Negative active material for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same
A negative active material for a rechargeable lithium battery, a method of preparing the negative active material, and a rechargeable lithium battery including the negative active material. The negative active material for a rechargeable lithium battery includes lithium titanium oxide (Li4Ti5O12) having a tap density of about 1.2 g/cc to 2.2 g/cc. The lithium titanium oxide is prepared by a mechano-chemical treatment and a heat treatment at a low temperature of about 650° C. to 775° C. According to the present invention, lithium titanium oxide having high crystallinity and tap density can be prepared through a simple and low-cost solid-phase method, e.g., a mechano-chemical treatment, and thus an electrode with excellent electrochemical reactivity and high energy density per volume can be fabricated.
Samsung SDI Co., Ltd.
H Y H H H H H H H
H01M Y02E H01B H01M H01M H01M H01M H01M H01M
inventional additional inventional additional additional inventional inventional inventional inventional
Eui-Hwan Kyeu-Yoon Tae-Keun Yong-Chul Jun-Sik Jin-Kyu Man-Seok
Song Sheem Kim Park Kim Hong Han