公开(公告)号：EP4135971A1

公开(公告)日：2023-02-22

申请号：EP21807948.1

申请日：2021-05-18

申请人： Celgard, LLC

发明人： ANZINI, David ,  WHITE, Eric, R. ,  SUMMEY, Barry, J. ,  ALEXANDER, Daniel, R.

IPC分类号： B29D7/01

公开(公告)号：EP4132311A1

公开(公告)日：2023-02-15

申请号：EP21792204.6

申请日：2021-04-19

申请人： Celgard, LLC

发明人： SUMMEY, Barry, J. ,  WHITE, Eric, R. ,  SMITH, Ronnie, E. ,  ANZINI, David ,  ALEXANDER, Daniel, R. ,  VERDERAME, Anna ,  TAYLOR, Tamara, A.

IPC分类号： A41D31/02 ,  A41D31/14 ,  A41D31/30 ,  B29C55/04 ,  B29C55/12 ,  B32B5/22 ,  B32B27/12 ,  B32B27/32

公开(公告)号：EP4123816A1

公开(公告)日：2023-01-25

申请号：EP22194605.6

申请日：2016-09-16

申请人： Celgard, LLC

发明人： STOKES, Kristoffer, K. ,  MASON, William, John ,  XIAO, Kang, Karen ,  ZHANG, Xiaomin ,  SUMMEY, Barry, J. ,  MORAN, Robert ,  POLEY, Jeffrey, Gordon ,  STEPP, Brian, R. ,  ADAMS, Changqing, Wang ,  ALEXANDER, Daniel, R. ,  WILLIAMS, Shante, P. ,  VOSS, Andrew, Edward ,  ROBERTSON, Douglas, George

IPC分类号： H01M50/489 ,  H01M10/0525 ,  H01M10/052 ,  H01M10/42 ,  H01M50/434 ,  H01M50/44 ,  H01M50/446 ,  H01M50/451 ,  H01M50/457 ,  H01M50/417

摘要： Novel or improved microporous single or multilayer battery separator membranes, separators, batteries including such membranes or separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries are provided. In accordance with at least certain embodiments, a multilayer dry process polyethylene / polypropylene / polyethylene microporous separator which is manufactured using the inventive process which includes machine direction stretching followed by transverse direction stretching and a subsequent calendering step as a means to reduce the thickness of the multilayer microporous membrane, to reduce the percent porosity of the multilayer microporous membrane in a controlled manner and/or to improve transverse direction tensile strength. In a very particular embodiment, the inventive process produces a thin multilayer microporous membrane that is easily coated with polymeric-ceramic coatings, has excellent mechanical strength properties due to its polypropylene layer or layers and a thermal shutdown function due to its polyethylene layer or layers. The ratio of the thickness of the polypropylene and polyethylene layers in the inventive multilayer microporous membrane can be tailored to balance mechanical strength and thermal shutdown properties.

公开(公告)号：EP3977536A1

公开(公告)日：2022-04-06

申请号：EP20815441.9

申请日：2020-05-22

申请人： Celgard, LLC

发明人： REINARTZ, Stefan ,  CHEMELEWSKI, Katharine ,  SUMMEY, Barry, J. ,  MORAN, Robert

IPC分类号： H01M2/14 ,  H01M2/16 ,  H01M10/0525 ,  B29C43/24

公开(公告)号：EP3350854A1

公开(公告)日：2018-07-25

申请号：EP16847371.8

申请日：2016-09-16

申请人： Celgard, LLC

发明人： STOKES, Kristoffer, K. ,  MASON, William, John ,  XIAO, Kang, Karen ,  ZHANG, Xiaomin ,  SUMMEY, Barry, J. ,  MORAN, Robert ,  POLEY, Jeffrey, Gordon ,  STEPP, Brian, R. ,  ADAMS, Changqing, Wang ,  ALEXANDER, Daniel, R. ,  WILLIAMS, Shante, P. ,  VOSS, Andrew, Edward ,  ROBERTSON, Douglas, George

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

CPC分类号： H01M2/1686 ,  H01M2/145 ,  H01M2/162 ,  H01M2/1646 ,  H01M2/166 ,  H01M2/18 ,  H01M10/052 ,  H01M10/4235 ,  H01M2220/20 ,  Y02E60/122 ,  Y02P70/54

摘要： Novel or improved microporous single or multilayer battery separator membranes, separators, batteries including such membranes or separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries are provided. In accordance with at least certain embodiments, a multilayer dry process polyethylene/polypropylene/polyethylene microporous separator which is manufactured using the inventive process which includes machine direction stretching followed by transverse direction stretching and a subsequent calendering step as a means to reduce the thickness of the multilayer microporous membrane, to reduce the percent porosity of the multilayer microporous membrane in a controlled manner and/or to improve transverse direction tensile strength. In a very particular embodiment, the inventive process produces a thin multilayer microporous membrane that is easily coated with polymeric-ceramic coatings, has excellent mechanical strength properties due to its polypropylene layer or layers and a thermal shutdown function due to its polyethylene layer or layers. The ratio of the thickness of the polypropylene and polyethylene layers in the inventive multilayer microporous membrane can be tailored to balance mechanical strength and thermal shutdown properties.