High Voltage Cycling Stability of LiF-Coated NMC811 Electrode.

ABSTRACT: The development of LiNi_0.8Mn_0.1Co_0.1O₂ (NMC811) as a cathode material for high-energy-density lithium-ion batteries (LIBs) intends to address the driving limitations of electric vehicles. However, the commercialization of this technology has been hindered by poor cycling stability at high cutoff voltages. The potential instability and drastic capacity fade stem from irreversible parasitic side reactions at the electrode-electrolyte interface. To address these issues, a stable nanoscale lithium fluoride (LiF) coating is deposited on the NMC811 electrode via atomic layer deposition. The nanoscale LiF coating diminishes the direct contact between NMC811 and the electrolyte, suppressing the detrimental parasitic reactions. LiF-NMC811 delivers cycling

SUBMITTER: Llanos PS 

PROVIDER: S-EPMC10797589 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature