Abstract
AbstractExploring negative electrodes for high‐performance Li‐ion power packs and related issues that are hampering their commercialization is a particularly important topic of research. This study investigates the electrochemical activity of low‐cost and typical conversion‐type hematite (α‐Fe2O3) anodes in practical assemblies, namely, full‐cell configurations. Numerous studies have reported improvements in the electrochemical activity of α‐Fe2O3 in half cells with Li by tuning the morphology or formulating composites with carbonaceous materials. However, these studies are not sufficient to market them for practical assemblies with conventional cathodes like LiCoO2, LiMn2O4, LiFePO4 and its derivatives, mainly because of large polarization problems, such as, hysteresis, irreversible capacity loss, volume variation, and capacity fading. Eliminating these issues in the fabrication of full cells is necessary, and this study reviews relevant research activities and discusses future prospects in the field.
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