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Firstly, this paper reviews the definitions of the key states of lithium-ion batteries, including State of Charge (SOC), State of Power (SOP), State of Function (SOF), State of Energy (SOE), State of Health (SOH), Remaining Useful Life (RUL), State of Temperature (SOT) and State of Safety (SOS), and analyzes their coupling relationships. Then, it classifies and elaborates the methods for joint estimation of battery double states. In the future, multi-state joint estimation can further improve the estimation accuracy. Advanced sensor technologies, such as fiber-optic sensors, can more accurately measure the internal state quantities of batteries. At present, battery group state estimation is mostly focused on individual cells, and it is necessary to further explore the joint estimation at the battery module and group levels. Given the nonlinear characteristics of lithium-ion batteries, machine learning can achieve higher estimation accuracy with relatively low complexity. With the development of big data and cloud technologies, new-type battery state estimation will become a trend.
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| 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 |
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