Abstract: We developed a high-performance air-cathode for aluminum-air batteries based on carbon nanotube/activated carbon material loading in a carbon sheet substrate. By using activated carbon, which has a large surface area, the air-cathode performance can be improved. Carbon nanotube coating liquid plays the role of a binder to bind activated carbon powder to the substrate. The fabricated air-cathode was optimized to obtain the maximum power density. The maximum power density was 2.3mW/cm² obtained at 7.9mA/cm² current density, respectively.

Key words: Aluminum-air battery, activated carbon, carbon nanotube, solid electrolyte.

Cite: Tatsuya Okobira, Dang Trang Nguyen, Kozo Taguchi, "Optimization of CNT/Activated Carbon-Based Cathodes for High-Performance Aluminum-Air Batteries," International Journal of Materials Science and Engineering, Vol. 8, No. 2, pp. 45-51, June 2020. doi: 10.17706/ijmse.2020.8.2.45-51.

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