Australians develop new laser printed waterproof e-textile technology - Image Magazine

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Australians develop new laser printed waterproof e-textile technology

Australians develop new laser printed waterproof e-textile technology

The next generation of waterproof smart fabrics will be laser printed and made in minutes. That’s the future imagined by the researchers behind new e-textile technology.

Scientists from RMIT University have developed a cost-efficient and scaleable method for rapidly fabricating textiles that are embedded with energy storage devices. In just three minutes, the method can produce a 10x10cm smart textile patch that’s waterproof, stretchable and readily integrated with energy harvesting technologies. The technology enables graphene supercapacitors – powerful and long-lasting energy storage devices that are easily combined with solar or other sources of power – to be laser printed directly onto textiles.

In a proof-of-concept, the researchers connected the supercapacitor with a solar cell, delivering an efficient, washable and self-powering smart fabric that overcomes the key drawbacks of existing e-textile energy storage technologies. The growing smart fabrics industry has diverse applications in wearable devices for the consumer, health care and defence sectors - from monitoring vital signs of patients, to tracking the location and health status of soldiers in the field, and monitoring pilots or drivers for fatigue.

Dr Litty Thekkakara, a researcher in RMIT’s School of Science, said smart textiles with built-in sensing, wireless communication or health monitoring technology called for robust and reliable energy solutions. “Current approaches to smart textile energy storage, like stitching batteries into garments or using e-fibres, can be cumbersome and heavy, and can also have capacity issues,” Thekkakara said. “These electronic components can also suffer short-circuits and mechanical failure when they come into contact with sweat or with moisture from the environment. “Our graphene-based supercapacitor is not only fully washable, it can store the energy needed to power an intelligent garment – and it can be made in minutes at large scale. “By solving the energy storage-related challenges of e-textiles, we hope to power the next generation of wearable technology and intelligent clothing.”

“It also opens the possibility for faster roll-to-roll fabrication, with the use of advanced laser printing based on multifocal fabrication and machine learning techniques,” Gu said.

The researchers have applied for a patent for the new technology, which was developed with support from RMIT Seed Fund and Design Hub project grants.

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