| 摘要 |
The present invention relates to electrical separators, especially for use in lithium high energy batteries, and to a process for making them. Separators for use in lithium high energy batteries have to have a very low weight and a very low thickness. It has been found that, surprisingly, such separators having a weight of less than 50 g/m2 and a thickness of less than 35 μm are preparable by applying a ceramic coating to a polymeric web less than 30 μm in thickness, these separators being very useful in lithium high energy batteries when pyrogenic oxides of the elements Al, Si and/or Zr are used as a particulate pore-forming component.
|
