Electrical steel sheet adhesive coating composition, electrical steel sheet product, and manufacturing method therefor

An electrical steel sheet laminate comprising:

• a plurality of electrical steel sheets;
• and
• a thermal fusion layer provided between the plurality of electrical steel sheets,
• wherein the thermal fusion layer includes:
• 10 to 50 wt % of a resin with a side chain including an aromatic hydrocarbon,
• 5 to 40 wt % of an organic/inorganic composite with inorganic nanoparticles substituted to the resin,
• 10 to 30 wt % of a composite metal phosphate including at least one of a first aluminum phosphate (Al(H2PO4)3), a first cobalt phosphate (Co(H2PO4)2), a first calcium phosphate (Ca(H2PO4)2), a first zinc phosphate (Zn(H2PO4)2), and a first magnesium phosphate (Mg(H2PO4)2),
• 5 to 50 wt % of a phosphoric acid, and
• 1 to 15 wt % of a cohesion reinforcing agent including at least one of an oxide, carbon nanotubes (CNT), carbon black, a pigment, and a coupling agent.