摘要 |
A battery separator comprising a web (13) having two opposed faces, each of said faces having a top edge (18) and a bottom edge (17) and at least one of said faces including a plurality of sinusoidal- like ribs (14), at least 75% continuous in extent from said bottom edge to said top edge of said battery separator face and isolated from one another, at least some (14b) of said ribs being nested with an adjacent rib (14c). <IMAGE> |