所揭示实施例系关于阴极活性材料组合物之前驱物共沈淀物材料的制造。在制造该前驱物共沈淀物材料期间，形成含有硫酸锰与硫酸钴中之至少一者的水溶液。接着，将NH4OH溶液添加至该水溶液中以形成包含前驱物共沈淀物材料之不守则二级粒子的微粒溶液。亦借由将碱性溶液添加至该微粒溶液中以在微粒溶液中维持在10至12范围内之恒定pH。

The disclosed embodiments relate to the manufacture of a precursor co-precipitate material for a cathode active material composition. During manufacture of the precursor co-precipitate material, an aqueous solution containing at least one of a manganese sulfate and a cobalt sulfate is formed. Next, a NH4OH solution is added to the aqueous solution to form a particulate solution comprising irregular secondary particles of the precursor co-precipitate material. A constant pH in the range of 10-12 is also maintained in the particulate solution by adding a basic solution to the particulate solution.