LOW Co HYDROGEN STORAGE ALLOY

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PROBLEM TO BE SOLVED : To provide new application regarding a low Co hydrogen storage alloy in which the content of Co is extremely low. SOLUTION : As the application of an alloy which can be expressed by the general formula of MmNia Mnb Alc Cod (wherein, Mm is misch metal, and 3.7≤a≤4.7, 0.3≤b≤0.65, 0.2≤c≤0.5, 0

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