Toward Cost-Effective High-Energy Lithium-Ion Battery Cathodes: Covalent Bond Formation Empowers Solid-State Oxygen Redox in Antifluorite-Type Lithium-Rich Iron Oxide
Hiroaki Kobayashi,
Yuki Nakamura,
Yumika Yokoyama
et al.
Abstract:Affordable and high-energy lithium-ion batteries are pivotal for advances in sustainability. To this end, antifluorite-type Li 5 FeO 4 cathodes have recently gained attention due to their costeffectiveness and theoretical capacity exceeding 300 mAh g −1 . Notably, metastable cubic Li 5 FeO 4 has achieved a reversible capacity of 346 mAh g −1 , utilizing cationic iron and anionic oxygen redox reactions. However, the cyclability of solid-state oxygen redox in this system is hindered by concurrent, irreversible, … Show more
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