CAS OpenIR
Leaching performance of Al-bearing spent LiFePO4 cathode powder in H2SO4 aqueous solution
Lou, Wen-bo1,2; Zhang, Yang2; Zhang, Ying2; Zheng, Shi-li2; Sun, Pei3; Wang, Xiao-jian2; Li, Jian-zhong1; Qiao, Shan2; Zhang, Yi2; Wenzel, Marco4; Weigand, Jan J.4
2021-03-01
Source PublicationTRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN1003-6326
Volume31Issue:3Pages:817-831
AbstractThe leaching performance and leaching kinetics of LiFePO4 (LFP) and Al in Al-bearing spent LFP cathode powder were systematically studied. The effects of temperature (273-368 K), stirring speed (200-950 r/min), reaction time (0-240 min), acid-to-material ratio (0.1:1-1:1 mL/g) and liquid-to-solid ratio (3:1-9:1 mL/g) on the leaching process were investigated. The results show that the concentration of reactants and the temperature have a greater impact on the leaching of Al. Under the optimal conditions, leaching efficiencies of LFP and Al are 91.53% and 15.98%, respectively. The kinetic study shows that the leaching of LFP is kinetically controlled by mixed surface reaction and diffusion, with an activation energy of 22.990 kJ/mol; whereas the leaching of Al is only controlled by surface chemical reaction, with an activation energy of 46.581 kJ/mol. A low leaching temperature can effectively suppress the dissolving of Al during the acid leaching of the spent LFP cathode material.
KeywordLiFePO4 aluminum leaching performance leaching kinetics
DOI10.1016/S1003-6326(21)65541-3
Language英语
Funding ProjectKey Deployment Projects of Chinese Academy of Sciences[ZDRW_CN_2020-1] ; Sino-German Cooperation Research Project under the Natural Science Foundation of China[51761135108] ; German Research Foundation[392417756] ; CAS Interdisciplinary Innovation Team
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
Funding OrganizationKey Deployment Projects of Chinese Academy of Sciences ; Sino-German Cooperation Research Project under the Natural Science Foundation of China ; German Research Foundation ; CAS Interdisciplinary Innovation Team
WOS IDWOS:000631677900023
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/47962
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Ying; Zheng, Shi-li
Affiliation1.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Univ Utah, Mat Sci & Engn, Salt Lake City, UT 84112 USA
4.Tech Univ Dresden, Fac Chem & Food Chem, D-01062 Dresden, Germany
Recommended Citation
GB/T 7714
Lou, Wen-bo,Zhang, Yang,Zhang, Ying,et al. Leaching performance of Al-bearing spent LiFePO4 cathode powder in H2SO4 aqueous solution[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2021,31(3):817-831.
APA Lou, Wen-bo.,Zhang, Yang.,Zhang, Ying.,Zheng, Shi-li.,Sun, Pei.,...&Weigand, Jan J..(2021).Leaching performance of Al-bearing spent LiFePO4 cathode powder in H2SO4 aqueous solution.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,31(3),817-831.
MLA Lou, Wen-bo,et al."Leaching performance of Al-bearing spent LiFePO4 cathode powder in H2SO4 aqueous solution".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 31.3(2021):817-831.
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