| abstract |
A method for forming lithium metal oxides comprised of Ni, Mn, and Co useful for making lithium ion batteries is of a specific size that allows for the formation of improved lithium metal oxides Providing precursor fine particles of Ni and Co. The method allows the formation of lithium metal oxides with improved safety while maintaining good capacity and rate performance. In particular, the method allows the formation of lithium metal oxides where the primary particle surface area Mn / Ni ratio is greater than the bulk Mn / Ni ratio. Similarly, the method allows for the formation of lithium metal oxides containing secondary particles with a fairly high density that allows for high cathode density and battery capacity while maintaining good capacity and rate performance. [Selection] Figure 1 |