Matryoshka doll electrode structure's high-performance, space-saving solution for miniaturized line-filtering capacitors

https://techxplore.com/news/2024-03-matryoshka-doll-solution-generation-miniaturized.html

"AC to DC conversion... 3D interconnected porous anodized aluminum oxide template using deposition of double- or triple-layered carbon tubes with coaxial structure similar to matryoshka dolls' nested layers, maximizing surface area for charge storage and promoting rapid electrolyte ion transport...  exceptional impedance phase angles, low resistance-capacitance time constants... less bulky, better frequency response, 2 orders magnitude better specific areal capacitance, minimal power dissipation, efficient energy storage"