HYDROGEN-ABSORBING ALLOY FOR AN ALKALINE STORAGE BATTERY
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United States of America Patent
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Issued Date -
Apr 10, 2008
app pub date -
Feb 27, 2007
filing date -
Feb 28, 2006
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Abandoned
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Abstract
Therefore the invention provides a hydrogen-absorbing alloy comprising at least one A.sub.5B.sub.19 type crystalline phase having the formula R.sub.1-yMg.sub.yNi.sub.3.8.+-.0.1-zM.sub.z, in which R represents one or more elements chosen from La, Ce, Nd or Pr; M represents one or more elements chosen from Mn, Fe, Al, Co, Cu, Zr, Sn and M does not contain Cr; 0.ltoreq.y.ltoreq.0.30; z.ltoreq.0.5. The invention extends to an electrode comprising an active ingredient comprising said alloy. It also extends to a nickel metal hydride alkaline storage battery the negative electrode of which comprises said alloy. The invention also relates to the process for the manufacture of said alloy.
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