What question did this study set out to answer?

To develop a mechanical model that accurately describes the behavior of positive electrodes in all-solid-state lithium batteries under various loading conditions.

April 10, 2026Energy EngineeringOpen Access

Mechanical Modelling of Positive Electrode in All-Solid-State Battery Cells

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Authors

VCVilim CvenkUniversity of Zagreb FMFilip MaletićCroatian Science Foundation SESimon ErkerUniversity of Zagreb

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Implication

Introduces a model analyzing electrode behavior in all-solid-state batteries, highlighting implications for performance and stability.

Key Points

To develop a mechanical model that accurately describes the behavior of positive electrodes in all-solid-state lithium batteries under various loading conditions.
Developed a cyclic plastic hardening model for ceramic electrolytes.
Conducted Finite Element Method (FEM) analysis on a positive electrode representative volume element.
Utilized a thermal expansion analogy to simulate volumetric changes during lithiation and de-lithiation cycles.
Approximated the plastic behavior of LLZO using a proxy material model (SiMo5 steel at 700°C).
Analyzed stress distribution and contact dynamics over five charge-discharge cycles.
Identified progressive strain hardening in the solid electrolyte under mechanical loading.
Observed increasing tensile stresses and stabilizing volumetric deformation during cycling.
Revealed cyclic contact loss during de-lithiation, potentially increasing interfacial resistance.
Demonstrated the significance of external assembly pressure (10 MPa) on mechanical performance.

Cite This Study

Cvenk et al. (2026) studied this question.

synapsesocial.com/papers/69d8948f6c1944d70ce057a5 https://doi.org/10.32604/ee.2026.077842

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Mechanical Modelling of Positive Electrode in All-Solid-State Battery Cells

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Member takes

Implication

Key Points

Cite This Study

Mechanical Modelling of Positive Electrode in All-Solid-State Battery Cells

Discussion

Member takes

Implication

Key Points

Cite This Study

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