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公开(公告)号：EP4089055A3
公开(公告)日：2023-03-08
申请号：EP22193720.4
申请日：2022-09-02
发明人： WEI, Guozhen , YE, Yaobin , WANG, Jingren , XIE, Nengjian , WANG, Pengfeng , LIN, Lin
IPC分类号： C01G53/00
摘要： A method for preparing ternary positive material in a lithium battery includes mixing nickel salt, cobalt salt, and manganese salt to form a mixed solution. A precipitant and a complexing agent are added into the mixed solution, thereby adjusting a pH value to a range of 10.5 to 12 and obtaining a precursor A. The precursor A and lithium salt are ground by a ball mill to obtain a precursor B, precursor B then being sintered in an air or oxygen atmosphere. The sintering includes heating at a first heating speed of 5 to 15 °C/min to a first temperature of 400 to 800 °C and being held at such temperature for 1 to 6 h, and heating at a second heating speed of 1 to 10 °C/min to a second temperature of 900 to 980 °C and being held there for 8 to 10 h.
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公开(公告)号：EP4089055A2
公开(公告)日：2022-11-16
申请号：EP22193720.4
申请日：2022-09-02
发明人： WEI, Guozhen , YE, Yaobin , WANG, Jingren , XIE, Nengjian , WANG, Pengfeng , LIN, Lin
IPC分类号： C01G53/00
摘要： A method for preparing ternary positive material in a lithium battery includes mixing nickel salt, cobalt salt, and manganese salt to form a mixed solution. A precipitant and a complexing agent are added into the mixed solution, thereby adjusting a pH value to a range of 10.5 to 12 and obtaining a precursor A. The precursor A and lithium salt are ground by a ball mill to obtain a precursor B, precursor B then being sintered in an air or oxygen atmosphere. The sintering includes heating at a first heating speed of 5 to 15 °C/min to a first temperature of 400 to 800 °C and being held at such temperature for 1 to 6 h, and heating at a second heating speed of 1 to 10 °C/min to a second temperature of 900 to 980 °C and being held there for 8 to 10 h.
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