废旧手机电池回收制备LiCoO_2电极材料

Preparation LiCoO_2 Eletrode Materials from Spent Li-ion Battery Recycling

首次提出采用混合溶剂（N－甲基吡咯烷酮（NMP）和N，N－二甲基甲酰胺（DMF）（1：1）]回收废旧手机电池，制备LiCoO2电极材料的方法。结果表明：用有机混合溶剂较采用单一有机溶剂NMP或DMF的提取效率好。提取效率提高13．2％～21．1％。在上述混合溶剂中100℃浸提1 h，盐酸80℃浸取1 h，氢氧化钠溶液沉淀，沉淀物经马福炉高温（700℃）煅烧7 h即可制得具有较好电化学性能的LiCoO2，可用作手机电池的主要正极材料。

A method for preparation of LiCoO2 eletrode materials from spent Li-ion battery recycling by mixed organic solvent NMP and DMF（1：1） was first developed.The experiment result reflected it was a technique for recycling and re-synthesis of LiCoO2 eletrode materials from spent Li-ion battery.With the suitable conditions were （1：1） mixed organic solvent NMP and DMF.Extraction 100 ℃1 h, calcination 700 ℃7 h and it increased extraction rate 13.2%~21.1%with mixed organic solvent.