Electrochemical Performance of Nitrogen‐Doped Carbons: From Fundamental Studies to Practical Pouch Device

Pérez‐Román, Berta and Mazo, M. Alejandra and Pascual, Laura and Pap, József Sándor and Balázsi, Csaba and Ruiz‐Martínez‐Alcocer, Sara and García‐Gómez, Alejandra and López‐Sánchez, Jesús and Rubio‐Marcos, Fernando (2025) Electrochemical Performance of Nitrogen‐Doped Carbons: From Fundamental Studies to Practical Pouch Device. BATTERY ENERGY. No. e70057. ISSN 2768-1688 (In Press)

Preview

Text BatteryEnergy-2025-PerezRoman-Electrochemical.pdf - Published Version Available under License Creative Commons Attribution. Download (3MB) | Preview

Abstract

Nitrogen‐doped carbide‐derived carbons (N‐CDCs) are promising materials for energy storage due to their tunable structure and chemistry. Here, we design a molecular architecture strategy to promote nitrogen incorporation and microstructural control during the synthesis of N‐CDCs. By varying polymerization and pyrolysis conditions, we obtain materials with hierarchical porosity and high specific surface area ( S BET > 2000 m 2 g −1 ) and nitrogen content between 1.8 and 6.4 wt.%. Electrochemical evaluation in aqueous 6 M KOH using both three‐ and two‐electrode configurations, identifies nitrogen doping, defect density, and hierarchical porosity as key contributors to performance. The optimized N‐CDC delivers a specific capacitance of 210 F g −1 at 1 A g −1 , with high retention at elevated current densities. A proof‐of‐concept pouch cell shows 100 F g −1 at 0.5 A g −1 and stable cycling over 5000 cycles, resulting in superior coulombic efficiency. The practical applicability is demonstrated with two pouch cells connected in series to power an electronic watch (1.5 V). These findings demonstrate the effectiveness of molecular‐level control in the design of high‐performance carbon‐based supercapacitor electrodes.

Actions (login required)

Edit Item