The lithium plating is the main reason for the performance degradation, temperature rise and expansion deformation of lithium-ion batteries (LIBs). In order to investigate the lithium plating amount (LPM), temperature variation and the damage of the cathodic particles during the charging of LIBs. Firstly, an electrochemical-thermal-stress coupling model with lithium plating is developed. Then, the influences of charge rate on the cathodic electrical potential and LPM are analyzed. Finally, the effects of the initial temperature, charging mode and cathodic particle radius on the LPM, average temperature and Von Mises stress of cathodic particle are discussed, respectively. Numerical results show that LPM increases with the increase of charge rate. In order to reduce LPM, temperature rise and Von Mises stress during the charge, the charge at lower initial temperature should be avoided, the cathodic particle radius should be reduced or multi-stage constant current and constant voltage charging (4C to 6 A∙h, 3C to the cutoff voltage and constant voltage charging) should be used. This work will provide some guidance for reducing lithium plating.
| 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 |