锂(药物)
电极
离子
材料科学
光电子学
工程物理
汽车工程
化学
工程类
心理学
精神科
物理化学
有机化学
作者
Vittorio De Lauri,Lukas Krumbein,Simon Hein,Benedikt Prifling,Volker Schmidt,Timo Danner,Arnulf Latz
出处
期刊:ACS applied energy materials
[American Chemical Society]
日期:2021-12-09
卷期号:4 (12): 13847-13859
被引量:17
标识
DOI:10.1021/acsaem.1c02621
摘要
Lithium-ion batteries are the dominating electrochemical energy storage technology for battery electric vehicles.However, additional optimization is needed to meet the requirements of the automotive industry regarding energy density, cost, safety and fast charging performance.In conventional electrode designs there is a trade-off between energy density and rate capability.Recently, 3D structuring techniques, such as laser perforation, were proposed to optimize both properties at the same time and remarkable improvements in fast-charging performance have been demonstrated.In this 1 work we investigate the effect of structuring techniques on the thermal properties and electrochemical performance of the battery using microstructure resolved simulations.Particular attention will be paid to the heat evolution and lithium plating during fastcharging of the batteries.According to our results, 3D structuring is able to reduce the overall cell resistance by improving the electrolyte transport.This has a positive impact on the fast charging capability of the cell and, moreover, reduces the danger of lithium plating.
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