From Bench-Scale to Prototype: Case Study on a Nickel Hydroxide—Activated Carbon Hybrid Energy Storage Device

• DOI: 10.3390/batteries5040065
• Publication Date: 2019-10-16T07:32:54Z
• Authors: Alberto Adan-Mas; Pablo Arévalo-Cid; Teresa Moura e Silva; João Crespo; Maria de Fatima M...
• Keywords: KOH aqueous electrolyte energy storage device; TK1001-1841; Activated carbon; coin-cell prototype; Nickel-cobalt hydroxide; 02 engineering and technology; 7. Clean energy; TP250-261; Production of electric energy or power. Powerplants. Central stations; Coin-cell prototype; Industrial electrochemistry; nickel-cobalt hydroxide; hybrid capacitor prototype case study; activated carbon; Hybrid capacitor prototype case study; 0210 nano-technology; koh aqueous electrolyte energy storage device

Hybrid capacitors have been developed to bridge the gap between batteries and ultracapacitors. These devices combine a capacitive electrode battery-like material achieve high energy-density power-density with good cycling stability. In quest of improved electrochemical responses, several hybrid proposed. However, they are usually limited bench-scale prototypes that would likely face severe challenges during scaling up process. The present case study reports production prototype consisting commercial activated carbon nickel-cobalt hydroxide, obtained by chemical co-precipitation, separated means polyolefin-based paper. Developed power 12 W LED light, these materials were assembled characterized in coin-cell configuration stacked increase device voltage. All processes adapted constrained scalable conditions ensure reliable pre-commercial device. Important limitations this process, from geometrical constraints increased resistance, reported alongside their impact optimization on final performance, stability, metrics prototype.