Capacitive Energy Storage Device With Segmented Electrode Arrays
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Solution Overview
Problem
There is a need for capacitive energy storage devices that can be used as both energy storage and memory storage, with the ability to store charge efficiently and discharge it quickly, while also providing high energy density and specific energy.
Innovation Solution
The development of capacitive energy storage devices (CESDs) featuring a planar array of electrodes with dielectric material in between, arranged in various configurations such as stacked, aligned, staggered, or grid patterns, allowing for efficient energy storage and memory storage capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If traditional electrostatic capacitors are used for energy storage, then fast charge and discharge speed is achieved, but energy density and storage capacity are limited
Solution Approach 1:
The capacitor is divided into multiple discrete electrodes arranged in arrays, with dielectric material positioned between them. This segmentation allows for increased surface area and capacitance while maintaining fast charge/discharge characteristics, resolving the contradiction between speed and storage capacity.
Solution Approach 2:
The patent transitions from traditional planar capacitor structures to three-dimensional electrode arrays with multiple planes and stacking configurations. This dimensional expansion increases the effective surface area for charge storage without compromising the fast response time inherent to capacitive systems.
2Quantity of substance
If capacitor arrays are configured for high energy density, then storage capacity increases, but device complexity increases
Solution Approach 1:
Multiple electrodes are combined into integrated arrays with systematic arrangements. The dielectric material serves as a common element between adjacent electrodes, and conductive materials provide unified electrical connections, simplifying the overall structure while achieving high energy density.
Solution Approach 2:
The electrode array structure serves multiple functions simultaneously: energy storage, memory storage, and fast discharge capability. The same basic configuration can be adapted for different applications by adjusting the number of electrodes, stacking arrangements, and interconnect configurations.
3Use of energy by moving object
If multiple electrode groups are arranged in stacked planes, then energy density and specific energy increase, but manufacturing complexity increases
Solution Approach 1:
The stacked capacitor structure is segmented into modular units that can be manufactured independently and then assembled. Each stack comprises multiple electrodes and dielectric layers that can be produced using standard manufacturing techniques, reducing overall manufacturing complexity while achieving high specific energy.
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
CESDs achieve increased energy density and specific energy, enabling faster charge and discharge cycles while maintaining high storage capacity, making them suitable for both energy storage and memory applications.
Implementation Method 1
regions of the dielectric material located between adjacent electrodes define capacitive elements
Implementation Method 2
the storage of electrical energy in the form of charge using conductive electrodes
Data Source
AI summary
Capacitive energy storage devices (CESDs) are disclosed, along with methods of making and using the CESDs. A CESD includes an array of electrodes with spaces between the electrodes. A dielectric material occupies spaces between the electrodes; regions of the dielectric material located between adjacent electrodes define capacitive elements. The disclosed CESDs are useful as energy storage devices and/or memory storage devices.