A two-dimensional stretchable supercapacitor based on a viscous electrolyte and a preparation method thereof

CN120709081BActive Publication Date: 2026-04-21Institute of Light Resources and Environmental Sciences, Henan Academy of Sciences
View PDF 3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Institute of Light Resources and Environmental Sciences, Henan Academy of Sciences
Filing Date
2025-06-27
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing two-dimensional stretchable supercapacitors lack resilience after stretching and deformation. Furthermore, when the substrate and the electrode electrolyte deform asynchronously, interfacial misalignment, delamination, and detachment can easily occur, leading to increased resistance and decreased performance. This makes it difficult to simultaneously meet the requirements of high stretchability, high energy, and power density.

Method used

A nested viscous multiphase gel supercapacitor based on a viscous electrolyte is adopted, in which a semi-gel electrode is embedded in a semi-gel viscous electrolyte. By utilizing a bulk and interface synergistic energy dissipation strategy, the nested viscous multiphase gel supercapacitor is formed by printing, thereby enhancing stretchability and energy density.

Benefits of technology

It achieves 500% tensile strain, 4122.0 F cm-2 capacitance, 5760.0 μW cm-2 high power density and 1319.0 μWh cm-2 high energy density, effectively protects the electrode-electrolyte interface and improves the overall performance of the capacitor.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120709081B_ABST
    Figure CN120709081B_ABST
Patent Text Reader

Abstract

This invention discloses a two-dimensional stretchable supercapacitor based on a viscous electrolyte and its preparation method, belonging to the field of hydrogel materials technology. This invention embeds a semi-gel electrode into a semi-gel viscous electrolyte via printing, naming the composite viscous gel composed of two parallel gel electrodes and the viscous gel electrolyte a viscous multiphase gel supercapacitor. This invention utilizes a bulk and interface synergistic energy dissipation strategy to develop a nested viscous multiphase gel based on a viscous electrolyte for constructing two-dimensional stretchable supercapacitors with ultra-high strain, ultra-high energy density, and power density. This invention embeds the semi-gel electrode into the semi-gel viscous electrolyte via printing to form a nested viscous multiphase gel supercapacitor, utilizing a bulk and interface synergistic energy dissipation strategy to improve the overall performance of the two-dimensional supercapacitor (SCs), including stretchability and energy density.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • An integrated multiphase hydrogel and its preparation method and application in flexible stretchable supercapacitors

    CN117164892B

  • Stretchable, compressible and anti-freezing organic hydrogel electrolyte-based supercapacitor and preparation method thereof

    CN113611545A

  • Integrated multiphase hydrogel, preparation method thereof and application of integrated multiphase hydrogel in flexible stretchable supercapacitor

    CN117164892A