Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/43514
Título: | Optimization of filler type within poly(vinylidene fluoride-co-trifluoroethylene) composite separator membranes for improved lithium-ion battery performance |
Autor(es): | Pereira, João Pedro Nunes Kundu, Manab Gören, Attila Silva, Maria Manuela Costa, C. M. Liu, Lifeng Lanceros-Méndez, S. |
Palavras-chave: | Nano-structures Electrical properties Physical properties Chemical properties A. Nano-structures B. Chemical properties B. Electrical properties B. Physical properties |
Data: | 2016 |
Editora: | Elsevier 1 |
Revista: | Composites Part B: Engineering |
Citação: | Nunes-Pereira, J., Kundu, M., Goren, A., Silva, M. M., Costa, C. M., Liu, L. F., & Lanceros-Mendez, S. (2016). Optimization of filler type within poly(vinylidene fluoride-co-trifluoroethylene) composite separator membranes for improved lithium-ion battery performance. Composites Part B-Engineering, 96, 94-102. doi: 10.1016/j.compositesb.2016.04.041 |
Resumo(s): | Porous poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE)) based composite membranes filled with clays (montmorillonite, MMT), zeolites (Y zeolite, NaY), ceramics (barium titanate, BaTiO3) and carbonaceous (multiwalled-carbon nanotubes, MWCNT) fillers were prepared by solvent casting at room temperature. It is shown that, the thermal, mechanical and electrochemical properties of the membranes are not significantly affected by the presence of the fillers. On the other hand, the overall electrochemical behavior of the separator membranes improves with the inclusion of fillers, with respect to the pure polymer, as shown by the increase of the room temperature ionic conductivity for the composite membranes. Furthermore, cathodic half-cells based on composite membranes showed higher capacity retention and rate performance after 50 cycles than pristine polymer membranes. It is thus concluded that filler type deeply affects membrane separator performance in lithium-ion batteries, the P(VDF-TrFE) membrane with MMT filler being the one with the best performance among the evaluated fillers. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/43514 |
DOI: | 10.1016/j.compositesb.2016.04.041 |
ISSN: | 1359-8368 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CDF - FCD - Artigos/Papers (with refereeing) CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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result 25.pdf Acesso restrito! | 1,53 MB | Adobe PDF | Ver/Abrir |