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Study of Activated Carbon Sheets Used for Air‐Cathodes of Portable Quasi‐Solid Aluminum‐Air Batteries
Author(s) -
Iwai Toshiki,
Nguyen DangTrang,
Taguchi Kozo
Publication year - 2021
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.23343
Subject(s) - cathode , materials science , activated carbon , electrolyte , anode , battery (electricity) , carbon fibers , chemical engineering , porosity , power density , composite material , electrical engineering , chemistry , electrode , engineering , organic chemistry , power (physics) , adsorption , physics , quantum mechanics , composite number
The air‐cathode is investigated for the development and optimization of low‐cost, miniaturized, portable, quasi‐solid aluminum‐air batteries. The battery used aluminum as the anode and gelation sodium chloride as the electrolyte. The air‐cathode was activated carbon sheet made of carbon fiber, cellulose, and activated carbon powder. The air‐cathode requires a large surface area. Activated carbon (AC) has the property of porosity and large surface area. In this study, this property was utilized for enhancing the performance of the air‐cathode. The performance of AC sheets with AC ratio in the range of 0–75 wt% was compared. 60 wt% sample generated the highest maximum power density of 3.5 mW/cm −2 with an energy density of 1.0 kWh/kg. © 2021 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.