In the paper, the basic structure, working principle and recycling status of lithium−ion battery are introduced, and the main recycling methods of positive electrode materials are discussed in detail. The latest progress of waste lithium−ion battery recycling technology was reviewed, including the development of recycling process, the products recovered and the impact of recycling on the environmental burden, as well as the options for decommissioning ion batteries, including battery secondary utilization, direct regeneration and repair of electrode materials, hydrometallurgical or pyrometallurgical recovery materials. This study suggests several future research directions for recycling technologies that will help academics and policymakers take the necessary steps to achieve a circular economy in the lithium battery value chain.Improvement suggestions have been proposed for the existing recycling and reuse technologies of waste lithium−ion batteries in terms of battery material recovery rate, recycling system, comprehensive recycling of electrolytes, separators, and negative electrode materials.
| 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 |