Scientists initially used metal oxides as asymmetric supercapacitor electrodes, but ... The researchers tested their supercapacitor devices and showed they could cycle 20,000 times and exhibited ...

and consequently cannot be applied to the fabrication of asymmetric nanoscale devices such as rectifiers and ambipolar devices that require the use of closely spaced dissimilar metal electrodes.

Kaner tells us his team is now exploring using these electrodes to build hybrid supercapacitors on a large scale. You can see the device at work in the short video below. The research is described ...

The new electrode is designed to work with supercapacitors, which can charge and discharge power much faster than ... technology like self-powered graphene energy storages for wearables and various ...

Supercapacitor devices made with the graphene aerogel/manganese oxide electrodes showed good cycling stability, retaining more than 90 percent of initial capacitance after 20,000 cycles of ...

The research team has dramatically improved the performance of existing supercapacitor devices by utilizing transition ...

“With such a unique electrode arrangement, this device is able to fill an important gap in the current low power batteries and poor energy supercapacitors, paving a way towards many more new ...

Supercapacitors – more accurately known as electric double-layer or electrochemical capacitors – can store much more charge than a conventional capacitor. This is thanks to a double layer that forms ...