Patent ID: 8900709

Claim:
An elastic device, comprising: a first elastic supporter; a second elastic supporter spaced from the first elastic supporter; and at least one carbon nanotube film, a first side of the carbon nanotube film being fixed on the first elastic supporter, a second side of the carbon nanotube film, opposite to the first side, being fixed on the second elastic supporter, and a middle portion of the carbon nanotube film being suspended between the first elastic supporter and the second elastic supporter, wherein the carbon nanotube film being entirely made of carbon nanotubes and comprising: a plurality of carbon nanotube strings separately arranged, located side by side, and extending substantially along a first direction from the first side to the second side, wherein each of the plurality of carbon nanotube strings comprises a plurality of first carbon nanotubes joined end-to-end and substantially aligned along the first direction; and a plurality of second carbon nanotubes located between and in contact with adjacent two of the plurality of carbon nanotube strings, wherein the plurality of second carbon nanotubes are uniformly dispersed and randomly oriented, and a mass ratio between the plurality of second carbon nanotubes and the carbon nanotube film is in a range from about 14% to about 33% so that the carbon nanotube film is elastically deformable to at least 300% along a second direction that is substantially perpendicular to the first direction.