Impact of Li<sub>2</sub>O<sub>2</sub> Particle Size
on Li–O<sub>2</sub> Battery Charge Process: Insights from a
Multiscale Modeling Perspective
Yinghui Yin
Caroline Gaya
Amangeldi Torayev
Vigneshwaran Thangavel
Alejandro A. Franco
10.1021/acs.jpclett.6b01823.s001
https://acs.figshare.com/articles/journal_contribution/Impact_of_Li_sub_2_sub_O_sub_2_sub_Particle_Size_on_Li_O_sub_2_sub_Battery_Charge_Process_Insights_from_a_Multiscale_Modeling_Perspective/3844053
We report a comprehensive
multiscale model describing charge processes
of Li–O<sub>2</sub> batteries. On the basis of a continuum
approach, the present model combines mathematical descriptions of
mass transport of soluble species (O<sub>2</sub>, Li<sup>+</sup>,
LiO<sub>2</sub>) and elementary reaction kinetics, which are assumed
to be dependent on the morphology of the Li<sub>2</sub>O<sub>2</sub> formed during discharge. The simulated charge curves are in agreement
with previously reported experimental studies. The model along with
the assumed reaction mechanisms provides physical explanations for
the two-step charge profiles. Furthermore, it suggests that these
charge profiles depend on the size of the Li<sub>2</sub>O<sub>2</sub> particles, which are determined by the applied current density during
discharge. Therefore, the model underlines the strong link between
discharge and charge processes.
2016-09-16 00:00:00
discharge
Li 2 O 2
charge profiles
Li 2 O 2 Particle Size
Multiscale Modeling Perspective
Li 2 O 2 particles
charge processes
model