Dual use rechargeable battery. Free Technical Library News

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Dual use battery

06.09.2023

Scientists have developed a unique hybrid battery system that can not only store and provide electricity, but also generate useful chemical compounds in the process.

Conventional batteries store energy in their electrodes and transfer it to the electrical grid when they are discharged. Another type of battery, redox batteries, store energy in chemicals that transition between two states while remaining inside the battery. The hybrid system combines both of these concepts to simultaneously store energy and create additional chemicals.

The key point in the development of this technology is the use of a bifunctional metal catalyst for the anode, made from a monoatomic alloy of rhodium and copper. This catalyst makes it possible to convert the furfural contained in the electrolyte into furfuryl alcohol when the battery is charged, and when the battery is discharged, furic acid is formed. For the cathode, the researchers used cobalt-doped nickel hydroxide material.

This innovative battery system has high energy and power density and is capable of producing both energy and chemical compounds simultaneously. For example, when storing 1 kWh of energy, the system produces 0,7 kg of furfuryl alcohol and 1 kg of furoic acid. This technology can have a wide range of applications, from home devices to industrial processes.

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