Cobalt and zinc columbite compounds as new anode materials for Na-ion batteries.

ABSTRACT: Niobium-based oxide anode materials are promising anode materials for sodium ion batteries because of their high structural stability, safety, fast energy storage kinetics, and promising capacity. In this work, niobate compounds of the columbite type, ANb₂O₆ (A = Co²⁺ and Zn²⁺), prepared by a facile sol-gel method, are investigated as new anode materials for sodium ion batteries. The poor intrinsic electronic conductivity of the niobate anode materials is successfully overcome by coating the active materials with carbon in order to enhance Na-ion transport and storage. High-resolution transmission electron microscopy images reveal uniform coating of the carbon layer around the active particles to prevent agglomeration in both materials. While the

SUBMITTER: Rao YB 

PROVIDER: S-EPMC12447704 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature