Battery Cathode with Vertically Aligned Microstructure Fabricated by Directional Ice Templating.

ABSTRACT: Conventional slurry coating (SC) makes battery electrodes with random microstructure containing tortuous pores that restrict lithium ion diffusion and reduce battery capacities at faster discharge rates. Herein, a novel directional ice templating (DIT) is developed to make LiNi0.8Mn0.1Co0.1O2 (NMC811) cathodes that double the electrode mass loading and contain vertically aligned lamellae of electrode materials and pore channels to provide fast dual electron and ion transport. DIT uses in situ evolved ice structures to form the anisotropic microstructure. The effects on the chemical composition, bonding, and morphology of the NMC811 particles are studied using a range of surface-sensitive techniques including time-of-flight secondary ion mass spectrometry, transmission electron microscopy,

SUBMITTER: Li G 

PROVIDER: S-EPMC12362797 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature