South Korean Scientists Develop New Printable Solid State Battery Technology PRISS

Scientists from Ulsan University of Technology (UNIST) in South Korea invented a new type of solid-state battery technology PRISS that can be printed into various shapes, and exhibited the normal operation of solid-state batteries in letters, hearts and paper glasses shape printed with this technology. Drive LED light. This technology can print solid-state batteries into different shapes, embed different surfaces as needed and provide excellent endurance, and the cost is very acceptable.

Conventional batteries typically use electrolytes that can chemically react to damage the battery's cathode. Replacement of the electrolyte with a solid-state ion conductor can improve the stability and service life of the battery. The so-called "all-solid-state battery" is a battery using a solid electrode and a solid electrolyte, and has many advantages over a liquid electrolyte battery. Researchers have achieved the elimination of traditional membranes to allow solid electrolytes that can be printed into a variety of shapes to act as conductive media.

Prof. Sang-Young Lee of Ulsan University of Science and Technology stated that “the new solid electrolyte can be cured by ultraviolet irradiation and can replace the diaphragm to achieve charge and discharge.” So after the surface is printed with a solid electrolyte, it is exposed to UV curing. No need to add a diaphragm. The printed battery can be printed on any surface layer by layer and made into various shapes. The performance of the solid-state battery produced by the PRISS process is also in line with the traditional battery, and no significant loss occurs during the charging and discharging process. Holds 90% of the power of traditional batteries and can achieve 30 cycles.

Researchers are planning to further increase the battery life and increase its energy density. And study batteries that can be directly printed on clothes. This technology will be widely used in wearable electronics and IoT products.

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