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|Title:||An electro-thermal model and its application on a spiral-wound lithium ion battery with porous current collectors|
Lithium ion battery
Porous current collector
|Source:||Ye, Y., Shi, Y., Saw, L.H., Tay, A.A.O. (2014-03-01). An electro-thermal model and its application on a spiral-wound lithium ion battery with porous current collectors. Electrochimica Acta 121 : 143-153. ScholarBank@NUS Repository. https://doi.org/10.1016/j.electacta.2013.12.122|
|Abstract:||A local electro-thermal model for a spiral-wound lithium ion battery is developed to provide detailed and local insights of electrochemistry, transport phenomenon and heat transfer processes in spiral-wound geometries. The discharging potential, bulk heat generation rate, battery surface temperature and the temperature distribution within battery predicted by the model are used to verify a lumped electro-thermal model. The results show good agreement between the lumped electro-thermal model and the local electro-thermal model. The edge effect is investigated using the local electro-thermal model. And the results indicate that a novel battery with porous current collector sheets has a higher utilization rate of porous electrode materials than a commercial battery with normal current collector foils. The novel battery with porous current collector sheets is also investigated using the local electro-thermal model, simulation results show smaller liquid phase potential gradient and smaller liquid concentration gradient in the novel battery. The increased electrical resistance has minor effect on the overall heat generation within the battery when the porous current collector is employed, while it reduces the discharging potential of the battery. © 2014 Elsevier Ltd.|
|Source Title:||Electrochimica Acta|
|Appears in Collections:||Staff Publications|
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