Researchers develop improved graphene micro supercapacitors for wearables
Researchers from China University of Petroleum (East China), Henan Agricultural University and Chinese Academy of Sciences have developed an additive-free 3D printing process to construct graphene micro-supercapacitors (MSCs) with unprecedented electrochemical properties and seamless integrability. The team states that this achievement overcomes existing manufacturing limitations and brings closer the on-chip MSC arrays essential for the next generation of wearables.
Wearable devices require ever-smaller on-board energy solutions that can deliver bursts of power while remaining unobtrusive. Rigid coin batteries restrict device flexibility and ergonomics. Leading microscale alternatives include micro-supercapacitors (MSCs), which store and discharge energy rapidly owing to highly porous electrode materials interfacing with electrolytes. Supercapacitors’ quick charge ability and resilience to repeated charging cycles make them appealing to supplement batteries. However, difficulties producing intricately designed MSC devices that also offer high performance have confined MSCs to the lab. Conventional manufacturing techniques often lack suitable precision, flexibility, and scalability.
Source: https://www.graphene-info.com/researchers-develop-improved-graphene-micro-supercapacitors-wearables
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