公开(公告)号：EP1497872A2

公开(公告)日：2005-01-19

申请号：EP03722418.5

申请日：2003-04-08

申请人： DARAMIC, INC.

发明人： DEITERS, Jörg ,  IHMELS, Klaus, Heinrich

IPC分类号： H01M2/16

CPC分类号： H01M2/1653 ,  H01M10/06

摘要： The invention relates to a thermoplastic polymer-based battery separator, which contains a compound of formula R(OR1)n (COOMx+1/x)m. In said formula, R represents a non-aromatic hydrocarbon group comprising between 10 and 4,200 carbon atoms, which can be interrupted by oxygen atoms, R1 represents H, -(CH2)kCOOMx+1/x or - (CH2)k-SO3Mx+1/x, whereby k stands for 1 or 2, M represents an alkali or earth alkaline metal ion, H+ or NH4+, whereby not all variables of M are defined simultaneously as H+, n stands for 0 or 1, m stands for 0 or a whole number from 10 to 1,400 and x stands for 1 or 2. The ratio of oxygen atoms to carbon atoms in the compound according to the aforementioned formula ranges between 1:1.5 and 1:30 and n and m cannot simultaneously represent zero.

公开(公告)号：EP1090433B1

公开(公告)日：2002-04-03

申请号：EP98938619.8

申请日：1998-06-23

申请人： DARAMIC, INC.

发明人： BÖHNSTEDT, Werner ,  DEITERS, Jörg ,  IHMELS, Klaus, Heinrich ,  RUHOFF, Jürgen

IPC分类号： H01M2/16 ,  H01M10/34 ,  H01M10/06

CPC分类号： H01M2/1653 ,  H01M10/06 ,  H01M10/342 ,  H01M2300/0011 ,  Y02E60/126 ,  Y10T428/24999

摘要： The invention relates to microporous battery separators on the basis of a substantially homogeneous mixture made of a thermoplastic polymer, an inert filler and possibly a softener. The separators contain more than 20 volume % pyrogenic silicic acid and possibly one or more additional fillers, so that the total filler content is more than 60 but no more than 82 volume %. The above separators are especially suitable for producing sealed storage batteries.

公开(公告)号：EP1090433A1

公开(公告)日：2001-04-11

申请号：EP98938619.8

申请日：1998-06-23

申请人： DARAMIC, INC.

发明人： BÖHNSTEDT, Werner ,  DEITERS, Jörg ,  IHMELS, Klaus, Heinrich ,  RUHOFF, Jürgen

IPC分类号： H01M2/16 ,  H01M10/34 ,  H01M10/06

CPC分类号： H01M2/1653 ,  H01M10/06 ,  H01M10/342 ,  H01M2300/0011 ,  Y02E60/126 ,  Y10T428/24999

摘要： The invention relates to microporous battery separators on the basis of a substantially homogeneous mixture made of a thermoplastic polymer, an inert filler and possibly a softener. The separators contain more than 20 volume % pyrogenic silicic acid and possibly one or more additional fillers, so that the total filler content is more than 60 but no more than 82 volume %. The above separators are especially suitable for producing sealed storage batteries.