 This paper discusses the development of a hybrid ink containing wood-based cellulose nanofibers, multi-walled carbon nanotubes, and urea for use in 3D printing of nitrogen-doped thick electrodes. The ink was designed to have excellent rheological properties and facilitate electronic slash ion transport in the electrodes. The authors were able to create a variety of gel structures with high geometric accuracy and superior shape fidelity using the ink. After freeze drying and annealing, the resulting nitrogen-doped carbon block had a hierarchical porous structure and superior electrochemical performance. Additionally, the authors developed a quasi-solid state symmetric supercapacitor using two interdigitated carbon blocks made from the 3D printed ink. The supercapacitor delivered an energy density of 0.10 milli-watt Cm2 at 0.56 milli-watt Cm2. This article was authored by Guicang Zhou, Mei Chunli, Chao Zhenlu, and others. We are article.tv, links in the description below.