【摘要】 探讨不同的搅拌频率、不同的固含量对三元前驱体合成因素的影响，通过共沉淀反应过程中梯次降低搅拌频率和调控反应过程中浆料的固含量，制备了高球形度、高振实密度、粒度分布适中的超高镍三元前驱体Ni_0.95Co_0.04Mn_0.01（OH）₂。结果表明：以38 Hz开机，然后以每12 h下调3 Hz的速度梯次降低搅拌频率至20 Hz，并且将固含量控制在300 g/L，既可以保证高球形度、高振实密度，减少球粘连，又可以避免前驱体产生裂纹和碎球，制备出了高球形度、颗粒分布均匀的超高镍三元前驱体。更多还原

【Abstract】 The effects of different stirring frequencies and different solid content on the synthesis of ternary precursor were discussed.By decreasing the stirring frequency step by step and regulating solid content of reaction slurry during the co-precipitation reaction,a ternary precursor Ni_0.95Co_0.04Mn_0.01（OH）₂ with ultra-high nickel content,high sphericity,high tap density and moderate particle size distribution was prepared.The results show that starting at 38 Hz,and then reducing the stirring frequency to 20 Hz by lowering the speed of 3 Hz every 12 hours,and control the solid content to 300 g/L,which can not only ensure high sphericity and high tap density,reduce ball adhesion,but also avoid crack and broken ball in the precursor,and prepare ternary precursor with high sphericity and uniform distribution.更多还原