A Practical and Sustainable Ni/Co-Free High-Energy Electrode Material: Nanostructured LiMnO₂.

ABSTRACT: Ni/Co-free high-energy positive electrode materials are of great importance to ensure the sustainability of Li-ion battery production and its supply chain in addition to minimizing environmental impact. Here, nanostructured LiMnO₂ with both orthorhombic/monoclinic layered domains is synthesized, and its lithium storage properties and mechanism are examined. High-energy mechanical milling is used to convert the metastable and nanosized LiMnO₂ adopting the cation-disordered rocksalt structure to an optimal domain-segregated layered LiMnO₂. This positive electrode produces an energy density of 820 W h kg^-1, achieved by harnessing a large reversible capacity with relatively small voltage hysteresis on electrochemical cycles. Moreover, voltage decay f

SUBMITTER: Miyaoka Y 

PROVIDER: S-EPMC11428382 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature