Flexible Silicon Compound Piezoelectric Element for Deformable Power Generation
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Solution Overview
Problem
Conventional piezoelectric elements require a rigid structure to efficiently convert external forces into electric energy, limiting their deformability and power generation capabilities.
Innovation Solution
A power generation element comprising a pair of electrodes with an intermediate layer made of a silicon compound, such as silicone rubber, that has deformability and contains unpaired electrons, allowing for differential deformation and enhanced power generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a rigid structure is used to efficiently transmit power to the piezoelectric element, then power transmission efficiency is improved, but deformability of the element deteriorates
Solution Approach 1:
The patent employs a flexible intermediate layer containing a silicon compound with unpaired electrons positioned between the electrodes. This layer can deform under external force while maintaining electrical contact, enabling the element to adapt to various deformation states without requiring a rigid structural support system. The flexible nature of this intermediate layer directly resolves the contradiction by providing both deformability and effective power transmission.
Solution Approach 2:
The patent utilizes the unique electrical properties of silicon compounds with unpaired electrons, which exhibit variable electrical characteristics depending on their deformation state. By changing the physical state and electrical parameters of the intermediate layer through deformation, the element can efficiently convert mechanical energy to electrical energy while maintaining flexibility, thus resolving the contradiction between rigid structure requirements and deformability needs.
2Stability of the object's composition
If a rigid structure is used to support the piezoelectric element, then structural stability is improved, but power generation capability under deformation deteriorates
Solution Approach 1:
The flexible intermediate layer serves as both a structural component and a functional element for power generation. Its flexibility allows it to undergo deformation while maintaining structural integrity, enabling the element to generate power under various deformation conditions without requiring additional rigid support structures that would constrain its movement and reduce power generation capability.
Solution Approach 2:
The element employs a composite structure with electrodes and an intermediate layer containing silicon compound with unpaired electrons. This composite design combines the electrical conductivity of electrodes with the deformable and piezoelectric properties of the silicon compound layer, achieving both structural stability and high power generation capability under deformation without needing separate rigid support systems.
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 element effectively converts external forces into electric energy with improved deformability and power generation performance, overcoming the rigidity limitations of conventional piezoelectric elements.
Implementation Method 1
This piezoelectric element utilizes a phenomenon such that, when distortion is applied to the piezoelectric element by external force such as vibration, for example, an electric charge is induced on the surface of the piezoelectric element
Data Source
AI summary
An element 1 includes a pair of electrodes 2 and 3, and an intermediate layer 4 having deformability, arranged between the pair of electrodes 2 and 3, and containing, as a material, a silicon compound including an unpaired electron. The intermediate layer 4 may contain a particle including the unpaired electron. The intermediate layer 4 may have rubber elasticity. The intermediate layer 4 may have at least one peak at a g value between 2.070 and 2.001 when being measured at an environment temperature of −150° C. by using an electron spin resonance (ESR) device. The intermediate layer 4 may have at least one peak at a g value between 2.070 and 2.001 when being measured at an environment temperature of −150° C. by using the electron spin resonance (ESR) device.