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通过调节CS键的形成,用于先进的硫电池的玉米草衍生的和氧合碳宿主

Xinpeng Gao¹, Yuxian Liu², Ying Han¹

¹School of Energy and Environment Science, Yunnan Normal University, Kunming, Yunnan 650500, China; Southwest United Graduate School, Kunming, Yunnan 650500, China.

Journal of colloid and interface science

|May 17, 2025

概括

这项研究开发了一种新的生物质衍生碳宿主,用于室温硫电池. 这种材料有效地抑制了聚硫化物穿,增强了电网储能的循环稳定性.

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:

室温-硫 (RT Na-S) 电池由于大量的和低成本,对电网存储具有吸引力.
主要的挑战是聚硫化物的运输,这限制了循环稳定性.

研究的目的:

开发用于RT Na-S电池的稳定阴极材料,使用生物质衍生碳.
通过一种新的硫主机设计来解决聚硫化物转运问题.

主要方法:

从玉米来制造和氧自补充的多孔碳材料 (NOC).
通过蒸汽透,对NOC宿主进行硫的共价载荷.
电化学表征包括现场拉曼和现场XRD.

主要成果:

NOC/S 阴极表现出优异的电导率和孔状结构,促进了离子运输和体积膨胀.
理论计算和实验结果证实了硫和化碳宿主之间增强的结合.
协同结合的硫有效抑制了穿效应,导致优越的电化学性能和循环稳定性.

结论:

生物质衍生有N和O兴奋剂的多孔碳是RT Na-S电池的有希望的宿主.
协同硫载荷通过减轻聚硫化物穿,显著提高了循环稳定性.
这种方法为先进的硫电池开发提供了具有成本效益的战略.

关键词:

这是一种玉米草.具有共价键的硫.含有N,O剂量的碳.在室温的硫电池.

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