Supercapacitor Breakthrough for Better Energy Storage
Date: Friday, September 30, 2016 @ 22:24:22 EDT
Topic: Science


Via KeelyNet.com: Research by a German team could aid the superconductor industry by improving capacitance by an order of magnitude compared to current approaches. The researchers identified the improvement when using a "hybrid mix" of potassium ferricyanide in aqueous media.

In a paper titled "High-Performance Hybrid Energy Storage with Potassium Ferricyanide Redox Electrolyte," the team from the Leibniz Institute for New Materials (INM) in Saarbrücken also described how they overcame current leakage with an ion-exchange membrane.

The team, led by Professor Volker Presser of INM’s Energy Materials program division, found the hybrid medium had an energy capacity of 28.3 watt-hours per kilogram, or 11.4 watt-hours per liter.


This nears the 30-watt-hours-per-kilogram upper limit for current supercapacitor products and is “higher compared to the same cell operated in aqueous sodium sulfate,” said the team. 

The researchers also noted “excellent long-term stability” across 10,000 charge and discharge cycles. “This hybrid electrochemical energy storage system is believed to find a strong foothold in future advanced energy storage applications,” concluded the study’s authors...

Full story: http://www.greentechmedia.com/articles/read/new-research-promises-superconductor-breakthrough







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