从使用过的离子电池中回收和功能化阳极石墨的机遇和挑战:一篇综述
Yang Gao1, Shaoyan Zhang1, Shuanglong Lin1
1Shijiazhuang Key Laboratory of Low Carbon Energy Materials, College of Chemical Engineering, Shijiazhuang University, Shijiazhuang, Hebei, 050035, China.
Environmental research
|January 19, 2024
概括
从离子电池 (LIB) 中回收使用的石墨提供了环境效益,并解决了材料短缺问题. 本研究审查了预处理,再生和功能化方法,以及关于可持续石墨回收的法规和未来前景.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 电化学 电化学 电化学
背景情况:
- 使用过的离子电池 (LIB) 由于存在危险元件,因此存在处置方面的挑战.
- 石墨,一个关键的LIB阳极材料,占电池质量的很大一部分 (12-21 wt %).
- 回收废旧石墨可以支持环境保护和国家"双碳"目标.
研究的目的:
- 提供从LIBs回收的废石墨回收的全面概述.
- 总结预处理,再生和功能化过程.
- 讨论技术标准,法规,挑战和未来前景.
主要方法:
- 关于石墨回收技术的文献综述 (酸浸,烧金,组合方法).
- 对改造和兴奋剂方法进行分析,以获得增强的电化学性能.
- 检查功能化战略的经济和环境可行性.
主要成果:
- 总结了预处理步骤:排放,粉碎和选.
- 审查了各种石墨回收和修改方法.
- 描述了用于LIB回收的技术标准和法规.
结论:
- 消耗石墨的回收对于可持续性和资源管理至关重要.
- 需要进一步的研究来应对技术挑战和优化流程.
- 可持续和高效的方法是释放再生石墨的潜力的关键.
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