ENHANCER · Engineering Hybrid Metal Nitrides/Carbon-Atom Wire Novel Materials for high-performance Electrochemical Energy Storage

Engineering Hybrid Metal Nitrides/Carbon-Atom Wire Novel Materials for high-performance Electrochemical Energy Storage

Due to the limited resources in crude oil and global energy demand, the energy production using renewable sources and the advancement in electrochemical energy storage devices has received significant attention. For the electrochemical energy storage devices (e.g. supercapacitors, and battery), electrode materials plays a major role and hence design of suitable electrode materials with admirable properties such as high surface area, electrochemical stability, and electrical conductivity became necessary. Among the electrochemical energy storage devices, supercapacitor provides high power density and hence being utilized for high-power applications such as rapid start, and breaking systems. On the other hand, battery with high energy density is quite popular for the hybrid electric vehicles, mobiles, laptops etc. However, both the devices can not be used as stand alone since supercapacitor has lower energy density than the battery and battery has poor power density. Thus they are the commentary devices used for energy storage and deliver. However, supercapacitor came to the spotlight to store and deliver the charges for on chip devices or internet of things application. Considering supercapacitor device, depending on the charge storage mechanism, the electrode materials are categorized into electric double layer capacitor (EDLC) and pseudocapacitor. EDLC, mostly carbon based materials, stored the charge through double layer formation at the electrode/electrolyte interface, and hence designing highly porous carbon structures with excellent electrical and thermal conductivity has gained the attention. Thanks to the charge-storage mechanism that the EDLC provides excellent electrochemical stability and power density. On the other hand, as pseudocapactive materials stored the charge via Faradaic redox reactions at the interface, they provides around 10-100 times higher charge storage capacitance but shows poor cycle stability. However, there is huge scope to design novel nanostructures by cost-effective and sustainable approach. Hence the current research focus on fusing this two types of materials to improve the energy storage performances further. With this motivation, the current ENHANCER project was focused on designing highly porous carbon nanostructures and the composite with pseudocapacitive materials and studying their structure-property relationships to exploit them for supercapacitor application.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз