Origin of voltage decay in high-capacity layered oxide electrodes. Factors that affect Li mobility in layered lithium transition metal oxides. Metal–oxygen decoordination stabilizes anion redox in Li-rich oxides. A new type of Li-rich rock-salt oxide Li 2Ni 1/3Ru 2/3O 3 with reversible anionic redox chemistry. High-capacity cathode material with high voltage for Li-ion batteries. New insights into improving rate performance of lithium-rich cathode material. Gradient Li-rich oxide cathode particles immunized against oxygen release by a molten salt treatment. Lithium-excess cation-disordered rocksalt-type oxide with nanoscale phase segregation: Li 1.25Nb 0.25V 0.5O 2. ![]() Hidden structural and chemical order controls lithium transport in cation-disordered oxides for rechargeable batteries. Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Role of electronic structure in the susceptibility of metastable transition-metal oxide structures to transformation. The configurational space of rocksalt-type oxides for high-capacity lithium battery electrodes. Lithium diffusion mechanisms in layered intercalation compounds. Quantification of surface oxygen depletion and solid carbonate evolution on the first cycle of LiNi 0.6Mn 0.2Co 0.2O 2 electrodes. Residual lithium carbonate predominantly accounts for first cycle CO 2 and CO outgassing of Li-stoichiometric and Li-rich layered transition-metal oxides. A comparison of high voltage outgassing of LiCoO 2, LiNiO 2, and Li 2MnO 3 layered Li-ion cathode materials. Correlating the phase evolution and anionic redox in Co-free Ni-rich layered oxide cathodes. High reversibility of lattice oxygen redox quantified by direct bulk probes of both anionic and cationic redox reactions. Anionic and cationic redox and interfaces in batteries: advances from soft X-ray absorption spectroscopy to resonant inelastic scattering. In situ X-ray absorption study of a layered manganese-chromium oxide-based cathode material. Cation-disordered rocksalt transition metal oxides and oxyfluorides for high energy lithium-ion cathodes. Unlocking the potential of cation-disordered oxides for rechargeable lithium batteries. Atomic insight into electrochemical inactivity of lithium chromate (LiCrO 2): irreversible migration of chromium into lithium layers in surface regions. Structure and electrochemistry of Li xCr 圜o 1− yO 2. Changes in the cation ordering of layered O3 LixNi 0.5Mn 0.5O 2 during electrochemical cycling to high voltages: an electron diffraction study. Effect of high voltage on the structure and electrochemistry of LiNi 0.5Mn 0.5O 2: a joint experimental and theoretical study. Comprehensive study of the CuF 2 conversion reaction mechanism in a lithium ion battery. Fading mechanisms and voltage hysteresis in FeF 2–NiF 2 solid solution cathodes for lithium and lithium-ion batteries. ![]() Designing the next generation high capacity battery electrodes. Comprehensive insights into the structural and chemical changes in mixed-anion FeOF electrodes by using operando PDF and NMR spectroscopy. Conversion cathodes for rechargeable lithium and lithium-ion batteries. Encyclopedia of Inorganic and Bioinorganic Chemistry (2011). in Handbook of Advanced Electronic and Photonic Materials and Devices (ed. ![]() LiNi 0.5 +δMn 0.5–δO 2-A high-rate, high-capacity cathode for lithium rechargeable batteries. Electrodes with high power and high capacity for rechargeable lithium batteries. This study provides a new perspective on the design of high-performance cathode materials by demonstrating how the interplay between Li and transition metal migration in materials can be conducive to fast non-topotactic Li intercalation/de-intercalations. Using this concept, we show that high-rate performance can be achieved in Mn- and Ni-based cation-disordered rocksalt materials when some of the transition metal content can reversibly switch between octahedral and tetrahedral sites. The fast non-topotactic lithiation reaction is enabled by facile and reversible transition metal octahedral-to-tetrahedral migration, which improves rather than impedes Li transport. ![]() In contrast to this conventional view, here we demonstrate that the rate capability in a Li-rich cation-disordered rocksalt cathode can be significantly improved when the topotactic reaction is replaced by a non-topotactic reaction. High-rate cathode materials for Li-ion batteries require fast Li transport kinetics, which typically rely on topotactic Li intercalation/de-intercalation because it minimally disrupts Li transport pathways.
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