Researchers from University of Tokyo develop a new stretchable circuitry which could be stretched up to 1.7 times their original size, and the performance will not be reduced.

The secret behind this is conductive wires made from a new carbon nanotube-polymer composite. Although this is not a new area, too many nanotube clusters will cause the composite to harden.

But Tokyo university’s researchers resolve this problem by mixing the nanotubes with an ionic liquid containing charged particles that keep nanotubes evenly distributed and prevent them from clumping together. As a result, this new material is able to conduct electricity more than 500 times better than any other similar product.

[source]