Japanese
paper folding inspires development of flexible battery that could transform the
wearable technology industry.
The
emergence of wearable technology and devices such as smartwatches and fitness
bands has brought with it a need for a new type of battery, one that is
flexible – and that’s exactly what researchers in the US have developed.
A
team at Arizona State University turned to origami as inspiration for the
design of a new lithium-ion battery, specifically a variation called kirigami,
where the paper is cut as well as being folded.
Using
kirigami techniques allowed the team to develop a flexible lithium-ion battery
that could be stretched to 150% of its original size, without losing
capability.
The
team used the battery to successfully power a Samsung Gear 2 smartwatch, by
sewing it into the elastic armband connected to the timepiece.
Even
when the test subject flexes his arm, the watch still works.
Stretchable
batteries could be sewn into fabrics – even clothing.
Hanqing
Jiang, associate professor at the university, believes the battery’s
versatility could change the design of wearable devices. “This type of battery
could potentially be used to replace the bulky and rigid batteries that are
limiting the development of compact wearable electronic device.”
The
team says the battery can easily be mass produced, paving the way for more
intelligent, technical clothing.
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