公开(公告)号：US20240145860A1

公开(公告)日：2024-05-02

申请号：US18408058

申请日：2024-01-09

申请人： Daramic, LLC

发明人： Margaret R. Roberts ,  Jeffrey K. Chambers ,  James Perry ,  J. Kevin Whear

IPC分类号： H01M50/383 ,  H01M10/12

CPC分类号： H01M50/383 ,  H01M10/12 ,  H01M2220/20 ,  Y02E60/10

摘要： New or improved lead acid batteries with vapor pressure barriers and/or improved battery separators, as well as systems, vehicles, and/or methods of manufacture and/or use thereof are disclosed herein. In at least select embodiments, the instant disclosure provides new or improved lead acid batteries with a vapor pressure barrier. In at least select embodiments, the instant disclosure provides new or improved lead acid battery vapor pressure barriers along with new or improved battery separators, and/or methods of manufacture and/or use thereof. In at least select embodiments, the instant disclosure provides a new or improved lead acid battery with a vapor pressure barrier that reduces the water loss from the battery. In at least select embodiments, a method of reducing the water loss of a lead acid battery may include providing a vapor pressure barrier, such as a layer of oil, inside the lead acid battery along with an improved battery separator.

公开(公告)号：US11870041B2

公开(公告)日：2024-01-09

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： H01M10/06 ,  H01M50/463 ,  H01M50/414 ,  H01M50/417 ,  H01M50/429 ,  H01M50/491 ,  H01M50/489

CPC分类号： H01M10/06 ,  H01M50/414 ,  H01M50/417 ,  H01M50/429 ,  H01M50/463 ,  H01M50/489 ,  H01M50/491 ,  H01M2220/20 ,  Y02E60/10

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：US11742550B2

公开(公告)日：2023-08-29

申请号：US16012920

申请日：2018-06-20

申请人： Daramic, LLC

发明人： J. Kevin Whear ,  Eric H. Miller ,  Naoto Miyake ,  Joerg Deiters

IPC分类号： H01M50/463 ,  H01M50/446 ,  H01M50/454 ,  H01M50/451 ,  H01M10/06

CPC分类号： H01M50/463 ,  H01M50/446 ,  H01M50/451 ,  H01M50/454 ,  H01M10/06

摘要： Disclosed herein are improved separators for lead acid batteries. The separators may include a porous membrane, a rubber, and at least one performance enhancing additive, positive and/or negative ribs, and/or lowered acid leachable total organic carbon.

公开(公告)号：US11664557B2

公开(公告)日：2023-05-30

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： H01M10/44 ,  H01M50/44 ,  H01M10/12 ,  B01D69/10 ,  H01M50/414 ,  H01M50/42 ,  H01M50/454 ,  H01M50/451 ,  H01M50/417 ,  H01M50/437 ,  H01M50/491 ,  H01M50/489

CPC分类号： H01M50/44 ,  B01D69/10 ,  H01M10/12 ,  H01M50/414 ,  H01M50/417 ,  H01M50/42 ,  H01M50/437 ,  H01M50/451 ,  H01M50/454 ,  B01D2325/02 ,  B01D2325/028 ,  B01D2325/20 ,  B01D2325/26 ,  H01M50/489 ,  H01M50/491

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：US20220302556A1

公开(公告)日：2022-09-22

申请号：US17639347

申请日：2020-09-01

申请人： Daramic, LLC

发明人： J. Kevin Whear ,  Susmitha Appikatla

IPC分类号： H01M50/431 ,  H01M50/449

摘要： An improved carbon for use in a lead acid battery is disclosed herein. Also disclosed, is a metal oxide or metal sulfate additive that may be used in conjunction with the improved carbon. Battery performance of lead acid batteries, particularly flooded lead acid batteries, is improved by the use of the improved carbon or the improved carbon and the metal oxide or metal sulfate additive. Improvements to one or more of cycle life, dynamic charge acceptance, and water loss are observed.

公开(公告)号：US10833306B2

公开(公告)日：2020-11-10

申请号：US15898705

申请日：2018-02-19

申请人： Daramic, LLC

发明人： Eric H. Miller ,  J. Kevin Whear

IPC分类号： H01M2/16 ,  H01M2/18 ,  H01M10/06

摘要： A separator for a lead acid battery is a porous membrane having a positive electrode face and a negative electrode face. A plurality of longitudinally extending ribs, a plurality of protrusions or a nonwoven material may be disposed upon the positive electrode face. A plurality of transversely extending ribs are disposed upon the negative electrode face. The transverse ribs disposed upon the negative electrode face are preferably juxtaposed to a negative electrode of the lead acid battery, when the separator is placed within that battery.

公开(公告)号：US10693118B2

公开(公告)日：2020-06-23

申请号：US15235197

申请日：2016-08-12

申请人： Daramic, LLC

发明人： Surendra Kumar Mittal ,  Naveen Prabhu Shanmugam ,  J. Kevin Whear ,  Eric H. Miller

IPC分类号： H01M2/18 ,  H01M2/16 ,  H01M10/12

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.

公开(公告)号：US10116007B2

公开(公告)日：2018-10-30

申请号：US14704244

申请日：2015-05-05

申请人： Daramic, LLC

发明人： J. Kevin Whear ,  James P. Perry ,  Jeffrey K. Chambers ,  Larry A. Spickard ,  John R. Timmons

IPC分类号： H01M2/16 ,  H01M10/12 ,  H01M4/02

摘要： New or improved battery separators for lead-acid batteries that include a carbon or mineral additive applied to the separator. In possibly preferred embodiments, the battery separator may include engineered carbon materials applied to the battery separator to modify sulfate crystal formation while decreasing the detrimental consequences of excessive gas evolution into the negative electrode itself. In one embodiment, a method of enhancing the lead-acid energy storage performance of a lead-acid battery may include delivering carbon to the negative active material surface of the battery separator where the carbon may effectively enhance charge acceptance and improve life cycle performance of a lead-acid battery.

公开(公告)号：US20180029276A1

公开(公告)日：2018-02-01

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： B29C47/00 ,  B01D67/00 ,  B01D71/26 ,  B29C55/00 ,  B29C55/18 ,  B29C67/20 ,  C08J5/18 ,  C08L23/06 ,  H01M2/14 ,  H01M2/16 ,  H01M2/18 ,  B29K23/00 ,  B29K105/04 ,  B29K105/16 ,  B29K507/04 ,  B29K509/00 ,  B29L31/34 ,  B29L31/00

CPC分类号： H01M2/166 ,  B01D67/0027 ,  B01D67/003 ,  B01D71/26 ,  B01D2323/00 ,  B01D2323/20 ,  B01D2325/34 ,  B29B7/90 ,  B29C48/0011 ,  B29C48/0018 ,  B29C48/022 ,  B29C48/08 ,  B29C55/005 ,  B29C55/18 ,  B29C67/202 ,  B29C70/58 ,  B29K2023/0683 ,  B29K2105/04 ,  B29K2105/16 ,  B29K2507/04 ,  B29K2509/00 ,  B29L2031/3468 ,  B29L2031/755 ,  C08J5/18 ,  C08J2323/06 ,  C08K3/36 ,  C08L23/06 ,  C08L2203/20 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2207/062 ,  C08L2207/068 ,  H01M2/145 ,  H01M2/1646 ,  H01M2/18 ,  H01M8/0289 ,  H01M8/1051 ,  H01M10/0525 ,  H01M10/06 ,  H01M2008/1095 ,  Y02P70/56 ,  Y10T428/249978 ,  Y10T428/249979 ,  Y10T428/249986 ,  C08L2666/06

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：US20170104199A1

公开(公告)日：2017-04-13

申请号：US15288496

申请日：2016-10-07

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： H01M2/18 ,  H01M10/06 ,  H01M2/16

CPC分类号： H01M2/18 ,  H01M2/1653 ,  H01M10/06 ,  H01M2220/20 ,  Y02E60/126

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.