One-step atmospheric plasma-assisted synthesis of FeOOH and FeOOH/graphite high performance anode materials for lithium-ion batteries

• Published in: Applied surface science Vol. 597; p. 153698
• Main Authors: Beletskii, Evgenii V., Kamenskii, Mikhail A., Alekseeva, Elena V., Volkov, Alexey I., Lukyanov, Daniil A., Anishchenko, Dmitrii V., Radomtseu, Anton O., Reveguk, Anastasiya A., Glumov, Oleg V., Levin, Oleg V.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 30.09.2022
• Subjects: Atmospheric plasma solution synthesis; Conversion metal oxide anodes; FeOOH anode material; Lithium-ion batteries; Lithium-ion batteries; FeOOH anode material; Conversion metal oxide anodes; Atmospheric plasma solution synthesis
• ISSN: 0169-4332; 1873-5584
• DOI: 10.1016/j.apsusc.2022.153698

[Display omitted] •A high-performance amorphous FeOOH-based anode is developed for Li-ion batteries.•One-step atmospheric plasma-assisted synthesis of FeOOH composite with graphite.•A capacity of ∼ 750 mAh g−1 is sustained after 500 cycles at 0.3 A g−1.•A capacity of ∼ 550 mAh g−1 is sustained after 2000 cycles at 1.2 A g−1. Iron oxide derivatives are promising materials for large-scale use as anode materials, owing to their natural abundance, inexpensiveness, and high theoretical capacity. Here, we synthesized amorphous urchin-like FeOOH nanoparticles and their graphite composite (FeOOH/Gr) in a one-step atmospheric plasma-assisted procedure and employed it in anode materials for Li-ion batteries. The obtained FeOOH nanoparticles are up to 300 nm in diameter with a needle thickness of about (3–10)nm, while FeOOH/Gr composite consists of graphite sheets covered with FeOOH needles. The FeOOH and FeOOH/Gr materials show excellent electrochemical performance as anode materials, with 633 mAh g−1 and 740 mAh g−1 at 0.3 A g−1 after 500cycles, 353 mAh g−1 and 542 mAh g−1 at 1.2 A g−1 after 2000 cycles, respectively. By analyzing the state of the material at various stages of their life, we identify electrochemical milling as the performance-boosting process responsible for the 277% specific capacity increase during charge-discharge cycling after 50 cycles.