γ-LiAlO2, Al2O3and MgO were used as fillers in a PVdF-HFP polymer matrix to form self-standing, intrinsically porous separators for lithium-ion batteries. These separators can be hot-laminated onto the electrodes without losing their ability to adsorb liquid electrolyte. The electrochemical stability of the separators was tested by constructing half-cells with the configuration: Li/fibre-glass/filler-based separator/electrode. MgO-based separators were found to work well with both positive and negative electrodes. An ionic conductivity of about 4×10-4S cm-1was calculated for the MgO-based separator containing 40% 1 M solution of LiPF6in an EC/DMC 1:1 solvent. Self-standing, lithium-ion cells were constructed using the MgO-based separator and the resulting battery performance evaluated in terms of cyclability, power and energy density. © 2002 Elsevier Science Ltd. All rights reserved.
All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)
Prosini, P. P., Villano, P., & Carewska, M. (2002). A novel intrinsically porous separator for self-standing lithium-ion batteries. Electrochimica Acta, 48(3), 227 - 233. https://doi.org/10.1016/S0013-4686(02)00601-1