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对于2D过渡金属二甲基化物向硫电池的设计原则

Xiaoyu Yu¹, Yifan Ding¹, Jingyu Sun¹

¹College of Energy, Soochow Institute for Energy and Materials Innovations, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215006, P.R.China.

|August 21, 2023

概括

二维过渡金属二甲基化物 (TMDs) 有效地解决硫 (Li-S) 电池的关键挑战,例如穿效应和树突增长,为先进的储能解决方案铺平了道路.

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,但存在实际限制.
穿效应,缓慢的动力学和树突成长阻碍了Li-S电池的性能.
二维过渡金属二甲基化物 (TMDs) 正成为一个有前途的材料战略.

研究的目的:

审查 Li-S 电池中 2D TMD 的开发和应用.
突出TMD如何减轻Li-S电池技术中的重大挑战.
为基于TMD的Li-S电池提出未来研究方向.

主要方法:

对Li-S电池的2DTMD现有文献的审查.
分析TMDs在硫化学和阳极稳定中的作用.
对TMD材料的合成路线的讨论.

主要成果:

纯粹的,混合的和有缺陷的TMD显示出提高Li-S电池性能的潜力.
TMDs可以有效地抑制穿效应并稳定阳极.
TMDs的应用有助于加速硫氧化还原化学.

结论:

2DTMD是克服Li-S电池限制的重要材料策略.
对TMD的进一步研究可以指导高性能Li-S电池的设计.
TMDs为下一代能源存储提供了一个有希望的路线图.

关键词:

设备设备设备能量材料是能源材料.

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相关概念视频

Properties of Transition Metals

Properties of Transition Metals

Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.