A research team from the International Institute for Carbon-Neutral Energy Research at Kyushu University has built a flow-type polymer electrolyte cell for power storage, a device to store energy in chemical form through continuous electrolysis.
This already competitive energy-storage device could be used to balance out the fluctuations in renewable power supplies. Storing electricity is not without its challenges. Interest in renewable energy continues to grow, but many renewables can be frustratingly intermittent, when the sun stops shining, or the wind stops blowing, the power stops. The only credible answer is a fluctuating supply that can be partly smoothed-out by energy storage during peak production times.
The new flow-type polymer electrolyte cell reduces oxalic acid (OX) to glycolic acid, which has a higher volumetric energy-storage capacity than hydrogen gas. A newly fabricated TiO2 cathode enhanced the speed and efficiency of OX reduction.
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