| 发明名称 | Positive electrode active substance, positive electrode material, positive electrode, and non-aqueous electrolyte secondary battery | ||
| 摘要 | Disclosed is a positive electrode active substance for a non-aqueous electrolyte secondary battery including a composite oxide containing lithium and nickel, in which the positive electrode active substance has a structure of secondary particles formed by aggregation of primary particles. The average particle diameter of the primary particles (D1) is 0.9 μm or less. The average particle diameter of the primary particles (D1) and the standard deviation (σ) of the average particle diameter of the primary particles (D1) meet the relationship of D1/σ2≧24. | ||
| 申请公布号 | US9537148(B2) | 申请公布日期 | 2017.01.03 |
| 申请号 | US201414771106 | 申请日期 | 2014.02.27 |
| 申请人 | NISSAN MOTOR CO., LTD. | 发明人 | Kaseda Manabu;Ibuka Shigeo;Tanizaki Hiroaki;Nagano Kodai;Uwai Kenta |
| 分类号 | H01M4/505;H01M4/131;H01M4/525;H01M10/052;H01M10/0525;H01M4/02 | 主分类号 | H01M4/505 |
| 代理机构 | Foley & Lardner LLP | 代理人 | Foley & Lardner LLP |
| 主权项 | 1. A positive electrode active substance for a non-aqueous electrolyte secondary battery comprising a composite oxide containing lithium and nickel, wherein the positive electrode active substance has a structure of secondary particles formed by aggregation of primary particles, the average particle diameter of primary particles (D1) is 0.9 μm or less, the average particle diameter of the primary particles (D1) and the standard deviation (σ) of the average particle diameter of the primary particles (D1) meet the relationship of D1/σ2≧24, and the tap density of the positive electrode active substance is 2.3g/cm3 or more. | ||
| 地址 | Yokohama-Shi JP | ||