| 发明名称 | Compound, method for preparation of the same, and lithium secondary battery comprising the same | ||
| 摘要 | Disclosed are a novel compound, a method for preparing the same, and a lithium secondary battery comprising the same. More specifically, disclosed are a compound in which five MO6 octahedrons are bonded to one another around one MO6 octahedron such that the MO6 octahedrons share a vertex, to form hollows and Li cations substituted instead of Na cations using an ion substitution method are present in the hollows, and a crystal structure thereof is not varied even upon intercalation and deintercalation of Li cations, a method for preparing the same, and a lithium secondary battery comprising the same as a cathode active material. | ||
| 申请公布号 | US9373842(B2) | 申请公布日期 | 2016.06.21 |
| 申请号 | US201414501645 | 申请日期 | 2014.09.30 |
| 申请人 | LG CHEM, LTD. | 发明人 | Jung YoungHwa;Choi Youngsun;Hong Seung-Tae |
| 分类号 | H01M4/485;H01M10/0525;C01G55/00;H01M4/505;H01M4/525;H01M10/052 | 主分类号 | H01M4/485 |
| 代理机构 | Birch, Stewart, Kolasch & Birch, LLP | 代理人 | Birch, Stewart, Kolasch & Birch, LLP |
| 主权项 | 1. A cathode active material for a lithium secondary battery comprising at least one compound selected from compounds represented by the following Formula 1: LixNa1−xRu2−yMeyO4 (1)wherein 0<x≦1; 0<y≦2; Me is a metal or transition metal cation having an oxidation number of +2 to +4, and wherein the compound has a crystal structure in which five RuO6 octahedrons are bonded to one another around one RuO6 octahedron such that the RuO6 octahedrons share a vertex, to form hollows and Na cations and Li cations coexist in the hollows. | ||
| 地址 | Seoul KR | ||