Teoh KS, Melchiorre M, Kreth FA, Bothe A, Köps L, Ruffo F, Balducci A. γ-Valerolactone as Sustainable and Low-Toxic Solvent for Electrical Double Layer Capacitors.
CHEMSUSCHEM 2023;
16:e202201845. [PMID:
36378225 PMCID:
PMC10099548 DOI:
10.1002/cssc.202201845]
[Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/31/2022] [Indexed: 06/16/2023]
Abstract
In this work, γ-valerolactone (GVL), a green solvent based on largely available biomass (carbohydrates), highly biodegradable, and with low eco-toxicological profile, was used as electrolyte component in energy storage devices. This solvent allowed the realization of electrolytes with good transport properties and high thermal stability, which could be successfully applied in electrical double layer capacitors (EDLCs). GVL-based EDLCs could operate at 2.7-2.9 V and displayed good performance in term of capacitance, cycling stability, as well as specific energy and power. The results of this study indicate that the use of solvent obtained from largely available natural sources is a feasible strategy for the realization of sustainable and safe electrolytes for EDLCs.
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