| 发明名称 |
NONSTOICHIOMETRIC TITANIUM COMPOUND, CARBON COMPOSITE OF THE SAME, METHOD FOR PRODUCING THE COMPOUND, NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY CONTAINING THE COMPOUND, AND LITHIUM ION SECONDARY BATTERY USING THE NEGATIVE ELECTRODE ACTIVE MATERIAL |
| 摘要 |
Provided is a highly safe lithium-ion secondary battery with a gradual voltage decrease, high charge/discharge capacity, and ease of handling, in which explosion due to expansion, heat generation, ignition, and the like is prevented. A non-stoichiometric titanium compound represented by a chemical formula Li 4+x Ti 5-x O 12 (where 0<x<0.30), a non-stoichiometric titanium compound represented by a chemical formula Li 9+x Ti 5-x-y Nb y O 12 (where 0<x<0.30, 0<y<0.20) , and carbon-composite non-stoichiometric titanium compounds Li 4+x Ti 5-x O 12 /C (where 0<x<0.30) and Li 4+x Ti 5-x-y Nb y O 12 /C (where 0<x<0.30, 0<y<0.20) obtained by applying a carbon composite-forming process thereto, an active material of negative electrode for a lithium-ion secondary battery using the compound, and a lithium-ion secondary battery using the active material of negative electrode. |
| 申请公布号 |
EP2357691(A4) |
申请公布日期 |
2013.01.23 |
| 申请号 |
EP20090824650 |
申请日期 |
2009.06.25 |
| 申请人 |
INCORPORATED NATIONAL UNIVERSITY IWATE UNIVERSITY |
发明人 |
KUMAGAI, NAOAKI;KADOMA, YOSHIHIRO;YOSHIKAWA, DAISUKE |
| 分类号 |
H01M4/48;C01G23/00;C01G33/00;H01M4/36;H01M4/58 |
主分类号 |
H01M4/48 |
| 代理机构 |
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