Combined influence of concentration-dependent properties, local deformation and boundary confinement on the migration of Li-ions in low-expansion electrode …
In this article, a low expansion electrode particle is investigated for mechanical stresses
during lithiation with intrinsic and extrinsic factors included. The stress states are estimated …
during lithiation with intrinsic and extrinsic factors included. The stress states are estimated …
Coupling effects of self-limiting lithiation, reaction front evolution and free volume evolution on chemical stress in amorphous wire-based electrodes
The lithiation of silicon (Si) involves the evolution of reaction front, self-limiting lithiation, and
visco-plastic deformation. During the lithiation of crystalline Si, solid-state amorphization …
visco-plastic deformation. During the lithiation of crystalline Si, solid-state amorphization …
[HTML][HTML] Improving predictions of amorphous-crystalline silicon interface velocity through alloying-dealloying reactions in lithium-ion battery anode particles
A Bhowmick, J Chakraborty - International Journal of Solids and Structures, 2021 - Elsevier
An improved mathematical model for the first lithiation of crystalline silicon is presented in
the finite deformation framework. The crystalline-amorphous silicon interface kinetics is …
the finite deformation framework. The crystalline-amorphous silicon interface kinetics is …
Instability analysis of Li-ion battery electrode particles induced by chemomechanical growth using incremental deformation theory
A Bhowmick, J Chakraborty - International Journal of Non-Linear …, 2024 - Elsevier
Volumetric swelling due to lithiation into active battery materials is a well-known
phenomenon. A chemo-mechanical framework can suitably explain the deformations of the …
phenomenon. A chemo-mechanical framework can suitably explain the deformations of the …
Predicting non-axisymmetric growth and facet evolution during lithiation of crystalline silicon anode particles through orientation-dependent interface reaction
A Bhowmick, J Chakraborty - International Journal of Solids and Structures, 2023 - Elsevier
A finite deformation modeling framework is developed to capture the experimentally
observed two-phase, non-axisymmetric growth during the first lithiation of crystalline silicon …
observed two-phase, non-axisymmetric growth during the first lithiation of crystalline silicon …
A mathematical model for mechanically-induced deterioration of the binder in lithium-ion electrodes
This study is concerned with modeling detrimental deformations of the binder phase within
lithium-ion batteries that occur during cell assembly and usage. A two-dimensional …
lithium-ion batteries that occur during cell assembly and usage. A two-dimensional …
Surface effects in cylindrical anode particles: Mechanical versus electrochemical performance determined by charging condition in lithium-ion batteries
A Sengupta, J Chakraborty - Journal of Applied Physics, 2021 - pubs.aip.org
Surface stresses, in nano-sized battery anode particles undergoing chemomechanical
interactions, have a compressive effect on diffusion-induced stresses. This, on the one hand …
interactions, have a compressive effect on diffusion-induced stresses. This, on the one hand …
[HTML][HTML] A coupled electrochemomechanical model for the cycling of a Cu15Si4-hosted silicon nanowire
In this paper, we present and analyse a coupled electrochemomechanical model for the
cycling of a nanowire composed of amorphous Si coated on Cu 15 Si 4, using large …
cycling of a nanowire composed of amorphous Si coated on Cu 15 Si 4, using large …
Role of in situ electrode environments in mitigating instability-induced battery degradation
RH Yeerella, HSS Boddeda, A Sengupta… - Journal of Applied …, 2020 - pubs.aip.org
Silicon nanowires and nanotube electrode particles are known for their high charge capacity
and good cyclability. However, since Si undergoes volumetric expansion of more than 300 …
and good cyclability. However, since Si undergoes volumetric expansion of more than 300 …
Sharp-interface formation during lithium intercalation into silicon
In this study, we present a phase-field model that describes the process of intercalation of Li
ions into a layer of an amorphous solid such as amorphous silicon (a-Si). The governing …
ions into a layer of an amorphous solid such as amorphous silicon (a-Si). The governing …