公开(公告)号：US20240006719A1

公开(公告)日：2024-01-04

申请号：US18233442

申请日：2023-08-14

申请人： Celgard, LLC

发明人： Xiaomin Zhang ,  Kang Karen Xiao ,  Robert A. Nark ,  Ron E. Smith

IPC分类号： H01M50/449 ,  H01M50/414 ,  H01M50/406 ,  H01M50/489 ,  H01M50/494 ,  H01M50/491

CPC分类号： H01M50/449 ,  H01M50/414 ,  H01M50/406 ,  H01M50/489 ,  H01M50/494 ,  H01M50/491 ,  H01M10/052

摘要： The present invention relates in at least selected embodiments to novel or improved microporous battery separators for lithium rechargeable batteries and/or related methods of making and/or using such separators. A particular inventive dry process battery separator or membrane separator exhibits a thickness that is less than about 14 μm and has increased strength performance as defined by reduced splittiness. The mode of splitting failure has been investigated, and the improvement in splittiness quantified by a novel test method known as the Composite Splittiness Index (CSI).

公开(公告)号：US20240158589A1

公开(公告)日：2024-05-16

申请号：US18280227

申请日：2022-03-01

申请人： Celgard, LLC

发明人： Eric R. White ,  David Anzini ,  Ron E. Smith

IPC分类号： C08J5/18 ,  B01D67/00 ,  B01D69/02 ,  B01D71/26 ,  B01D71/76 ,  B32B5/02 ,  B32B27/12 ,  B32B27/32

CPC分类号： C08J5/18 ,  B01D69/02 ,  B01D71/261 ,  B01D71/262 ,  B01D71/76 ,  B32B5/02 ,  B32B27/12 ,  B32B27/32 ,  B01D67/0027 ,  B01D67/0088 ,  B01D2325/22 ,  B01D2325/30 ,  B32B2255/10 ,  B32B2270/00 ,  B32B2307/308 ,  B32B2307/516 ,  B32B2307/518 ,  B32B2307/714 ,  B32B2437/00 ,  B32B2571/00 ,  C08J2323/16 ,  C08J2423/12

摘要： A dry-process porous membrane having an oxygen induction time (OIT) greater than 3 minutes, greater than 5 minutes, greater than 10 minutes, greater than 15 minutes, greater than 20 minutes, or greater than 25 minutes where OIT is measured at 215° C. and 100% O2. The dry-process porous membrane may be a microporous polyolefin membrane.

公开(公告)号：US20160149181A1

公开(公告)日：2016-05-26

申请号：US14950478

申请日：2015-11-24

申请人： Celgard, LLC

发明人： Xiaomin Zhang ,  Kang Karen Xiao ,  Robert A. Nark ,  Ron E. Smith

IPC分类号： H01M2/16 ,  H01M2/14 ,  H01M10/0525

CPC分类号： H01M2/145 ,  H01M2/1653 ,  H01M2/1686 ,  H01M10/052

摘要： The present invention relates in at least selected embodiments to novel or improved microporous battery separators for lithium rechargeable batteries and/or related methods of making and/or using such separators. A particular inventive dry process battery separator or membrane separator exhibits a thickness that is less than about 14 μm and has increased strength performance as defined by reduced splittiness. The mode of splitting failure has been investigated, and the improvement in splittiness quantified by a novel test method known as the Composite Splittiness Index (CSI).

摘要翻译： 本发明在至少选择的实施例中涉及用于锂可充电电池的新型或改进的微孔电池隔板和/或制造和/或使用这种隔板的相关方法。 特定的本发明的干法电池隔膜或膜分离器具有小于约14μm的厚度，并具有增加的强度性能，如通过减小的分裂所限定的。 已经研究了分裂失效的方式，并且通过称为复合分散指数（CSI）的新颖的测试方法来量化分裂的改善。

公开(公告)号：US11728546B2

公开(公告)日：2023-08-15

申请号：US14950478

申请日：2015-11-24

申请人： Celgard, LLC

发明人： Xiaomin Zhang ,  Kang Karen Xiao ,  Robert A. Nark ,  Ron E. Smith

IPC分类号： H01M10/05 ,  H01M50/449 ,  H01M50/414 ,  H01M50/406 ,  H01M50/489 ,  H01M50/494 ,  H01M50/491 ,  H01M10/052

CPC分类号： H01M50/449 ,  H01M50/406 ,  H01M50/414 ,  H01M50/489 ,  H01M50/491 ,  H01M50/494 ,  H01M10/052

摘要： Several embodiments of a microporous battery separator for lithium rechargeable batteries and/or related methods of making and/or using such separators are disclosed. A dry process battery separator or membrane separator exhibits a thickness that is less than about 14 μm and has increased strength performance as defined by reduced splittiness. The mode of splitting failure has been investigated, and the improvement in splittiness quantified by a test method known as the Composite Splittiness Index (CSI).