The new zinc battery is 10 times more powerful than modern lithium-ion batteries

The new zinc battery is 10 times more powerful than modern lithium-ion batteries

The new zinc battery is 10 times more powerful than modern lithium-ion

Researchers have developed a prototype of a flexible zinc battery made of silver and zinc oxide, the capacity of which is 10 times higher than that of modern lithium-ion devices.

Zinc and silver oxide batteries for a long time are considered an alternative to lithium-ion designs due to their high energy density and safety. However, they still have not found widespread use due to instability that shortens their lifespan. A team from the University of California at San Diego was able to solve this problem with a new cathode material..

To improve the electrochemical stability and conductivity of the battery, the scientists used a lead oxide coating while reducing the AC resistance or electrical impedance in parallel. They then developed a special ink that, using screen printing, made it possible to create flexible battery cells by applying them to a polymer film with a melting point of more than 200 °C.

The battery produced in this way has a capacity of 50 mA per cm2, which is 10-20 times more than that of a typical lithium-ion storage device. According to the team, with the same size, its capacity will be 5-10 times higher than existing counterparts..

The new zinc battery is 10 times more powerful than modern lithium-ion batteries

Researchers tested the performance of the new battery on a flexible display with Bluetooth modules. After 80 charge / discharge cycles, no serious signs of capacity loss were found, even despite repeated deformations.

The new zinc battery is 10 times more powerful than modern lithium-ion batteries

Such batteries can help advance the development of flexible electronics, wearable devices, soft robotics and the Internet of Things..

We also recently reported on a discovery by scientists from St. Petersburg that could improve the efficiency of sodium ion batteries..

text: Ilya Bauer, photo and video: University of California, San Diego