Magnetic Capacitor Using Magnetized Layers for High Energy Density
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Solution Overview
Problem
Conventional capacitors with high dielectric constants are not scalable to smaller dielectric thicknesses, as the energy storage density remains constant when the dielectric thickness is decreased below 50 μm, limiting their ability to produce high capacitance and energy storage.
Innovation Solution
A magnetic field is applied to a capacitive device to increase the dielectric constant to greater than 1010 while maintaining the dielectric thickness below 100 nm, using magnetized layers to enhance the electrical properties of the insulator layer, allowing for a high capacitance and large energy storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the dielectric thickness is reduced below 50 μm to increase capacitance, then the capacitance increases, but the energy storage density remains constant and cannot be increased
Solution Approach 1:
The patent applies a magnetic field to change the physical state of the insulator material, transforming it from a conventional dielectric to a magnetized insulator. This parameter change in the material's magnetic state enables the insulator to achieve extremely high dielectric constants (greater than 10^10) while maintaining thin thickness (below 100 nm), thereby simultaneously increasing capacitance and energy storage density
Solution Approach 2:
The patent creates a composite structure by combining magnetized layers with the insulator layer. The magnetized layers are positioned to apply a magnetic field to the insulator, creating a composite system where the interaction between magnetic and electric fields produces the desired high dielectric constant and high energy storage density in a thin-film configuration
2Reliability
If magnetized layers are added to increase dielectric constant to greater than 10^10, then the energy storage density increases, but the device complexity increases
Solution Approach 1:
The patent introduces a magnetic field dimension to the conventional electric field-based capacitor structure. By applying magnetic fields through magnetized layers positioned above and below the insulator, the patent utilizes the magnetic dimension to enhance the dielectric properties, achieving high energy storage density without significantly complicating the overall device architecture
Solution Approach 2:
The magnetized layers serve as intermediary components that mediate between the external magnetic field source and the insulator layer. These intermediary layers apply the magnetic field to the insulator, enabling the insulator to achieve extremely high dielectric constants without direct contact with complex magnetic field generation equipment, thereby simplifying the overall device structure
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables the production of a magnetic capacitor with a high dielectric constant and capacitance, effectively increasing electrical energy storage while maintaining a thin insulator layer, thereby overcoming the scalability limitations of conventional capacitors.
Implementation Method 1
A magnetic field is applied to a capacitive device to increase the dielectric constant to greater than 10^10 while maintaining the dielectric thickness below 100 nm
Implementation Method 2
using magnetized layers to enhance the electrical properties of the insulator layer
Data Source
AI summary
A magnetic capacitor includes a first electrode layer formed by depositing a first conducting material including graphene, a second electrode layer formed by depositing a second conducting material including graphene, and an insulator layer located between the first electrode layer and the second electrode layer. The magnetic capacitor further includes a first magnetized layer that includes one or more first ferro-magnetic elements that are magnetized to apply a first magnetic field to the insulator layer, and a second magnetized layer that includes one or more second ferro-magnetic elements that are magnetized to apply a second magnetic field to the insulator layer. The insulator layer is located between the first magnetized layer and the second magnetized layer. The first magnetic field and the second magnetic field improve a first electrical property of the magnetic capacitor.