A hydrothermal approach to create core-shell nanoparticles: The case of LiMnPO4 with a Fe-rich surface layerстатья
Статья опубликована в высокорейтинговом журнале
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 4 марта 2026 г.
Аннотация:The development of protective coatings to prevent adverse interactions between electrode materials and elec-trolytes is a critical challenge in metal-ion battery research. This approach is particularly relevant for improvingthe cycling performance of LiMnPO4 (LMP) cathode materials, which have 20% higher energy density thanwidely used LiFePO4 (LFP) cathodes but suffer from rapid degradation. This study introduces a novel hydro-thermal method to form a protective coating on LMP particles through treatment with Fe2+ ions. Electrochemicaltesting shows a significant improvement in cycling performance for LMP@Fe/C electrodes compared with pureLMP. HAADF-STEM images of the samples before annealing confirm the formation of a flat, iron-rich surfacelayer several nanometers thick, which is in good agreement with results from PXRD, EDX, and 57Fe Mossbauerspectroscopy studies. These findings suggest that the proposed coating method provides a promising solution forsynthesizing core–shell nanoparticles.