CPC H01M 10/54 (2013.01) [H01M 4/133 (2013.01); H01M 4/583 (2013.01); H01M 4/623 (2013.01); H01M 4/662 (2013.01); H01M 10/0525 (2013.01)] | 12 Claims |
1. A method of recycling lithium-ion battery anodes, said method comprising:
isolating an anode scrap, the anode scrap comprising a graphite anode film adhered to a current collector foil with a polyvinylidene fluoride (PVDF) binder;
combining deionized water with the anode scrap to form a first mixture;
delaminating the graphite anode film from the current collector foil to form a second mixture comprising a free collector foil and a free graphite anode film;
filtering and drying the free graphite anode film from the second mixture to recover the free graphite anode film;
combining the free graphite anode film with a solvent comprising N-methyl-2-pyrrolidone (NMP) to form an anode formation slurry; and
wherein combining the deionized water with the anode scrap occurs before delaminating the graphite anode film from the current collector foil.
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