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    • 5. 发明专利
    • Nickel cobalt manganese compound hydroxide, method for producing the same, positive electrode active material for non-aqueous electrolyte secondary battery, and non-aqueous electrolyte secondary battery
    • 镍钴锰锰化合物氢氧化物,其制造方法,非水电解质二次电池的正极活性物质和非水电解质二次电池
    • JP2013144625A
    • 2013-07-25
    • JP2012006473
    • 2012-01-16
    • Tanaka Chemical Corp株式会社田中化学研究所
    • MASUKAWA TAKAAKI
    • C01G53/00H01M4/505H01M4/525
    • Y02P70/54
    • PROBLEM TO BE SOLVED: To provide a nickel cobalt manganese compound hydroxide which allows a higher density of a positive electrode active material and achieves a high density non-aqueous electrolyte secondary battery, and to provide a method for producing the same.SOLUTION: The nickel cobalt manganese compound hydroxide is NiCoMn compound hydroxide, in which the atomic ratio of Ni, Co and Mn is substantially 5:2:3. The nickel cobalt manganese compound hydroxide is obtained by keeping the pH of an aqueous solution containing a nickel salt, a cobalt salt and a manganese salt within the range of 10 to 13, in an atmosphere of a mixed gas composed of an inert gas and oxygen, wherein oxygen is contained in an amount of 0.5 to 3.0 vol% of the inert gas, to deposit the compound hydroxide. The method for producing the compound hydroxide, a positive electrode active material for a non-aqueous electrolyte secondary battery, and a non-aqueous electrolyte secondary battery having a positive electrode using the positive electrode active material as a main part, a separator, a negative electrode, and a nonaqueous electrolyte solution are also provided.
    • 要解决的问题:提供一种允许更高密度的正极活性材料并实现高密度非水电解质二次电池的镍钴锰化合物氢氧化物,并提供其制造方法。溶液:镍 钴锰化合物氢氧化物是NiCoMn复合氢氧化物,其中Ni,Co和Mn的原子比基本上为5:2:3。 镍钴锰化合物氢氧化物通过将含有镍盐,钴盐和锰盐的水溶液的pH保持在10〜13的范围内,在由惰性气体和氧气组成的混合气体的气氛中 其中氧含量为惰性气体的0.5〜3.0体积%,沉积氢氧化物。 本发明的复合氢氧化物的制造方法,非水电解质二次电池用正极活性物质和使用正极活性物质作为主要成分的正极的非水电解质二次电池,隔膜,负极 电极和非水电解质溶液。