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Many studies of Ni/MH batteries nowadays focus on its use in electric tools,electric vehicles (EVs) and hybrid vehicles.In such situations, the characteristics of the advanced battery under high-rate discharge conditions are undoubtedly the key factors for its use.Nickel hydroxide (β-Ni(OH)2), the active material of positive electrode of Ni/MH batteries, is a kind of p-type semiconductor and its poor electronic conductivity handicaps the high-rate dischargeability of Ni/MH batteries.