Modeling separator membranes physical characteristics for optimized lithium ion battery performance
作者： D. Miranda , C.M. Costa , A.M. Almeida , S. Lanceros-Méndez
DOI: 10.1016/J.SSI.2015.05.022
关键词: Composite material 、 Tortuosity 、 Separator (electricity) 、 Lithium-ion battery 、 Porosity 、 Materials science 、 Horizontal scan rate 、 Battery system 、 Membrane 、 Ionic conductivity
摘要: Abstract The effect of varying separator membrane physical parameters such as degree porosity, tortuosity and thickness, on battery delivered capacity was studied in order to optimize performance lithium-ion batteries. This achieved by a theoretical mathematical model relating the Bruggeman coefficient with porosity tortuosity. inclusion simulation system does not affect battery. ionic conductivity consequently values obtained at different discharge rates depend value coefficient, which is related membrane. Independently scan rate, optimal above 50% thickness should range between 1 μm 32 μm for improved performance.
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