| 简介 |
PROBLEM TO BE SOLVED : To provide a nickel-hydrogen battery excellent in high-temperature preservation characteristics and with self discharge restrained.
SOLUTION : The nickel-hydrogen battery uses hydrogen storage alloy powder as its anode active material with a composition expressed in a general formula (1) : MmNixAlyMnzCoβFeγ (where, Mm is a mixture of light rare-earth elements, 2.5≤x≤4.5, 0.05≤(y+z)≤2, 0≤β≤0.6, 0≤γ≤0.6, 5.6≤(x+y+z+β+γ)≤6) given surface treatment by stirring in alkaline aqueous solution containing lithium hydroxide.
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