| 发明名称 | Composite cathode active material having improved power characteristics, and secondary battery, battery module, and battery pack including the same | ||
| 摘要 | Provided is a composite cathode active material including layered lithium manganese oxide and lithium-containing metal oxide. Also, the present invention provides a secondary battery, a battery module, and a battery pack which have improved power characteristics by including the composite cathode active material. | ||
| 申请公布号 | US9614219(B2) | 申请公布日期 | 2017.04.04 |
| 申请号 | US201414463833 | 申请日期 | 2014.08.20 |
| 申请人 | LG Chem, Ltd. | 发明人 | Lee Min Hee;Park Jung Hwan;Kwon Ki Young |
| 分类号 | H01B1/08;H01M4/13;H01M4/36;H01M4/131;H01M4/505;H01M4/525;H01M4/62;H01M4/48;H01M4/52;C01G45/12;C01G53/00;H01M10/052;H01M4/02;H01M4/485 | 主分类号 | H01B1/08 |
| 代理机构 | Lerner, David, Littenberg, Kruholz & Mentlik, LLP | 代理人 | Lerner, David, Littenberg, Kruholz & Mentlik, LLP |
| 主权项 | 1. A composite cathode active material comprising: a layered lithium manganese oxide represented by Chemical Formula 1 shown below; and a lithium-containing metal oxide represented by Chemical Formula 3 shown below, wherein a mixing ratio of the layered lithium manganese oxide represented by Chemical Formula 1 and the lithium-containing metal oxide represented by Chemical Formula 3 is in a weight ratio ranging from 90:10 to 70:30, a[Li2MnO3].(1−a)[LiM1O2] Chemical Formula 1 wherein, 0<a<1 and M1 is one or more metals selected from the group consisting of manganese (Mn), nickel (Ni), cobalt (Co), iron (Fe), chromium (Cr), vanadium (V), copper (Cu), zinc (Zn), titanium (Ti), aluminum (Al), magnesium (Mg), and boron (B); and Li(NixCoyAlz)O2 Chemical Formula 3 wherein, 0.45≦x≦0.90, 0.05≦y≦0.35, 0.005≦z≦0.20, and x+y+z=1. | ||
| 地址 | KR | ||