@article{Sun_Song_Feng_Huang_Xu_Lu_Zou_2022, title={Carbon-Nitride-Based Materials for Advanced Lithium–Sulfur Batteries}, volume={14}, url={https://nmlett.org/index.php/nml/article/view/1219}, DOI={10.1007/s40820-022-00954-x}, abstractNote={<p>Lithium–sulfur (Li–S) batteries are promising candidates for next-generation energy storage systems owing to their high energy density and low cost. However, critical challenges including severe shuttling of lithium polysulfides&nbsp;(LiPSs) and sluggish redox kinetics limit the practical application of Li–S batteries. Carbon nitrides (C<sub><em>x</em></sub>N<sub><em>y</em></sub>), represented by graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>), provide new opportunities for overcoming these challenges. With a graphene-like structure and high pyridinic-N content, g-C<sub>3</sub>N<sub>4</sub> can effectively immobilize LiPSs and enhance the redox kinetics of S species. In addition, its structure and properties including electronic conductivity and catalytic activity can be regulated by simple methods that facilitate its application in Li–S batteries. Here, the recent progress of applying C<sub>x</sub>N<sub>y</sub>-based materials including the optimized g-C<sub>3</sub>N<sub>4</sub>, g-C<sub>3</sub>N<sub>4</sub>-based composites, and other novel C<sub><em>x</em></sub>N<sub><em>y</em></sub> materials is systematically reviewed in Li–S batteries, with a focus on the structure–activity relationship. The limitations of existing C<sub><em>x</em></sub>N<sub><em>y</em></sub>-based materials are identified, and the perspectives on the rational design of advanced C<sub><em>x</em></sub>N<sub><em>y</em></sub>-based materials are provided for high-performance Li–S batteries.</p> <p>Highlights:</p> <p>1 The recent advances in C<sub>x</sub>N<sub>y</sub>-based materials including the optimized g-C<sub>3</sub>N<sub>4</sub>, g-C<sub>3</sub>N<sub>4</sub>-based composites, and other novel C<sub>x</sub>N<sub>y</sub> materials are summarized.<br>2 The applications of C<sub>x</sub>N<sub>y</sub>-based materials in Li–S batteries are systematically discussed with a focus on the structure–activity relationship.<br>3 The perspectives on the rational design of advanced C<sub>x</sub>N<sub>y</sub>-based materials for high-performance Li–S batteries are provided.</p>}, journal={Nano-Micro Letters}, author={Sun, Wenhao and Song, Zihao and Feng, Zhenxing and Huang, Yaqin and Xu, Zhichuan J. and Lu, Yi‑Chun and Zou, Qingli}, year={2022}, month={Nov.}, pages={222} }