18464417. PIEZOELECTRIC FILM AND LAMINATED PIEZOELECTRIC ELEMENT simplified abstract (FUJIFILM Corporation)
Contents
PIEZOELECTRIC FILM AND LAMINATED PIEZOELECTRIC ELEMENT
Organization Name
Inventor(s)
Yoshinori Tamada of Minamiashigara-shi (JP)
PIEZOELECTRIC FILM AND LAMINATED PIEZOELECTRIC ELEMENT - A simplified explanation of the abstract
This abstract first appeared for US patent application 18464417 titled 'PIEZOELECTRIC FILM AND LAMINATED PIEZOELECTRIC ELEMENT
Simplified Explanation
The present invention is a piezoelectric film that has improved durability, high sound pressure output, reduced resistance of electrode layer, and suppressed heat generation.
- The piezoelectric film includes a piezoelectric layer with piezoelectric particles in a polymer matrix.
- Electrode layers are provided on both surfaces of the piezoelectric layer.
- An interlayer is placed between the piezoelectric layer and the electrode layers.
- The interlayer contains carbon and/or a metal.
- The metal atom concentration is between 30 to 90 atm % or the carbon atom concentration is between 85 to 95 atm %.
Potential applications of this technology:
- Acoustic devices such as speakers, microphones, and ultrasonic transducers.
- Sensing devices for pressure, acceleration, and vibration.
- Energy harvesting devices to convert mechanical energy into electrical energy.
Problems solved by this technology:
- Improved durability of the piezoelectric film.
- Higher sound pressure output.
- Reduced resistance of the electrode layer.
- Suppressed heat generation.
Benefits of this technology:
- Enhanced performance and longevity of acoustic and sensing devices.
- Improved efficiency of energy harvesting devices.
- Potential for smaller and more compact device designs.
- Increased reliability and stability of piezoelectric film.
Original Abstract Submitted
An object of the present invention is to provide a piezoelectric film that has satisfactory durability, is capable of outputting a sound with a high sound pressure, decreases the resistance of an electrode layer, and is capable of suppressing heat generation. The above-described object is achieved by providing the piezoelectric film including a piezoelectric layer containing piezoelectric particles in a matrix that contains a polymer material, electrode layers provided on both surfaces of the piezoelectric layer, and an interlayer provided on at least one side between the piezoelectric layer and the electrode layers, in which the interlayer contains carbon and/or a metal, and a metal atom concentration of 30 to 90 atm % or a carbon atom concentration of 85 to 95 atm % is satisfied.
