The 11th edition of the "Scientific Report" published a material science paper online that describes a scalable battery based on paper cutting techniques. It can stretch to more than 150% of its original size while maintaining functionality. The new battery can be used to power the smart watch and can be easily incorporated into the watch's elastic wristband. In the future, when developing similar devices, it will replace rigid batteries and block batteries.
Elastic retractable energy storage devices are suitable for a variety of "impossible tasks", and some devices that cannot be covered by traditional batteries will be able to be driven by this new type of battery. Researchers have been using a variety of methods to develop this new type of battery, including the idea of ​​using folded paper to produce foldable batteries. However, equipment based on origami can only be folded in one plane, and the resulting surface is very uneven.
These issues are now resolved by Jiang Hanqing and his research team at the University of Arizona. The lithium-ion battery they designed uses the art of paper-cutting - this is a kind of origami technique. Now it combines the technology of folding and cutting to produce a new battery that can be stretched to the original length while maintaining the function. More than 150%. As a test, the researchers sewed the battery prototype into the elastic band of the smart watch, which still powers the watch when the battery is stretched.
This flexible battery will assist the design and manufacture of stretchable electronic devices. The authors of the paper propose that the new battery shows the potential in portable wearable devices and can replace rigid batteries and block batteries in the development of compact wearable devices. (Reporter Zhang Mengran)
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