An original recycling method for Li-ion batteries through large scale production of Metal Organic Frameworks
[Display omitted] •An open-loop recycling process of Li-Ion batteries is proposed.•High valuable materials from real battery waste are obtained.•These materials are known for their high ability in gas storage (metal-organic framework).•These materials can be obtained in large scale. A concept is pro...
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Veröffentlicht in: | Journal of hazardous materials 2020-03, Vol.385, p.121603-121603, Article 121603 |
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Format: | Artikel |
Sprache: | eng |
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•An open-loop recycling process of Li-Ion batteries is proposed.•High valuable materials from real battery waste are obtained.•These materials are known for their high ability in gas storage (metal-organic framework).•These materials can be obtained in large scale.
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, HNO3 or H2SO4/H2O2), 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, N2 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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ISSN: | 0304-3894 1873-3336 |
DOI: | 10.1016/j.jhazmat.2019.121603 |