Patent ID: 11894785
Assignee: ZHEJIANG UNIVERSITY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 2:
3. A preparation method of the integrated flexible self-charging power supply for the energy harvesting in the agricultural environment according to claim 1, comprising the following steps:
(1) generating a patterned graphene electrode by laser induction on a surface of a polyimide (PI) film, wherein the patterned graphene electrode comprises a first power generation portion and a second interdigital portion;
(2) pouring a PDMS mixed solution on the surface of the PI film on a side where the patterned graphene electrode is located, wherein the solution at least covers the patterned graphene electrode; then removing air bubbles by vacuum treatment, and curing PDMS by heating to obtain cured PDMS;
(3) removing the PI film from a surface of the cured PDMS to separate the patterned graphene electrode from the surface of the PI film, so as to obtain a flexible laser-induced graphene electrode;
(4) electrically connecting a second power generation portion and a second interdigital portion of the flexible laser-induced graphene electrode by a bridge rectifier and a copper wire;
(5) covering the second interdigital portion with the solid electrolyte to combine the second interdigital portion with the solid electrolyte to form a supercapacitor; and
(6) leading out two ends of the second interdigital portion and connecting the wires, pouring the PDMS mixed solution on a surface of the flexible laser-induced graphene electrode on a side where the graphene electrode is located, removing the air bubbles by the vacuum treatment, and curing to finally obtain the integrated flexible self-charging power supply.