Recent progress of ion-doping methods in modifying layered oxide cathode materials for sodium-ion batteries

Highlights in Science Engineering and Technology, Journal Year: 2024, Volume and Issue: 116, P. 343 - 349

Published: Nov. 7, 2024

Typically, the cathode materials contribute most in achieving commercialization of sodium-ion batteries (SIBs) as cathodes take up proportion full cells cost. Hence, developing with a high specific capacity, perfect capacity retention, long cycling lifetime, and strong chemical/environmental stability is undoubted importance. Researchers are now using many methodologies to improve performance different types cathodes. Among all these, ion-doping used modifying layered oxide (NaxTMO2, which TM=transition metal; 0<x≤1) seem be one popular methods. This because that NaxTMO2 offer energy density Na+ conductivity, while methods could help mitigate phase transition, sluggish kinetics, air instability challenges. As result, this review summarizes recent progress ion-doped modification strategies, divided into three parts dealing above challenges respectively. work targets for facilitating development commercial pave way next generation storage systems.

Language: Английский

Core–shell structured carbon@tin sulfide@hard carbon spheres as high-performance anode for low voltage sodium-ion battery

New Journal of Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 12, 2024

This study introduces a core–shell C@Sn x S y @HCS composite anode for sodium-ion batteries, achieving low discharge voltage (0.5 V), high initial Coulombic efficiency (73.56%), excellent rate capability, and outstanding cycling stability.

Language: Английский