从已耗尽的LIB转换为Co3O电极材料,用于超级电容器
Tang Ping1, Chen Li1, Yu Yezhe1
1School of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, People's Republic of China.
Environmental technology
|July 13, 2024
概括
从使用过的离子电池 (LIB) 中回收,可以为超级电容器提供有价值的Co3O4材料. 优化在300°C,这些材料提供良好的性能和可回收性.
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
- 回收和可持续性的回收.
背景情况:
- 使用过的离子电池 (LIB) 含有宝贵的金属,如,如果处理不当,会给环境带来风险.
- 来自LIBs的资源浪费需要有效的回收方法来回收有价值的组件.
- 开发可持续的回收LIB的方法对于资源管理和环境保护至关重要.
研究的目的:
- 调查使用过的LIBs的氧化物 (Co3O4) 材料的制备.
- 分析在不同热温度下合成的Co3O4的结构和形态特性.
- 为了评估合成的Co3O4作为超级电容器电极材料的电化学性能.
主要方法:
- 均的沉方法使用从浸出的消耗LIBs阴极材料中的源.
- 沉材料在不同的温度下进行热处理 (制).
- 结晶结构,形态和特定表面积的表征 (例如,在300°C).
- 电化学性能测试,包括特定电容和周期保留.
主要成果:
- 低温回火促进了Co3O4材料中的粒度提炼.
- 在300°C合成的Co3O4具有带有孔隙的棒状结构,特定表面积为58.98 m2g-1.1.
- 在300°C准备的Co3O4材料表现出最佳的电化学性能:97.93 F g-1特定电容和500个循环后79.12%的保留率.
结论:
- 从已使用的LIBs阴极材料回收来生产Co3O4是可行的.
- 合成的Co3O4是超级电容器的可行的电极材料.
- 本研究提出了LIB回收和材料利用的可持续方法.
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