公开(公告)号：US20070122338A1

公开(公告)日：2007-05-31

申请号：US11643672

申请日：2006-12-22

Applicant: Hong-Kyu Park ,  Seong-Yong Park ,  Yong-Hoon Kwon ,  Joon-Sung Bae ,  Ki-Young Lee ,  Jin-On Kim

Inventor： Hong-Kyu Park ,  Seong-Yong Park ,  Yong-Hoon Kwon ,  Joon-Sung Bae ,  Ki-Young Lee ,  Jin-On Kim

IPC: C01G45/12 ,  H01M4/50

CPC classification number: H01M4/505 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/525

Abstract: Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same, in particular a positive active material and preparation method of the same that can improve cycle-life characteristics at a high temperature and room temperature, and storage characteristics at a high temperature. The present invention has the effect of providing a positive active material and preparation method of the same that can improve cycle-life characteristics at room temperature and at a high temperature, and storage characteristics at a high temperature, by coating the surface of the lithium manganese spinel oxide particles with a lithium metal complex oxide.

Abstract translation: 公开了一种用于锂二次电池的正极活性材料及其制备方法，特别是正极活性材料及其制备方法，其可以改善高温和室温下的循环寿命特性，以及储存特性 高温。 本发明的效果是提供一种正极活性物质及其制备方法，其可以通过涂覆锂锰的表面，从而提高室温和高温下的循环寿命特性和高温下的储存特性 具有锂金属复合氧化物的尖晶石氧化物颗粒。