Year: 2026
Type: article
Abstract: (NMC) at the forefront of commercial cathodes due to their superior performance. However, understanding the complex dynamics of lithium-ion diffusion within these materials remains a challenge, as conventional models used to analyze experimental results often simplify particle size distributions, intercalation kinetics and mechanisms, often ignoring interactions between particles. This study explores the anisotropic lithium-ion transport in NMC cathodes with octahedral particle morphologies. Using charge photometry (CP) under charge-rest protocols, the research unveils distinct transport behaviors across different facets of the particle. These findings, corroborated through finite element simulations, highlight the critical role of interparticle communication─an interaction previously underappreciated but shown here to be significant. By combining experimental evidence with computational modeling, this study provides a deeper comprehension of lithium-ion transport and the underlying mechanisms, offering valuable insights to future studies of active materials for battery applications.
DOI: 10.1021/jacs.5c15171
Authors: Veronika Šedajová, Gabriela Horwitz, Jiho Han, Alice J. Merryweather, George S. Phillips, Vikram S. Deshpande, Norman A. Fleck, Akshay Rao, Clare P. Grey
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
OpenAlex ID: W7125315442