RE:Germany's best ceramic separator manufacturer: FREUDENBERGLaughable. You must think people can't read
"Step1: A thin polyester nonwoven base is manufactured in a wet laid process. The thermal stability of the separator is guaranteed by carefully selecting adequate microfibers. "
A polyester base is inferior to the Separion with out the polyester base. Everyone knows that. I looked for their temperature specks, but have not found the yet. I would be willing to bet they are lower than the Separion ?
https://separators.freudenberg-pm.com/products
All the specks are listed except temperature. Why is that ?
What makes Separion superior is it withstands a higher temperature than competitors. During cell manufacture, the cell can be dried at a hifher temp. Thus lowering the moisture content. Lower moisture means less side chemical reactions which are detrimental. Less side reactions = more cycles (longer life). Also higher temp separator allows higher energy density electrodes to operate safely.