Enhancing the reversibility of the chemical evolution of the Ni-rich LiNi_0.8Co_0.1Mn_0.1O₂ cathode via a simple pre-oxidation process.

ABSTRACT: For developing commercially viable LiNi_1-x-yMn_xCo_yO₂ (NCM), it is necessary to alleviate the irreversible chemical process upon Li-ion insertion/extraction, which primarily accounts for prevailing capacity loss, impedance buildup as well as low columbic efficiency. To resolve this issue, we herein propose a simple but novel method to alter the chemical composition by a facile treatment of H₂O₂, which remarkably reduces the cation mixing of Li⁺/Ni²⁺ and residual lithium on the cathode. The tailored composition contributes great resistance to the structural reconstruction and enhancement in structural reversibility, as shown by in situ Raman and high-resolution transmiss

SUBMITTER: Mo Y 

PROVIDER: S-EPMC10793639 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature