Full
Outline
To clarify the internal thermal effect of a battery during its charging process, a lithium-ion battery of 27 A·h was taken as the research object. A three-dimensional electrochemical-thermal coupling model of one single battery was established, and the coordinate array mapping method was used to expand the thermal effect of the cell unit to that of the single battery. First, the influence of charging rate on the heat production of the battery was investigated. Then, the detailed heat production in the active layer of negative electrode with different particle radiuses was studied, and the mechanism of influence of particle size on the heat production was analyzed. In addition, the battery temperature distribution with different charging rates under natural convection was also studied. The heating mechanism of lithium-ion battery was elaborated upon, and the overall temperature distribution characteristics of the battery was given, providing a theoretical basis for optimizing the battery structure design and developing the battery thermal management system.
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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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