What is it about?
Anode materials were prepared from natural graphite exhibiting varying degrees of spheronization. We observed a correlation between specific capacity and both specific surface area (SSA) and crystallite size, with a coefficient of determination R² = 0.997.
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Why is it important?
Understanding the impact of natural spheronized graphite on lithium-ion performance is important because particle morphology and microstructure directly govern key electrochemical metrics—specific and volumetric capacity, rate capability, and coulombic efficiency. Spheronization alters particle contact and packing density, reducing tortuosity and diffusion lengths and thereby improving active-material utilization at high rates. Conversely, excessive fragmentation increases surface area in ways that can destabilize the solid-electrolyte interphase, accelerate capacity fade, and compromise mechanical integrity during cycling.
Perspectives
Future research should integrate multiscale modeling with advanced in situ characterization to establish predictive structure–property relationships for spheronized graphite anodes.
Dr. Nikolai Morozov
Moskovskij gosudarstvennyj universitet imeni M V Lomonosova
Read the Original
This page is a summary of: Impact of Natural Spheronized Graphite Structure on Lithium-Ion Performance, Journal of The Electrochemical Society, November 2025, The Electrochemical Society,
DOI: 10.1149/1945-7111/ae1dd2.
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