公开(公告)号：US20210155767A1

公开(公告)日：2021-05-27

申请号：US17156792

申请日：2021-01-25

申请人： Celgard, LLC

发明人： Karl F. Humiston ,  Kristoffer K. Stokes ,  Perry K. Hancock

IPC分类号： C08J5/18 ,  B32B5/02 ,  B32B27/12 ,  B32B7/00 ,  B32B7/02 ,  B32B27/06 ,  B32B27/08 ,  B32B27/28 ,  B32B27/32 ,  B32B3/00 ,  B32B3/26

摘要： Provided herein are seam tapes and related methods. The seam tapes can be compatible with polyolefin-based waterproof/breathable (w/b) membranes, including polypropylene (PP) w/b membranes and/or polyethylene (PE) w/b membranes. Also provided are seams sealed by means of these seam tapes, as well as materials, fabrics, and garments including one or more of these sealed seams.

公开(公告)号：US10921385B2

公开(公告)日：2021-02-16

申请号：US16877954

申请日：2020-05-19

申请人： Celgard, LLC

发明人： Zhengming Zhang ,  Weifeng Fang

IPC分类号： H01M10/42 ,  G01R31/50 ,  H01M10/48 ,  G01R31/382

摘要： A system for differentiating short circuiting in a battery includes: a detector coupled to the battery; a monitor in communication with the detector, the monitor including a profile of a battery shorting behavior, and a comparator for matching data from the detector to the profile; and a controller for taking action based upon information from the detector. A method for detecting short circuiting in a battery includes the steps of: detecting a behavior of the battery; comparing the behavior of the battery to a predetermined battery behavior profile; determining the type of short based on the comparison; and taking mitigating action based on the determination. The system/method may monitor: temperature of the battery, heat generation from the battery, current flow through the battery, voltage drop across the battery, and/or combinations thereof. The system/method discriminates between the various battery shorting behaviors for aggressive response or passive response.

公开(公告)号：US20210013477A1

公开(公告)日：2021-01-14

申请号：US17034609

申请日：2020-09-28

申请人： Celgard, LLC

发明人： Donald K. Simmons ,  Joseph G. Yaritz

IPC分类号： H01M2/16 ,  B01D67/00 ,  B29C55/00 ,  H01M2/14 ,  B01D71/26 ,  B29C48/08 ,  H01M10/0525

摘要： A membrane is a microporous sheet made of a blend of a first ultra high molecular weight polyolefin and a second ultra high molecular weight polyolefin. Each polyolefin has a molecular weight, both of those molecular weights are greater than 1 million, and one molecular weight is greater than the other. Additionally, the intrinsic viscosity (IV) of the membrane may be greater than or equal to 6.3.

公开(公告)号：US10826108B2

公开(公告)日：2020-11-03

申请号：US13193665

申请日：2011-07-29

申请人： C. Glen Wensley ,  Carlos R. Negrete ,  Jill V. Watson

发明人： C. Glen Wensley ,  Carlos R. Negrete ,  Jill V. Watson

IPC分类号： H01M10/05 ,  H01M2/14 ,  H01M2/16 ,  H01M10/0525

摘要： Disclosed or provided are high melt temperature microporous Lithium-ion rechargeable battery separators, shutdown high melt temperature battery separators, battery separators, membranes, composites, and the like that preferably prevent contact between the anode and cathode when the battery is maintained at elevated temperatures for a period of time, methods of making, testing and/or using such separators, membranes, composites, and the like, and/or batteries, Lithium-ion rechargeable batteries, and the like including one or more such separators, membranes, composites, and the like.

公开(公告)号：US10818899B2

公开(公告)日：2020-10-27

申请号：US15979679

申请日：2018-05-15

申请人： CELGARD, LLC

发明人： Ronald W. Call ,  C. William Fulk, Jr. ,  Lie Shi ,  Xiaomin Zhang ,  Khuy V. Nguyen

IPC分类号： H01M2/16 ,  B29C48/30 ,  B29C48/08 ,  B29C48/16 ,  B29C48/00 ,  B29K29/00 ,  B29K31/00 ,  B29K59/00 ,  B29K67/00 ,  B29K81/00 ,  B29K105/04 ,  B29C48/32 ,  B29C48/305 ,  B29C48/13 ,  B29C48/17 ,  B29C48/21 ,  B29K23/00 ,  B29K27/00 ,  B29K27/18 ,  B29K77/00 ,  B29K105/00 ,  B29K105/06 ,  B29K105/16 ,  B29L9/00 ,  B29L28/00 ,  H01M10/0525

摘要： A battery separator comprises a co-extruded, microporous membrane having at least two layers made of extrudable polymers and having: a uniform thickness defined by a standard deviation of 60 grams.

公开(公告)号：US20200335759A1

公开(公告)日：2020-10-22

申请号：US16318405

申请日：2017-07-21

申请人： CELGARD, LLC

发明人： Michael B. LANE ,  Insik JEON ,  Edward KRUGER ,  Xiang YU ,  Ronnie E. SMITH ,  Stefan REINARTZ ,  Junqing MA

IPC分类号： H01M2/16 ,  C09D5/18 ,  C09D139/04 ,  C09D129/04 ,  C09D133/04 ,  C09D7/65 ,  C09D7/20 ,  H01M10/0525

摘要： New and/or improved coatings for porous substrates, including battery separators or separator membranes, and/or coated porous substrates, including coated battery separators, and/or batteries or cells including such coatings or coated separators, and/or related methods including methods of manufacture and/or of use thereof are disclosed. Also, new or improved coatings for porous substrates, including battery separators, which comprise at least a polymeric binder and heat-resistant particles with or without additional additives, materials or components, and/or to new or improved coated porous substrates, including battery separators, where the coating comprises at least a polymeric binder and heat-resistant particles with or without additional additives, materials or components are disclosed. Further, new or improved coatings for porous substrates, including battery separators, and new and/or improved coated porous substrates, including battery separators, new or improved coatings for porous substrates, including battery separators, which comprise at least (i) a polymeric binder, (ii) heat-resistant particles, and (iii) at least one component selected from the group consisting of a cross-linker, a low-temperature shutdown agent, an adhesion agent, and a thickener, and new and/or improved coated porous substrates, including battery separators, where the coating comprises at least (i) a polymeric binder, (ii) heat-resistant particles, and (iii) at least one component selected from the group consisting of a cross-linker, a low-temperature shutdown agent, an adhesion agent, a thickener, a friction-reducing agent, a high-temperature shutdown agent are disclosed.

公开(公告)号：US10804516B2

公开(公告)日：2020-10-13

申请号：US14662629

申请日：2015-03-19

申请人： Celgard, LLC

发明人： Kristoffer K. Stokes ,  Karl F. Humiston

IPC分类号： H01M2/16 ,  B29C48/08 ,  H01M2/18 ,  B29C55/16 ,  B29C55/00 ,  B29C55/06 ,  B29C48/00 ,  B29C48/21 ,  B29C48/92 ,  B29L31/00 ,  B29K23/00 ,  B29C59/02 ,  B29C55/02

摘要： Disclosed are embossed microporous membranes, as well as articles (e.g., battery separators, materials, textiles, composites, and laminates) comprising the embossed microporous membranes. Also provided are methods of making and/or using embossed microporous membranes.

公开(公告)号：US10347951B2

公开(公告)日：2019-07-09

申请号：US15492062

申请日：2017-04-20

申请人： Celgard, LLC

发明人： Paul M. Halmo ,  Xiaomin Zhang ,  Paul D. Vido ,  Zhengming Zhang ,  Lie Shi ,  Daniel R. Alexander ,  Jill V. Watson

IPC分类号： H01M2/14 ,  H01M10/42 ,  H01M2/16 ,  H01M10/0525

摘要： In accordance with at least selected aspects, objects or embodiments, optimized, novel or improved membranes, battery separators, batteries, and/or systems and/or related methods of manufacture, use and/or optimization are provided. In accordance with at least selected embodiments, the present invention is related to novel or improved battery separators that prevent dendrite growth, prevent internal shorts due to dendrite growth, or both, batteries incorporating such separators, systems incorporating such batteries, and/or related methods of manufacture, use and/or optimization thereof. In accordance with at least certain embodiments, the present invention is related to novel or improved ultra thin or super thin membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs. In accordance with at least particular certain embodiments, the present invention is related to shutdown membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs.

公开(公告)号：US10326121B2

公开(公告)日：2019-06-18

申请号：US15483311

申请日：2017-04-10

申请人： Celgard, LLC

发明人： Zhengming Zhang ,  Pankaj Arora

IPC分类号： H01M2/14 ,  H01M2/16 ,  H01M4/62 ,  H01M10/058 ,  H01M10/0525

摘要： A method for preventing oxidation of a polyolefin separator in a lithium ion secondary battery includes the steps of: providing a lithium ion secondary battery having a positive electrode and a polyolefin separator film; and positioning an antioxidative barrier coating between the positive electrode and the polyolefin separator film, the antioxidative barrier coating being made of a polymer having a resistance to oxidation greater than polyethylene.

公开(公告)号：US10249862B2

公开(公告)日：2019-04-02

申请号：US15589053

申请日：2017-05-08

申请人： Celgard, LLC

发明人： C. Glen Wensley ,  Lie Shi

IPC分类号： H01M2/16 ,  H01M2/14 ,  H01M10/0525 ,  H01M2/18

摘要： A membrane includes a porous membrane or layer made of a polymeric material having a plurality of surface treated (or coated) particles (or ceramic particles) having an average particle size of less than about 1 micron dispersed therein. The polymeric material may be selected from the group consisting of polyolefins, polyamides, polyesters, co-polymers thereof, and combinations thereof. The particles may be selected from the group consisting of boehmite (AlOOH), SiO2, TiO2, Al2O3, BaSO4, CaCO3, BN, and combinations thereof, or the particles may be boehmite. The surface treatment (or coating) may be a molecule having a reactive end and a non-polar end. The particles may be pre-mixed in a low molecular weight wax before mixing with the polymeric material. The membrane may be used as a battery separator.