New strategy to boost pseudocapacitive performance of micro-supercapacitors

https://phys.org/news/2022-04-strategy-boost-pseudocapacitive-micro-supercapacitors.html

"highly concentrated water-in-salt ambipolar redox electrolyte where one ambipolar mediator (ZnI2) could offer two redox couples (I-/I2 and Zn/Zn2+) natively, with matched charge storage... two electrons to be oxidized at positive electrode and reduced at negative electrode synchronously and individually, thus offering pseudocapacitive contribution for EG-MSCs... high volumetric capacity of 106 mAh/cm3, energy density of 111 mWh/cm3, and long-term cycling stability with 92.1% retention after 5,300 cycles"

Related: Strategies to limit redox electrolyte-enhanced carbon-based supercapacitor self-discharge

https://techxplore.com/news/2023-12-strategies-limit-redox-electrolyte-enhanced-carbon-based.html