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第四届电子封装国际研讨会

作者： Hansjrg Griese Jutta Mller Karl-Heinz Zuber Herbert reichl fraunhofer-institut fr zuverlssigkeit und mikrointegration izm Berlin/Germany(Fraunhofer Institute for Reliability and Microintegration) Technical University of Berlin/Germany

＜正＞Trends of growing consumption,decreasing product lifetime and new application fields in nearly all leading industry segments lead to an enormous increase of product numbers in electronics *** production,use as well as the end of life treatment of these products cause considerable environmental *** prevent damages of human health and the environment,a sustainable economic growth has to be realized and new products and process technologies should proof that they contribute to the solution of globai environmental *** this paper two new results in the field of board interconnection technology show how to do it.

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Closed-loop hydrometallurgical treatment of end-of-life lithium ion batteries: Towards zero-waste process and metal recycling in advanced batteries

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Journal of Energy Chemistry 2019年第8期28卷 220-227,I0008页

作者： Thomas Abo Atia Giuseppe Elia robert Hahn Pietro Altimari francesca Pagnanelli Department of Chemistry Sapienza University of RomeRome 00185 Italy Waste recycling Technologies Flemish Institute for Technological ResearchMol 2400 Belgium Technische Universitat Berlin Research Center of Microperipheric TechnologiesBerlin D-13355 Germany fraunhofer-institut für zuverlassigkeit und mikrointegration Berlin D-13355 Germany

This work presents an enhanced hydrometallurgical process for recycling lithium ion batteries. first, endof-life batteries were processed in a physical pre-treatment plant to obtain a representative electrode material. The resulting leachate was purified forth by iron-precipitation, liquid–liquid extractions, and an innovative Li–Na separation, in order to obtain valuable products. These products include high-grade graphite, cobalt oxide(Co3O4, purity 83%), cobalt oxalate(CoC2O4, purity 96%), nickel oxide(Ni O, purity89%), and lithium carbonate(Li2CO3, purity 99.8%). The recovery rate was quantitative for graphite, between 80% and 85% for cobalt depending on the nature of the recovery method, 90% for nickel, and 72%for lithium. Secondary streams were also valorized to obtain sodium sulfate(Na2SO4, purity 96%), and MnCofe2O4 magnetic nano-sorbents according to the zero-waste concept. In order to close the loop, recycled Co3O4 and NiO were used as conversion-type anode materials for advanced lithium ion batteries showing promising performances.

关键词： LIB recycling Graphite Cobalt Nickel Lithium Advanced LIB

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