应用化学2025，Vol.42Issue(5)：668-674,7.DOI:10.19894/j.issn.1000-0518.240303
FeP纳米晶催化活化Li2S构建长寿命锂硫电池
FeP Nanocrystal Catalyzed Activation of Li2S for Establishment of Ultra-Stable Li-S Batteries
陈飞 1翟飞飞 1宋昊鑫 1吕盼1
作者信息
- 1. 国能信控技术股份有限公司,北京 102200
- 折叠
摘要
Abstract
Through a simple and easily scalable high-temperature in-situ pyrolysis of polymers,a self-supported core-shell structured flexible porous catalytic carrier is prepared for high-loading of active sulfur components.Introducing FeP nanocrystals within the shell layer accelerates the ion transport within the sulfur electrode structure and efficiently catalyzes the activation conversion of Li2 S,accelerating the conversion reaction of Li2 S↔S8 in Li-S batteries,ensuring high reversibility and long-term cycling stability of Li-S batteries.The prepared high-sulfur-loaded cathode exhibits high discharge specific capacity(1306.2 mA·h/g)and excellent long-term cycling stability(2 C→0.1 C,95.8%of capacity recovery rate).Battery disassembly analysis after cycling confirms the performance degradation mechanism of the assembled lithium-sulfur batteries under the experimental conditions.关键词
锂硫电池/磷化铁纳米晶/核壳结构/硫化锂活化/多孔载体Key words
Li-S batteries/FeP nanocrystal/Core-shell structure/Li2 S activation/Porous matrix分类
化学化工引用本文复制引用
陈飞,翟飞飞,宋昊鑫,吕盼..FeP纳米晶催化活化Li2S构建长寿命锂硫电池[J].应用化学,2025,42(5):668-674,7.
