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  1. No Access

    Article

    Amorphous iron fluorosulfate as a high-capacity cathode utilizing combined intercalation and conversion reactions with unexpectedly high reversibility

    To achieve the desirable dual characteristics of high-capacity performance and low-cost production for the batteries of tomorrow, leveraging of multi-redox reactions of Earth-abundant transition metals in elec...

    Jaehoon Heo, Sung-Kyun Jung, Insang Hwang, Sung-Pyo Cho, Donggun Eum… in Nature Energy (2023)

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    Article

    In situ multiscale probing of the synthesis of a Ni-rich layered oxide cathode reveals reaction heterogeneity driven by competing kinetic pathways

    Nickel-rich layered oxides are envisaged as key near-future cathode materials for high-energy lithium-ion batteries. However, their practical application has been hindered by their inferior cycle stability, wh...

    Hyeokjun Park, Hayoung Park, Kyung Song, Seok Hyun Song, Sungsu Kang… in Nature Chemistry (2022)

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    Article

    Electrical and optical properties of VO2 thin films grown on various sapphire substrates by using RF sputtering deposition

    VO2 thin films were grown on a-, c-, m-, and r-plane sapphire and SiO2/Si substrates under identical conditions by using RF sputtering deposition from a VO2 target. The structural and the morphological properties...

    Dae Ho Jung, Hyeon Seob So, Kun Hee Ko… in Journal of the Korean Physical Society (2016)