发明名称 |
High performance lithium titanium spinel L14T15012 for electrode material |
摘要 |
Nanostructured Li4Ti5O12 (spinel) was prepared via a method employing lithium ethoxide and Ti(IV) alkoxides as the starting reagents. The optimized materials contained less than 1% of anatase as the main impurity and, depending on the synthetic conditions, they exhibited the BET surface areas of 5-183 m<2>/g. Trace amount of anatase in Li4Ti5O12 was conveniently determined by cyclic voltammetry of Li-insertion. Thin-film electrodes from nanostructured Li4Ti5O12 spinel exhibit excellent activity towards Li-insertion, even at charging rates as high as 250C. This behavior compares favorably with that of microcrystalline Li4Ti5O12 made by conventional high-temperature solid-state synthesis. A use of this compound in lithium secondary batteries is also disclosed. <IMAGE> |
申请公布号 |
AU2008203015(A1) |
申请公布日期 |
2008.07.31 |
申请号 |
AU20080203015 |
申请日期 |
2008.07.08 |
申请人 |
ALTAIRNANO, INC. |
发明人 |
TIMOTHY SPITLER;MICHAEL GRAETZEL;JAN PROCHAZKA;FRANCOIS SUGNAUX;LADISLAV KAVAN |
分类号 |
C01B13/36;C01G23/00;C01G23/053;C09C1/36;H01M4/04;H01M4/131;H01M4/1391;H01M4/48;H01M4/485;H01M8/02;H01M10/052;H01M10/0525;H01M10/36 |
主分类号 |
C01B13/36 |
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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