化学改性碳在锂硫电池中的研究进展

自从我们课题组在2011年首次报道化学改性碳用于锂硫电池以来,其在锂硫电池中的应用便引起了人们的广泛关注。与传统碳质材料相比,化学改性碳在抑制多硫离子的溶解和扩散,实现锂硫电池长循环寿命方面展现出了其独特的优势和前景,已成为当前锂硫电池领域研究的热点和前沿。本综述主要报道了本课题组在化学改性碳高效利用硫材料以及其与多硫离子的化学和物理吸附协同作用高效固硫方面所取得的研究进展,系统介绍了不同化学改性碳的结构特点、优势及在锂硫电池中的应用,展望了化学改性碳在锂硫电池中的应用前景。

Progress of Lithium/Sulfur Batteries Based on Chemically Modified Carbon

Chemically modified carbon has attracted significant attention since our first report of its use in lithium/sulfur (Li/S) cells. Compared with traditional carbon materials, chemically modified carbon prevents the dissolution and diffusion of intermediate polysulfides. Therefore, it yields sulfur cathodes with long cycling stability, which has become the focus of current research in the field of Li/S batteries. This review summarizes the use of chemically modified carbon for highly efficient sulfur utilization and the synergistic chemical/physical trapping of sulfur species. The prospects of further developments of Li/S batteries using chemically modified carbon is also discussed.