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Flexible solid-state Li-ion battery using Ge thin film anode and LiCoO2 cathode

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Resumo:Flexible and solid – state Li-ion bat-teries (LIBs) can offer flexibility, lightweight and easy portability in large-scale energy storage, with significantly higher power and long cycle life. The anode is a crucial component affecting the perfor-mance of LIBs. Here, we investigate the electrochem-ical performance of e-beam deposited Ge anode (300 nm thick) coupled with LiCoO2/LiPON (cath-ode/solid-state electrolyte) in a microbattery system fabricated only by PVD techniques. LiCoO2 cathode was deposited by rf-sputtering with 120 W of power source and 17/3 sccm of Ar/O2, respectively. The LIPON was also deposited by rf-sputtering at 100 W of RF power. Microstructure and battery perfor-mance were investigated by scanning electron mi-croscopy (SEM) and electrochemical measurements (open circuit potential (OCP), charge/discharge cycles and electrochemical impedance spectroscopy (EIS).
Autores principais:Vieira, E. M. F.
Outros Autores:Ribeiro, J. F.; Silva, M. M.; Dupont, L.; Correia, J. H.; Goncalves, L. M.
Assunto:Design Flexible Li-ion batteries Ger-manium LIPON electrolyte
Ano:2015
País:Portugal
Tipo de documento:comunicação em conferência
Tipo de acesso:acesso restrito
Instituição associada:Universidade do Minho
Idioma:inglês
Origem:RepositóriUM - Universidade do Minho

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