Huijue energy storage carbon coated aluminum foil

Can graphene-modified al foils be used as current collectors?

This work develops a facile method to prepare graphene-modified Al foils, which acts as the novel current collectors with lighter and thinner coatings for higher performances and safe LIBs, as well as other energy-storage devices.

Does graphene protect al foil from corrosion by electrolyte?

Graphene protects Al foil from corrosion by electrolyte during long-term cycling. Carbon black addition compensates low interlayer conductivity of graphene. Electrical contact between active material and current collector is strengthened. Charge transport between active material and current collector is improved.

Can graphene nanosheets reduce aluminum foil corrosion?

This work reveals the coatings of graphene nanosheets not only can increase the contact area and enhance the adhesion between electrode materials and current collectors, which is beneficial for their electrical contact and charge transport, but also can suppress the aluminum foil corrosion during long-term cycling.

Do graphene nanosheets protect current collectors from corrosion?

Meanwhile, scanning electron microscope (SEM) shows the surfaces of current collectors with graphene coverage more intact and less corrosion than that of bare Al after 500 cycles, revealing the graphene nanosheets play an important role in protecting the Al from corrosion in the long-term cycling [19 ].