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US07666551B2 Positive electrode active material for non-aqueous electrolyte secondary battery, production method thereof, and non-aqueous electrolyte secondary battery using the same 失效
非水电解质二次电池用正极活性物质及其制造方法以及使用其的非水电解质二次电池

Positive electrode active material for non-aqueous electrolyte secondary battery, production method thereof, and non-aqueous electrolyte secondary battery using the same
Abstract:
A positive electrode active material for a non-aqueous electrolyte secondary battery of this invention includes: a lithium nickel composite oxide containing lithium, nickel, and at least one metal element other than lithium and nickel; and a layer containing lithium carbonate, aluminum hydroxide, and aluminum oxide, the layer being carried on the surface of the lithium nickel composite oxide. The lithium nickel composite oxide is composed such that the ratio of the nickel to the total of the nickel and the at least one metal element is 30 mol % or more. The layer is composed such that the amount of the lithium carbonate is 0.5 to 5 mol per 100 mol of the lithium nickel composite oxide. The total of aluminum atoms contained in the aluminum hydroxide and the aluminum oxide is 0.5 to 5 mol per 100 mol of the lithium nickel composite oxide.
Abstract(Chinese):

本发明的非水电解质二次电池用正极活性物质，其特征在于，含有锂，镍，锂和镍以外的至少一种金属元素的锂镍复合氧化物， 和含有碳酸锂，氢氧化铝和氧化铝的层，该层承载在锂镍复合氧化物的表面上。 锂镍复合氧化物的组成使得镍与镍和至少一种金属元素的总量的比例为30摩尔％以上。 该层的组成使得碳酸锂的量相对于每100摩尔锂镍复合氧化物为0.5〜5摩尔。 铝氢氧化物和氧化铝中所含的铝原子总量相对于每100摩尔锂镍复合氧化物为0.5〜5摩尔。

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