Solar cell manufacturers in Kyoto, Japan have developed a power generation fiber that can be woven into countless tiny spherical solar cells.

The woven solar cell has a diameter of 1.2 mm and was developed by the Fukui Industrial Technology Center in Japan. Each battery generates 0.2 microwatts during sunny days. If thousands of or even tens of thousands of such extremely small batteries are connected to the batteries with wires, they can become light and heat sources even at night.

According to reports, this technology will be applied to the development of new light curtains that are light and soft.