Finegan, D P*; Cooper, S J*; Tjaden, B*; Taiwo, O O*; Gelb, J*; Hinds, G; Brett, D J L*; Shearing, P R* (2016) Characterising the structural properties of polymer separators for lithium-ion batteries in 3D using phase contrast X-ray microscopy. J. Power Sources, 333. pp. 184-192.

Full text not available from this repository.

Abstract

Separators are an integral component for optimising performance and safety of lithium-ion batteries. Phase contrast X-ray tomography is used here to capture the microstructures of commercial tri-layer, monolayer, 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 correlated with their effect on safety and rate capability of cells.

Item Type:	Article
Subjects:	Advanced Materials Advanced Materials > Fuels Cells
Identification number/DOI:	10.1016/j.jpowsour.2016.09.132
Last Modified:	02 Feb 2018 13:13
URI:	http://eprintspublications.npl.co.uk/id/eprint/7254

Actions (login required)

View Item