کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5150052 1497899 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterising the structural properties of polymer separators for lithium-ion batteries in 3D using phase contrast X-ray microscopy
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Characterising the structural properties of polymer separators for lithium-ion batteries in 3D using phase contrast X-ray microscopy
چکیده انگلیسی
Separators are an integral component for optimising performance and safety of lithium-ion batteries; therefore, a clear understanding of how their microstructure affects cell performance and safety is crucial. Phase contrast X-ray microscopy is used here to capture the microstructures of commercial monolayer, tri-layer, and ceramic-coated lithium-ion battery polymer separators. Spatial variations in key structural parameters, including porosity, tortuosity factor and pore size distribution, are determined through the application of 3D quantification techniques and stereology. The architectures of individual layers in multi-layer membranes are characterised, revealing anisotropy in porosity, tortuosity factor and mean pore size of the three types of separator. Detailed structural properties of the individual layers of multi-layered membranes are then related with their expected effect on safety and rate capability of cells.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 333, 30 November 2016, Pages 184-192
نویسندگان
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