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用于和离子电池的化石墨球的单一来源形成和评估

Cassius Clark^1,2, Christopher A O'Keefe^1,3, Dominic S Wright^1,3

¹Yusuf Hamied Department of Chemistry Lensfield Road Cambridge CB2 1EW UK cpg27@cam.ac.uk.

|May 30, 2023

概括

优化氧化石墨球 (NDGS) 制造的回火时间至关重要. 最佳的6-12小时回火产生了高表面含量,提高了离子电池的性能.

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
纳米技术纳米技术

背景情况:

用添加的石墨球 (NDGS) 是储能有前途的材料.
制造方法需要优化以控制兴奋剂水平.

研究的目的:

为了优化NDGS制造的回火时间.
为了研究火时间对兴奋剂和电化学性能的影响.

主要方法:

在800°C的功能化芳香前体中制造NDGS.
使用技术来确定含量和表面化学的NDGS的分析.
作为离子和离子电池中阳极的NDGS的电化学测试.

主要成果:

对于最大表面兴奋剂 (C3N表面,C9N散装) 确定了6-12小时的最佳回火时间.
实现了9%的稳定散装兴奋剂.
在离子电池中,NDGS显示出高容量 (265 mA h g-1 at C/20) 的离子电池.
在没有diglyme的离子电池中性能有限.

结论:

化时间在NDGS中显著影响兴奋剂.
的扩散和气体的再吸收影响了兴奋剂水平.
NDGS显示出作为离子电池阳极的潜力,但需要进一步修改用于离子应用.

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