Hydrogen absorbing Ni,Zr-based alloy and rechargeable alkaline battery
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United States of America Patent
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Feb 6, 1990
Grant Date -
N/A
app pub date -
Jul 17, 1989
filing date -
Dec 27, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A hydrogen absorbing Ni,Zr-based alloy comprising 5 to 20% by weight of titanium (Ti), 10 to 37% by weight of zirconium (Zr), 5 to 30% by weight of manganese (Mn), 0.01 to 15% by weight of tungsten (W), 6 to 30% by weight of iron (Fe), and optionally at least one of 0.1 to 7% by weight of Cu, 0.05 to 6% by weight of Cr and 0.01 to 5% by weight of Al, and balance nickel (Ni) and unavoidable impurities; and a sealed Ni-hydrogen rechargeable battery comprising a negative electrode provided with a hydrogen absorbing alloy as an active material, an Ni positive electrode, a separator and an alkaline electrolytic solution, wherein the hydrogen absorbing alloy is composed of such hydrogen absorbing Ni,Zr-based alloy.
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