公开(公告)号：US11563256B2

公开(公告)日：2023-01-24

申请号：US15723639

申请日：2017-10-03

申请人： Daramic, LLC

发明人： Eric H. Miller ,  Joseph G. Yaritz ,  Mark T. Demeuse ,  J. Kevin Whear

IPC分类号： H01M50/446 ,  B29C48/00 ,  B29C48/08 ,  B01D67/00 ,  B01D71/26 ,  C08J5/18 ,  C08L23/06 ,  H01M50/403 ,  H01M50/431 ,  H01M50/463 ,  B29C67/20 ,  B29B7/90 ,  B29C70/58 ,  C08K3/36 ,  H01M8/1051 ,  H01M10/0525 ,  H01M10/06 ,  H01M8/0289 ,  B29K23/00 ,  B29K105/04 ,  B29K105/16 ,  B29K507/04 ,  B29K509/00 ,  B29L31/34 ,  B29L31/00 ,  H01M8/10

摘要： A method for producing a microporous material comprising the steps of: providing an ultrahigh molecular weight polyethylene (UHMWPE); providing a filler; providing a processing plasticizer; adding the filler to the UHMWPE in a mixture being in the range of from about 1:9 to about 15:1 filler to UHMWPE by weight; adding the processing plasticizer to the mixture; extruding the mixture to form a sheet from the mixture; calendering the sheet; extracting the processing plasticizer from the sheet to produce a matrix comprising UHMWPE and the filler distributed throughout the matrix; stretching the microporous material in at least one direction to a stretch ratio of at least about 1.5 to produce a stretched microporous matrix; and subsequently calendering the stretched microporous matrix to produce a microporous material which exhibits improved physical and dimensional stability properties over the stretched microporous matrix.

公开(公告)号：US20230020720A1

公开(公告)日：2023-01-19

申请号：US17783512

申请日：2020-12-07

申请人： Daramic, LLC

发明人： J. Kevin Whear ,  Eric H. Miller

IPC分类号： H01M50/454 ,  H01M10/12 ,  H01M50/417 ,  H01M50/434 ,  H01M50/446 ,  H01M50/489

摘要： Disclosed in at least one embodiment herein is a battery separator comprising a substrate that may be polymeric and porous. The substrate may have ribs, protrusions, or ribs and protrusions on one or both faces or surfaces thereof. On at least one surface or face of the substrate, a material layer may be formed. The material layer may contain a material with an oil absorption value equal to or greater than 15 g oil/100 g of material. The battery separator disclosed herein is useful in a lead acid battery, particularly in a flooded lead acid battery or a valve-regulated lead acid (VRLA) battery. The battery separator described herein has many benefits including helping mitigate or prevent issues such as acid stratification and others that may deteriorate battery performance or battery life.

公开(公告)号：US20220186029A1

公开(公告)日：2022-06-16

申请号：US17678503

申请日：2022-02-23

申请人： Daramic, LLC

发明人： J. Kevin Whear ,  John R. Timmons ,  Jeffrey K. Chambers ,  Tejas R. Shah

IPC分类号： C08L89/00 ,  H01M10/10 ,  H01M50/44 ,  H01M50/463

摘要： In accordance with at least selected embodiments or aspects, the present invention is directed to improved, unique, and/or high performance ISS lead acid battery separators, such as improved ISS flooded lead acid battery separators, ISS batteries including such separators, methods of production, and/or methods of use. The preferred ISS separator may include negative cross ribs and/or PIMS minerals. In accordance with more particular embodiments or examples, a PIMS mineral (preferably fish meal, a bio-mineral) is provided as at least a partial substitution for the silica filler component in a silica filled lead acid battery separator (preferably a polyethylene/silica separator formulation). In accordance with at least selected embodiments, the present invention is directed to new or improved batteries, separators, components, and/or compositions having heavy metal removal capabilities and/or methods of manufacture and/or methods of use thereof.

公开(公告)号：US20220119640A1

公开(公告)日：2022-04-21

申请号：US17531833

申请日：2021-11-22

申请人： Daramic, LLC

发明人： Jeffrey K. Chambers ,  Tejas R. Shah

IPC分类号： C08L89/00 ,  H01M10/10 ,  H01M50/446

摘要： In accordance with at least certain embodiments of the present invention, a novel concept of utilizing PIMS minerals as a filler component within a microporous lead-acid battery separator is provided. In accordance with more particular embodiments or examples, the PIMS mineral (preferably fish meal, a bio-mineral) is provided as at least a partial substitution for the silica filler component in a silica filled lead acid battery separator (preferably a polyethylene/silica separator formulation). In accordance with at least selected embodiments, the present invention is directed to new or improved batteries, separators, components, and/or compositions having heavy metal removal capabilities and/or methods of manufacture and/or methods of use thereof.

公开(公告)号：US11208558B2

公开(公告)日：2021-12-28

申请号：US16449686

申请日：2019-06-24

申请人： Daramic, LLC

发明人： Jeffrey K. Chambers ,  Tejas R. Shah

IPC分类号： C08L89/00 ,  H01M10/10 ,  H01M50/446 ,  H01M50/463

摘要： In accordance with at least certain embodiments of the present invention, a novel concept of utilizing PIMS minerals as a filler component within a microporous lead-acid battery separator is provided. In accordance with more particular embodiments or examples, the PIMS mineral (preferably fish meal, a bio-mineral) is provided as at least a partial substitution for the silica filler component in a silica filled lead acid battery separator (preferably a polyethylene/silica separator formulation). In accordance with at least selected embodiments, the present invention is directed to new or improved batteries, separators, components, and/or compositions having heavy metal removal capabilities and/or methods of manufacture and/or methods of use thereof.

公开(公告)号：US20210395528A1

公开(公告)日：2021-12-23

申请号：US17463116

申请日：2021-08-31

申请人： Daramic, LLC

发明人： J. Kevin Whear ,  John R. Timmons ,  Jeffrey K. Chambers ,  Tejas R. Shah

IPC分类号： C08L89/00 ,  H01M10/10 ,  H01M50/44 ,  H01M50/463

摘要： In accordance with at least selected embodiments or aspects, the present invention is directed to improved, unique, and/or high performance ISS lead acid battery separators, such as improved ISS flooded lead acid battery separators, ISS batteries including such separators, methods of production, and/or methods of use. The preferred ISS separator may include negative cross ribs and/or PIMS minerals. In accordance with more particular embodiments or examples, a PIMS mineral (preferably fish meal, a bio-mineral) is provided as at least a partial substitution for the silica filler component in a silica filled lead acid battery separator (preferably a polyethylene/silica separator formulation). In accordance with at least selected embodiments, the present invention is directed to new or improved batteries, separators, components, and/or compositions having heavy metal removal capabilities and/or methods of manufacture and/or methods of use thereof.

公开(公告)号：US20210336310A1

公开(公告)日：2021-10-28

申请号：US17359510

申请日：2021-06-26

申请人： DARAMIC, LLC

发明人： Eric H. Miller ,  Ahila Krishnamoorthy ,  James P. Perry ,  J. Kevin Whear

IPC分类号： 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.

公开(公告)号：US20210242449A1

公开(公告)日：2021-08-05

申请号：US17049163

申请日：2019-04-18

申请人： DARAMIC, LLC

发明人： Jorg Deiters ,  Matthew Stainer ,  Anna L. Verderame ,  J. Kevin Whear

IPC分类号： H01M4/14 ,  H01M50/46 ,  H01M10/12

摘要： A flooded lead acid battery and a vehicle comprising the same are described herein. The flooded lead acid battery comprises an electrode array, comprising one or more negative plates and one or more positive plates alternately arranged and interleafed with one another. In some embodiments, a negative plate is wrapped or enveloped with a fibrous mat, and a porous membrane is wrapped or enveloped about an adjacent positive electrode. In some embodiments, a fibrous mat is at least partially integrated into a negative plate, and a porous membrane is enveloped about either the negative plate with the fibrous mat partially integrated therein or around an adjacent positive plate. In other embodiments, a negative plate is enveloped with a porous membrane having ribs, and a fibrous mat is present between the wrapped negative plate and the porous membrane enveloping the negative plate. Methods, systems, and vehicles utilizing the disclosed batteries are also provided.

公开(公告)号：US20210203038A1

公开(公告)日：2021-07-01

申请号：US17191732

申请日：2021-03-04

申请人： DARAMIC, LLC

发明人： Eric H. Miller ,  M. Neal Golovin ,  Ahila Krishnamoorthy ,  Matthew Howard ,  James P. Perry ,  J. Kevin Whear

IPC分类号： H01M50/463 ,  H01M10/06 ,  H01M50/411

摘要： Improved battery separators are disclosed herein for use in flooded lead-acid batteries, and in particular enhanced flooded lead-acid batteries. The improved separators disclosed herein provide for enhanced electrolyte mixing and substantially reduced acid stratification. The improved flooded lead-acid batteries may be advantageously employed in applications in which the battery remains in a partial state of charge, for instance in start/stop vehicle systems. Also, improved lead-acid batteries, such as flooded lead-acid batteries, improved systems that include a lead-acid battery and a battery separator, improved battery separators, improved vehicles including such systems, and/or methods of manufacture and/or use may be provided.

公开(公告)号：US20210113970A1

公开(公告)日：2021-04-22

申请号：US16754149

申请日：2018-10-09

申请人： DARAMIC, LLC

发明人： Matthew STAINER ,  Eric H. MILLER ,  Matt J. WOLSKI ,  Tyler MUNHOLLON ,  Daniel R. ALEXANDER ,  Gary L. FULKERSON

IPC分类号： B01D69/14 ,  B01D69/02 ,  B01D67/00 ,  B01D71/02 ,  B01D71/26 ,  B32B5/02 ,  B32B27/12 ,  B32B27/32 ,  B32B27/30 ,  B32B3/30 ,  B29C48/00 ,  E04B1/62 ,  E04B1/78 ,  E04B1/84 ,  E04D12/00

摘要： In at least one embodiment, a microporous membrane having a moderate to high water vapor permeability and high liquid water penetration resistance is disclosed. The microporous membrane may be used in building applications, including as or as part of a building wrap, a rain screen, a roofing underlayment, a flashing, a sound proofing material, or an insulation material. The microporous membrane may include at least one thermoplastic polymer, at least one filler, and at least one processing oil. The microporous membrane may be flat or may have ribs. The microporous membrane may include at least one scrim component. A method for forming the microporous membrane is also disclosed.