Combined with solar cells, a “capacitive yarn” developed by US-based private research institution Drexel University and the US Naval Academy, could become the next wearable energy pack.
The yarn is produced by “natural fibre welding” of activated carbon-impregnated cotton fibre and stainless steel yarn. First, natural yarn is bathed in molten salt which makes it swell. Activated carbon particles are then infused into the yarn before it is washed with water, returning it to its original shape.
The steel allows the fibre to conduct electricity and makes it a storehouse of energy. Currently, the energy storage textile has applications in the US Navy as a wearable battery pack as well as the US Marine Corps. Researchers hint that this development could hit the fashion industry too.
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