公开(公告)号：US11942272B2

公开(公告)日：2024-03-26

申请号：US16759329

申请日：2018-07-04

Applicant: SOOCHOW UNIVERSITY

Inventor： Aijuan Gu ,  Hao Fang ,  Guozheng Liang ,  Li Yuan

IPC: H01G11/86 ,  C08J5/04 ,  C08J5/06 ,  C08L29/04 ,  H01G11/26 ,  H01G11/36

CPC classification number: H01G11/86 ,  C08J5/046 ,  C08J5/06 ,  C08L29/04 ,  H01G11/26 ,  H01G11/36 ,  C08J2329/04 ,  C08J2477/06 ,  C08L2205/035 ,  C08L2205/16

Abstract: A method for preparing an aramid fiber electrochemical capacitor includes (1) immersing aramid fiber bundles in an aqueous solution; (2) adding polyvinylpyrrolidone into a silver ammonia solution to obtain a solution C, adding an aqueous glucose solution to the solution C to obtain aramid fiber bundles coated with silver nanoparticles; (3) adding the aramid fiber bundles into an aqueous solution containing γ-(2,3-glycidoxy) propyltrimethoxysilane; (4) adding the aramid fiber bundles coated by silver nanoparticles with epoxy groups into an ethanol containing carbon nanotubes with carboxyl groups; (5) adding the aramid fiber bundles with two-layered coatings into an aqueous solution containing pyrrole; (6) heating a mixture of a polyvinyl alcohol, an acid, and water to obtain a polyvinyl alcohol gel, immersing two strands of the aramid fiber bundles, carbon nanotubes and silver nanoparticle in the polyvinyl alcohol gel, and twisting the two strands together to obtain the aramid fiber electrochemical capacitor.

公开(公告)号：US11387053B2

公开(公告)日：2022-07-12

申请号：US16759330

申请日：2018-07-04

Applicant: SOOCHOW UNIVERSITY

Inventor： Aijuan Gu ,  Hao Fang ,  Guozheng Liang ,  Li Yuan

IPC: H01G11/36 ,  D06M11/83 ,  H01G11/24 ,  H01G11/40 ,  H01G11/86 ,  D06M11/74 ,  D06M13/11 ,  D06M15/61 ,  D06M13/513 ,  D06M15/37 ,  D06M23/08

Abstract: The invention discloses an aramid fiber electrode and a preparation method thereof. Silver nanoparticles, carbon nanotubes and polypyrrole were sequentially coated on the surface of the aramid fiber by chemical bonding, to prepare an aramid fiber electrode, two aramid fiber electrodes were wound with an electrolyte to obtain an aramid fiber electrochemical capacitor. Compared with the polymer fiber electrochemical capacitor prepared in the prior art, the aramid fiber electrochemical capacitor provided by the present invention has both high specific capacitance, high energy density, high mechanical performance, high stability, good flexibility and wearability. And other characteristics; the preparation method is controllable and suitable for large-scale applications.