Research data on advanced electrolytes for high-voltage supercapacitors

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Venâncio, Raissa; Zanin, Hudson Giovani; Silva, Leonardo Morais da; Silva, Débora Ariana Corrêa da; Silva, Isabel Amaral; Siqueira, Leonardo José Amaral de; Silva, Isabela Galantini; Pinzón Cárdenas, Manuel Jonathan; Vicentini, Rafael Felipe, 2026, "Research data on advanced electrolytes for high-voltage supercapacitors", https://doi.org/10.25824/redu/ULCTFM, Repositório de Dados de Pesquisa da Unicamp, V1

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Description	This dataset provides experimental, computational, and operando data generated by the Thesis intitled: "Advanced electrolytes for high-voltage supercapacitors: an integrated electrochemical-operando approach" presented in 2025-07-28. The research focuses on ionic liquids (ILs), deep eutectic solvents (DESs), and hybrid organic–ionic mixtures, with the aim of enhancing energy density, operating voltage, and safety. Data include cyclic voltammetry, galvanostatic charge–discharge, electrochemical impedance spectroscopy, molecular dynamics simulations, and operando characterizations (Raman, mass spectrometry, and FTIR). The dataset covers charge storage mechanisms, ion transport dynamics, and interfacial processes in multi-scale porous carbon electrodes, using [N1114][NTf2], Na-based electrolytes, and TEABF4:PC as main electrolytes. Modeling results using the Modified Generic Electrochemical (MGE) model and equivalent-circuit analysis are also included. Altogether, the dataset supports a comprehensive understanding of the structure and property performance relationship of IL- and DES-based electrolytes, providing valuable insights for the design of safe, efficient, and sustainable next-generation supercapacitors. (2025-10-01)
Subject	Chemistry; Engineering; Other
Keyword	Ionic liquids, Supercapacitors, Energy storage, Eutectic solvents, Electrochemical characterization, Molecular dynamics, Mass spectrometry, Advanced electrolytes
Related Publication	Venâncio, R., da Silva, D. A., Borges, L. O., Silva, I. A., Da Silva, L. M., Doubek, G., ... & Zanin, H. (2025). High performance of supercapacitors containing an ionic liquid electrolyte by means of electrochemical and computational studies. Electrochimica Acta, 146569. doi: https://doi.org/10.1016/j.electacta.2025.146569
License/Data Use Agreement	CC BY-NC 4.0

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	IL_OE mixture results_ch02.zip ZIP Archive - 12.4 MB Published Feb 26, 2026 1 Download MD5: 4d121856dfe07dcdd089ec0952fadd9e Conjunto de dados contendo resultados eletroquímicos e de caracterização de misturas de líquidos iônicos com eletrólitos orgânicos em 3 proporções, com foco na avaliação do efeito da composição nas propriedades de transporte iônico, estabilidade e desempenho eletroquímico.	Access File ???file.accessBtn.header.access??? Public Download Options ZIP Archive ???file.accessBtn.header.metadata??? Data File Citation EndNote XML RIS BibTeX
	LEIA-ME.txt Plain Text - 1.6 KB Published Feb 26, 2026 1 Download MD5: df834037382797d37c9075c174bc360e Documento descritivo que apresenta a organização do diretório, a correspondência entre os arquivos e os capítulos da tese, bem como instruções para interpretação dos dados e identificação das formulações (Aba 1 – Legenda).	Access File ???file.accessBtn.header.access??? Public Download Options Plain Text ???file.accessBtn.header.metadata??? Data File Citation EndNote XML RIS BibTeX
	Na_based results_ch03.zip ZIP Archive - 83.8 MB Published Feb 26, 2026 1 Download MD5: 7ccd2f87acefea5fa0943896a558fddf Conjunto de dados contendo resultados eletroquímicos e de caracterização de sistemas baseados em sódio, incluindo análise de janela de estabilidade, mecanismos de armazenamento de carga e desempenho em dispositivos.	Access File ???file.accessBtn.header.access??? Public Download Options ZIP Archive ???file.accessBtn.header.metadata??? Data File Citation EndNote XML RIS BibTeX
	Neat IL results_ch01.zip ZIP Archive - 3.1 MB Published Feb 26, 2026 1 Download MD5: 08c59dc9f401d53662dc48cc337e1e78 Conjunto de dados contendo resultados eletroquímicos e de caracterização físico-química de líquidos iônicos puros, incluindo análise de estabilidade eletroquímica, desempenho capacitivo e propriedades estruturais.	Access File ???file.accessBtn.header.access??? Public Download Options ZIP Archive ???file.accessBtn.header.metadata??? Data File Citation EndNote XML RIS BibTeX

Citation Metadata

Persistent Identifier	doi:10.25824/redu/ULCTFM
Publication Date	2026-02-26
Title	Research data on advanced electrolytes for high-voltage supercapacitors
Author	Venâncio, Raissa (Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Elétrica e de Computação.) - ORCID: https://orcid.org/0000-0003-0828-336X Zanin, Hudson Giovani (Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Elétrica e de Computação.) - ORCID: https://orcid.org/0000-0002-7295-4378 Silva, Leonardo Morais da - ORCID: https://orcid.org/0000-0002-1255-4911 Silva, Débora Ariana Corrêa da - ORCID: https://orcid.org/0000-0001-5772-2408 Silva, Isabel Amaral (Universidade Federal de São Paulo) - ORCID: https://orcid.org/0009-0009-3842-4603 Siqueira, Leonardo José Amaral de - ORCID: https://orcid.org/0000-0002-1187-6441 Silva, Isabela Galantini (Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Elétrica e de Computação.) - ORCID: https://orcid.org/0009-0003-8739-091X Pinzón Cárdenas, Manuel Jonathan - ORCID: https://orcid.org/0000-0003-0300-1837 Vicentini, Rafael Felipe (Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Elétrica e de Computação.) - ORCID: https://orcid.org/0000-0001-6906-8669
Point of Contact	Use email button above to contact. Vicentini, Rafael Felipe (Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Elétrica e de Computação.)
Description	This dataset provides experimental, computational, and operando data generated by the Thesis intitled: "Advanced electrolytes for high-voltage supercapacitors: an integrated electrochemical-operando approach" presented in 2025-07-28. The research focuses on ionic liquids (ILs), deep eutectic solvents (DESs), and hybrid organic–ionic mixtures, with the aim of enhancing energy density, operating voltage, and safety. Data include cyclic voltammetry, galvanostatic charge–discharge, electrochemical impedance spectroscopy, molecular dynamics simulations, and operando characterizations (Raman, mass spectrometry, and FTIR). The dataset covers charge storage mechanisms, ion transport dynamics, and interfacial processes in multi-scale porous carbon electrodes, using [N1114][NTf2], Na-based electrolytes, and TEABF4:PC as main electrolytes. Modeling results using the Modified Generic Electrochemical (MGE) model and equivalent-circuit analysis are also included. Altogether, the dataset supports a comprehensive understanding of the structure and property performance relationship of IL- and DES-based electrolytes, providing valuable insights for the design of safe, efficient, and sustainable next-generation supercapacitors. (2025-10-01)
Subject	Chemistry; Engineering; Other
Keyword	Ionic liquids (Ei (Compendex)) Supercapacitors Energy storage Eutectic solvents Electrochemical characterization Molecular dynamics Mass spectrometry Advanced electrolytes
Related Publication	Venâncio, R., da Silva, D. A., Borges, L. O., Silva, I. A., Da Silva, L. M., Doubek, G., ... & Zanin, H. (2025). High performance of supercapacitors containing an ionic liquid electrolyte by means of electrochemical and computational studies. Electrochimica Acta, 146569. doi: https://doi.org/10.1016/j.electacta.2025.146569 https://doi.org/10.1016/j.electacta.2025.146569
Contributor	Funder : Agência Nacional do Petróleo, Gás Natural e Biocombustíveis. 23259-5
Funding Information	No Funder: 0000
Depositor	Venâncio, Raissa
Deposit Date	2025-10-01
Declarações obrigatórias sobre ética e privacidade	o projeto que gerou os dados foi aprovado pelo Comite de Ética em Pesquisa da Unicamp ou não envolve questões que requeiram tal aprovação; os dados que serão depositados estão de acordo com a LGPD (Lei Geral de Proteção de Dados)

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