发明名称 |
PREPARING FOR METHOD OF MATERIAL SPHERICAL SHAPE POSITIVE ACTIVE MATERIAL FOR LITHIUM SECOND BATTERY |
摘要 |
PURPOSE: A method for manufacturing a spherical positive active material is provided to solve environmental contamination according to the use of an organic solvent for a mechanical pulverizing method and a sol-gel method and to manufacturing the positive active material having excellent conductivity by adding carbon particles. CONSTITUTION: A method for a spherical positive active material for a secondary lithium battery comprises the following steps: manufacturing a mixed material including a lithium-based compound, transition metal, phosphate-based compound, and carbon source; making a mixed solution by uniformly dissolving the mixed material in ultrapure water; rapidly freezing the mixed solution; manufacturing a spherical precursor of high density by sublimating the frozen mixed solution; and heat-treating the spherical precursor of high density. |
申请公布号 |
KR20100061155(A) |
申请公布日期 |
2010.06.07 |
申请号 |
KR20080120056 |
申请日期 |
2008.11.28 |
申请人 |
HYUNDAI MOTOR COMPANY;KOREA ELECTRONICS TECHNOLOGY INSTITUTE |
发明人 |
KIM, KYUNG SU;KIM, SA HEUM;KIM, DONG GUN;KIM, YOUNG JUN;SONG, JUN HO |
分类号 |
H01M4/04;H01M4/02;H01M4/58;H01M10/36 |
主分类号 |
H01M4/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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