Abstract：
Pretreatment, the initial step in recycling spent lithium-ion batteries (LIBs), efficiently separates cathode and anode materials to facilitate key element recovery. Despite brief introductions in existing research, a comprehensive evaluation and comparison of processing methods is lacking. This study reviews 346 references on LIBs recycling, analyzing pretreatment stages, treatment conditions, and method effects. Our analysis highlights insufficient attention to discharge voltage safety and environmental impact. Mechanical disassembly, while suitable for industrial production, overlooks electrolyte recovery and complicates LIBs separation. High temperature pyrolysis flotation offers efficient separation of mixed electrode materials, enhancing mineral recovery. We propose four primary pretreatment processes: discharge, electrolyte recovery, crushing and separation, and electrode material recovery, offering simplified, efficient, green, low-cost, and high-purity raw materials for subsequent recovery processes.
摘要：
预处理,回收废旧锂离子电池(LIB)的第一步，有效地分离阴极和阳极材料，以促进关键元素的回收。尽管在现有研究中进行了简短的介绍，缺乏对加工方法的综合评价和比较。本研究回顾了346篇关于LIBs回收的参考文献，分析预处理阶段，治疗条件,和方法效果。我们的分析强调了对放电电压安全和环境影响的关注不足。机械拆卸,虽然适合工业生产，忽略电解质的回收和复杂的LIB分离。高温热解浮选提供了混合电极材料的有效分离，提高矿物回收率。我们提出了四个主要的预处理过程：放电，电解质回收，破碎和分离，和电极材料回收，提供简化的，高效,绿色,低成本,和后续回收工艺的高纯度原料。
