标题: Pre-extraction of Li from spent lithium-ion batteries through an Ethanol-Water vapor thermal reduction approach

作者: Qu, X (Qu, Xin); Zhou, FY (Zhou, Fengyin); Wang, DF (Wang, Danfeng); Cai, YQ (Cai, Yuqi); Zhao, JJ (Zhao, JingJing); Ma, JY (Ma, Jianye); Gao, SB (Gao, Shuaibo); Wang, DH (Wang, Dihua); Yin, HY (Yin, Huayi)

来源出版物: CHEMICAL ENGINEERING JOURNAL  卷: 482  文献号: 148608  DOI: 10.1016/j.cej.2024.148608  Published Date: 2024 FEB 15  

摘要: Pre-extraction of lithium from spent lithium-ion batteries (LIBs) is highly required to obtain a high recovery rate of lithium. Here, we report an ethanol-water vapor thermal reduction approach in a sealed reactor to selectively recycle lithium and transition metal oxides (TMOs) from spent LIBs. Spent cathode materials were converted to LiOH and TMO by the reduction of water-alcohol vapor at a temperature of 350-400 degrees C. More than 99 % of the Li in LiCoO2 was selectively extracted from LiCoO2 at 370 degrees C for 2 h and at 400 degrees C for 0.8 h. The selective extraction is co-driven by water and alcohol that enable the reduction of LiCoO2 and release water-soluble LiOH and water-insoluble TMOs. In addition, the water-vapor thermal reduction method is applicable to selectively recovery Li from different types of cathode materials such as NCMs and lithium manganese oxide. The pre-selective extraction ensures a high lithium recovery rate and a reagent-saving manner. We envision that the vapor thermal recovery method could help recycle spent LIBs by an environmentally friendly and economically reasonable way.

作者关键词: Thermodynamics; Ethanol vapor thermal reduction; Pre-extraction; spent LTMO batteries; Recycling

地址: [Qu, Xin; Zhou, Fengyin; Wang, Danfeng; Cai, Yuqi; Zhao, JingJing; Gao, Shuaibo; Wang, Dihua; Yin, Huayi] Wuhan Univ, Sch Resource & Environm Sci, 299 Bayi Rd, Wuhan 430072, Peoples R China.

[Qu, Xin; Gao, Shuaibo; Wang, Dihua; Yin, Huayi] Wuhan Univ, Hubei Int Sci & Technol Cooperat Base Sustainable, Wuhan 430072, Peoples R China.

[Wang, Dihua; Yin, Huayi] Joint Ctr Green Mfg Energy Storage Mat Wuhan Univ, Wuhan 430072, Peoples R China.

[Ma, Jianye] Zhekuang Heavy Ind Co Ltd, Heping Town Ind Pk, Changxing Cty 313100, Zhejiang, Peoples R China.

通讯作者地址: Yin, HY (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, 299 Bayi Rd, Wuhan 430072, Peoples R China.

电子邮件地址: yinhuayi@whu.edu.cn

影响因子：15.1