US 12,431,300 B2
Flexible energy storage device with redox-active biopolymer organogel electrolyte
Emre Cevik, Dammam (SA); Sarah Mousa Maadi Asiri, Dammam (SA); and Ayhan Bozkurt, Dammam (SA)
Assigned to Imam Abdulrahman Bin Faisal University, Dammam (SA)
Filed by Imam Abdulrahman Bin Faisal University, Dammam (SA)
Filed on Sep. 9, 2022, as Appl. No. 17/941,750.
Prior Publication US 2024/0087819 A1, Mar. 14, 2024
Int. Cl. H01G 11/02 (2013.01); H01G 11/04 (2013.01); H01G 11/34 (2013.01); H01G 11/56 (2013.01)
CPC H01G 11/02 (2013.01) [H01G 11/04 (2013.01); H01G 11/34 (2013.01); H01G 11/56 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A flexible energy storage device, comprising:
a pair of electrodes separated by a redox-active biopolymer organogel electrolyte, the redox-active biopolymer organogel electrolyte comprising:
a biopolymer organogel comprising a biopolymer gelator and a gel solvent;
redox-active molybdenum-containing ions; and
a secondary ionic substance which is at least one selected from the group consisting of a lithium salt and a sodium salt,
wherein the flexible energy storage device retains greater than 75% of an unbent energy storage capacity when bent at an angle of 10 to 170°,
wherein the biopolymer gelator is agarose,
wherein the biopolymer gelator is present in the biopolymer organogel in an amount of 7.5 to 40 wt. %, based on a total weight of biopolymer organogel,
wherein the gel solvent is glycerol,
wherein the redox-active molybdenum-containing ions are molybdate anions,
wherein the redox-active molybdenum-containing ions are present in an amount of 0.1 to 15.0 wt. %, based on a total weight of the redox-active biopolymer organogel electrolyte, and
wherein the secondary ionic substance is present in an amount of 1.0 to 20.0 wt. %, based on a total weight of redox-active biopolymer organogel electrolyte.