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Journal Articles Journal of Hazardous Materials Year : 2020

An original recycling method for Li-ion batteries through large scale production of Metal Organic Frameworks

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Abstract

A concept is proposed for the recycling of Li-ion batteries with an open-loop method that allows to reduce the volume of wastes and simultaneously to produce valuable materials in large amounts (Metal-Organic Frameworks, MOFs). After dissolution of Nickel, Manganese, Cobalt (NMC) batteries in acidic solution (HCl, HNO$_3$ or H$_2$SO$_4$ /H$_2$O$_2$), addition of organic moieties and a heat treatment, different MOFs are obtained. Solutions after precipitation are analyzed by inductively coupled plasma and materials are characterized by powder X-Ray diffraction, N 2 adsorption, thermogravimetric analysis and Scanning electron microscope. With the use of Benzene-Tri-Carboxylic Acid as ligand, it has been possible to form selectively a MOF, based on Al metallic nodes, called MIL-96 in the literature, and known for its interesting properties in gas storage applications. The supernatant is then used again to precipitate other metals as MOFs after addition of a second batch of ligands. These two other MOFs are based on Cu (known as HKUST-1 in the literature) or Ni-Mn (with a new crystalline structure) depending of conditions. This method shows promising results at the lab scale (15 g of wastes can be converted in 10 g of MOFs), and opens interesting perspectives for the scaled-up production of MOFs.
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Dates and versions

cea-02443518 , version 1 (17-01-2020)

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Marine Cognet, Julie Condomines, Julien Cambedouzou, Srinivasan Madhavi, Michaël Carboni, et al.. An original recycling method for Li-ion batteries through large scale production of Metal Organic Frameworks. Journal of Hazardous Materials, 2020, 385, pp.121603. ⟨10.1016/j.jhazmat.2019.121603⟩. ⟨cea-02443518⟩
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