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投稿时间:2019-11-27 修订日期:2019-11-29 录用日期:2019-12-03 网络发布日期:2020-04-18
投稿时间:2019-11-27 修订日期:2019-11-29 录用日期:2019-12-03 网络发布日期:2020-04-18
中文摘要: 针对废旧钴酸锂电池正极极片中钴的回收,以破碎后的LiCoO2正极材料为原料,对比研究了LiCoO2在H2SO4和H2SO4+H2O2两种条件下钴的浸出效果。结果表明:正极极片粉中LiCoO2在H2SO4+H2O2作用下的还原浸出效果优于单独H2SO4浸出。在H2O2还原浸出条件下,在反应温度80 ℃、液固比6、初始硫酸浓度250 g/L、双氧水加入量3%、反应120min的条件下,钴浸出率能达到95%以上。SEM分析显示,不规则多边形状的LiCoO2物象消失,表明LiCoO2已完全分解。
Abstract:In view of recovery of Co in anode plate of waste LiCoO2 battery, leaching of LiCoO2 under the conditions of H2SO4 and H2SO4+H2O2 was studied with crushed LiCoO2 anode material as raw material. The results show that leaching of LiCoO2 with H2SO4+H2O2 is better than that of H2SO4 alone. Under the condition of H2O2 reduction leaching, leaching rate of Co is 95% above under the conditions including reaction temperature of 80 ℃, L/S=6, initial sulfuric acid concentration of 250 g/L, dosage of hydrogen peroxide of 3%, and reaction time of 120 min. SEM analysis results show that LiCoO2 has been completely decomposed.
keywords: lithium battery LiCoO2 cathode leaching
文章编号: 中图分类号: 文献标志码:
基金项目:国家重点研发计划项目(2018YFC1901803)
| 作者 | 单位 | |
| 巩勤学 | 湖南邦普循环科技有限公司 | 18390553547@sina.cn |
| 刘勇奇 | 湖南邦普循环科技有限公司 | |
| 王杜 | 湖南邦普循环科技有限公司 | |
| 郑宇* | 湖南邦普循环科技有限公司 | 18390553547@sina.cn |
| Author Name | Affiliation | |
| gong qinxue | Hunan Brunp Recycling Technology Co. , Ltd. | 18390553547@sina.cn |
| liu yongqi | ||
| wang du | ||
| zheng yu | 18390553547@sina.cn |
引用文本:
巩勤学,刘勇奇,王杜,郑宇.废旧锂电池正极极片粉中钴的浸出[J].有色金属(冶炼部分),2020(5):26-30.
gong qinxue,liu yongqi,wang du,zheng yu.Leaching of Cobalt from Anode Powder of Waste Lithium Battery[J].Nonferrous Metals (Extractive Metallurgy),2020(5):26-30.
巩勤学,刘勇奇,王杜,郑宇.废旧锂电池正极极片粉中钴的浸出[J].有色金属(冶炼部分),2020(5):26-30.
gong qinxue,liu yongqi,wang du,zheng yu.Leaching of Cobalt from Anode Powder of Waste Lithium Battery[J].Nonferrous Metals (Extractive Metallurgy),2020(5):26-30.

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