Authors: A. Emir Gumrukcuoglu, James Burridge, Kieran O’Regan, Jamie M. Foster

Published on: April 25, 2024

Impact Score: 7.2

Arxiv code: Arxiv:2404.16658

Summary

• What is new: A novel methodology for inferring diffusivity in lithium-ion battery materials that is simpler, faster, and potentially more accurate than the current Galvanostatic Intermittent Titration Technique (GITT).
• Why this is important: The GITT is time-consuming and relies on assumptions that may not be applicable, creating a need for a more efficient and accurate method.
• What the research proposes: The proposed method infers diffusivity by minimizing the residual sum of squares between experimental data and solutions to a spherically-symmetric diffusion model in a single active material particle.
• Results: The method successfully reproduces diffusivities inferred by the traditional GITT using significantly less data while potentially offering more accurate results.

Technical Details

Technological frameworks used: nan

Models used: Spherically-symmetric diffusion model

Data used: Data from the NMC cathode of a commercial LG M50 cell

Potential Impact

Battery manufacturing, electric vehicle companies, and mobile device manufacturers could greatly benefit from improved lithium-ion battery development methods.

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