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在Li-S电池中的单原子位点催化

Kun Wang^1,2, Sheng Liu^1,2, Zhenghao Shu^1,2

¹State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (i-ChEM), Engineering Research Centre of Electrochemical Technologies of Ministry of Education, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China.

Physical chemistry chemical physics : PCCP

|September 25, 2023

概括

单原子站点催化剂 (SASC) 是推动硫 (Li-S) 电池的关键,提高了阴极性能,并使下一代能源存储的实际应用成为可能.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
储能储能储能储能储能储能

背景情况:

硫 (Li-S) 电池具有较高的理论能量密度,使其成为下一代储能电池的前景.
在Li-S电池的学术进展是显著的,最近的重点转向实际应用挑战.
实际的Li-S电池应用需要高硫阴极负载和优化的电解质水平,需要先进的电极催化.

研究的目的:

为了介绍Li-S电池中硫 (S) 阴极的动力机制.
解释单原子位点催化剂 (SASC) 的概念和合成策略.
系统地审查SASCs在S阴极和相关功能介层/分离器中的进展情况.

主要方法:

文献综述和对Li-S电池的SASC研究进展的综合.
对S阴极中的动力机制的分析.
讨论SASCs的综合策略.

主要成果:

单原子站点催化剂 (SASCs) 显示出高活性和催化站点利用率,非常适合商业化Li-S电池.
SASC 显示了提高 S 阴极性能的巨大潜力.
研究已经推进了对SASCs在Li-S电池的功能介层和分离器中的理解和应用.

结论:

SASC对于克服Li-S电池的实际应用障碍至关重要.
该审查强调了与Li-S电池技术中SASC相关的机遇和挑战.
未来的研究应该专注于进一步开发和优化商用Li-S电池系统的SASC.

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