徐州工程学院学报（自然科学版）2016，Vol.31Issue(1)：9-13,5.
以废旧钴酸锂电池为原料制备钴粉
A Novel Process of Cobalt Powder Preparation from Spent Lithium Ion Batteries
摘要
Abstract
An innovative process was proposed for the preparation of cobalt powders from spent lithi‐um ion batteries (LIBs) ,which includes pretreatment ,acid leaching ,preparation of cobalt powder proce‐dures .First ,cathode active materials obtained after pretreatment were leached with citric acid and hydrogen peroxide .T hen target product of cobalt pow ders can be obtained by hydrazine reduction of Co ions in the leaching solution .The optimal conditions for preparing cobalt powder were obtained by contrast experi‐ment .T he experiment results show that over 90 % cobalt can be recovered as cobalt pow ders under the op‐timal conditions of reaction temperature‐80 ℃ ,molar ratio of N2 H4/Co2+ -1∶2 .5 ,reaction time‐30 min and pH=12 .The obtained cobalt powders posses two mixed phase of hcp and ccp .The morphology of co‐balt pow ders obtained is spherical and the average particle size of obtained cobalt pow der is 0 .65 μm .关键词
废旧锂离子电池/钴粉/联氨还原/柠檬酸Key words
spent lithium ion batteries/cobalt powder/hydrazine reduction/citric acid分类
化学化工引用本文复制引用
周涛,范百林,徐莉萍,徐宝..以废旧钴酸锂电池为原料制备钴粉[J].徐州工程学院学报（自然科学版）,2016,31(1):9-13,5.基金项目
国家自然科学基金项目 （）
