Identification of mechanism consistency for LFP/C batteries during accelerated aging tests based on statistical distributions

Guo, Wendi; Sun, Zhongchao; Vilsen, Søren Byg; Blaabjerg, Frede; Stroe, Daniel‐Ioan

doi:10.1016/j.prime.2023.100142

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Cited by 2 publications

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Solid electrolyte interface layer growth - crack formation coupled model for Lithium-ion battery capacity fade prediction

Guo,

Li,

Sun

et al. 2023

2023 25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe)

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Solid electrolyte interface layer growth - crack formation coupled model for Lithium-ion battery capacity fade prediction

Guo,

Li,

Sun

et al. 2023

2023 25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe)

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Using the BWA (Bertaut-Warren-Averbach) Method to Optimize Crystalline Powders Such as LiFePO4

Bobyl,

Konkov,

Faradzheva

et al. 2023

Mathematics

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The average sizes L¯i, and their dispersion Wi along the i-th axis, of crystallites in powders are used to determine X-ray diffraction sizes, Di XRD, averaged over crystallite columns within the BWA method. Numerical calculations have been carried out for an orthorhombic lattice of crystallites, such as LiFePO4, NMC, having a Lamé’s g-type superellipsoid shape. For lognormal distributions, the analytical expression for the normalized coefficient Kn has been found: Kn=Di XRD/L¯i=Kg,0+KgW2, where Kg,0 is a constant at W→0, Kg is a constant depending on the g -type shape. The dependences of Di XRD are also calculated for normal distribution. A fairly simple equation can be obtained as a result of analytical transformations in the framework of experimentally validated approximations. However, a simpler way is to carry out numerical computer calculations with subsequent approximation of the calculated curves. Using the obtained analytical expressions to control technologies from nuclear fuel to cathode materials will improve the efficiency of flexible energy network, especially storage in autonomous and standby power plants.

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Identification of mechanism consistency for LFP/C batteries during accelerated aging tests based on statistical distributions

Cited by 2 publications

References 24 publications

Solid electrolyte interface layer growth - crack formation coupled model for Lithium-ion battery capacity fade prediction

Solid electrolyte interface layer growth - crack formation coupled model for Lithium-ion battery capacity fade prediction

Using the BWA (Bertaut-Warren-Averbach) Method to Optimize Crystalline Powders Such as LiFePO4

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