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从使用过的离子电池中回收的石墨作为导电框架,直接应用于红色基阳极

Han Huang¹, Dong Xie¹, Zeqiang Zheng¹

¹Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China.

ACS applied materials & interfaces

|November 1, 2023

概括

从离子电池 (LIB) 中回收使用的石墨至关重要. 一种新的碳/红色复合体阳极材料提高了LIB性能,并为电池回收提供了可持续的解决方案.

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:

从离子电池 (LIB) 中回收使用的石墨对于环境保护和资源节约至关重要.
开发先进的阳极材料是提高LIB容量和性能的关键.

研究的目的:

开发一种具有成本效益的方法,用于从LIBs中回收使用的石墨.
创建一个新的碳/红色复合体阳极材料,以提高LIB性能.
为了评估再生石墨基阳极的电化学特性.

主要方法:

一个两步循环过程,包括热处理和溶液洗用于废旧石墨.
将回收石墨与红色合金磨,形成碳/红色合金复合物.
半细胞和全细胞LIB配置的制造和电化学测试.

主要成果:

碳/红色复合阳极表现出极好的循环稳定性 (721.7mAhg-1在0.2Ag-1的500个循环后).
观察到优越的速率能力,容量为276.2mAhg-1在3Ag-1时.
该复合材料在使用LiCoO₂阴极的全细胞配置中显示出稳定的性能.

结论:

开发的碳/红复合材料有效地利用回收石墨用于高性能LIB阳极.
复合物的结构,由碳封装的红色,增强了电化学性能.
本研究提出了一个有前途的,绿色的,潜在的商业化策略,用于LIB回收和先进的能源存储.

关键词:

球磨机球磨机球磨机它们是全细胞的.再循环石墨的使用方法红色是红色的.使用过的离子电池.

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