Pre-concentration of graphite and LiCoO2 in spent lithium-ion batteries using enhanced gravity concentrator

• Autorzy: Zhu X,-N. , Tao Y.-J. , He Y.-Q. , Zhang Y. , Sun Q.-X.

Identyfikatory

DOI

10.5277/ppmp1817

• Języki publikacji: EN

Abstrakty

EN

The pre-concentration of electrode material of spent lithium-ion battery has great significance on the resource utilization and environmental protection. The feasibility of separation of graphite and LiCoO2 based on density difference using the enhanced gravity concentrator was verified in this paper. Combustion characteristics of LiCoO2 and graphite were used to propose a simple evaluation index of separation efficiency. Separation tests were carried out to specify the influence of operating parameters on the separation efficiency. Moreover, the effect of particle size on the separation performance was studied. Combustion characteristics results showed that mass loss of graphite was much greater than that of LiCoO2. Thus, mass loss were used to evaluate the purity of product. Effective separation of graphite and LiCoO2 was achieved by the enhanced centrifugal separator. Separation results showed that increasing centrifugal force decreased the overflow yield and increased the graphite content of the overflow stream. In addition, yield of overflow grew an increase in fluidization water pressure, while the purity of graphite in overflow decreased. The effect of particle size on the separation efficiency was also significant, the separation efficiency decreased with the decreasing of particle size.

Słowa kluczowe

EN

spent lithium-ion batteries; electrode material; resource utilization; pre-concentration; enhanced gravity concentrator

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2018
• Tom: Vol. 54, iss. 2
• Strony: 293--299
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Zhu X,-N.

• Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, China
• College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China

autor

Tao Y.-J.

• Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, China

autor

He Y.-Q.

• Advanced Analysis and Computation Center, China University of Mining and Technology, Xuzhou 221116, China

autor

Zhang Y.

• Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, China

autor

Sun Q.-X.

• Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, China

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).