12 documents found, page 1 of 2
Lithium-ion battery high performance cathode electrode based on LiFePO4 and the...
Monteiro, Inês F.; Pinto, Rafael S.; Silva, Maria M.; Fidalgo-Marijuan, Arkaitz; Costa, Carlos Miguel Silva; Lanceros-Mendez, S.The critical issue of thermal runaway events in lithium-ion batteries (LIBs) is recognized as a primary cause of battery-related accidents. Despite ongoing efforts to enhance LIB safety, challenges persist due to varying chemical compositions, states of charge, and conditions of use across different batteries. To advance battery safety and considering cost and practicality, this research introduces a novel cath...
Optimized printed cathode electrodes for high performance batteries
Gonçalves, Renato Ferreira; Dias, Pedro; Hilliou, L.; Costa, Pedro; Silva, Maria M.; Costa, Carlos Miguel Silva; Corona-Galván, SergioIncreasing mobility, sensing, and interconnection needs is driving the need for low cost and environmental friendly energy storage systems, and therefore, printed batteries represent one of the most appealing solutions. To identify materials‐processing conditions–performance relationships to design improved screen‐printed batteries, the effects of the ink preparation method and the chemical structure of the pol...
Direct-Ink-Writing of electroactive polymers for sensing and energy storage app...
Pinto, Rafael Santos; Serra, João P.; Barbosa, João C.; Gonçalves, Renato Ferreira; Silva, Maria M.; Lanceros-Méndez, S.; Costa, Carlos Miguel SilvaConsidering the high levels of materials used in the fields of electronics and energy storage systems, it is increasingly necessary to take into consideration environmental impact. Thus, it is important to develop devices based on environmentally friendlier materials and/or processes, such as additive manufacturing techniques. In this work, poly(vinylidene fluoride) (PVDF) and poly(vinylidene fluoride-co-hexafl...
Poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene): A new binder ...
Barbosa, João C.; Pinto, Rafael S.; Hilliou, L.; Silva, Maria M.; Costa, Carlos M.; Gonçalves, Renato; Lanceros-Méndez, S.The growing interest in printable batteries leads to the necessity of developing new and more efficient materials that meet the required processability and performance characteristics. In this work, a poly(vinylidene fluoride-trifluoroethylenechlorofluoroethylene) (P(VDF-TrFE-CFE)) terpolymer has been used for the first time as a polymer binder for lithium-ion battery cathodes and their electrochemical characte...
Solar spectral management with electrochromic devices including PMMA films dope...
Cardoso, Marita A.; Correia, Sandra F. H.; Gonçalves, Helena M. R.; Pereira, Rui F. P.; Pereira, Sónia; Maria, Teresa M. R.; Silva, Maria M.The technological potential of poly(methyl methacrylate) (PMMA)-based composite films doped with lanthanide-doped sol–gel derived ionosilicas (IS-Ln) previously proposed for luminescent down-shifting (LDS) and luminescent solar concentrator (LSC) layers connected to photovoltaic (PV) cells is extended here to electrochromic devices (ECDs), targeting the fabrication of single energy harvesting/conversion/managem...
Highly Conducting Bombyx mori Silk Fibroin-Based Electrolytes Incorporating Gly...
Fernandes, Tânia C. D.; Rodrigues, Helena M. R.; Paz, Filipe A. A.; Sousa, Joana F. M.; Valente, Artur J. M.; Silva, Maria M.; Bermudez, Verónica de ZeaGreen, transparent and flexible electrolyte films composed of a Bombyx mori silk fibroin (SF) host biopolymer doped with glycerol (G), dimethyl sulfoxide (DMSO, D) and 1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim]PF6) ionic liquid (IL), were synthesized. The materials were represented by the notation SF@GD@ILx (x = 15, 20 and 30 is the mass ratio of SF/[Bmim]PF6 in %). SF@, SF@G, SF@D and SF@GD sample...
Highly Conducting Bombyx mori Silk Fibroin-Based Electrolytes Incorporating Gly...
Fernandes, Tânia C. D.; Gonçalves, Helena M R; Paz, Filipe A. A.; Sousa, Joana F. M.; Valente, Artur J. M.; Silva, Maria M.; Zea Bermudez, Verónica deGreen, transparent and flexible electrolyte films composed of a Bombyx mori silk fibroin (SF) host biopolymer doped with glycerol (G), dimethyl sulfoxide (DMSO, D) and 1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim]PF6) ionic liquid (IL), were synthesized. The materials were represented by the notation SF@GD@ILx (x = 15, 20 and 30 is the mass ratio of SF/[Bmim]PF6 in %). SF@, SF@G, SF@D and SF@GD sample...
Plasma-treated Bombyx mori cocoon separators for high-performance and sustainab...
Pereira, Rui Francisco Gonçalves Pinto Fernandes; Gonçalves, Renato; Rodrigues, Helena; Correia, Daniela M.; Costa, Carlos Miguel Silva; Silva, Maria M.The success of lithium ion batteries (LIBs) and their unique advantages for electrochemical energy storage have speed up research in this field. A critical component of LIBs is the separator. Here, Bombyx mori silk cocoon separators have been treated with oxygen (O2) and nitrogen (N2) plasmas at different exposure times. The goal was to improve the electrochemical characteristics of these natural separators wit...
Novel highly luminescent amine-functionalized bridged silsesquioxanes
Pereira, Rui F. P.; Nunes, Sílvia C.; Toquer, Guillaume; Cardoso, Marita A.; Valente, Artur J. M.; Ferro, Marta C.; Silva, Maria M.; Carlos, Luís D.Amine-functionalized bridged silsesquioxanes (BSs) were synthesized from bis[(3-trimethoxysilyl)propyl] amine via a solvent-mediated route. BS-1 and BS-2 were obtained at neutral pH with sub- and stoichiometric amounts of water, respectively, and high tetrahydrofuran content. BS-3 was prepared with hyperstoichiometric water concentration, high tetrahydrofuran content, and hydrochloric acid. BS-4 was synthesized...
Novel Highly Luminescent Amine-Functionalized Bridged Silsesquioxanes
Pereira, Rui F. P.; Nunes, Sílvia C; Toquer, Guillaume; Cardoso, Marita A; Valente, Artur J. M.; Ferro, Marta C.; Silva, Maria M.; Carlos, Luís D.Amine-functionalized bridged silsesquioxanes (BSs) were synthesized from bis[(3-trimethoxysilyl)propyl] amine via a solvent-mediated route. BS-1 and BS-2 were obtained at neutral pH with sub- and stoichiometric amounts of water, respectively, and high tetrahydrofuran content. BS-3 was prepared with hyperstoichiometric water concentration, high tetrahydrofuran content, and hydrochloric acid. BS-4 was synthesized...