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CN104282900A 正极活性物质、其制备方法和包括其的可再充电锂电池 有权

正极活性物质、其制备方法和包括其的可再充电锂电池
Abstract:
公开了一种用于可再充电锂电池的正极活性物质、一种制备该正极活性物质的方法和一种包括该正极活性物质的可再充电锂电池。一种用于可再充电锂电池的正极活性物质包括由化学式1表示的锂复合金属氧化物。一种制备该正极活性物质的方法包括：将由化学式2表示的锂金属氧化物加入到含Zr盐的溶液中以获得混合溶液；以及对混合溶液进行热处理，以制备出由化学式1表示的锂复合金属氧化物。一种可再充电锂电池包括正电极，所述正电极包括所述正极活性物质。[化学式1]LiaZrbNicCodMneZrfO2，其中，0.9≤a≤1.1，0
Abstract(English):

A positive active material for a rechargeable lithium battery, a method of preparing the positive active material and a rechargeable lithium battery including the positive active material are provided. The positive active material for the rechargeable lithium battery includes a lithium composite metal oxide represented by Chemical Formula 1. The method of preparing the positive active material includes adding a lithium metal oxide represented by Chemical Formula 2 to a Zr salt-containing solution to obtain a mixed solution, and heat-treating the mixed solution to prepare a lithium composite metal oxide represented by Chemical Formula 1. The rechargeable lithium battery includes a positive electrode including the positive active material. LiaZrbNicCodMneZrfO2 [Chemical Formula 1] where, 0.9<=a<=1.1, 0

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