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Development of High Performance Electrochemical Capacitors Based on Graphene and Ionic Liquids.

Grant number: 13/22748-7
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): May 01, 2014
Effective date (End): July 14, 2020
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
Principal researcher:Roberto Manuel Torresi
Grantee:Vitor Leite Martins
Home Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:09/53199-3 - Molecular recognition and energy storage: fundamental studies concerning geometry, size and synthesis effects on the optimization of the chemical properties of electroactive materials, AP.TEM
Associated scholarship(s):14/14690-1 - Development and improvement of electrochemical capacitors containing ionic liquids as electrolytes, BE.EP.PD

Abstract

The development of new energy storage devices to supply growing for greater security and better performance has been an important point to keep in advance of new portable electronics and electric vehicles. The electrochemical capacitors is part of the class of energy storage devices by presenting a high-energy storage and quick release of this energy, serving as back-up or main device in special cases. To improve its performance, the search for electrodes with higher surface area and better performance and electrolytes with wide electrochemical window has been investigated. Thus, graphene arises as an excellent candidate for electrode material since it is a 2D carbon material that has higher conductivity than copper, very low density, high strength and very high surface area, increasing the capacitance of the electrochemical capacitor. And as electrolyte, ionic liquids are presented as an interesting alternative to conventional solvents, since they have high chemical and thermal stability, negligible vapor pressure (increasing safety of the device), intrinsic ionic conductivity, and, especially, wide electrochemical window, this increases the power of the electrochemical capacitor. Thus, we will establish a route to prepare graphene and electrode production with good physical and electrochemical qualities and study its performance in ionic liquids that have being developed in the group, with wide electrochemical window and good transport property to obtain high electrochemical capacitors performance.

News published in Agência FAPESP Newsletter about the scholarship:
Las baterías a base de soluciones acuosas pueden reemplazar a las convencionales 
Highly concentrated aqueous electrolytes could replace solvents used in conventional batteries 
Baterias baseadas em soluções aquosas podem substituir as convencionais 
Articles published in other media outlets (13 total):
More itemsLess items
Scifi Venture: Highly concentrated aqueous electrolytes could replace solvents used in batteries (29/May/2020)
Daily News: Highly concentrated aqueous electrolytes could replace solvents used in batteries (29/May/2020)
Revolution-Green: Highly concentrated aqueous electrolytes could replace solvents used in conventional batteries (29/Apr/2020)
NCYT Amazings (Espanha): Las baterías a base de soluciones acuosas pueden reemplazar a las convencionales (28/Apr/2020)
Infomediatico: Las baterías a base de soluciones acuosas pueden reemplazar a las convencionales (28/Apr/2020)
Phys.Org (Reino Unido): Highly concentrated aqueous electrolytes could replace solvents used in batteries (27/Apr/2020)
Nanotechnology Now (EUA): Highly concentrated aqueous electrolytes could replace solvents used in batteries (25/Apr/2020)
7thSpace: Highly concentrated aqueous electrolytes could replace solvents used in batteries (25/Apr/2020)
Environmental News Network (EUA): Highly Concentrated Aqueous Electrolytes Could Replace Solvents Used In Conventional Batteries (24/Apr/2020)
Health Medicine Network (EUA): Highly concentrated aqueous electrolytes could replace solvents used in batteries (24/Apr/2020)
Science Codex: Highly concentrated aqueous electrolytes could replace solvents used in batteries (24/Apr/2020)
SciFi News (Reino Unido): Highly concentrated aqueous electrolytes could replace solvents used in batteries (24/Apr/2020)
Scienmag Science Magazine (Reino Unido): Highly concentrated aqueous electrolytes could replace solvents used in batteries (24/Apr/2020)

Scientific publications (17)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
MARTINS, VITOR L.; MANTOVI, PRIMAGGIO SILVA; TORRESI, ROBERTO M. Suppressing early capacitance fade of electrochemical capacitors with water-in-salt electrolytes. Electrochimica Acta, v. 372, MAR 10 2021. Web of Science Citations: 0.
MARTINS, VITOR L.; OBANA, THIAGO T.; TORRESI, ROBERTO M. Electroactivity of 3D conducting polymers in water-in-salt electrolyte and their electrochemical capacitor performance. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, v. 880, JAN 1 2021. Web of Science Citations: 1.
MARTINS, VITOR L.; TORRESI, ROBERTO M. Water-in-salt electrolytes for high voltage aqueous electrochemical energy storage devices. CURRENT OPINION IN ELECTROCHEMISTRY, v. 21, p. 62-68, JUN 2020. Web of Science Citations: 1.
VITOR L. MARTINS; HERBERT R. NEVES; IVONNE E. MONJE; MARINA M. LEITE; PAULO F.M. DE OLIVEIRA; RODOLFO M. ANTONIASSI; SUSANA CHAUQUE; WILLIAM G. MORAIS; EDUARDO C. MELO; THIAGO T. OBANA; BRENO L. SOUZA; ROBERTO M. TORRESI. An Overview on the Development of Electrochemical Capacitors and Batteries – Part I. Anais da Academia Brasileira de Ciências, v. 92, n. 2, p. -, 2020.
VITOR L. MARTINS; HERBERT R. NEVES; IVONNE E. MONJE; MARINA M. LEITE; PAULO F.M. DE OLIVEIRA; RODOLFO M. ANTONIASSI; SUSANA CHAUQUE; WILLIAM G. MORAIS; EDUARDO C. MELO; THIAGO T. OBANA; BRENO L. SOUZA; ROBERTO M. TORRESI. An Overview on the Development of Electrochemical Capacitors and Batteries – part II. Anais da Academia Brasileira de Ciências, v. 92, n. 2, p. -, 2020.
MARTINS, VITOR L.; NEVES, HERBERT R.; MONJE, IVONNE E.; LEITE, MARINA M.; DE OLIVEIRA, PAULO F. M.; ANTONIASSI, RODOLFO M.; CHAUQUE, SUSANA; MORAIS, WILLIAM G.; MELO, EDUARDO C.; OBANA, THIAGO T.; SOUZA, BRENO L.; TORRESI, ROBERTO M. An Overview on the Development of Electrochemical Capacitors and Batteries - part II. Anais da Academia Brasileira de Ciências, v. 92, n. 2 2020. Web of Science Citations: 0.
MARTINS, VITOR L.; NEVES, HERBERT R.; MONJE, IVONNE E.; LEITE, MARINA M.; DE OLIVEIRA, PAULO F. M.; ANTONIASSI, RODOLFO M.; CHAUQUE, SUSANA; MORAIS, WILLIAM G.; MELO, EDUARDO C.; OBANA, THIAGO T.; SOUZA, BRENO L.; TORRESI, ROBERTO M. An Overview on the Development of Electrochemical Capacitors and Batteries - Part I. Anais da Academia Brasileira de Ciências, v. 92, n. 2 2020. Web of Science Citations: 0.
ANTONIO, JADIELSON L. S.; MARTINS, VITOR L.; CORDOBA DE TORRESI, I, SUSANA; TORRESI, ROBERTO M. QCM-D study of electrochemical synthesis of 3D polypyrrole thin films for negative electrodes in supercapacitors. Electrochimica Acta, v. 324, NOV 20 2019. Web of Science Citations: 0.
MARTINS, VITOR L.; TORRESI, ROBERTO M. Ionic liquids in electrochemical energy storage. CURRENT OPINION IN ELECTROCHEMISTRY, v. 9, p. 26-32, JUN 2018. Web of Science Citations: 12.
MARTINS, VITOR L.; TORRESI, ROBERTO M.; RENNIE, ANTHONY J. R. Design considerations for ionic liquid based electrochemical double layer capacitors. Electrochimica Acta, v. 270, p. 453-460, APR 20 2018. Web of Science Citations: 6.
MARTINS, VITOR L.; RENNIE, ANTHONY J. R.; SANCHEZ-RAMIREZ, NEDHER; TORRESI, ROBERTO M.; HALL, PETER J. Improved Performance of Ionic Liquid Supercapacitors by using Tetracyanoborate Anions. CHEMELECTROCHEM, v. 5, n. 4, p. 598-604, FEB 2018. Web of Science Citations: 8.
MARTINS, VITOR L.; RENNIE, ANTHONY J. R.; TORRESI, ROBERTO M.; HALL, PETER J. Ionic liquids containing tricyanomethanide anions: physicochemical characterisation and performance as electrochemical double-layer capacitor electrolytes. Physical Chemistry Chemical Physics, v. 19, n. 25, p. 16867-16874, JUL 7 2017. Web of Science Citations: 10.
MARTINS, VITOR L.; RENNIE, ANTHONY J. R.; LESOWIEC, JUDITH; TORRESI, ROBERTO M.; HALL, PETER J. Using Polymeric Ionic Liquids as an Active Binder in Supercapacitors. Journal of the Electrochemical Society, v. 164, n. 13, p. A3253-A3258, 2017. Web of Science Citations: 2.
RENNIE, ANTHONY J. R.; MARTINS, VITOR L.; SMITH, RACHEL M.; HALL, PETER J. Influence of Particle Size Distribution on the Performance of Ionic Liquid-based Electrochemical Double Layer Capacitors. SCIENTIFIC REPORTS, v. 6, FEB 25 2016. Web of Science Citations: 13.
RENNIE, ANTHONY J. R.; MARTINS, VITOR L.; TORRESI, ROBERTO M.; HALL, PETER J. Ionic Liquids Containing Sulfonium Cations as Electrolytes for Electrochemical Double Layer Capacitors. Journal of Physical Chemistry C, v. 119, n. 42, p. 23865-23874, OCT 22 2015. Web of Science Citations: 23.
MARTINS, VITOR L.; SANCHEZ-RAMIREZ, NEDHER; RIBEIRO, MAURO C. C.; TORRESI, ROBERTO M. Two phosphonium ionic liquids with high Li+ transport number. Physical Chemistry Chemical Physics, v. 17, n. 35, p. 23041-23051, 2015. Web of Science Citations: 20.
SANCHEZ-RAMIREZ, NEDHER; MARTINS, VITOR L.; ANDO, ROMULO A.; CAMILO, FERNANDA F.; URAHATA, SERGIO M.; RIBEIRO, MAURO C. C.; TORRESI, ROBERTO M. Physicochemical Properties of Three Ionic Liquids Containing a Tetracyanoborate Anion and Their Lithium Salt Mixtures. Journal of Physical Chemistry B, v. 118, n. 29, p. 8772-8781, JUL 24 2014. Web of Science Citations: 18.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.