Sugeun Jo

Won Bae Kim Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang-si, Gyeongsangbuk-do, 37673 Republic of Korea Graduate Institute of Ferrous & Energy Materials Technology (GIFT), Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang-si, Gyeongsangbuk-do, 37673 Republic of Korea Search for more papers by this author

1 Introduction Li-ion batteries (LIBs) with Ni-rich layered oxide (NRLO, LiNix>0.8Tm1−xO2) cathodes and graphite anodes, which are primarily used in electric vehicles (EVs), can achieve an energy density of up to 300 Wh kg−1, with this value increasingly approaching the theoretical limit.[1, 2] The ever increasing energy density has prompted the need for an awareness of battery safety as a critical factor affecting the commercial application of batteries, because the higher the energy...

Abstract O2-type lithium-rich layered oxides, known for mitigating irreversible transition metal migration and voltage decay, provide suitable framework for exploring the inherent properties of oxygen redox. Here, we present a series of O2-type lithium-rich layered oxides exhibiting minimal structural disordering and stable voltage retention even with high anionic redox participation based on the nominal composition.