Establishment and Development of a High-performance Aluminum-sulfur Battery Platform using Bio-based Materials and Functional Smart Polymers

  • Publication Date: 2024-01-11
Application Dept. Department of Materials Science and Engineering
Principal Investigator Associate Professor Meng-Chang Lin
Project Title Establishment and Development of a High-performance Aluminum-sulfur Battery Platform using Bio-based Materials and Functional Smart Polymers
Co-Principal Investigator 1.Associate Professor Yi-Chun Chen/Department of Forestry 2.Professor Chih-Feng Huang/Department of Chemical Engineering
Co-Investigator
Abstract In order to help Taiwan achieve the 2050 net-zero emission goal, in response to the five primary scientific and technological research and development directions and twelve essential strategic contents, sustainable energy (energy storage) and low-carbon (low-carbon manufacturing processes) are the core development directions. The theoretical gravimetric energy density of aluminum-sulfur batteries reaches 1392 Wh/kg, more than three times the theoretical energy density of lithium-ion batteries. Aluminum-sulfur batteries can provide high safety and low cost advantages and are an ideal electrochemical energy storage technology. However, problems such as the instability of the cathode active material and the dissolution and irreversibility of sulfides generated during charging and discharging must be overcome. This project aims to establish and develop a high-efficiency aluminum-sulfur battery platform by introducing highly porous conductive biomass materials and smart functional polymers. Based on the sulfur/carbon composite cathode and gel electrolyte, using highly porous conductive biomass materials as the sulfur/carbon composite cathode matrix can maximize the battery capacity and achieve a low-carbon process. The surface of the cathode electrode is coated with a functional anionic polymer layer, which can inhibit the shuttle effect of sulfur chloride cations, improving the cycle life of aluminum-sulfur batteries.