Nonwoven fabric, fiber and electrochemical cell

摘要

A fleece material, especially as a separator in electrochemical cells and batteries comprises functional fibers of at least one fiber material with intrinsic material that is chemically active or can be activated in alkaline media. The material is incorporated into surface regions of the fiber volumes that are effective in contact with the medium. Independent claims are also included for the following: (A) A fiber as above;and (B) Electrochemical cells, especially batteries having a separator as above.