metal selected from a group consisting of Ti, Ta, Nb, Hf, Ca and rare-earth elements; B' represents at least one selected from a group consisting of Ni, Fe, Co and a mixture of at least one metal selected from a group consisting of Ni, Fe and Co and at least one metal selected from a group consisting of Al, Ga, Si and In; B'' represents at least one selected from a group consisting of Mn, V, Cr, Nb, Ti and a mixture of at least one metal selected from a group consisting of Mn, V, Cr, Nb and Ti and at least one metal selected from a group consisting of Al, Ga, Si and In; x represents 0 x /= 1; y represents 0 y 2; and z represents 0.75 /= z /= 1.2, and the alloy phase includes at least one of a part which belongs to a C15 type Laves phase and a part which belongs to a C14 type Laves phase, and a hydrogen absorption electrode which includes the alloy. The hydrogen absorption alloy of the present invention has a large hydrogen absorption content and can easily be electrochemically activated. A battery utilizing the alloy as an electrode has a large discharge capacity from the beginning. IMAGE
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