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在拓图形化碳中实现全板块和高容量插入

Xiang-Xi He^1,2, Wei-Hong Lai³, Yaru Liang⁴

¹School of Environmental and Chemical Engineering, Shanghai University, 200444, Shanghai, China.

Advanced materials (Deerfield Beach, Fla.)

|June 30, 2023

概括

研究人员从玉米中开发了一种新的硬碳阳极,用于高能离子电池. 这种材料促进了高效的离子插入,克服了电池开发中的关键挑战.

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
可持续能源可持续能源

背景情况:

高能量密度的离子电池需要带有低压高原的硬碳阳极.
目前的硬碳开发面临着缺陷和离子插入效率的挑战.

研究的目的:

开发一种新的硬碳阳极材料,以提高离子电池的性能.
研究一种新的拓图形化策略,用于增强离子插入.

主要方法:

利用生物质的玉米和一个两步的快速热化策略.
采用先进的表征技术,包括现场XRD,Raman和TEM.
研究了离子的拓插入机制.

主要成果:

合成了一个高度交叉连接的拓式石墨化碳与远程石墨烯纳米丝带和空洞.
实现了290mAh的低压平原容量,占总容量的97%.
证明了多方向的离子插入和减少缺陷.

结论:

拓式石墨化碳可以在低电压下有效地储存离子.
新型材料设计克服了硬碳阳极的关键限制.
这一进步对可持续的储能技术具有前景.

关键词:

硬碳是一种硬的碳.插入机制的插入机制离子电池离子电池拓式道工程拓式道工程

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