公开(公告)号：EP3123538A4

公开(公告)日：2017-12-27

申请号：EP15767879

申请日：2015-03-20

申请人： HOLLINGSWORTH & VOSE CO

发明人： NATESH GUBBI KRISHNAPPA ,  MARCHIGOWDA KRISHNA ,  GIRISHA BASAVARAJU ,  PATCHIGOLLA VENKATA KAMESWARA RAO ,  CLEMENT NICOLAS ,  ASHIRGADE AKSHAY ,  KUMAR SACHIN ,  WERTZ JOHN A ,  ANGUS RICHARD O JR ,  JIANG ZHIPING

IPC分类号： H01M2/14 ,  H01M2/16 ,  H01M2/18 ,  H01M4/14 ,  H01M10/06 ,  H01M10/12

CPC分类号： H01M2/1633 ,  H01M2/1613 ,  H01M2/1646 ,  H01M2/1653 ,  H01M2/1686 ,  H01M2/18 ,  H01M4/14 ,  H01M10/06 ,  H01M10/12

摘要： In some embodiments, a battery separator described herein may comprise a layer having a relatively low apparent density; for example, the density that includes any unoccupied space within the outermost boundaries of the layer may be relatively low. The low apparent density may be attributed to, at least in part, the geometry of the layer. For instance, in some embodiments, the layer may include undulations and/or have at least one non-planar surface (e.g., a corrugated layer; an embossed layer). In some embodiments, a battery comprising a layer having a relatively low apparent density may have desirable properties, including relatively low electrical resistance and/or relatively high capacity. The battery separators described herein may be well suited for a variety of battery types, including lead acid batteries.