Journal Article

Carbon coated titanium dioxide (CC-TiO2) as an efficient anode material for sodium- ion batteries

Kumar, Rahul, Bhargava, Parag, Pradeep, Anagha

2025

Overview

TiO 2 has attracted a lot of attention as anode material for sodium-ion batteries due to its higher operating voltage, safely and low lost material, but TiO 2 has two main issues, low electronic conductivity and slow solid-state ion diffusion. These issues have been successfully resolved by researchers using carbon coating on TiO 2 . In this work, carbon coated TiO 2 (CC-TiO 2) nanoparticles have been synthesized by using TiO 2 and sucrose as soluble source of carbon. The carbon coating on TiO 2 particles was formed after heat treatment in inert atmosphere. CC-TiO 2 particles exhibited reversible capacity of 116 mAh g − 1 at 0.1 C after 50 cycles, and high capacity retention of 77% after 100 cycles in a sodium-ion battery cell. The impressive electrochemical performance of the TiO 2 particles is due to several factors: the small size of the crystallites, the continuous electronic network created by the close contact of individual carbon-coated TiO 2 particles, and the efficient penetration of the mesopores by the electrolyte.

• Publisher: Springer International Publishing,Springer Nature B.V,SpringerOpen
• Subject: Anode materials / Anodes / Battery cycles / Brief Communication / Carbon / Carbon based materials / Carbon coated titanium dioxide (CC-TiO2), Sodium ion batteries / Cell size / Chemistry and Materials Science / Coatings / Crystallites / Crystals / Diffusion coating / Diffusion rate / Electrochemical analysis / Electrode materials / Heat treatment / Heat treatments / Inert atmospheres / Ion diffusion / Materials Science / Nanoparticles / Renewable and Green Energy / Sodium / Sodium channels (voltage-gated) / Sodium-ion batteries / Sucrose / Titanium dioxide / Titanium dioxide (TiO2)