Characterization of lithium-based solid polymer electrolytes

• Autor(es): Barbosa, P. C. ; Rodrigues, L. C. ; Silva, Maria Manuela ; Smith, Michael John
• Data: 2009
• Identificador Persistente: http://hdl.handle.net/1822/11607
• Origem: RepositóriUM - Universidade do Minho
• Assunto(s): Solid polymer electrolyte; Lithium salt; PEO/siloxane hybrids
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

Sol-gel derived poly(oxyethylene)/siloxane hybrids doped with lithium hexafluoroantimonate, LiSbF6, have been prepared. Compositions of these novel xerogel electrolytes were identified using the conventional d-U(2000)nLiSbF6 notation, (where n is the molar ratio of oxyethylene moieties per Li+ ion) and samples with n between ∞ and 2.5 were characterized by conductivity measurements, cyclic voltammetry at a gold microelectrode and thermal analysis. The electrolyte films produced were obtained as transparent and amorphous monoliths with encouraging electrochemical and thermal properties.