Work

Synthesis of High-Sulfur-Content Resins via Inverse Vulcanization Using Dithiols and Their Application as Cathode Materials for Lithium–Sulfur Rechargeable Batteries

Year: 2025

Type: article

Abstract: In this study, we developed lithium–sulfur rechargeable batteries using chemically modified thermoplastic sulfur polymers as cathode active materials, aiming to effectively utilize surplus sulfur resources. The resulting high-sulfur-content resins exhibited self-healing properties, extensibility, and adhesiveness. By leveraging its high solubility in specific organic solvents, we successfully introduced sulfur-based compounds into porous carbon via vacuum impregnation using a solution, rather than conventional thermal impregnation. Charge–discharge measurements of lithium–sulfur (Li-S) secondary batteries assembled with this more uniform composite cathode, compared to those using elemental sulfur, demonstrated an increased discharge capacity in the initial cycles and at higher rates.

Source: Electrochem

DOI: 10.3390/electrochem6010008

Authors: Hiroto Tominaga, Junichi Tokomoto, Kenjiro Onimura, Kazuhiro Yamabuki

Institution: Yamaguchi University

Language: English

Topic: Advanced Battery Materials and Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Responsible consumption and production

Open Access status: gold

Estimated APC paid: $1,207