Nd-MOF/CNF衍生的 Nd2O3-C/CNF复合物的对硫电池的影响
Xinye Qian1, Shuailong Zhao1, Qingyuan Hao1
1Institute for Advanced Materials, College of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, P. R. China. qianxy@ujs.edu.cn.
Dalton transactions (Cambridge, England : 2003)
|July 3, 2024
概括
研究人员开发了一种新的Nd2O3-C/CNF复合物,以减轻硫电池中的穿效应. 这种材料提高了分离器强度和电池安全性,从而提高了电化学性能.
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:
- 可溶性聚硫化物 (LiPS) 的穿效应显著阻碍了实用的硫 (Li-S) 电池的开发.
- 需要有效的策略来抑制LiPS穿,并提高电池性能和安全性.
研究的目的:
- 开发一种用于Li-S电池分离器的新型复合材料,以抑制穿效应.
- 为了提高Li-S电池分离器的机械强度和安全性.
主要方法:
- 通过在碳纳米纤维 (CNF) 中嵌入Nd-MOF来制造Nd2O3-C/CNF复合物.
- 使用Nd2O3-C/CNF复合材料作为分离器修改材料.
- 复合材料结构的特征及其对聚硫化物转运的影响.
主要成果:
- 在CNF中嵌入的Nd2O3-C结构创造了具有协同效应的更紧密的复合材料.
- 修改后的分离器有效地抑制了聚硫化物的穿效应.
- 观察到分离器的增强拉伸强度和电池安全性能的提高.
- 经过修改的分离器使硫硬币电池具有出色的电化学性能.
结论:
- Nd2O3-C/CNF复合材料是修改Li-S电池分离器的一个有希望的材料.
- 这种修改策略有效地抑制了穿效应,增强了分离器的完整性,并改善了电池的整体安全性和电化学性能.
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