2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/204072A class of dynamical dark energy models, dubbed Spinor Quintom, can be constructed by a spinor field $ψ$ with a nontraditional potential. We find that, if choosing suitable potential, this model is able to allow the equation-of-state to cross the cosmological constant boundary without introducing any ghost fields. In a further investigation, we show that this model is able to mimic a perfect fluid of Chaplygin gas with $p=-c/ρ$ during the evolution, and also realizes the Quintom scenario with its equation-of-state across -1.20 pages, 5 figures, accepted by CQG, several references addedHigh Energy Physics - TheoryAstrophysicsGeneral Relativity and Quantum CosmologyHigh Energy Physics - Phenomenologytext