Recovery of Co and Li from spent lithium-ion batteries by combination method of acid leaching and chemical precipitation

被引：9

作者：

Zhu Shu-guang ^{[1
,2
]}

He Wen-zhi ^{[1
]}

Li Guang-ming ^{[1
]}

Zhou Xu ^{[1
]}

Zhang Xiao-jun ^{[1
]}

Huang Ju-wen ^{[1
]}

机构：

[1] Tongji Univ, Sch Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China

[2] Anhui Univ Architecture, Sch Environm & Energy Engn, Hefei 230022, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2012年 / 22卷 / 09期

基金：

中国国家自然科学基金;

关键词：

lithium-ion batteries; recovery; leaching; precipitation; METAL VALUES; HYDROMETALLURGICAL PROCESS; CATHODE MATERIALS; COBALT; SEPARATION; LICOO2; EXTRACTION; WASTE;

D O I：

10.1016/S1003-6326(11)61460-X

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Cathode material of spent lithium-ion batteries was refined to obtain high value-added cobalt and lithium products based on the chemical behaviors of metal in different oxidation states. The active substances separated from the cathode of spent lithium-ion batteries were dissolved in H2SO4 and H2O2 solution, and precipitated as CoC2O4 center dot 2H(2)O microparticles by addition of (NH4)(2)C2O4. After collection of the CoC2O4 center dot 2H(2)O product by filtration, the Li2CO3 precipitates were obtained by addition of Na2CO3 in the left filtrate. The experimental study shows that 96.3% of Co (mass fraction) and 87.5% of Li can be dissolved in the solution of 2 mol/L H2SO4 and 2.0% H2O2 (volume fraction), and 94.7% of Co and 71.0% of Li can be recovered respectively in the form of CoC2O4 center dot 2H(2)O and Li2CO3.

引用

页码：2274 / 2281

页数：8

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