流体机械2024，Vol.52Issue(12)：2-7,30,7.DOI:10.3969/j.issn.1005-0329.2024.12.001
基于磨料水射流车载动力锂电池切割的试验研究
Study on abrasive waterjet cutting of vehicle power lithium batteries
摘要
Abstract
To address the issues of high risk,long processing time,and environmental pollution associated with traditional battery decomposition methods,it was proposed to apply abrasive waterjet cutting to disassembly of vehicle power lithium batteries.Experimental research for feasibility was conducted on cutting lithium iron phosphate batteries with abrasive waterjet to explore the cutting speed at different battery locations,and the voltage change of the battery before and after abrasive waterjet cutting;Material loss and pollutants generated during cutting were analyzed.The experiments show that the abrasive waterjet can safely and efficiently cut through the battery casing,connectors,cells,positive and negative electrode materials,and separators under pressure;The cutting speed varies between 4 and 16 mm/min depending on the position of the battery;When the lithium iron phosphate battery cells are cut,electrolyte flows out,which can react with water to produce a small amount of corrosive liquid;After waterjet cutting,the voltage of single cells decreases,but it does not affect the cascade utilization of cells and the recovery of rare metals.This study demonstrates the feasibility of abrasive waterjet cutting for lithium batteries,provides alternative solutions for potential battery disassembly methods,and offers theoretical guidance for promoting and improving the recycling and circular utilization system of power batteries.关键词
磨料水射流/锂电池/回收/新能源/切割Key words
abrasive waterjet/lithium batteries/recycling/new energy/cutting分类
机械制造引用本文复制引用
李敬彬,李文彬,李帅霖,李根生,黄中伟,李欢,周博文..基于磨料水射流车载动力锂电池切割的试验研究[J].流体机械,2024,52(12):2-7,30,7.基金项目
国家自然科学基金创新研究群体项目(52421002) （52421002）
国家自然科学基金项目(52442404) （52442404）
