Battery separator design requirements and technology improvements for the modern lead/acid battery

The worldwide trends in battery-separator technology and usage are briefly reviewed and updated. A review is given of the separator design requirements of importance to the battery engineer. Finally, preliminary data are presented from the Entek/Cookson Entek research and development programme to characterize and improve the raw materials used in the manufacture of polyethylene separators, and to characterize the properties of the finished product.