Full Organic Aqueous Battery Based on TEMPO Small Molecule with Millimeter-Thick Electrodes
| Autor: | Philippe Poizot, Fabrice Odobel, Kenichi Oyaizu, Yann Pellegrin, Tom Doizy, Eric Quarez, Sofia Perticarari, Joël Gaubicher, Antonio J. Fernández-Ropero, Dominique Guyomard, Elodie Grange |
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| Přispěvatelé: | Chimie Et Interdisciplinarité : Synthèse, Analyse, Modélisation (CEISAM), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Institut des Matériaux Jean Rouxel (IMN), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Ecole Polytechnique de l'Université de Nantes (EPUN), Université de Nantes (UN)-Université de Nantes (UN), Laboratoire réactivité et chimie des solides - UMR CNRS 7314 (LRCS), Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC) |
| Rok vydání: | 2019 |
| Předmět: |
Battery (electricity)
Aqueous solution Materials science General Chemical Engineering Organic radical battery 02 engineering and technology General Chemistry Electrolyte 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 7. Clean energy Oligomer 0104 chemical sciences chemistry.chemical_compound chemistry Chemical engineering Electrode [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Materials Chemistry 0210 nano-technology Faraday efficiency Naphthalene |
| Zdroj: | Chemistry of Materials Chemistry of Materials, American Chemical Society, 2018, 31 (6), pp.1869-1880. ⟨10.1021/acs.chemmater.8b03282⟩ |
| ISSN: | 1520-5002 0897-4756 |
| Popis: | International audience; Thick electrodes with sodium and even anions intercalation organic compounds integrated in a neutral-pH aqueous battery offer unique advantages in terms of round trip efficiency, environmental impact, and scalability for off or in-grid renewable energy storage. Herein we report on the first anion-rocking chair / dual-ion organic battery. The latter reaches 35 Wh/kgmaterials at C/8 rate. It shows remarkable cyclability and Coulombic efficiency in a cheap and neutral NaClO4 electrolyte pouch cell with highly loaded millimeter thick electrodes (5 mAh/cm²). This achievement is based on a thorough study of a commercial benzene TEMPO compound (4-hydroxy TEMPO benzoate) and its naphthalene derivative (4-carboxy TEMPO naphthalate) as cathode materials, and a bipyridinium-naphthalene oligomer as the anode. Combined UV-vis spec-troelectrochemistry and operando XRD account for the much improved cyclability of the hydrophobic 4-carboxy TEMPO naphthalate at the expense of a lower specific capacity. This trend is reversed in the case of the 4-hydroxy TEMPO benzoate derivative. Results show kinetic limitations of the 4-hydroxy TEMPO benzoate are associated with the surrounding composite electrode, while inner-grain ionic and/or electronic transports play a decisive role for the 4-carboxy TEMPO naph-thalate. |
| Databáze: | OpenAIRE |
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