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公开(公告)号：US11335974B2
公开(公告)日：2022-05-17
申请号：US16495132
申请日：2018-03-22
申请人： DARAMIC, LLC
发明人： J. Kevin Whear , Mohammed Naiha
IPC分类号： H01M50/446 , H01M50/44 , H01M50/463 , H01M50/20 , H01M10/06
摘要： A separator is provided with a novel construction and/or a combination of improved properties. Batteries, methods, and systems associated therewith are also provided. In certain embodiments, novel or improved separators, battery separators, enhanced flooded battery separators, batteries, cells, and/or methods of manufacture and/or use of such separators, battery separators, enhanced flooded battery separators, cells, and/or batteries are provided. In addition, there is disclosed herein methods, systems, and battery separators having a reduced ER, improved puncture strength, improved separator CMD stiffness, improved oxidation resistance, reduced separator thickness, reduced basis weight, and any combination thereof. In accordance with at least certain embodiments, separators are provided in battery applications for flat-plate batteries, tubular batteries, vehicle SLI, and HEV ISS applications, deep cycle applications, golf car or golf cart, and e-rickshaw batteries, batteries operating in a partial state of charge (“PSOC”), inverter batteries; and storage batteries for renewable energy sources, and any combination thereof.
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42.发明授权公开(公告)号：US11271270B2
公开(公告)日：2022-03-08
申请号：US16543727
申请日：2019-08-19
申请人： Daramic, LLC
IPC分类号： H01M50/449 , H01M50/44 , H01M50/403 , H01M50/431 , H01M50/446 , H01M10/12
摘要： In accordance with at least selected embodiments, the present application or invention is directed to novel or improved porous membranes or substrates, separator membranes, separators, composites, electrochemical devices, batteries, methods of making such membranes or substrates, separators, and/or batteries, and/or methods of using such membranes or substrates, separators and/or batteries. In accordance with at least certain embodiments, the present application is directed to novel or improved porous membranes having a coating layer, battery separator membranes having a coating layer, separators, energy storage devices, batteries, including lead acid batteries including such separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries. The disclosed separators and/or batteries have improved charge acceptance, improved surface conductivity, improved oxidation resistance, reduced acid stratification, improved resistance to metal contamination induced oxidation, reduced black residue, improved wettability, and/or improved stiffness.
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公开(公告)号：US11145934B2
公开(公告)日：2021-10-12
申请号：US15922052
申请日：2018-03-15
申请人： Daramic, LLC
IPC分类号： H01M50/44 , H01M4/14 , H01M50/429 , H01M50/403 , H01M50/431 , H01M50/449 , H01M50/446 , H01M10/12 , H01M4/02
摘要： Disclosed herein are novel or improved fibrous layers, composites, composite separators, separators, composite mat separators, composite mat separators containing fibers and silica particles, battery separators, lead acid battery separators, and/or flooded lead acid battery separators, and/or batteries, cells, and/or methods of manufacture and/or use of such fibrous layers, composites, composite separators, separators, battery separators, lead acid battery separators, cells, and/or batteries. In addition, disclosed herein are methods, systems, and battery separators for enhancing battery life, reducing internal resistance, reducing metalloid poisoning, reducing acid stratification, and/or improving uniformity in at least enhanced flooded batteries.
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公开(公告)号：US20210296737A1
公开(公告)日：2021-09-23
申请号：US17262102
申请日：2019-07-22
申请人： Daramic, LLC
IPC分类号： H01M50/491 , H01M50/429 , H01M50/44 , H01M50/446 , H01M50/437 , B60L50/64 , H01M50/403 , H01M50/417 , H01M50/42
摘要： Disclosed herein are exemplary embodiments of improved separators for batteries, particularly lead acid batteries, and more particularly enhanced flooded lead acid batteries, improved lead acid batteries incorporating the improved separators, systems incorporating the improved separators and/or batteries, and methods related thereto. The improved separators may contain a cross-linkable component and a surfactant, agent, or additive. Furthermore, the cross-linkable component may be at least partially cross-linked. In addition, the separator may further be composed of a polymer and a filler, and may be additionally paired with a fibrous mat.
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公开(公告)号：US11128014B2
公开(公告)日：2021-09-21
申请号：US16484511
申请日：2018-02-09
申请人： DARAMIC, LLC
IPC分类号： H01M2/16 , H01M50/449 , H01M10/12 , H01M50/44 , H01M50/411 , H01M50/463 , B01D69/10
摘要： In at least one embodiment, a separator is provided with a fibrous mat for retaining the active material on an electrode of a lead-acid battery. New or improved mats, separators, batteries, methods, and/or systems are also disclosed, shown, claimed, and/or provided. For example, in at least one possibly preferred embodiment, a composite separator is provided with a fibrous mat for retaining the active material on an electrode of a lead-acid battery. In at least one possibly particularly preferred embodiment, a PE membrane separator is provided with at least one fibrous mat for retaining the active material on an electrode of a lead-acid battery. In accordance with at least certain embodiments, aspects and/or objects, the present invention, application, or disclosure may provide solutions, new products, improved products, new methods, and/or improved methods, and/or may address issues, needs, and/or problems of PAM shedding. NAM shedding, electrode distortion, active material shedding, active material loss, and/or physical separation, electrode effectiveness, battery performance, battery life, and/or cycle life, and/or may provide new battery separators, new battery technology, and/or new battery methods and/or systems that address the challenges arising from current lead acid batteries or battery systems, especially new battery separators, new battery technology, and/or new battery methods and/or systems adapted to prevent or impede the shedding of active material from the electrodes, preferably or particularly in enhanced flooded lead acid batteries, PSoC batteries, ISS batteries, ESS batteries, and/or the like.
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公开(公告)号：US20210020886A1
公开(公告)日：2021-01-21
申请号：US17063733
申请日：2020-10-06
申请人： DARAMIC, LLC
发明人： Mohammed Naiha , Jörg Deiters , Ahila Krishnamoorthy , Eric H. Miller , J. Kevin Whear , Robert W. Saffel , Naoto Miyake , Kanak Kuwelkar
摘要： A battery separator has performance enhancing additives or coatings, fillers with increased friability, increased ionic diffusion, decreased tortuosity, increased wettability, reduced oil content, reduced thickness, decreased electrical resistance, and/or increased porosity. The separator in a battery reduces the water loss, lowers acid stratification, lowers the voltage drop, and/or increases the CCA. The separators include or exhibit performance enhancing additives or coatings, increased porosity, increased void volume, amorphous silica, higher oil absorption silica, higher silanol group silica, reduced electrical resistance, a shish-kebab structure or morphology, a polyolefin microporous membrane containing particle-like filler in an amount of 40% or more by weight of the membrane and ultrahigh molecular weight polyethylene having shish-kebab formations and the average repetition periodicity of the kebab formation from 1 nm to 150 nm, decreased sheet thickness, decreased tortuosity, separators especially well-suited for enhanced flooded batteries.
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公开(公告)号：US10811655B2
公开(公告)日：2020-10-20
申请号：US15482293
申请日：2017-04-07
申请人： Daramic, LLC
发明人： Mohammed Naiha , Joerg Deiters , Ahila Krishnamoorthy , Eric H. Miller , J. Kevin Whear , Robert W. Saffel , Naoto Miyake , Kanak Kuwelkar
摘要： A battery separator has performance enhancing additives or coatings, fillers with increased friability, increased ionic diffusion, decreased tortuosity, increased wettability, reduced oil content, reduced thickness, decreased electrical resistance, and/or increased porosity. The separator in a battery reduces the water loss, lowers acid stratification, lowers the voltage drop, and/or increases the CCA. The separators include or exhibit performance enhancing additives or coatings, increased porosity, increased void volume, amorphous silica, higher oil absorption silica, higher silanol group silica, reduced electrical resistance, a shish-kebab structure or morphology, a polyolefin microporous membrane containing particle-like filler in an amount of 40% or more by weight of the membrane and ultrahigh molecular weight polyethylene having shish-kebab formations and the average repetition periodicity of the kebab formation from 1 nm to 150 nm, decreased sheet thickness, decreased tortuosity, separators especially well-suited for enhanced flooded batteries.
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公开(公告)号：US20200295335A1
公开(公告)日：2020-09-17
申请号：US16886805
申请日：2020-05-29
申请人： Daramic, LLC
摘要： An exemplary hybrid battery separator is provided with a porous sheet with a folded bottom edge and joined lateral edges that form a pocket. The folded bottom edge may have one or more openings or slits. The hybrid separators of the present disclosure are particularly useful for flat-plate cycling batteries. The separators of the present disclosure may effectively enhance the battery re-chargeability and the backup time. In addition, the separators of the present disclosure may contribute to the reduction of water loss in the battery, lowering the maintenance needs in service. It is expected that batteries having the separators of the present disclosure may be useful in various applications, such as in inverters, golf carts, as well as solar and traction applications.
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公开(公告)号：US10700330B2
公开(公告)日：2020-06-30
申请号：US15410138
申请日：2017-01-19
申请人： Daramic, LLC
摘要： The invention relates to a separator material (6) for forming a separator for a lead-acid accumulator, especially in the form of unfinished rolled product, and a method for the production thereof. The inventive separator material (6) comprises a first layer in the form of a microporous film (1) and at least one second layer in the form of a planar fleece material (7). At least one face of the microporous film (1), which is made of a thermoplastic material, is provided with a number of protrusions (2, 2′) defining an area with an increased film thickness on a basic film sheet. The fleece material (7) is welded to the film (1) by means of ultrasonic welding in such a way that the planar fleece material (7) is located at least at the level of the surface of the basic film sheet without invading the same in the area of the welded joints (8).
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公开(公告)号：US10673099B2
公开(公告)日：2020-06-02
申请号：US15959376
申请日：2018-04-23
申请人： Daramic, LLC
发明人： Jeffrey K. Chambers
摘要： In at least select embodiments, the instant disclosure is directed to new or improved battery separators, components, materials, additives, surfactants, lead acid batteries, systems, vehicles, and/or related methods of production and/or use. In at least certain embodiments, the instant disclosure is directed to surfactants or other additives for use with a battery separator for use in a lead acid battery, to battery separators with a surfactant or other additive, and/or to batteries including such separators. In at least certain select embodiments, the instant disclosure relates to new or improved lead acid battery separators and/or systems including improved water loss technology and/or methods of manufacture and/or use thereof. In at least select embodiments, the instant disclosure is directed toward a new or improved lead acid battery separator or system with one or more surfactants and/or additives, and/or methods for constructing lead acid battery separators and batteries with such surfactants and/or additives for improving and/or reducing water loss from the battery.
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