PhD student at the Énergie, Matériaux, Télécommunications Research Centre
Institut national de la recherche scientifique
Award-winning publication: 3D RuO2 Microsupercapacitors with Remarkable Areal Energy
Published in: Advanced Materials
Initially developed a decade ago, microsupercapacitors constitute an interesting alternative to microbatteries in light of their significant power and long service life. However, their use is limited because they store considerably less energy. In an effort to address the issue, Anaïs Ferris created an electrode material made up of a gold structure that enables the capacitors to reach the levels of current Li-ion batteries without sacrificing any of their added value. With this new energy density (approximately 1 000 times that of standard capacitors), better service life, considerable power and tolerance to variations in temperature, the microsupercapacitors could finally be used in autonomous and smart microsystems.