https://www.futureelectronics.com/m/eaton. Eaton's Hybrid supercapacitors are energy storage devices that combine the benefits of electric double-layer capacitors (EDLCs) and lithium ion technology, achieving over 100% greater energy densities with very long cycle lifetimes. Inside a hybrid supercapacitor. https://youtu.be/5o1jC1bZc1c
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