高能SiO-硫电池与预加载的Li3N在阴极中作为化反应剂
Peng-Fei Wang1,2, Jian-Cang Wang1,2, Nan Zhang1,2
1School of Materials Science and Engineering, Northeastern University, Shenyang 110819, P. R. China.
Langmuir : the ACS journal of surfaces and colloids
|April 12, 2024
概括
这项研究引入了一种新型的阳极 (SiO) 硫电池,使用化 (Li3N) 进行先化. 这种方法有效地解决了树石问题和聚硫化物副作用反应,使高能电池成为可能.
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) 电池具有高能量密度的前景,但受到穿效应和树增长的影响.
- 使用 (SiO) 阳极代替金属可以减轻这些问题,但需要有效的先化.
研究的目的:
- 为SiO-硫电池开发一种新的预化策略.
- 为了解决阳极中的树突形成和聚硫化物副作用反应.
主要方法:
- 一个新的SiO-硫电池设计,将预装化 (Li3N) 纳入阴极,作为预化试剂.
- 制造和电化学测试S@KB-Li3N与SiO全细胞.
主要成果:
- 拟议的预化方法有效地抑制了树的生长和与多硫化物的副作用反应.
- 该S@KB-Li3N与SiO全电池在激活后达到790mAhg-1的高特异容量.
- 在100个循环后,维持了478 mAh g-1的稳定容量.
结论:
- 基于Li3N的预化策略为无树和稳定的SiO-硫电池提供了可行的解决方案.
- 这种方法为开发高特异能SiO硫电池系统提供了新的途径.
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