材料科學與工程學系 林孟昌副教授-以生質材料及功能性智慧高分子建立開發高效能鋁硫電池技術平台

  • 刊登日期: 2024-01-11
申請系所(單位) 材料科學與工程學系
計畫主持人 林孟昌副教授 ( 個人網頁 )
計畫名稱(中文) 以生質材料及功能性智慧高分子建立開發高效能鋁硫電池技術平台
計畫名稱(英文) Establishment and Development of a High-performance Aluminum-sulfur Battery Platform using Bio-based Materials and Functional Smart Polymers
共同主持人 1.森林系 陳奕君副教授 2.化學工程學系 黃智峯教授
協同主持人
中文摘要 為了助力台灣實現2050淨零排放能源政策目標,響應五大科技研發方向與十二項關鍵戰略內容,其中的永續能源(儲能)與低碳(低碳製程)為主要發展方向。鋁硫電池理論重量能量密度達1392瓦時/公斤,為目前鋰離子電池理論能量密度的三倍以上,且鋁硫電池可提供高安全性、低成本等優勢,是理想的電化學儲能技術,但仍須克服正極活性物質不穩定,充放電過程中產生的硫化物會發生溶解與不可逆等問題。本計畫旨在通過導入高孔隙導電生質材料及功能性智慧高分子用於建立開發高效能鋁硫電池平台。在硫/碳複合正極與凝膠電解質的基礎上,使用高孔隙導電生質材料作為硫/碳複合正極的負載基材,可最大化提升電池的電容量,同時達成低碳製程;後續在正極表面披覆功能性陰離子高分子層,用以抑制硫氯化物正離子產生穿梭效應,進而提高鋁硫電池的循環壽命。
英文摘要 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.