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Publications
Year 2024
- Swaby, D. Monzón, N. Ureña, J. Vivo Vilches, J.-Y. Sanchez, C. Iojoiu, A. Várez, M.T. Pérez-Prior, B. Levenfeld. Block Copolymer-Based Membranes for Vanadium Redox Flow Batteries: Synthesis, Characterization, and Performance. ACS Applied Polymer Materials, 6(15), 8966–8976. (2024).
- D. del Río Santos, C. de la Torre-Gamarra, A.J. Fernández-Ropero, B. Levenfeld, A. Várez. Optimisation of powder extrusion moulding process for thick ceramic electrodes of LiCoO2 for enhanced energy-density lithium-ion batteries. Ceramics International, 50(18, Part A), 32954-32963. (2024).
- J.M. Naranjo-Balseca, C.S. Martínez-Cisneros, A. Várez. Modelling Li-V2O5Batteries Using Galvanostatic Intermittent Titration Technique and Electrochemical Impedance Spectroscopy: Towards Final Applications. Batteries, 10(6), 172. (2024).
- M. R. Palacín, P. Johansson, R. Dominko, B. Dlugatch, D. Aurbach, Z. Li, M. Fichtner, O. Lužanin, J. Bitenc, Z. Wei, C. Glaser, J. Janek, A. Fernández-Barquín, A. R. Mainar, O. Leonet, I. Urdampilleta, J. A. Blázquez, D. S. Tchitchekova, A. Ponrouch, P. Canepa, G. S. Gautam, R. San Román Gallego Casilda, C. S. Martínez-Cisneros, N. Ureña Torres, A. Varez, J.-Y. Sanchez, K. V. Kravchyk, M. V. Kovalenko, A. A. Teck, H. Shiel, I. E. L. Stephens, M. P. Ryan, E. Zemlyanushin, S. Dsoke, R. Grieco, N. Patil, R. Marcilla, X. Gao, C. J. Carmalt, G. He, M.-M. Titirici. Roadmap on multivalent batteries. Journal of Physics: Energy, 6, 3, 031501. (2024)
- I. Romero-García, M. E. Sotomayor, B. Levenfeld, A. Varez, A. Varzi, G.-T. Kim, S. Passerini. Corrigendum to “High-capacity Li4Ti5O12-C thick ceramic electrodes manufactured by powder injection moulding”. Journal of the European Ceramic Society, 44, 4, 2685. (2024)
- D. M. Reinoso, N. Ureña, M. T. Pérez Prior, B. Levenfeld, A. Varez. In situ cross-linking strategy for the synthesis of three-dimensional interconnected polymer/ceramic composite electrolyte. Journal Polymer, 296, 126728. (2024)
- E. Batuecas, C. S. Martínez-Cisneros, D. Serrano, A. Varez. Life cycle assessment of lab-scale solid sodium-ion batteries: A sustainable alternative to liquid lithium-ion batteries. Journal of Energy Storage, 80, 110355. (2024)
- B. Pandit, M. Johansen, C. S. Martínez-Cisneros, J. M. Naranjo-Balseca, B. Levenfeld, D. Bomholdt Ravnsbæk, A. Varez. Na3V2(PO4)3 Cathode for Room-Temperature Solid-State Sodium-Ion Batteries: Advanced In Situ Synchrotron X-ray Studies to Understand Intermediate Phase Evolution. Chemistry of Materials, Chemistry of Materials, 36, 5, 2314–2324. (2024)
- D. M. Reinoso, C. de la Torre-Gamarra, A. J. Fernández-Ropero, B. Levenfeld, A. Varez. Advancements in Quasi-Solid-State Li Batteries: A Rigid Hybrid Electrolyte Using LATP Porous Ceramic Membrane and Infiltrated Ionic Liquid. Journal ACS Applied Energy Materials, American Chemical Society, 7, 4, 6 1527–1538. (2024)
- I. Romero-García, M. E. Sotomayor, B. Levenfeld, A. Varez, A. Varzi, G.T. Kim, S. Passerini. High-capacity Li4Ti5O12-C thick ceramic electrodes manufactured by powder injection moulding. Journal of the European Ceramic Society, 44, 2, 978-985. (2024)
Year 2023
- J. M. Naranjo-Balseca, C. S. Martínez Cisneros, B. Pandit, A. Varez. “High performance NASICON ceramic electrolytes produced by tape-casting and low temperature hot-pressing: Towards sustainable all-solid-state sodium batteries operating at room temperature.” Journal of the European Ceramic Society, 43, 11, 4826-4836. (2023)
- B. Pandit, M. Johansen, B. P. Andersen, C. S. Martínez-Cisneros, B. Levenfeld, D. B. Ravnsbæk , A. Varez. “All-solid-state sodium-ion batteries operating at room temperature based on NASICON-type NaTi2(PO4)3 cathode and ceramic NASICON solid electrolyte: A complete in situ synchrotron X-ray study”.Chemical Engineering Journal. Volume 472, 144509. (2023)
- C. de la Torre Gamarra, M. D. García Suelto, D. del Río Santos, B. Levenfeld, A. Varez. “3D-printing of easily recyclable all-ceramic thick LiCoO2 electrodes with enhanced areal capacity for Li-ion batteries using a highly filled thermoplastic filament”. Journal of Colloid and Interface Science, 642, 351-363. (2023)
- I. Gorban, N. Ureña, M. T. Pérez-Prior, A. Varez, B. Levenfeld, D. del Río and M. Soldatov. “Using Metal-Organic Framework HKUST-1 for the Preparation of High-Conductive Hybrid Membranes Based on Multiblock Copolymers for Fuel Cells”. Polymers, 15(2), 323. (2023)
- C. S. Martínez Cisneros, B. Pandit, B. Levenfeld, A. Varez, J.-Y. Sanchez. “Flexible solventfree polymer electrolytes for solidstate Na batteries”. Journal of Power Sources, 559, 232644. (2023)
- W. Bucheli, R. Jimenez, J. Sanz, M. E. Sotomayor, A. Varez. “Influence of cation vacancies on Li conductivity of La1/2Li1/22xSrxTiO3 perovskites (0 < x ≤0.25). The role of nominal and effective vacancies.” ACS Applied Energy Materials, 6, 5, 2758–2767. (2023)
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S. Swaby , N. Ureña , M. T. Pérez-Prior , D. del Río, A. Varez , J.-Y. Sanchez , C. Iojoiu , B. Levenfeld. “Proton Conducting Sulfonated Polysulfone and Polyphenylsulfone Multiblock Copolymers with Improved Performances for Fuel Cell Applications”. Journal of Industrial and Engineering Chemistry, 122, 25, 366-377. (2023)
- P. Salcedo-Abraira, C. Biglione, S. M. F. Vilela, E. Svensson, N. Ureña, F. Salles, M. T. Pérez-Prior, T. Willhammar, P. Trens, A. Varez, A. Ken Inge, P. Horcajada. “High Proton Conductivity of a Bismuth Phosphonate Metal–Organic Framework with Unusual Topology”. Chem. Mater., 35, 11, 4329–4337. (2023)
Year 2022
- M.M. Gomaa, A. Sánchez-Ramos, N. Ureña, M.T. Pérez-Prior, B. Levenfeld, P.A. García-Salaberri, M.R. Mohamed Elsharkawy. Characterization and modeling of free volume and ionic conduction in multiblock copolymer proton exchange membranes. Polymers, 14(9), 1688. (2022).
- J. F. Vivo-Vilches, A. Vázquez-Navalmoral, C. de la Torre-Gamarra, J. Cebollada, A. Várez, and B. Levenfeld. “Layer shape LiFePO4 obtained by Powder Extrusion Molding assolid boosters for ferro/ferricyanide catholyte in semisolid redoxflow battery: effect of porosity and shape” Batteries and Supercaps, 5, 7, e202200050. (2022)
- K. Vezzù, E. Garcia-Gonzalez, G. Pagot, E. Urones-Garrote, M.E. Sotomayor, A. Varez, V. Di Noto. “Effect of Relaxations on Conductivity of La1/2+1/2xLi1/2-1/2xTi1-xAlxO3 Fast Ion Conductors” Chemistry of Materials, 34, 12, 5484–5499. (2022)
Year 2021
- .C. Martínez-Cisneros, C. Antonelli, B. Levenfeld, A. Várez, J.C. Perez-Flores, A. Santos-Mendez, A. Kuhn and J-Y Sanchez, “Non-woven polyaramid porous membranes as separators for Li-ion batteries?.” Electrochimica Acta, 390, 10, 138835.(2021)
- C.S. Martinez-Cisneros, B. Levenfeld, J.Y. Sanchez and A. Varez, “Development of sodium hybrid quasi-solid electrolytes based on porous NASICON and ionic liquids” Journal of the European Ceramic Society, 41, 15, 7723-7733.(2021)
- G. Pagot, K. Vezzù, C.S. Martinez-Cisneros, Claire Antonelli, B. Levenfeld, A. Varez, J-Y Sanchez and V. Di Noto, “Interplay Between Conductivity, Matrix Relaxations and Composition of Ca-Polyoxyethylene Polymer Electrolytes”. ChemElectroChem, 8, 13, 2459-2466.(2021)
- P. Salcedo-Abraira, S. M. F. Vilela, N. Ureña, F. Salles, A. Várez, and P. Horcajada, “Ion-Exchanged UPG-1 as Potential Electrolyte for Fuel Cells”, Inorg. Chem. , 60, 16, 11803–11812 (2021)
- C. de la Torre-Gamarra, M.E. Sotomayor, W. Bucheli, J.M. Amarilla, J.Y. Sanchez, B. Levenfeld, A. Várez, “Tape casting manufacturing of thick Li4Ti5O12 ceramic electrodes with high areal capacity for lithium-ion batteries.” Journal of the European Ceramic Society, 41 (1), 1025 – 1032, (2021).
- I.Boyano, A.R. Mainar, J.A. Blazquez, A. Kvasha, M. Bengoechea, I. de Meatza, S. Garcia-Martin, A. Varez, J. Sanz, and F Garcia-Alvarardo. : “Reduction of Grain Boundary Resistance of La0.5Li0.5TiO3 by the Addition of Organic Polymers” Nanomaterials, 11(1), 61, (2021).
- N. Ureña, M.T. Perez-Prior, B. Levenfeld and P.A. Garcia-Salaberri, “On the Conductivity of Proton-Exchange Membranes Based on Multiblock Copolymers of Sulfonated Polysulfone and Polyphenylsulfone: An Experimental and Modeling Study” Polymers, 13(3), 363 (2021).
- S. Swaby, N. Ureña, M.T. Perez-Prior, A. Várez, B. Levenfeld, “Synthesis and Characterization of Novel Anion Exchange Membranes based on Semi-Interpenetrating Networks of functionalized Polysulfone: Effect of Ionic Crosslinking”, Polymers, 13(6), 958 (2021).
- N. Ureña, M.T. Perez-Prior, C. del Rio, A. Várez, B. Levenfeld, “New Amphiphilic Semi-Interpenetrating Networks based on Polysulfone for Anion-Exchange Membrane Fuel Cells with Improved Alkaline and Mechanical Stabilities.” Polymer, 226, (2021), 123824.
- M.J. Martínez-Morlanes, C. de la Torre-Gamarra, M.T. Perez-Prior, S. Lara-Benito, C. del Río Bueno, M.T. Pérez-Prior, A. Várez and B. Levenfeld. “Synthesis and characterization of hybrid sulfonated polysulfone/TiO2 (B) nanowires composite membranes for their application in fuel cells” Polymers. 13(12), 2030, (2021).
Year 2020
- C. de la Torre-Gamarra, M.E. Sotomayor, J.Y. Sanchez, , B. Levenfeld, A. Várez, B. Laïk and J-P Pereira-Ramos. “High mass loading additive-free LiFePO4 cathodes with 500 μm thickness for high areal capacity Li-ion batteries.” Journal of Power Sources, 458, 228033, (2020).
- C.S. Martinez-Cisneros, A. Fernández, C. Antonelli, B. Levenfeld, A. Varez, K.Vezzù, V. Di Noto and J.Y. Sanchez, “Opening the door to liquid-free polymer electrolytes for calcium batteries”, Electrochimica Acta, 353, 136525 (2020)
- J. Fabian-Plaza, G.Meiro,A.Post, R.Pérez-Casero, F.J. Palomares, P.Tejedor, S. Naghdi, A. Várez and G. Sánchez-Arriaga, “Trade-off analysis of C12A7:e− deposition techniques applied to Low Work Function Tethers.” Acta Astronautica, 177, 806-812, (2020).
- S.M.F. Vilela, P. Salcedo-Abraira, A. Gomez-Peña, P. Trens, A. Varez, F. Salles, P. Horcajada, “Proton conductive Zr-phosphonate UPG-1: aminoacid insertion as proton carrier stabilizer”, Molecules, 25(15), 3519, (2020)
- S. Naghdi, H-Y Song, A. Varez, K-Y Rhee, S-W Kim, “Engineering the electrical and optical properties of graphene oxide via simultaneous alkali metal doping and thermal annealing”, Journal of Materials Research and Technology, 9(6), 15824-15837, (2020)
Year 2019
- M.N. Ureña-Torres, Pérez Prior, M. T.; C. del Río; A. Várez; J-Y. Sanchez; C. Iojoiu; Belén Levenfeld. “Multiblock Copolymers of Sulfonated Udel/Radel Poly(ether sulfone)s as Solid Electrolytes for Proton Exchange Membrane Fuel Cells”, Electrochimica Acta, 302, 428-440, (2019).
- S.M.F. Vilela, T. Devic, A. Varez, F. Salles, P. Horcajada, “A new proton-conducting Bi-carboxylate framework”, Dalton Transactions, 48 (30), 11181-11185, (2019).
- M.E. Sotomayor, C. de la Torre-Gamarra, B. Levenfeld, J.Y. Sanchez, A. Varez, G-T Kim, A. Varzi and S. Passerini. “Ultra-thick battery electrodes for high gravimetric and volumetric energy density Li-ion batteries”, Journal of Power Sources, 437, 226928, (2019)
Year 2018
- C. de la Torre-Gamarra, M. Woszczak, B. Levenfeld, A. Varez, E. García-González, E. Urones-Garrote and V. Di Noto. “Interplay between humidity, temperature and electrical response of a conductivity sensor based on a double La2LiNbO6 perovskite” Journal of Materials Chemistry A. 6, 5430 – 5442 (2018).
- M.E. Sotomayor, C. de la Torre-Gamarra, W. Bucheli, J.M. Amarilla, A. Varez, B. Levenfeld and J.Y. Sanchez, “Additives-free Li4Ti5012 thick electrodes for Li-ion batteries with high electrochemical performances”. Journal of Materials Chemistry A. 6, 5952 – 5961 (2018).
- A. Egaña, M. Tardío, C. de la Torre-Gamarra, A. Várez, E. Cantelar and J.E. Muñoz Santiuste, “Spectroscopy and Judd-Ofelt analysis of Er3+ ions in Li5La3Nb2O12 garnet-type ceramic powder”. Journal of Luminescence. 202, 232-238, (2018).
- A. Egaña, C. de la Torre-Gamarra, M. Tardío, , A. Várez and J.E. Muñoz Santiuste. “Structural, morphology and luminescence study of Er+3-doped garnet-type Li5La3Nb2O12 electrolytes as a potential new phosphor.”, Ceramics International, 44(15), 18969-18977, (2018).
Year 2017
- A. Thiam, C. Antonelli, C. Iojoiu, F. Alloin and J-Y. Sanchez. “Optimizing ionic conduction of poly(oxyethylene) electrolytes through controlling the cross-link density” Electrochimica Acta, 240, 307-315 (2017).
- T. Duran, E. Climent-Pascual, M.T. Pérez-Prior, B. Levenfeld, A. Varez, M.I. Sobrados and J. Sanz. “Aqueous and non-aqueous Li+/H+ ion exchange in Li0.44La0.52TiO3 Perovskites”, Advanced Powder Technology. 28(2), 514 – 520 (2017).
- A. Thiam, C. Iojoiu, JC. Leprêtre and JY. Sanchez. “Lithium salts based on a series of new anilinyl-perfluorosulfonamide salts and their polymer electrolytes”, Journal of Power Sources. 364, 138147 (2017).
- M.E. Sotomayor, B. Levenfeld, A. Várez and J. Sanz. “Study of the La1/2+1/2xLi1/2-1/2xTi1-xAlxO3 (0 ≤ x ≤ 1) solid solution. A new example of percolative system in fast ion conductors”, Journal of Alloys and Compounds. 720, 460 – 465 (2017).
- C.S. Martínez-Cisneros, C. Antonelli, B. Levenfeld, A. Varez and J.Y. Sanchez. “Sodium polymer electrolytes composed of sulfonated polysulfone and macromolecular/molecular solvents for Na-batteries”Electrochimica Acta. 245, 807 – 813 (2017).
- M.T. Pérez-Prior, N. Ureña, M. Tannenberg, C. del Río and B. Levenfeld. “DABCO‐functionalized polysulfones as anion‐exchange membranes for fuel cell applications: Effect of crosslinking”, Journal of Polymer Science, Part B: Polymer Physics. 55, 1326 – 1336 (2017).
- A.M. Martos, M. Biasizzo, F. Trotta, C. del Río, A. Várez and B. Levenfeld. “Synthesis and characterization of sulfonated PEEK-WC-PES copolymers for fuel cell proton exchange membrane application”. European Polymer Journal, 93, 390 – 402 (2017).
- C. de la Torre-Gamarra, G.B. Appetecchi, U. Ulissi, A. Varzi, A. Varez and S. Passerini. “Na3Si2Y0.16Zr1.84PO12-ionic liquid hybrid electrolytes: an approach for realizing solid-state sodium-ion batteries”, Journal of Power Sources. 383, 157 – 163 (2017).
Year 2016
- B. Arias-Serrano, M.E. Sotomayor, A. Várez, B. Levenfeld, H. Monzón, M.A. Laguna Bercero and A. Larrea. “High performance Ni-YSZ thin-walled microtubes for anode-supported solid oxide fuel cells obtained by powder extrusion moulding..” RSC Advances. 6, 19007 – 19015 (2016).
- J. Gutiérrez-López, N. Masó, B. Levenfeld, A. Várez and A. R. West. “Electrical and magnetic properties of NiZn ferrite prepared by conventional and solar sintering.” Journal of the American Ceramic Society. 9(7), 2327 – 2333 (2016).
- C.S. Martinez-Cisneros, B. Levenfeld, A. Varez and J.Y. Sanchez. “Development of sodium-conducting polymer electrolytes: comparison between film-casting and films obtained via green processes”, Electrochimica Acta. 192, 456 – 466 (2016).
- E. Garcia-Gonzalez, E. Urones, A. Varez and J. Sanz. “Unravelling the complex nanostructure of La0.5−xLi0.5−xSr2xTiO3 Li ionic conductors”, Dalton Transactions. 45, 7148 – 7157 (2016).
- C.S. Martinez-Cisneros, C. Antonelli, B. Levenfeld, A. Varez, J.Y. Sanchez. “Evaluation of polyolefin-based macroporous separators for high temperature Li-ion batteries”, Electrochimica Acta. 216, 68 – 78 (2016).
- O. Danyliv, C. Iojoiu, S. Lyonnard, N. Sergent, E. Planes and JY. Sanchez. Macromolecules. 49(11), 4164 4177 (2016)
- M.E. Sotomayor, B.I. Arias-Serrano, J. Ciruelos, A.Várez, and B. Levenfeld. “Porous Ni-YSZ planar anodes by powder extrusion moulding employing PMMA as pore former”, Powder Metallurgy. 59(4), 281 – 287 (2016).
- M. Bolloli, C.Antonelli, Y. Molméret, F. Alloin, C. Iojoiu and J-Y.Sanchez. “ Nanocomposite poly(vynilidene fluoride)/nanocrystalline cellulose porous membranes as separators for lithium-ion batteries”, Electrochimica Acta. 214, 38-48 (2016).
- O. Danyliv, C. Gueneau, C. Iojoiu , L. Cointeaux, A. Thiam, S. Lyonnard and J-Y. Sanchez. “Polyaromatic ionomers with a highly hydrophobic backbone and perfluorosulfonic acids for PEMFC”, Electrochimica Acta, 214, 182-191 (2016).
- O. Danyliv, C. Iojoiu, V. Barbier, V. Martin and J-Y. Sanchez. “Aromatic ionic monomer bearing perfluorosulfonate moiety and its polycondensation toward high performance superacid ionomers”, Journal Of Fluorine Chemistry, 189, 43-50 (2016).
Year 2015
- GutiérrezLópez, B. Levenfeld, A. Várez, J. Y. Pastor, I. Cañadas, J. Rodríguez. “Study of densification, mechanical and magnetic properties of Ni-Zn ferrites sintered in a solar furnace.”, Ceramics International. 41(5), 6534 – 6541 (2015).
- A.M. Martos, M. Herrero, A. Várez and B. Levenfeld. “Synthesis and characterization of new membranes based on sulfonated polysulfone/Zn,Al-heptamolibdate LDH.” Materials Letters. 152, 125 – 127 (2015).
- M.T. Pérez Prior, A. Várez and B. Levenfeld. “Synthesis and characterization of benzimidazolium-functionalized polysulfones as anion-exchange membranes” Journal of Polymer Science Part A: Polymer Chemistry. 53(20), 2363 – 2373 (2015).
- M.T. Pérez Prior, T. García-García, A. Várez and B. Levenfeld. “Preparation and characterization of ammonium-functionalized polysulfone/Al2O3 composite membranes” Journal of Materials Science. 50(17), 5893 – 5903 (2015).
- M.J. Martínez-Morlanes, A.M. Martos, A. Várez and B. Levenfeld. “Synthesis and characterization of novel hybrid polysulfone/silica membranes doped with phosphomolybdic acid for fuel cell applications.” Journal of Membrane Science. 492, 371 – 379 (2015).
- M. Bolloli, F. Alloin, J. Kalhoff, D. Bresser, S. Passerini, P. Judeinstein, J-C. Lepretre and J-Y. Sanchez.” Effect of carbonates fluorination on the properties of LiTFSI-based electrolytes for Li-ion batteries”, Electrochimica Acta. 161, 159-170 (2015).
- T. Godet-Bar, J-C. Leprêtre, O. Le Bacq, J-Y. Sanchez, A. Deronzier and A. Pasturel. “Electrochemical and ab initio investigations to design a new phenothiazine based organic redox polymeric material for metal-ion battery cathodes”, Physical Chemistry Chemical Physics. 17(38), 25283-25296 (2015).
- D. Karabelli, J-C. Leprêtre, L. Dumas, S. Rouif, D. Portinha, E. Fleury and J-Y Sanchez. “Crosslinking of poly(vinylene fluoride) separators by gamma-irradiation for electrochemical high power charge applications”, Electrochimica Acta. 169, 32-36 (2015).
- M. Bolloli, J. Kalhoff, F. Alloin, D. Bresser, Le. MLP, B. Langlois, S. Passerini and J-Y. Sanchez. “Fluorinated Carbamates as Suitable Solvents for LiTFSI-Based Lithium-Ion Electrolytes: Physicochemical Properties and Electrochemical Characterization” Journal of Physical Chemistry C, 119(39), 22404-22414 (2015).
- A. M. Martos, JY. Sanchez, A. Várez and B.Levenfeld. : “Electrochemical and structural characterization of sulfonated polysulfone.” Polymer Testing. 45, 185 – 193 (2015).