Direct Observation of Dynamic Lithium Diffusion Behavior in Nickel-Rich, LiNi_0.8Mn_0.1Co_0.1O₂ (NMC811) Cathodes Using Operando Muon Spectroscopy.

ABSTRACT: Ni-rich layered oxide cathode materials such as LiNi_0.8Mn_0.1Co_0.1O₂ (NMC811) are widely tipped as the next-generation cathodes for lithium-ion batteries. The NMC class offers high capacities but suffers an irreversible first cycle capacity loss, a result of slow Li⁺ diffusion kinetics at a low state of charge. Understanding the origin of these kinetic hindrances to Li⁺ mobility inside the cathode is vital to negate the first cycle capacity loss in future materials design. Here, we report on the development of operando muon spectroscopy (μSR) to probe the Å-length scale Li⁺ ion diffusion in NMC811 during its first cycle and how this can be compared to electrochemical impedance spectroscopy (EIS) and the galv

SUBMITTER: McClelland I 

PROVIDER: S-EPMC10268956 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature