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| Number | Title | Issue Date |
| 6986968 | Cathode active material for lithium secondary cell and method for manufacturing the same A cathode active material for a lithium secondary cell used in a cellular phone is disclosed. The cathode active material for the lithium secondary cell and the method the same having a high capacity and a long lifetime, different from LiCoO2 and LiMn | 01/17/2006 |