Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/8674
Título: | Preparation of hybrid organic-inorganic materials based on a di-ureasil matrix doped with lithium bis(trifluoromethanesulfonyl)imide |
Autor(es): | Barbosa, P. C. Rodrigues, L. C. Silva, Maria Manuela Smith, Michael John |
Palavras-chave: | Di-ureasils Sol-gel process Polymer electrolytes Complex impedance spectroscopy |
Data: | Jan-2008 |
Editora: | Elsevier 1 |
Revista: | Journal of Power Sources |
Citação: | "Journal of Power Sources". ISSN 0378-7753. 180:1 (2008) 607-611. |
Resumo(s): | In this presentation we describe the preparation of solvent-free solid polymer electrolytes (SPEs) by the sol-gel route with the incorporation of controlled quantities of lithium bis(trifluoromethanesulfonyl) imide (LiTFSI) into the host matrix. The host framework of these xerogels, designated as di-ureasils and represented by d-U(900), contains oxyethylene oligomers with about 15 repeat units bonded at each end to a siliceous backbone through urea bridging links. Electrolytes were characterized by ionic conductivity measurements, cyclic voltammetry at a gold microelectrode and thermal analysis. The results obtained reveal that these hybrid materials are completely amorphous and exhibit appropriate electrochemical characteristics for a variety of applications. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/8674 |
DOI: | 10.1016/j.jpowsour.2008.01.057 |
ISSN: | 0378-7753 |
Versão da editora: | http://www.elsevier.com/wps/find/journaldescription.cws_home/504093/description |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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JPowerS.pdf | Main article with figures | 2,11 MB | Adobe PDF | Ver/Abrir |