有色金属科学与工程2026，Vol.17Issue(1)：1-8,8.DOI:10.13264/j.cnki.ysjskx.2026.01.001
LiNi0.8Co0.15Al0.05O2中金属回收过程的化学变化研究
Study on the chemical changes during the metal recovery process in LiNi0.8Co0.15Al0.05O2
摘要
Abstract
To promote the resource recovery and reuse of lithium,nickel,and cobalt from spent LiNi0.8Co0.15Al0.05O2,this study investigated how roasting temperature influences phase change and metal recovery when NaHSO4·H2O was used as a roasting additive.The results indicate that distinct chemical reactions occur at varying roasting temperatures.At relatively low roasting temperatures,LiNi0.8Co0.15Al0.05O2 cannot undergo complete chemical conversion.When the roasting temperature reaches 550℃,the roasting product consists of LiNaSO4,Na2Ni(SO4)2,Na2Co(SO4)2,Na6Ni(SO4)4,Na6Co(SO4)4,and NiCo2O4,indicating that Ni,Co,and Na are well dispersed in the calcined material.After roasting-water leaching treatment,the leaching ratio of LiNi0.8Co0.15Al0.05O2 increases with the increase of roasting temperature.At a roasting temperature of 550℃,the leaching ratio reaches 89.96%.关键词
报废锂离子动力电池/资源化利用/焙烧温度/金属回收Key words
spent lithium-ion power battery/resource reuse/roasting temperature/metal recycling分类
矿业与冶金引用本文复制引用
王大辉,郭永琪,陈怀敬,郑阳,徐晶..LiNi0.8Co0.15Al0.05O2中金属回收过程的化学变化研究[J].有色金属科学与工程,2026,17(1):1-8,8.基金项目
国家自然科学基金资助项目(51864032) （51864032）
沈阳材料科学国家(联合)实验室-有色金属加工与再利用国家重点实验室联合基金资助项目(18LHZD002) （联合）
