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In recent years, advancements in energy density, charging speed, and lifespan have been achieved in traction batteries through material innovation, structural optimization, and management system upgrades. However, the safety design of traction batteries adopting new technologies remains a critical challenge, particularly in addressing risks associated with fast charging, bottom impacts, and thermal events. This paper systematically reviews key innovation directions in traction battery technology, including structural design and chemical system upgrades, while conducting analysis on corresponding safety enhancement strategies derived from these technological breakthroughs. From a testing and evaluation perspective, it explores frontier safety issues such as fast charging, bottom impact, and thermal propagation behaviors. A multi?level safety evaluation framework for traction batteries across their lifecycle was proposed, integrating experimental and simulation approaches. This study provides theoretical support and practical recommendations for advancing traction battery technology and optimizing testing and evaluation methods.
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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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