Proton-battery based on graphene derivatives
View Patent ↗An apparatus comprises an anode formed of graphene oxide from an acidic pH; a cathode from a pH greater than the acidic pH of the anode; and charge collectors deposited on the anode and the cathode. The anode comprises graphene oxide, the graphene oxide comprising an ink and having a pH of about 1 to about 4.
1. An apparatus, comprising:
an anode formed of graphene oxide from an acidic pH;
a cathode from a pH greater than the acidic pH of the anode; and
charge collectors deposited on the anode and the cathode;
wherein the anode comprises graphene oxide, the graphene oxide comprising an ink and having a pH of about 1 to about 4;
wherein a difference between the acidic pH of the graphene oxide and a higher pH dissociates protons coupled to the graphene oxide to cause the protons to migrate from the graphene oxide of the anode to the cathode to regenerate the apparatus;
wherein the cathode is formed of graphene oxide from inks and has a pH of about 13 to about 14.
2. The apparatus of claim 1 , wherein an electrolyte comprising a synthetic ionomer is positioned between and in contact with each of the anode and the cathode.
3. The apparatus of claim 2 , wherein the synthetic ionomer comprises sulfonated tetrafluoroethylene-based fluoropolymer-copolymer.
4. The apparatus of claim 1 , wherein the charge collectors comprise one or more of Au, Cr, Ag, Al, Cu, and indium tin oxide.
5. The apparatus of claim 1 , wherein the charge collector deposited on the anode comprises Au, the cathode comprises graphene oxide, the charge collector deposited on the cathode comprises Au, and an electrolyte has a relative humidity of about 15%.