Electrochemical Model-Based Investigation of Thick LiFePO4 Electrode Design Parameters
نویسندگان
چکیده
The electrification of the powertrain requires enhanced performance lithium-ion batteries, mainly in terms energy and power density. They can be improved by optimising positive electrode, i.e., changing their size, composition or morphology. Thick electrodes increase gravimetric density but generally have an inefficient performance. This work presents a 2D modelling approach for better understanding design parameters thick LiFePO4 electrode based on P2D model discusses it with common literature values. With superior macrostructure providing vertical transport channel lithium ions, simple could developed to find best structure macro- microstructure currents up 4C. thicker more important are direct valid paths within entire porous structure. On smaller scale, particle binder content, porosity tortuosity were identified as very impactful parameters, they all attributed microstructure. Both optimisation knowledge real is essential cross-validation cellular lamellar freeze-casted has shown. A procedure was presented that uses parametric study when few known.
منابع مشابه
Enhanced Electrochemical Properties of LiFePO4 as Positive Electrode of Li-Ion Batteries for HEV Application
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ژورنال
عنوان ژورنال: Modelling
سال: 2021
ISSN: ['2673-3951']
DOI: https://doi.org/10.3390/modelling2020014