Supercapatteries from hierarchically designed biogenic sources
In modern society, charge storage devices are ubiquitous and are predicted to become ever more important in the future. This will need to be supported by fundamental advancements as portable devices become more power-hungry, more charge storage is needed to bridge electricity generation drop- offs as a result of increased reliance on renewable energy sources, and devices require improved charge-discharge cycling stability for example for electric transport use. We also need to be careful not to develop systems that will deplete mineral resources to guarantee a sustainable solution.
Newly developed energy storage devices must therefore have a high specific energy density (large storage capability per unit mass and volume) but also a high specific power (large power supply per unit mass and volume).
We believe we can develop new energy storage devices that wre hybrids between traditional super capacitors and batteries which are called supercapattery devices These are electrical energy storage devices that fall the existing gap between capacitors and batteries with the needed high energy density and power characteristics, high cycling stability, and based largely on renewable resources. We target an energy density and power of 150-300 Wh/kg and 10-50 W/kg respectively, and we will develop scalable methods to prepare the electrode materials.