Manganese-Oxide Supercapacitor Electrodes
Official patent title
Nanocomposite supercapacitors for energy storage
Arabic title: مكثفات فائقة من مركبات نانوية لتخزين الطاقة
Invention
Invention
Problem
Supercapacitors need electrode materials that combine accessible surface area, conductivity, rapid charge response, and durable cycling without costly or complex fabrication.
Why it matters
Improved short-duration storage could support power buffering and renewable-energy integration, but useful devices require verified capacitance, energy, power, resistance, and cycle life.
Approach
The method charges a capacitor whose anode or cathode contains a graphitic C3N4, MnO2, and MgAl2O4 nanocomposite. Metal-oxide nanoparticles are dispersed on porous carbon-nitride sheets and operated with alternating current in a specified megahertz range.
Who may benefit
Potential beneficiaries include supercapacitor researchers, electrode-material manufacturers, power-electronics developers, renewable-energy laboratories, and nanohybrid process teams.
Potential value
The concept combines carbon-nitride nanosheets, manganese dioxide, and magnesium aluminate in a defined porous electrode material with frequency-dependent electrical characterization.
Background
Background
Supercapacitors can charge rapidly and deliver high power, but practical performance depends on electrode conductivity, active surface, pore architecture, electrolyte interaction, and stable interfaces. Hybrid electrodes combine carbonaceous and metal-oxide phases to modify double-layer and redox behavior. The publication proposes graphitic carbon nitride, manganese dioxide, and magnesium aluminate as a nanocomposite electrode. Structural and frequency-dependent electrical data are described, but the supplied evidence does not report device capacitance, energy density, power density, equivalent resistance, self-discharge, or cycle retention.
Technology overview
Technology overview
The electrode material contains graphitic C3N4, MnO2, and MgAl2O4 in a mass relationship of 5–15:2–7:75–95. It has a stated BET surface-area range of 16.2–20.2 m2/g, a 5–15 nm pore-diameter range, and metal-oxide particles with an average largest-diameter range of 6.4–9.4 nm. A capacitor bearing the material is charged at 1–12 MHz, while XRD, microscopy, conductivity, and dielectric figures characterize the material.
Potential applications
Potential applications
- Candidate supercapacitor electrodes for laboratory evaluation.
- High-frequency conductivity and dielectric research.
- Nanohybrid materials for short-duration energy-storage studies.
- Carbon-nitride and manganese-oxide electrode development.
Evidence-supported advantages
Evidence-supported advantages
- The composite integrates carbon nitride with two metal-oxide phases.
- Porous nanosheets and nanoscale oxide dispersion are specified.
- Phase, surface, pore, and frequency-dependent electrical characterization are described.
- The material can be placed in an anode or a cathode layer.
Development stage
Development stage
Laboratory structural and frequency-dependent electrical characterization is described; complete capacitor metrics, cycling, full-cell testing, and commercialization were not established.
Commercial opportunity
Commercial opportunity
The nanocomposite may interest electrode and specialty-material developers. Commercial evaluation requires independent full-cell capacitance, energy and power density, resistance, voltage window, self-discharge, thermal behavior, electrolyte compatibility, cycle life, scale-up reproducibility, cost, and comparison with established supercapacitor materials. Device-level storage performance is not established here.
Patent classifications
Patent classifications
WIPO IPC
- H01G11/32Capacitors; electrolytic capacitors, rectifiers, detectors, switching devices and light- or temperature-sensitive devices
- C01B32/20Non-metallic elements; compounds thereof
CPC
- C01G45/12Compounds containing metals not covered by subclasses C01D or C01F
- H01G11/32Capacitors; electrolytic capacitors, rectifiers, detectors, switching devices and light- or temperature-sensitive devices
- C01F7/78Compounds of beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium or rare-earth metals
- H02J7/345Electric power networks; circuit arrangements or systems for supplying or distributing electric power; electric-energy storage systems
- H01G11/46Capacitors; electrolytic capacitors, rectifiers, detectors, switching devices and light- or temperature-sensitive devices
- C01B32/20Non-metallic elements; compounds thereof
- C01P2002/70Indexing scheme for structural and physical aspects of solid inorganic compounds
- C01P2006/12Indexing scheme for structural and physical aspects of solid inorganic compounds
- H02J2207/50Electric power networks; circuit arrangements or systems for supplying or distributing electric power; electric-energy storage systems
- C01P2002/32Indexing scheme for structural and physical aspects of solid inorganic compounds
- C01P2002/01Indexing scheme for structural and physical aspects of solid inorganic compounds
Inventors
Inventors
- First inventorMohamed Khairy Abdel Fattah Omran
- InventorBabiker Yagoub Elhadi Abdulkhair
Keywords
Keywords
- supercapacitor
- energy storage
- graphitic carbon nitride
- manganese dioxide
- magnesium aluminate
- nanocomposite
- dielectric response
- electrode
Patent document and drawings
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.