Patent ID: 8853917

Claim:
A carbon nanotube based electrostrictive element comprising: two electrostrictive layers electrically connected to each other at a first side, and spaced and insulated from each other at a second side, wherein the first side is opposite to the second side, the two electrostrictive layers are substantially parallel to each other and spaced from each other, the two electrostrictive layers are located on two different parallel planes, and the two electrostrictive layers extend from the first side to the second side, wherein each of the two electrostrictive layers comprises a flexible polymer matrix and a plurality of carbon nanotubes disposed in the flexible polymer matrix, and the plurality of carbon nanotubes are interconnected with each other forming a conductive network; an electrical connector located at the first side, wherein the two electrostrictive layers are electrically connected to each other via the electrical connector at the second side; two electrodes located at the second side, wherein the two electrodes are electrically connected respectively to the two electrostrictive layers; and an insulating layer located between the two electrostrictive layers, wherein the insulating layer comprises a polymer material and a plurality of air columns disposed in the polymer material.