US 12327682 B1Patent grantUnited States

Nanohybrid Supercapacitor Electrodes

Official patent title

Nanohybrid supercapacitors for energy storage

Arabic title: مكثفات فائقة هجينة نانوية لتخزين الطاقة

Invention

Problem

Supercapacitors offer rapid charging and high power but can have lower energy density, while some electrode materials have limited surface area or conductivity.

Why it matters

Combining carbon nitride and metal oxides could create electrode structures with complementary surface, dielectric, and charge-transport behavior for energy-storage research.

Approach

The method charges a capacitor whose anode or cathode includes graphitic C3N4, Fe2O3, and MgAl2O4 in defined mass ratios. The nanocomposite forms nanoscale metal-oxide features on porous carbon-nitride sheets and is operated with alternating current in the megahertz range.

Who may benefit

Potential beneficiaries include supercapacitor researchers, electrode-material manufacturers, nanocomposite laboratories, electrical-component developers, and renewable-energy storage teams.

Potential value

The disclosure specifies a three-component nanohybrid, pore structure, phase composition, nanoscale morphology, and high-frequency electrical operation in one proposed capacitor-electrode material.

Background

Intermittent renewable generation increases the need for storage systems. Supercapacitors can charge and discharge rapidly and deliver high power, but their energy density may trail batteries. Hybrid electrodes seek to combine electric-double-layer and redox charge-storage mechanisms. Graphitic carbon nitride offers thermal and chemical stability and semiconductor behavior, although its standalone surface area and conductivity can be limited. The publication combines it with iron oxide and magnesium aluminate in a structured nanocomposite intended for high-frequency capacitor charging.

Technology overview

The electrode nanocomposite contains graphitic C3N4, Fe2O3, and MgAl2O4 within specified mass-ratio ranges. Metal-oxide nanoparticles are arranged on curled or wrinkled porous carbon-nitride sheets, and pore area, diameter, volume, crystal spacing, and phase peaks are defined. The capacitor is charged with alternating current at 1–15 MHz. In laboratory tests, XRD, TEM, electron diffraction, conductivity, dielectric, and impedance measurements characterize the material.

Potential applications

Candidate nanohybrid electrodes for supercapacitor research.
High-frequency capacitor charging and dielectric-material studies.
Graphitic-carbon-nitride and metal-oxide composite development.
Nanostructured electrode screening for renewable-energy storage.

Evidence-supported advantages

The nanohybrid combines carbon nitride, iron oxide, and magnesium aluminate.
Component mass ratios and pore-property ranges are defined.
Metal-oxide nanoparticles are supported on porous carbon-nitride sheets.
XRD, electron microscopy, conductivity, dielectric, and impedance characterization are described.
The claims define operation across a 1–15 MHz charging range.

Development stage

Laboratory structural and frequency-dependent electrical characterization is described; full supercapacitor performance and cycling data were not supplied, and the development stage was not independently verified beyond those reported studies.

Commercial opportunity

The nanohybrid may interest supercapacitor and electrode-material partners. Development should establish complete cell architecture, capacitance, voltage window, equivalent-series resistance, energy and power density, charge retention, cycle life, electrolyte compatibility, thermal stability, electrode processing, scalable synthesis, batch reproducibility, and comparative cost.

Patent classifications

WIPO IPC

H01G11/42Capacitors; electrolytic capacitors, rectifiers, detectors, switching devices and light- or temperature-sensitive devices
H01G11/26Capacitors; electrolytic capacitors, rectifiers, detectors, switching devices and light- or temperature-sensitive devices

CPC

H01G11/24Capacitors; electrolytic capacitors, rectifiers, detectors, switching devices and light- or temperature-sensitive devices
H01G11/26Capacitors; electrolytic capacitors, rectifiers, detectors, switching devices and light- or temperature-sensitive devices
H01G11/42Capacitors; electrolytic capacitors, rectifiers, detectors, switching devices and light- or temperature-sensitive devices
H01G11/46Capacitors; electrolytic capacitors, rectifiers, detectors, switching devices and light- or temperature-sensitive devices
H02J7/00Electric power networks; circuit arrangements or systems for supplying or distributing electric power; electric-energy storage systems

Inventors

First inventorMohamed Khairy Abdel Fattah Omran
InventorBabiker Yagoub Elhadi Abdulkhair

Keywords

supercapacitor
nanohybrid
graphitic carbon nitride
iron oxide
magnesium aluminate
electrode
high frequency
energy storage

Patent document and drawings

The patent publication is mapped to this record. Patent drawings remain within that publication; no separately cleared public media package has been supplied.