Anthraquinone Oligomers as Anode-Active Material in Rechargeable Nickel/Oligomer Batteries with Aqueous Electrolyte
| Autor: | Mogens Hinge, Emil Dražević, Martin Lahn Henriksen, Casper Hyttel Clausen, Anders Bentien, Anders Søndergaard Andersen |
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| Rok vydání: | 2018 |
| Předmět: |
Battery (electricity)
Aqueous solution Inorganic chemistry Energy Engineering and Power Technology Organic radical battery 02 engineering and technology Electrolyte 010402 general chemistry 021001 nanoscience & nanotechnology 7. Clean energy 01 natural sciences Anthraquinone 0104 chemical sciences Anode chemistry.chemical_compound chemistry Materials Chemistry Electrochemistry Chemical Engineering (miscellaneous) Electrical and Electronic Engineering Solubility 0210 nano-technology Capacity loss |
| Zdroj: | Clausen, C, Dražević, E, Andersen, A S, Henriksen, M, Hinge, M & Bentien, A 2018, ' Anthraquinone Oligomers as Anode-Active Material in Rechargeable Nickel/Oligomer Batteries with Aqueous Electrolyte ', ACS Applied Energy Materials, vol. 1, no. 2, pp. 243-248 . https://doi.org/10.1021/acsaem.7b00009 |
| ISSN: | 2574-0962 |
| DOI: | 10.1021/acsaem.7b00009 |
| Popis: | This work is an initial investigation of the possible use of redox-active anthraquinone as anode material in combination with Ni(OH)2 in a secondary battery with aqueous KOH electrolyte. Three different anode materials are investigated: an anthraquinone monomer and two different anthraquinone based oligomers. All batteries are rechargeable, and almost 100% of the theoretical capacity can be accessed in the first cycle, after which significant capacity loss occurs. The capacity loss is attributed mainly to swelling of the electrodes and solubility of anthraquinones in their charged (reduced) state because reduced anthraquinone is deprotonated and ionized in alkaline solutions. Nonetheless, batteries based on one of the oligomerized anthraquinones (oligo[benzene-1,4-dithiol-alt-(1,5- dichloroanthraquinone)] anode) show the best performance and retain almost 50% of the discharge capacity after 100 cycles. The better performance is attributed to the reduced solubility caused by the oligomerization. It is anti... |
| Databáze: | OpenAIRE |
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