铁酸盐 (LFP) 电池的材料度的机械方法和产品回收的潜在评估
Priscila Silva Silveira Camargo1, Gabriel Gomes Osório Torres2, João Antônio Scherer Pacheco2
1Laboratório de Corrosão, Proteção e Reciclagem de Materiais (LACOR), Departamento de Engenharia de Materiais, Escola de Engenharia, Universidade Federal do Rio Grande do Sul (UFRGS) - Av. Bento Gonçalves, Setor 4, Prédio 43426, 91509-900 - Porto Alegre, 9500, Rio Grande do Sul, Brasil. priscila.silveira@ufrgs.br.
Environmental science and pollution research international
|August 29, 2024
概括
开发有效的离子电池 (LIB) 回收方法至关重要. 这项研究发现,使用子磨坊的单阶段机械工艺有效地将铁,铜和等有价值的材料从LiFePO4细胞中分离出来.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 可持续技术 可持续技术
背景情况:
- 离子电池 (LIB) 生产的快速扩张对关键原材料消耗产生了重大影响,需要改进的回收方法.
- 实现国家回收目标和确保关键原材料的稳定供应取决于高效的LIB回收过程.
研究的目的:
- 评估和比较两种不同的机械路径,用于从LiFePO4 (LPF) 细胞中缩材料.
- 评估通过最有效的机械途径回收材料的经济,环境和稀缺性风险潜力.
主要方法:
- 两个机械加工路线进行了比较:路线1 (6个研磨周期,3个颗粒大小分数) 和路线2 (1个研磨周期,6个颗粒大小分数).
- 在路线2内,测试了刀和子磨坊,随后进行了颗粒大小分离.
- 最有效的航线经过了经济,环境和稀缺性风险潜在评估.
主要成果:
- 路线2表现出卓越的性能,产生富含铁,/铜和正极材料 (LiFePO4) 的微分.
- 与路线1相比,路线2的运行时间和能源消耗较少.
- 子磨坊在分离铁和LiFePO4方面表现出色,而刀磨坊在和铜度方面更有效.
结论:
- 根据经济和环境评估,最佳的机械路线优先考虑的分数<0.5毫米 () 和2-9.5毫米 (铜和).
- 由于与回收相关的高稀缺性风险,回收<0.5毫米的部分至关重要.
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