Lithium-Ion Battery Recycling?Influence of Recycling Processes on Component Liberation and Flotation Separation Efficiency
نویسندگان
چکیده
Recycling is a potential solution to narrow the gap between supply and demand of raw materials for lithium-ion batteries (LIBs). However, efficient separation active components their recovery from battery waste remains challenge. This paper evaluates influence three routes liberation LIB (namely mechanical, thermomechanical, electrohydraulic fragmentation) on lithium metal oxides (LMOs) spheroidized graphite particles using froth flotation. The products were characterized SEM-based automated image analysis. It was found that mechanical process enabled delamination foils, which remained intact at coarser sizes along with casing separator. binder preservation hinders material liberation, as indicated by aggregation. fragmentation route resulted in liberated minor impact morphology. coarse fractions thus produced consist electrode casing, Notwithstanding, it has disadvantage forming heterogeneous agglomerates containing particles. attributed dissolution anode its rehardening after drying, capturing previously Finally, thermomechanical showed preferential individual considered preferred upstream thermal treatment oxidized Al rendering them brittle resulting distribution all size fractions. Among three, black mass highest flotation selectivity due removal binder, product 94.4% overflow 89.4% LMOs underflow product.
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ژورنال
عنوان ژورنال: ACS ES&T engineering
سال: 2022
ISSN: ['2690-0645']
DOI: https://doi.org/10.1021/acsestengg.2c00177