Advanced TiO₂/Al₂O₃ Bilayer ALD Coatings for Improved Lithium-Rich Layered Oxide Electrodes.

ABSTRACT: Surface modification is a highly effective strategy for addressing issues in lithium-rich layered oxide (LLO) cathodes, including phase transformation, particle cracking, oxygen gas release, and transition-metal ion dissolution. Existing single-/double-layer coating strategies face drawbacks such as poor component contact and complexity. Herein, we present the results of a low-temperature atomic layer deposition (ALD) process for creating a TiO₂/Al₂O₃ bilayer on composite cathodes made of AS200 (Li_1.08Ni_0.34Co_0.08Mn_0.5O₂). Electrochemical analysis demonstrates that TiO₂/Al₂O₃-coated LLO electrodes exhibit improved discharge capacities and enhanced capacity retention comp

SUBMITTER: Chen WM 

PROVIDER: S-EPMC10941074 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature