Results 21 to 30 of about 2,288,729 (253)
Carbon Energy, 2023 The crystal plane plays a very important role in the properties of Ni‐rich cathodes. [003] crystallographic texture regulation has been proven to improve structural stability, and yet, the discrepancy of particles with different exposed ratios of [003 ...
Lang Qiu +15 more
doaj +1 more source
Enhancing cyclic and in-air stability of Ni-Rich cathodes through perovskite oxide surface coating [PDF]
, 2022 Ni-rich layered oxides, such as LiNi0.8Co0.1Mn0.1O2 (NCM811), are promising cathode materials for high-energy lithium-ion batteries. However, the relatively high reactivity of Ni in NCM811 cathodes results in severe capacity fading originating from the ...
Xu, Zhemi +25 more
core +1 more source
Advanced Materials Interfaces, 2023 Ni‐rich layered oxides are considered as promising cathodes for next‐generation lithium‐ion batteries. However, they still suffer microstructure and surface instability particularly under high operating voltage, leading to rapid capacity fading and ...
Wen Hu +3 more
doaj +1 more source
The Role of Ni and Co in Suppressing O‐Loss in Li‐Rich Layered Cathodes [PDF]
, 2020 Lithium‐rich transition metal cathodes can deliver higher capacities than stoichiometric materials by exploiting redox reactions on oxygen. However, oxidation of O2− on charging often results in loss of oxygen from the lattice. In the case of Li2MnO3 all
House, Robert +19 more
core +1 more source
Nature Communications, 2020 Developing understanding of degradation phenomena in nickel rich cathodes is under intense investigation. Here the authors use learning-assisted statistical analysis and experiment-informed mathematical modelling to resolve the microstructure of a Ni ...
Zhisen Jiang +10 more
doaj +1 more source
Kinetic Origin of Planar Gliding in Single-Crystalline Ni-Rich Cathodes
, 2022 Single-crystalline Ni-rich cathodes with high capacity have drawn much attention for mitigating cycling and safety crisis of their polycrystalline analogues. However, planar gliding and intragranular cracking tend to occur in single crystals with cycling,
Yu-Gang Zou (1751887) +12 more
core +1 more source
, 2022 Ni-rich cathodes are the most promising candidates for realizing high-energy-density Li-ion batteries. However, the high-valence Ni4+ ions formed in highly delithiated states are prone to reduction to lower valence states, such as Ni3+ and Ni2+, which ...
Choi, Nam-Soon +15 more
core +1 more source
Oxygen Activities Governing Structural Reversibility in Industrial Ni-Rich Layered Cathodes [PDF]
The chemical reactions and phase transitions at high voltages determine the electrochemical properties of high voltage layered cathodes such as Ni-rich rhombohedral materials.
Maxim, Avdeev +13 more
core +1 more source
The stability and redox mechanisms of Ni-rich NMC cathodes: Insights from first-principles many-body calculations [PDF]
Ni-rich LiNi_aMn_bCo_cO_2 (NMC) cathodes undergo a series of degradation reactions, a prominent one being oxygen loss from the surface of the NMC particles, this process being more pronounced as Ni content is increased and at high voltages.
Hrishit, Banerjee +2 more
core +2 more sources
Nature Communications, 2021 Interface architecture generated from electrolyte additives is a key element for high performance lithium-ion batteries. Here, the authors present that a stable and spatially deformable solid electrolyte interphase mitigates interfacial degradation of Si-
Sewon Park +9 more
doaj +1 more source