Development and study of nanostructured graphite for use in lithium ion batteries and capacitors

• Grant number: 11/10934-5
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: August 01, 2011
• End date: October 31, 2011
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Jose Mauricio Rosolen
• Grantee: Juliana Colombo de Lima da Cunha
• Host Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil

Abstract

This project has as main objective the development of nanostructured mineral graphite and "charcoal" by the chemical vapor deposition technique (CVD), aiming their use as electrodes for lithium ion batteries and capacitors. Nanostructuring is the formation of carbon nanostructures (carbon nanotubes with or without nitrogen) on the basal plane of graphite with different grain sizes and morphologies. The samples will be characterized with scanning electron microscopy (SEM) and adsorption isotherms. For the electrochemical investigation electrodes with binder will be prepared and will subsequently be submitted to cycles of charge/discharge and cyclic voltammetry to identify relevant parameters for use in electrochemical devices of interest. (AU)