通过并联催化利用深度硫转化为全固态硫电池.
Huilin Ge1,2, Yu Long1,2,3,4, Dulin Huang5
1Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage, State Key Laboratory of Chemical Engineering and Low-Carbon Technology, School of Chemical Engineering and Technology, National Industry-Education Integration Platform of Energy Storage, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China.
National science review
|January 15, 2026
概括
这项研究引入了全固态硫电池 (ASSLSB) 的并联催化,通过Li2S2.2.实现了通过Li2S2.2.将硫转化为Li2S的深度转化. 这种方法显著提高了电池容量和循环寿命.
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
- 催化剂是一种催化剂.
背景情况:
- 全固态硫电池 (ASSLSBs) 提供高能量密度和安全性.
- 不完整的硫转化限制了ASSLSBs的全部容量.
研究的目的:
- 通过 Li2S2 实现 S8 通过 Li2S2 的深度转化,使用并联催化.
- 提高ASSLSB的能力和绩效.
主要方法:
- 在MXene基板上使用单原子催化剂 (Co SACs) 进行合催化.
- 通过Li2S2中间体对S8逐步减少为Li2S进行研究.
主要成果:
- 通过使用Co@MXene.使用Li2S2通过Li2S2将S8逐步减少到Li2S.
- Co SACs 打破了 S-S 债券,MXene 促进了 Li+ 扩散,降低了能源障碍.
- 在室温下在2.8 mA cm-2下2000个循环后达到1329 mAh g-1的高容量.
结论:
- 双重催化有效地调整了ASSLSB中的硫转化途径.
- 这一战略为高性能ASSLSB解锁了深度硫转化.
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