| DOI | Resolve DOI: https://doi.org/10.1166/jbmb.2013.1375 |
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| Author | Search for: Koutcheiko, S.1; Search for: Vorontsov, V.1 |
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| Affiliation | - National Research Council of Canada. Security and Disruptive Technologies
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| Format | Text, Article |
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| Subject | Bio chars; Electrochemical characteristics; Electrochemical characterizations; Electrochemical performance; Physico-chemical characterization; Stack; Super capacitor; Supercapacitor electrodes; Activated carbon; Carbon dioxide; Fabrication; Wood wastes; Electrolytic capacitors |
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| Abstract | The work described in this paper was performed to evaluate a potential application of the valueadded biochar-derived activated carbon as an electrode material for supercapacitor manufacturing and to measure the electrochemical characteristics of fabricated single and stack coin supercapacitors. Physico-chemical characterization of raw material and economically-attractive physical activation (CO2 and CO2 saturated with 3% H 2O) were used to produce activated carbon with suitable parameters. Optimization of activation conditions (temperature, duration, gaseous environment) allowed production of activated carbon with a high surface area (BET) up to 1500 m²/g and iodine number up to 1200 mg/g. The most promising activated carbon was used for supercapacitor electrode fabrication. A dip-coating method was developed and utilized to prepare the large 10×10 cm electrode sheets based on Ni-foam as a support. For electrochemical characterization a batch of single coin cells (based on commercially available 2032 design/size factor) utilizing inexpensive aqueous electrolyte K/LiOH 5 M was fabricated and tested by a number of industry-accepted methods for the electrochemical performance evaluation. Based on a single cell design a stack with operating voltage of 4.5 V was assembled and evaluated. Copyright © 2013 American Scientific Publishers All rights reserved. |
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| Publication date | 2013-12-01 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC publication | This is a non-NRC publication"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC. |
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| NPARC number | 21271804 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 8b9079ee-2bed-49fc-bd25-0dfe1e4d62aa |
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| Record created | 2014-04-22 |
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| Record modified | 2020-04-22 |
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