| 发明名称 | Positive electrode active material for secondary battery and secondary battery using the same | ||
| 摘要 | A positive electrode active material for a lithium ion secondary battery having high discharge energy and capable of suppressing capacity drop with cycles and a secondary battery using the same are provided at lower cost. A positive electrode active material for a secondary battery according to a first aspect of the exemplary embodiment is represented by the following formula (I): Lia(FexNiyMn2-x-y)O4 (I) where 0.2<x≦1.2, 0<y<0.5 and 0≦a≦1.2. Furthermore, a positive electrode active material for a secondary battery according to a second aspect of the exemplary embodiment is represented by the following formula (II): Lia(FexNiyMn2-x-y-zAz)O4 (II) where 0.2≦x≦1.2, 0<y<0.5, 0≦a≦1.2 and 0<z≦0.3; A is at least one selected from the group consisting of Li, B, Na, Mg, Al, K and Ca. | ||
| 申请公布号 | US9299475(B2) | 申请公布日期 | 2016.03.29 |
| 申请号 | US201113881301 | 申请日期 | 2011.11.04 |
| 申请人 | NEC CORPORATION | 发明人 | Uehara Makiko;Noguchi Takehiro;Sasaki Hideaki |
| 分类号 | H01B1/08;H01M4/505;H01M4/525;C01G45/12;C01G49/00;C01G53/00;H01M10/052 | 主分类号 | H01B1/08 |
| 代理机构 | Sughrue Mion, PLLC | 代理人 | Sughrue Mion, PLLC |
| 主权项 | 1. A positive electrode active material for a secondary battery, represented by the following formula (II): Lia(FexNiyMn2-x-y-zAz)O4 (II) where 0.4≦x≦1.2, 0.2<y<0.5, 0≦a≦1.2 and 0<z≦0.3; and A is at least one selected from the group consisting of B, Na, Mg, Al, K and Ca. | ||
| 地址 | Tokyo JP | ||