ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,424,394, issued on Sept. 23, was assigned to Imam Abdulrahman Bin Faisal University (Dammam, Saudi Arabia).
"Hydrogel electrolyte for a supercapacitor" was invented by Emre Cevik (Dammam, Saudi Arabia) and Ayhan Bozkurt (Dammam, Saudi Arabia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hydrogel electrolyte for a supercapacitor includes sodium carboxymethyl cellulose (C), water, citric acid (CA); and an aqueous extract of Hibiscus sabdariffa. The sodium carboxymethyl cellulose (C) and the citric acid (CA) form a citric acid cross-linked cellulose-based polymer hydrogel (C-CA-C). An organic acid from the aqueous extract of Hibiscus sabdariffa is inte...