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Recovery of Li, Fe and V From Spent Lithium Ion Batteries andPreparation of xLiFePO4 -yLi3V2(PO4)3
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    Abstract:

    Li, Fe and V were reclaimed together and preparedSto xLiFePO4-yLi3V2(PO4)3 materials from spent LiFePO4 and Li3V2(PO4)3 LIBs, for the reason that they have similar characteristics and preparation method. The spent battery materials were roasted under 600 oC for 1 hour in air atmosphere to remove the PVDF binder, then the active materials and aluminum foil collector can be separated effectively. The different proportion of xLiFePO4-yLi3V2(PO4)3(x:y=5:1,7:1,9:1) materials were prepared by roasted products through adjusting the mole ratio of Li, Fe, V and P , ball milling and calcining. The morphology, structure and electrochemical of composite material were performed. The results show that the composite material have the electrochemical properties of LiFePO4 and Li3V2(PO4)3 simultaneously, which can significantly improve the LiFePO4 ratio performance. This dissertation explores a new way for the recycling of spent LIBs. The study is of good application foreground. It is very important for environmental protection, and is believed to bring both economic and social benefits to us.

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[Zheng Rujuan, Liu Yuan Long, Ma Quanxin, Mu Deying, Li Ruhong, Dai Changsong. Recovery of Li, Fe and V From Spent Lithium Ion Batteries andPreparation of xLiFePO4 -yLi3V2(PO4)3 [J]. Rare Metal Materials and Engineering,2018,47(1):344~350.]
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History
  • Received:April 11,2016
  • Revised:May 24,2016
  • Adopted:June 12,2016
  • Online: February 07,2018
  • Published: