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April 25, 2026European Journal of Mechanics - A/SolidsOpen Access

Discrete element modelling of mechanical degradation mechanisms in lithium-ion battery electrode layers

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Authors

ALAxel Lundkvist PLPer‐Lennart Larsson EOErik Olsson

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Overview

Randomized trial investigates mechanical degradation in lithium-ion battery electrodes, indicating critical roles of active particles and conductive binder domains.

Key Points

The aim is to explore the mechanical degradation mechanisms in lithium-ion battery electrodes using discrete element modelling.
Used discrete element method modelling framework to simulate mechanical degradation of electrode constituents.
Performed simulations for calendering, charge cycling, and tensile testing to analyze fracture behavior.
Investigated interactions between active particles and conductive binder domains under various loading conditions.
Fracture of active particles significantly reduced the electrode layer's load-bearing capacity (e.g., up to 30% loss under certain simulations).
Conductive binder domain fractures were the main driver of mechanical integrity loss, especially after extensive charge cycling.
Under tensile loading, the maximum tensile stress was primarily limited by the fracture of the conductive binder domain.

Cite This Study

Lundkvist et al. (2026) studied this question.

synapsesocial.com/papers/69ec59c688ba6daa22dab73e https://doi.org/10.1016/j.euromechsol.2026.106175

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April 25, 2026European Journal of Mechanics - A/SolidsOpen Access

Discrete element modelling of mechanical degradation mechanisms in lithium-ion battery electrode layers

View Full Paper

Ask AI

Bookmark

Authors

ALAxel Lundkvist PLPer‐Lennart Larsson EOErik Olsson

Discussion

Member takes

Overview

Randomized trial investigates mechanical degradation in lithium-ion battery electrodes, indicating critical roles of active particles and conductive binder domains.

Key Points

The aim is to explore the mechanical degradation mechanisms in lithium-ion battery electrodes using discrete element modelling.
Used discrete element method modelling framework to simulate mechanical degradation of electrode constituents.
Performed simulations for calendering, charge cycling, and tensile testing to analyze fracture behavior.
Investigated interactions between active particles and conductive binder domains under various loading conditions.
Fracture of active particles significantly reduced the electrode layer's load-bearing capacity (e.g., up to 30% loss under certain simulations).
Conductive binder domain fractures were the main driver of mechanical integrity loss, especially after extensive charge cycling.
Under tensile loading, the maximum tensile stress was primarily limited by the fracture of the conductive binder domain.

Cite This Study

Lundkvist et al. (2026) studied this question.

synapsesocial.com/papers/69ec59c688ba6daa22dab73e https://doi.org/10.1016/j.euromechsol.2026.106175

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