Publikationen

Veröffentlichungen der Arbeitsgruppe um Prof. Dr. Andrea Balducci seit Beginn der Tätigkeit an der Friedrich-Schiller-Universität Jena

Google Scholar Profil Andrea BalducciExterner Link

58 Publikationen filtern

Die Publikationen filtern

Hervorgehobene Autoren sind Angehörige der Universität Jena.

  1. A-Site Vacancy Engineering in KNbO₃ Perovskite for Enhanced Lithium Storage

    ErscheinungsjahrErschienen in:Chemistry of materials : a publication of the American Chemical Society A. Khan, E. Quarez, N. Dupré, E. Gautron, A. Balducci, O. Crosnier, T. Brousse
    Universitätsbibliographie Jena:
    fsu_mods_00024160Externer Link

  2. Electrochemical performance of electrochemical double layer capacitors containing pyrrolidinium and ammonium fluorosulfonyl imide in acetonitrile-based electrolytes

    ErscheinungsjahrErschienen in:Electrochimica acta: the journal of the International Society of Electrochemistry I. Patil, T. Burton, A. Ladam, S. Fantini, A. Balducci
    In this study, we conducted a comprehensive analysis of the chemical-physical properties of electrolytes containing the ionic liquids N-propyl-N-methylpyrrolidinium bis(fluorosulfonyl)imide [Pyr₁₃FSI] and N-trimethyl-N-propylammonium bis (fluorosulfonyl)imide [N₁₁₁₃FSI] dissolved in acetonitrile (ACN). We showed that these innovative electrolytes display favourable transport and thermal properties. When used as electrolytes in electrical double layer capacitors (EDLCs), they allow the realization of devices with excellent energy and power density values, which can be maintained over a wide temperature range. When charge-discharge cycles are carried out, the stability of EDLCs containing these alternative electrolytes is comparable to that of devices containing conventional electrolytes. However, during float tests, their stability is affected by the occurrence of anodic dissolution of the Al current collectors.
    Universitätsbibliographie Jena:
    fsu_mods_00023462Externer Link

  3. Dilithium squarate: A game-changing sacrificial salt for pre-lithiation and interphase stabilization in non-SEI forming electrolytes

    ErscheinungsjahrErschienen in:Chemical Engineering Journal M. Granados-Moreno, R. Cid, M. Arnaiz, J. Gómez-Urbano, A. Balducci, E. Goikolea, J. Ajuria
    Universitätsbibliographie Jena:
    fsu_mods_00023540Externer Link

  4. Unravelling the mechanism of potassium-ion storage into graphite through electrolyte engineering

    ErscheinungsjahrErschienen in:Energy Storage Materials L. Meyer, A. Thiagarajan, A. Koposov, A. Balducci
    Graphite is one of the most widely used anode materials in potassium-ion batteries (PIBs). However, the exact mechanism of K⁺ions intercalation into graphite has not yet been fully understood. In addition, the intercalation process strongly depends on the selection of the electrolyte system. In this work, we evaluated the use of an electrolyte containing 1.5 M potassium bis(fluorosulfonyl)imide (KFSI) dissolved in a mixture of propylene carbonate (PC)/ 1,1,2,2-tetraethoxyethane (TEG)/ vinyl ethylene carbonate (VEC) (62:36:2 vol.%). Using such an electrolyte system it was possible to obtain experimental evidence for the formation of KC₁₆ during the potassium intercalation and deintercalation using in situ Raman spectroscopy and operando X-ray diffraction (XRD). The results are supported by the visual observation of a color change of the graphite electrode surface during the intercalation of K⁺ ions into the graphite lattice. In addition, it has been demonstrated that the selected electrolyte system eliminates the co-intercalation of the solvent into the graphite structure.
    Universitätsbibliographie Jena:
    fsu_mods_00019256Externer Link

  5. Simulations of γ-Valerolactone Solvents and Electrolytes for Lithium Batteries Using Polarizable Molecular Dynamics

    ErscheinungsjahrErschienen in:Molecules: a journal of synthetic chemistry and natural product chemistry A. Pierini, V. Migliorati, J. Gómez-Urbano, A. Balducci, S. Brutti, E. Bodo
    In this paper, we present a molecular dynamics study of the structural and dynamical properties of γ-valerolactone (GVL) both as a standalone solvent and in electrolyte formulations for electrochemistry applications. This study involves developing a new parameterization of a polarizable forcefield and applying it to simulate pure GVL and selected salt solutions. The forcefield was validated with experimental bulk data and quantum mechanical calculations, with excellent agreement obtained in both cases. Specifically, two 1M electrolyte solutions of lithium bis(fluorosulfonyl)imide and lithium bis(oxalate)borate in GVL were simulated, focusing on their ionic transport and highlighting ion solvation structure. Ion pairing in the electrolytes was also investigated through enhanced sampling molecular dynamics, obtaining a detailed picture of the ion dynamics in the GVL solution.
    Universitätsbibliographie Jena:
    fsu_mods_00019633Externer Link

  6. Sodium and Potassium Storage Behaviour in AgNbO₃ Perovskite

    ErscheinungsjahrErschienen in:Batteries and Supercaps M. Orbay, A. Khan, O. Crosnier, T. Brousse, A. Balducci
    In this work, we report on the investigation the perovskite-type AgNbO₃ as a model negative electrode for sodium and potassium systems. We demonstrated that during the initial discharge, regardless of the inserted cation, the material undergoes an activation mechanism that induces a crystalline-to-amorphous transition. This transition, in turn, leads to an enhancement of the electrode capacity. At 5 A g−¹ sodium-ion AgNbO₃ and Potassium-ion AgNbO₃ display capacities of 81 mAh g−¹ and 60 mAh g−¹, respectively. Furthermore, both electrodes display good cycling stability and efficiency over 350 cycles at 1 A g−¹.
    Universitätsbibliographie Jena:
    fsu_mods_00018108Externer Link

  7. Protic and Aprotic Acetate-Based Ionic Liquids as Electrolytes for Electrical Double Layer Capacitors

    ErscheinungsjahrErschienen in:ChemElectroChem Z. Zheng, S. Liu, A. Balducci
    This work presents the synthesis, characterization, and application of a series of aprotic and protic acetate-based ionic liquids (AcILs). These cost-effective ILs can be obtained through a simple synthesis and display good transport and thermal properties. When used as electrolytes in electrical double-layer capacitors (EDLC) they enable the fabrication of devices with an operating voltage as high as 1.8 V, which display very good cycling and float stability. The performance of these devices can be tuned by adjusting the water content of the ILs. Notably, EDLCs containing AcILs can also be realized using aluminum current collectors.
    Universitätsbibliographie Jena:
    fsu_mods_00023528Externer Link

  8. Glyoxal-based electrolytes in potassium-ion capacitors

    ErscheinungsjahrErschienen in:Journal of power sources: the international journal on the science and technology of battery, fuel cell and other electrochemical systems L. Meyer, D. Leistenschneider, A. Balducci
    Potassium-based energy storage systems demonstrate promising potential for use in high-power applications, such as potassium-ion capacitors (PICs). In this study, we present the use of an electrolyte containing 1,1,2,2-tetraethoxyethane (TEG) in combination with propylene carbonate (PC) and potassium bis(fluorosulfonyl)imide (KFSI) as electrolyte for PICs. We have shown that using this electrolyte and applying a designed test protocol, it is possible to realize PICs with good capacity and cycling stability. The high performance is possible due to the high-rate capability of the graphite electrodes in the proposed electrolyte. Subsequent analysis of the electrodes reveals both structural changes of the graphite electrode and changes in the chemical composition of the AC and graphite electrode surfaces.
    Universitätsbibliographie Jena:
    fsu_mods_00018364Externer Link

  9. A lactic acid dioxolane as a bio-based solvent for lithium-ion batteries: physicochemical and electrochemical investigations of lithium imide-based electrolytes

    ErscheinungsjahrErschienen in:Green chemistry : GC ; an international journal and green chemistry resource M. Melchiorre, K. Teoh, J. Gómez Urbano, F. Ruffo, A. Balducci
    In this study we report for the first time the application of an emerging bio-based solvent derived from lactic acid, namely 5-methyl-1,3-dioxolane-4-one (LA-H,H), as an electrolyte component for lithium-ion batteries (LIBs). Electrolyte formulations consisting of this novel bio-solvent and imide conducting salts (i.e. lithium bis(trifluoromethanesulfonyl)imide, LiTFSI, and lithium bis(fluorosulfonyl)imide, LiFSI) and the additive vinylene carbonate (VC) are prepared and thoroughly evaluated. Resulting formulations demonstrate suitable transport properties (e.g., conductivity, viscosity) and considerably low flammability compared to standard electrolyte formulations. The compatibility of the novel imide-based electrolytes with benchmark active materials such as graphite (GR) and lithium iron phosphate (LFP) are explored. The results indicate that the use of LA-H,H-LiTFSI 1 M 5 wt% VC allows high electrochemical performance in terms of rate-capability and cycling stability for both the graphite (339 mA h g−¹ at 1C) and the LFP (100 mA h g−¹ at 1C) electrodes. The suitability of this novel electrolyte configuration was further demonstrated through the assembly of a lab-scale full-cell LIB showing remarkable rate capability and cycling stability. These results indicate that LA-H,H can be used as an electrolyte component for LIBs, and pave the way for its use as bio-based solvent in energy storage systems.
    Universitätsbibliographie Jena:
    fsu_mods_00019505Externer Link

  10. The Value Chain of Sustainable Dual Carbon Sodium Ion Capacitors

    ErscheinungsjahrErschienen in:Batteries and Supercaps R. Mysyk, D. Carriazo, D. Saurel, M. Arnaiz, O. Crosnier, T. Brousse, K. Ge, P. Taberna, P. Simon, S. Ratso, E. Karu, A. Varzi, J. Pablo Badillo, A. Hainthaler, A. Sidharthan, A. Balducci, O. Egwu Eleri, A. Saenz de Buruaga, J. Olarte, J. Dayron Lopez Cardona, F. Bahmei, S. Bautista, M. Weil, J. Ajuria
    Universitätsbibliographie Jena:
    fsu_mods_00021991Externer Link

  11. Formulation and Recycling of a Novel Electrolyte Based on Bio-Derived γ-Valerolactone and Lithium Bis(trifluoromethanesulfonyl)imide for Lithium-Ion Batteries

    ErscheinungsjahrErschienen in:Small : nano micro K. Teoh, M. Melchiorre, S. Darlami Magar, C. Leibing, F. Ruffo, J. Gómez-Urbano, A. Balducci
    This work introduces a novel electrolyte comprising lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) salt dissolved in bio-based γ-valerolactone (GVL) for lithium-ion batteries (LIBs). Moreover, a simple and sustainable aqueous-based recycling approach for recovering the imide-based lithium salt is proposed. Beyond the sustainable origin of the GVL solvent, this electrolyte exhibits reduced flammability risk, characterized by a flash point of 136 °C, along with favorable transport properties (conductivity of 6.2 mS cm−¹ at 20 °C) and good electrochemical stability (5.0 V vs Li⁺/Li). Its good compatibility with graphite and lithium iron phosphate electrodes ensures remarkable cycling stability in LIB full-cells after 200 galvanostatic cycles at 1 C. Furthermore, the proposed liquid–liquid phase electrolyte recycling method allows for a nearly complete recovery of the LiTFSI salt (97–99%) and the GVL solvent (78%). The feasibility of the recycling process is validated by the reutilization of the recovered LiTFSI salt in electric double-layer capacitors, achieving performances similar to that of the pristine salt with exceptional long-term stability.
    Universitätsbibliographie Jena:
    fsu_mods_00017703Externer Link

  12. Glyoxylic-Acetal-Based Gel-Polymer Electrolytes for Lithium-Ion Batteries

    ErscheinungsjahrErschienen in:Batteries and Supercaps C. Leibing, S. Muench, J. Gómez Urbano, U. Schubert, A. Balducci
    This work focuses on the combination of two strategies to improve the safety of lithium-ion batteries: The use of a glyoxylic-acetal, 1,1,2,2-tetraethoxyethane, in the solvent blend to reduce the flammability of the liquid electrolyte and further its confinement inside of a methacrylate-based polymer matrix, to prevent electrolyte leakage from the battery cells. Physicochemical characterizations of this novel gel-polymer electrolyte (GPE) confirm its improved thermal properties and suitable ionic conductivity, as well as electrochemical stability window. Tests in LFP and hard carbon half-cells vs. lithium metal show that the combination of glyoxylic-acetal-based electrolyte and the methacrylate-based polymer matrix can promote lithium-ion intercalation and deintercalation with stable capacity values. The application in lithium-ion battery full cells furthermore shows that the GPE can promote a similar performance compared to the respective liquid electrolyte and can therefore make possible the realization of energy storage devices with improved safety characteristics.
    Universitätsbibliographie Jena:
    fsu_mods_00017948Externer Link
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