发明名称 |
METHOD FOR PREPARING A POSITIVE ELECTRODE ACTIVE MATERIAL PRECURSOR FOR A LITHIUM SECONDARY BATTERY HAVING A CONCENTRATION-GRADIENT LAYER AND FOR PREPARING A POSITIVE ACTIVE MATERIAL USING A BATCH REACTOR, AND POSITIVE ELECTRODE ACTIVE MATERIAL PRECU |
摘要 |
The present invention relates to a method for preparing a positive electrode active material precursor for a lithium secondary battery having a concentration-gradient layer and for preparing a positive active material using a batch reactor, and to a positive electrode active material precursor for a lithium secondary battery and positive active material prepared by the method. The method for preparing a positive electrode active material precursor for a lithium secondary battery having a concentration-gradient layer and for preparing a positive electrode active material using a batch reactor involves supplying a predetermined amount of chelating agent to the batch reactor, and simultaneously supplying a transition metal while continuously adjusting the concentration of the transition metal such that the concentration-gradient layer can be formed from a core to a shell of the positive electrode active material in a more economically advantageous and stable manner, and at the same time a positive electrode active material having an elongated lifespan and improved thermal stability can be provided. |
申请公布号 |
WO2011087309(A9) |
申请公布日期 |
2012.02.09 |
申请号 |
WO2011KR00278 |
申请日期 |
2011.01.14 |
申请人 |
ECOPRO CO.LTD.;YU, JONG RYEOL;CHOI, SEUNG PHIL;SHIN, KYUNG;CHOI, MOON HO |
发明人 |
YU, JONG RYEOL;CHOI, SEUNG PHIL;SHIN, KYUNG;CHOI, MOON HO |
分类号 |
H01M4/505;C01B13/14;H01M4/525;H01M10/0525 |
主分类号 |
H01M4/505 |
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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