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公开(公告)号：US20240347784A1
公开(公告)日：2024-10-17
申请号：US18683798
申请日：2022-06-07
申请人： Celgard, LLC
发明人： Zhengming Zhang , Wenbin Yin
IPC分类号： H01M10/42 , H01M10/613 , H01M10/653 , H01M10/6551 , H01M50/417 , H01M50/434 , H01M50/457 , H01M50/491
CPC分类号： H01M10/4235 , H01M10/613 , H01M10/653 , H01M10/6551 , H01M50/417 , H01M50/434 , H01M50/457 , H01M50/491
摘要： A battery separator is provided comprising a microporous membrane comprising one or more layers of a polyolefin and a heat absorption layer affixed to a surface of the microporous membrane, wherein the heat absorption layer is configured to absorb heat and reduce thermal propagation within a battery cell. The heat absorption layer can comprise at least one of a phase change material or a high heat capacity material configured to absorb heat in or above a normal battery cell operating range.
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公开(公告)号：US20240254303A1
公开(公告)日：2024-08-01
申请号：US18594101
申请日：2024-03-04
申请人： Celgard, LLC
IPC分类号： C08J9/42 , B01D69/10 , B01D69/12 , B01D71/26 , B01D71/38 , H01G9/02 , H01G11/52 , H01M8/0239 , H01M10/052 , H01M50/414 , H01M50/489 , H01M50/491 , H01M50/494 , H01M50/497
CPC分类号： C08J9/42 , B01D69/1071 , B01D69/1216 , B01D71/261 , B01D71/262 , B01D71/381 , H01M8/0239 , H01M10/052 , H01M50/414 , H01M50/489 , H01M50/491 , H01M50/494 , H01M50/497 , B01D2325/021 , B01D2325/0281 , C08J2323/06 , C08J2323/12 , H01G9/02 , H01G11/52
摘要： A novel or improved base film for impregnation, impregnated base film, product incorporating the impregnated base film, and/or related methods as shown, claimed or described herein.
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3.发明公开公开(公告)号：US20240234950A9
公开(公告)日：2024-07-11
申请号：US18277546
申请日：2022-02-04
申请人： Celgard, LLC
发明人： Wenbin Yin , Zhengming Zhang , Stefan Reinartz , Takeda Hisashi , Xiang Yu
IPC分类号： H01M50/446 , H01M10/0525 , H01M50/403 , H01M50/417 , H01M50/42 , H01M50/426 , H01M50/434 , H01M50/489
CPC分类号： H01M50/446 , H01M10/0525 , H01M50/403 , H01M50/417 , H01M50/42 , H01M50/426 , H01M50/434 , H01M50/489 , H01G9/02
摘要： A heat-resistant sticky coating for use on a membrane or lithium ion battery separator is disclosed. The coating has at least improved dry adhesion to an electrode for a lithium ion battery. The coating includes heat-resistant particles with a water-soluble sticky polymer on their surface. The water-soluble sticky polymer may be a polyethylene oxide (PEO). The coating may also include particles of water-insoluble sticky polymer. The water-insoluble sticky polymer may be a polyvinylidene fluoride (PVDF) homopolymer, copolymer, or terpolymer. The water-insoluble sticky polymer may be in the same layer of the coating as the heat-resistant particles with the water-soluble sticky polymer on their surface, or it may be in a different layer. A method for forming the heat-resistant sticky coating is also disclosed.
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公开(公告)号：US20240199898A1
公开(公告)日：2024-06-20
申请号：US18413284
申请日：2024-01-16
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： C09D7/65 , C09D5/18 , C09D7/20 , C09D129/04 , C09D133/04 , C09D139/04 , H01M10/0525 , H01M50/411 , H01M50/414 , H01M50/417 , H01M50/42 , H01M50/426 , H01M50/429 , H01M50/449 , H01M50/451 , H01M50/457 , H01M50/489
CPC分类号： C09D7/65 , C09D5/18 , C09D7/20 , C09D129/04 , C09D133/04 , C09D139/04 , H01M10/0525 , H01M50/411 , H01M50/414 , H01M50/417 , H01M50/42 , H01M50/426 , H01M50/429 , H01M50/449 , H01M50/451 , H01M50/457 , H01M50/489 , H01M2220/20
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.
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公开(公告)号：US20240190115A1
公开(公告)日：2024-06-13
申请号：US18286123
申请日：2022-04-12
申请人： Celgard, LLC
IPC分类号： B32B27/32 , B29D7/01 , B29D99/00 , B29K105/04 , B32B27/08 , C08J5/18 , H01M50/403 , H01M50/417 , H01M50/42 , H01M50/426 , H01M50/44 , H01M50/457 , H01M50/489 , H01M50/491
CPC分类号： B32B27/32 , B29D7/01 , B29D99/0092 , B32B27/08 , C08J5/18 , H01M50/403 , H01M50/417 , H01M50/42 , H01M50/426 , H01M50/44 , H01M50/457 , H01M50/489 , H01M50/491 , B29K2023/04 , B29K2105/041 , B32B2250/242 , B32B2307/581 , B32B2307/724 , B32B2307/7376 , B32B2437/00 , B32B2571/00 , B32B2605/003 , C08J2323/06 , C08J2323/12
摘要： In one aspect, a wide microporous film comprises one or more layers comprising a polyolefin, wherein the microporous film has a width of at least 50 inches and comprises one or more non-porous regions. In some embodiments, the microporous film is at least 55 inches or at least 60 inches. Moreover, in some embodiments, the non-porous region is located along a creased region of the microporous film.
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公开(公告)号：US11923497B2
公开(公告)日：2024-03-05
申请号：US17515580
申请日：2021-11-01
申请人： Celgard, LLC
发明人： Changqing Wang Adams , Kang Karen Xiao , Stefan Reinartz , Masaaki Okada , Brian R. Stepp , Yao Lu , Eric Robert White , Katharine Chemelewski
IPC分类号： H01M50/449 , H01M10/052 , H01M10/0525 , H01M10/0567 , H01M50/417 , H01M50/451 , H01M50/454 , H01M50/491
CPC分类号： H01M10/052 , H01M10/0525 , H01M10/0567 , H01M50/417 , H01M50/451 , H01M50/454 , H01M50/491
摘要： Described herein, are battery separators, comprising the following: a microporous polymeric film; and an optional coating layer on at least one side of the microporous polymeric film, wherein at least one of the microporous polymeric film and the optional coating comprises an additive. The additive is selected from the group consisting of a lubricating agent, a plasticizing agent, a nucleating agent, a shrinkage reducing agent, a surfactant, an SEI improving agent, a cathode protection agent, a flame retardant additive, LiPF6 salt stabilizer, an overcharge protector, an aluminum corrosion inhibitor, a lithium deposition agent or improver, or a solvation enhancer, an aluminum corrosion inhibitor, a wetting agent, and a viscosity improver. Also, described herein are batteries, including lithium-ion batteries, comprising one or more of the described separators. Methods for making the battery separators are also described.
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7.发明公开公开(公告)号：US20230391056A1
公开(公告)日：2023-12-07
申请号：US18235898
申请日：2023-08-21
申请人： Celgard, LLC
发明人： Xiaomin Zhang , Lie Shi
IPC分类号： B32B27/08 , B32B27/32 , B32B3/26 , H01M50/403 , H01M50/491 , H01M50/417 , H01M50/406 , H01M50/489 , H01M50/457
CPC分类号： B32B27/08 , B32B27/32 , B32B3/26 , H01M50/403 , H01M50/491 , H01M50/417 , H01M50/406 , H01M50/489 , H01M50/457 , H01M10/0525
摘要： Novel or improved microporous battery separator membranes, separators, cells, batteries including such membranes, separators, or cells, and/or methods of making such membranes and/or separators, and/or methods of using such membranes and/or separators. In accordance with at least certain embodiments, an improved or novel battery separator for a secondary or rechargeable lithium battery may have low Electrical resistance of less than 0.95 ohm-cm2, or in some cases, less than 0.8 ohm-cm2. Furthermore, the inventive battery separator membrane may provide a means to achieve an improved level of battery performance in a rechargeable or secondary lithium battery based on a possibly synergistic combination of low Electrical resistance, low Gurley, low tortuosity, and/or a unique trapezoid shaped pore. In accordance with at least certain multilayer embodiments (by way of example only, a trilayer membrane made of two polypropylene layers with a polyethylene layer in between), the inventive microporous membrane or battery separator may have excellent onset and rate of thermal shutdown performance.
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公开(公告)号：US11833763B2
公开(公告)日：2023-12-05
申请号：US18076068
申请日：2022-12-06
申请人： Celgard, LLC
发明人： Xiaomin Zhang , Gerald P. Rumierz , Karl F. Humiston , Charles E. Haire , Tyrone S. Fields , Michael A. Braswell , Ronald A. Proctor , Ronnie E. Smith
IPC分类号： B29C65/00 , B29C48/00 , B29C48/21 , B29C48/92 , B29C48/08 , B29C48/10 , B29C48/18 , B29C55/00 , H01M50/417 , H01M50/423 , H01M50/426 , H01M50/494 , H01M50/491 , H01M50/457 , H01M50/406 , H01M50/463 , H01M50/449 , H01M50/411 , B29C48/32 , B29C48/88 , H01M50/403 , B29C55/14 , B29C55/16 , B29D99/00 , B29K23/00 , B29L31/34 , B29L31/00 , H01M10/0525
CPC分类号： B29C65/00 , B29C48/0018 , B29C48/08 , B29C48/10 , B29C48/18 , B29C48/21 , B29C48/92 , B29C55/005 , H01M50/406 , H01M50/411 , H01M50/417 , H01M50/423 , H01M50/426 , H01M50/449 , H01M50/457 , H01M50/463 , H01M50/491 , H01M50/494 , B29C48/32 , B29C48/917 , B29C55/14 , B29C55/16 , B29C2948/92704 , B29D99/005 , B29K2023/12 , B29L2031/3468 , B29L2031/755 , H01M10/0525 , H01M50/403 , H01M2220/20 , H01M2220/30 , Y02E60/10
摘要： Improved battery separators, base films or membranes, batteries, cells, devices, systems, vehicles, and/or methods of making and/or using such separators, films or membranes, batteries, cells, devices, systems, vehicles, and/or methods of enhancing battery or cell charge rates, charge capacity, and/or discharge rates, and/or methods of improving batteries, systems including such batteries, vehicles including such batteries and/or systems, and/or the like; biaxially oriented porous membranes, composites including biaxially oriented porous membranes, biaxially oriented microporous membranes, biaxially oriented macroporous membranes, battery separators with improved charge capacities and the related methods and methods of manufacture, methods of use, and the like; flat sheet membranes, liquid retention media; dry process separators; biaxially stretched separators; dry process biaxially stretched separators having a thickness range between about 5 μm and 50 μm, preferably between about 10 μm and 25 μm, having improved strength, high porosity, and unexpectedly and/or surprisingly high charge capacity, such as, for example, high 10 C rate charge capacity; separators or membranes with high charge capacity and high porosity, excellent charge rate and/or charge capacity performance in a rechargeable and/or secondary lithium battery, such as a lithium ion battery, for high power and/or high energy applications, cells, devices, systems, and/or vehicles, and/or the like; single or multiple ply or layer separators, monolayer separators, trilayer separators, composite separators, laminated separators, co-extruded separators, coated separators, 1 C or higher separators, at least 1 C separators, batteries, cells, systems, devices, vehicles, and/or the like; improved microporous battery separators for secondary lithium batteries, improved microporous battery separators with enhanced or high charge (C) rates, discharge (C) rates, and/or enhanced or high charge capacities in or for secondary lithium batteries, and/or related methods of manufacture, use, and/or the like, and/or combinations thereof are disclosed or provided.
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公开(公告)号：US20230335860A1
公开(公告)日：2023-10-19
申请号：US18076463
申请日：2022-12-07
发明人： Shun Saito , Kazunori Uchida , Hisashi Takeda
IPC分类号： H01M50/417 , H01M50/449 , H01M50/491
CPC分类号： H01M50/417 , H01M50/449 , H01M50/491
摘要： [Problem] To provide a separator for electric storage devices that suppresses dendrite short circuits and has excellent thermal stability.
[Solution] Provided is a separator for electric storage devices including: (A) a microporous layer mainly composed of (X) polypropylene; and (B) a microporous layer containing (Y) polypropylene identical or different from the polypropylene (X) and a thermoplastic elastomer that is incompatible with the polypropylene (Y). In an ND-MD sectional observation of the microporous layer (B), the area-averaged long pore diameter of pores present in the microporous layer (B) is from 150 nm to 500 nm.-
公开(公告)号：US11784344B2
公开(公告)日：2023-10-10
申请号：US17365736
申请日：2021-07-01
申请人： Celgard, LLC
发明人： Kang Karen Xiao , Eric Joseph Penegar , Takahiko Kondo , Robert Nark , Eric Robert White , Xiaomin Zhang , Kristoffer K. Stokes
IPC分类号： H01M10/0525 , H01M50/417 , H01M50/406 , H01M50/457 , H01M50/494 , H01M50/489 , H01M50/491 , B01D71/26 , B01D69/12 , H01M50/451
CPC分类号： H01M10/0525 , B01D69/12 , B01D71/26 , H01M50/406 , H01M50/417 , H01M50/451 , H01M50/457 , H01M50/489 , H01M50/491 , H01M50/494
摘要： In accordance with at least selected embodiments, a battery separator or separator membrane comprises one or more co-extruded multi-microlayer membranes optionally laminated or adhered to another polymer membrane. The separators described herein may provide improved strength, for example, improved puncture strength, particularly at a certain thickness, and may exhibit improved shutdown and/or a reduced propensity to split.
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