SONG Chenxi (1998-), female, Ph.D., candidate. E-mail: scx20@mails.tsinghua.edu.cn
High-nickel cathode materials are one of the most promising candidates for lithium-ion batteries with superior comprehensive performance. These materials can achieve higher energy density than conventional lithium cobalt oxide, and have lower cost and high environmental benignity. To reduce the cost further to meet the growing energy demand, the development of cobalt-free high-nickel cathode materials becomes one of research challengess. This review discussed the feasibility of cobalt removal and the key challenges for cobalt-free high-nickel cathodes. The modification strategies were summarized based on recent related studies. In addition, the future research direction of cobalt-free high-nickel cathodes was also proposed.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |