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郑茹娟,刘元龙,马全新,穆德颖,李如宏,戴长松.废旧锂离子电池中Li, Fe和V的回收及xLiFePO4-yLi3V2(PO4)3的制备[J].稀有金属材料与工程(英文),2018,47(1):344~350.[Zheng Rujuan,Liu Yuan Long,Ma Quanxin,Mu Deying,Li Ruhong and 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.]
Recovery of Li, Fe and V From Spent Lithium Ion Batteries andPreparation of xLiFePO4 -yLi3V2(PO4)3
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Received:April 11, 2016  Revised:May 24, 2016
DOI:
Key words: Spent lithium-ion batteries  LiFePO4  Li3V2(PO4)3  xLiFePO4-yLi3V2(PO4)3  Recycling
Foundation item:国家自然科学基金资助(项目号51274075);国家环保公益性行业科研专项(项目号201009028);
Author NameAffiliation
Zheng Rujuan,Liu Yuan Long,Ma Quanxin,Mu Deying,Li Ruhong and Dai Changsong  
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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.