Synthesis of Sb-pyromellitic acid metal-organic framework material and its sodium storage properties.

ABSTRACT: Developing electrode materials with high capacity and low cost is crucial for promoting the application of sodium-ion batteries. In this paper, a new Sb-PMA-300 metal-organic framework (MOF) material is synthesized by chelation of Sb³⁺ and pyromellitic acid (PMA) followed by a heat treatment at 300 °C. As anodes for sodium-ion batteries, the Sb-PMA-300 composite exhibits a stable capacity of 443 mA h g^-1 at a current density of 0.1 A g^-1. At a current density of 1 A g^-1, the discharge capacity is maintained at 326.4 mA h g^-1 after 200 cycles. The electrode process dynamics of this material are mainly controlled by diffusion. The values of the diffusion coefficient of Na⁺ are between 10^-12 and 3.0 × 10^-10

SUBMITTER: He Z 

PROVIDER: S-EPMC10236144 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature