Photothermal-Conversion-Enhanced LiMn2O4 Pouch Cell Performance for Low-Temperature Resistance: A Theoretical Study

doi:10.3390/batteries9070366

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	Photothermal-Conversion-Enhanced LiMn2O4 Pouch Cell Performance for Low-Temperature Resistance: A Theoretical Study
	S. Tian, Z. F. Liu, Q. Yang, N. Xu, X. Li, D. J. Wang, R. R. Liu and W. Lue
	2023
发表期刊	Batteries-Basel
卷号	9 期号:7 页码:20
摘要	Lithium-ion batteries (LIBs) suffer from charging difficulties, capacity decay, and severe ageing in a low-temperature environment. In this work, we suggest a theoretical study and strategy for improving the low-temperature resistance of LiMn2O4(LMO) pouch cells, by introducing a photothermal conversion layer composed of copper and single-walled carbon nanotubes. A three-dimensional electrochemical-thermal coupling model for a lithium manganate battery is established, in which the photothermal conversion layer is attached on the surface of the cathode collector, and the effect of lug design is also discussed. The changes in the battery temperature field, and improvements in electrochemical performance before and after light preheating, are analyzed. The results show that, when the photothermal conversion film is applied, the LMO pouch cell's temperature rises 2.7 & DEG;C/min in a -5 & DEG;C environment, and the surface-temperature averaging is improved. The concentration of lithium embedded in the anode is significantly increased, and the charging speed is enhanced by 20%. The batteries with a single-sided lug design exhibit better performance compared with those with a two-sided lug design. Validation of the presented model is performed, by comparing it with the experimental Panasonic UF653445ST commercial battery datasheet. This work provides theoretical guidance on improving the low-temperature performance of pouch cells, based on the photothermal conversion method.
DOI	10.3390/batteries9070366
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收录类别	sci ; ei
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67894
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	S. Tian, Z. F. Liu, Q. Yang, N. Xu, X. Li, D. J. Wang, R. R. Liu and W. Lue. Photothermal-Conversion-Enhanced LiMn2O4 Pouch Cell Performance for Low-Temperature Resistance: A Theoretical Study[J]. Batteries-Basel,2023,9(7):20.
APA	S. Tian, Z. F. Liu, Q. Yang, N. Xu, X. Li, D. J. Wang, R. R. Liu and W. Lue.(2023).Photothermal-Conversion-Enhanced LiMn2O4 Pouch Cell Performance for Low-Temperature Resistance: A Theoretical Study.Batteries-Basel,9(7),20.
MLA	S. Tian, Z. F. Liu, Q. Yang, N. Xu, X. Li, D. J. Wang, R. R. Liu and W. Lue."Photothermal-Conversion-Enhanced LiMn2O4 Pouch Cell Performance for Low-Temperature Resistance: A Theoretical Study".Batteries-Basel 9.7(2023):20.

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