| 摘要 |
A separator (1) for interposing between the positive and negative electrode plates (5) in a battery cell comprises a rectangular sheet of material comprising glass and organic fibres having a region (3, 4)extending parallel to and adjacent at least one edge which is of increased hardness or toughness with respect to the remainder (2) of the separator. The region of increased hardness or toughness may include fibres bonded more closely together than those fibres in the remainder of the separator. |
