Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/48003
Título: | A flexible Li-ion battery with design towards electrodes electrical insulation |
Autor(es): | Vieira, E. M. F. Ribeiro, J. F. Sousa, R. Correia, J. H. Gonçalves, L. M. |
Palavras-chave: | Design Flexible Li-ion batteries Electrical insulation MEMS systems |
Data: | 2016 |
Editora: | IOP Publishing |
Revista: | Journal of Micromechanics and Microengineering |
Resumo(s): | The application of micro electromechanical systems (MEMS) technology in several consumer electronics leads to the development of micro/nano power sources with high power and MEMS integration possibility. This work presents the fabrication of a flexible solid-state Li-ion battery (LIB) (~2.1 μm thick) with a design towards electrodes electrical insulation, using conventional, low cost and compatible MEMS fabrication processes. Kapton® substrate provides flexibility to the battery. E-beam deposited 300 nm thick Ge anode was coupled with LiCoO2/LiPON (cathode/solid-state electrolyte) in a battery system. LiCoO2 and LiPON films were deposited by RF-sputtering with a power source of 120W and 100W, respectively. LiCoO2 film was annealed at 400 °C after deposition. The new design includes Si3N4 and LiPO thin-films, providing electrode electrical insulation and a battery chemical stability safeguard, respectively. Microstructure and battery performance were investigated by scanning electron microscopy, electric resistivity and electrochemical measurements (open circuit potential, charge/discharge cycles and electrochemical impedance spectroscopy). A rechargeable thin-film and lightweight flexible LIB using MEMS processing compatible materials and techniques is reported. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/48003 |
DOI: | 10.1088/0960-1317/26/8/084002 |
ISSN: | 0960-1317 |
e-ISSN: | 1361-6439 |
Versão da editora: | http://iopscience.iop.org/article/10.1088/0960-1317/26/8/084002 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | DEI - Artigos em revistas internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Vieira_2016_J._Micromech._Microeng._26_084002.pdf Acesso restrito! | 940,8 kB | Adobe PDF | Ver/Abrir |