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Apparent Increasing Lithium Diffusion Coefficient with Applied Current in Graphite
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DOI：10.1149/1945-7111/abaf9f.png)
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Abstract
En 中文
In this study, we assert that the apparent lithium diffusion coefficient in graphite active particles in the negative electrodes of lithium-ion cells increases appreciably with the intercalation rate. This assertion is based on an electrochemical model analysis of a wide range of electrochemical micro-reference electrode full cell studies on a coated natural graphite and other literature results. While the mechanism for this increase is a subject of further investigation, the results of our study suggest that the lithium transport in the graphite does not limit the maximum attainable charging rate in typical lithium-ion cells for electric vehicles.
Keywords:
lithium-ion battery
graphite electrode active material
lithium diffusion rate
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3.3
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3.3W
Citations:
9.4W
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