| 发明名称 | Transition metal oxide containing solid solution lithium, non-aqueous electrolyte secondary battery positive electrode and non-aqueous electrolyte secondary battery | ||
| 摘要 | A transition metal oxide containing solid solution lithium contains a transition metal oxide containing lithium, which is represented by a chemical formula: Li1.5[NiaCobMnc[Li]d]O3 where 0<a<1.4; 0≦b<1.4; 0<c<1.4; 0.1<d≦0.4; a+b+c+d=1.5; and 1.1≦a+b+c<1.4. The transition metal oxide containing lithium includes: a layered structure region; and a region changed to a spinel structure by being subjected to charge or charge/discharge in a predetermined potential range. When a ratio of an entire change from Li2MnO3 with a layered structure in a region to be changed to the spinel structure to LiMn2O4 with the spinel structure is defined to be 1, a spinel structure change ratio of the transition metal oxide containing lithium is 0.25 or more to less than 1.0. | ||
| 申请公布号 | US9461299(B2) | 申请公布日期 | 2016.10.04 |
| 申请号 | US201314374607 | 申请日期 | 2013.02.01 |
| 申请人 | Nissan Motor Co., Ltd. | 发明人 | Ito Atsushi;Ohsawa Yasuhiko;Kaburagi Tomohiro;Yamamoto Shinji;Oshihara Kenzo |
| 分类号 | H01M4/131;H01M4/505;H01M4/525;C01G53/00;H01M4/36;H01M4/485;H01M4/1391;H01M4/02 | 主分类号 | H01M4/131 |
| 代理机构 | Young Basile Hanlon & MacFarlane, P.C. | 代理人 | Young Basile Hanlon & MacFarlane, P.C. |
| 主权项 | 1. A transition metal oxide containing solid solution lithium, the transition metal oxide comprising: a transition metal oxide containing lithium being represented by a chemical formula: Li1.5[NiaCobMnc[Li]d]O3 where Li is lithium, Ni is nickel, Co is cobalt, Mn is manganese, O is oxygen, a, b, c and d satisfy relationships: 0<a<1.4; 0≦b<1.4; 0<c<1.4; 0.1<d≦0.4; a+b+c+d=1.5; and 1.1≦a+b+c<1.4, wherein the transition metal oxide containing lithium includes: a layered structure region; and a region changed to a spinel structure by being subjected to charge or charge/discharge in a predetermined potential range, when a ratio of an entire change from Li2MnO3 with a layered structure in a region to be changed to the spinel structure to LiMn2O4 with the spinel structure is defined to be 1, a spinel structure change ratio of the transition metal oxide containing lithium is 0.25 or more to less than 1.0, wherein a BET specific surface area of the transition metal oxide containing lithium is 1 m2/g or more to 8.0 m2/g or less, and a pore volume in the transition metal oxide containing lithium, the pore volume being measured by nitrogen, is 0.025 cm3/g or less when a relative pressure is 0.98 to 0.99, and wherein a median diameter (D50) of the transition metal oxide containing lithium is less than 15 μm, and the transition metal oxide containing lithium includes particles with a particle diameter of less than 1 μm. | ||
| 地址 | Yokohama-Shi, Kanagawa JP | ||