公开(公告)号：US20230219330A1

公开(公告)日：2023-07-13

申请号：US17924076

申请日：2021-05-14

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： B32B27/12 ,  B01D69/02 ,  B01D71/26 ,  B32B5/02 ,  B32B27/20 ,  B32B27/22 ,  B32B27/32 ,  B32B7/12 ,  B32B7/02 ,  E04B1/62

CPC分类号： B32B27/12 ,  B01D69/02 ,  B01D71/261 ,  B32B5/024 ,  B32B5/022 ,  B32B27/20 ,  B32B27/22 ,  B32B27/32 ,  B32B5/028 ,  B32B7/12 ,  B32B7/02 ,  E04B1/625 ,  B01D2325/38 ,  B01D2325/20 ,  B01D2325/04 ,  B32B2307/73 ,  B32B2307/7246 ,  B32B2262/0253 ,  B32B2419/06 ,  B32B2307/744 ,  B32B2307/71

摘要： In at least one embodiment, a building material comprising a porous membrane having a moderate to high water vapor permeability and high liquid water penetration resistance is disclosed. The building material 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 porous membrane may include at least one thermoplastic polymer, at least one filler, and at least one processing oil. The porous membrane may be flat or may have ribs. The porous membrane may include at least one scrim component.

公开(公告)号：US20230198027A1

公开(公告)日：2023-06-22

申请号：US17923214

申请日：2021-05-04

申请人： Daramic, LLC

发明人： Kumar Manickam ,  J. Kevin Whear ,  Margaret R. Roberts

IPC分类号： H01M10/08 ,  H01M10/12 ,  H01M50/431

CPC分类号： H01M10/08 ,  H01M10/12 ,  H01M50/431 ,  H01M2220/20

摘要： A lead acid battery is disclosed comprising a positive electrode; a negative electrode; a separator; and an electrolyte comprising a metal sulfate; wherein lead sulfate crystals formed during cycling of the lead acid battery have an average diameter in one dimension of less than 1.1 microns, less than 1.0 microns, less than 0.95 microns, or less than 0.9 microns.

公开(公告)号：US11650256B2

公开(公告)日：2023-05-16

申请号：US16651634

申请日：2018-09-28

申请人： Daramic, LLC

发明人： Eric H. Miller ,  James P. Perry ,  Nicholas R. Shelton ,  Gregory L. Hall

IPC分类号： G01R31/379 ,  G01M7/06 ,  G01R31/385 ,  G01M99/00 ,  G01R31/36 ,  H01M10/06 ,  H01M10/42 ,  H01M50/463

CPC分类号： G01R31/379 ,  G01M7/06 ,  G01M99/004 ,  G01R31/3644 ,  G01R31/385 ,  H01M10/06 ,  H01M10/42 ,  H01M50/463

摘要： In accordance with at least selected embodiments, the present disclosure or invention is directed to novel or improved testing apparatus for testing lead acid batteries and/or their components, and/or the efficacy of their components, testing tables, testing systems, and/or related methods. In accordance with at least certain embodiments, the present disclosure or invention is directed to novel or improved methods for testing lead acid batteries and/or their components, and/or the efficacy of their components. In accordance with at least certain selected embodiments, the present disclosure or invention is directed to novel or improved systems for testing lead acid batteries and/or their components, and/or the efficacy of their components. In accordance with at least particular selected embodiments, the present disclosure or invention is directed to novel or improved apparatus and methods for testing a lead acid battery or batteries whereby the battery or batteries are subjected to motion typical of that experienced by the battery or batteries in use or in the field.

公开(公告)号：US11450924B2

公开(公告)日：2022-09-20

申请号：US16519312

申请日：2019-07-23

申请人： Daramic, LLC

发明人： Eric Henri Miller ,  John Randolph Timmons ,  John Kevin Whear

IPC分类号： H01M10/02 ,  H01M50/449 ,  H01M10/12 ,  H01M50/403 ,  H01M50/409 ,  H01M50/463 ,  B32B3/30 ,  B32B7/12

摘要： A battery separator for extending the cycle life of a battery has a separator and a conductive layer. The conductive layer is disposed upon the separator. The conductive layer is adapted to be in contact with the positive electrode of the battery thereby providing a new route of current to and from the positive electrode.

公开(公告)号：US20220190435A1

公开(公告)日：2022-06-16

申请号：US17686867

申请日：2022-03-04

申请人： Daramic, LLC

发明人： Eric H. Miller ,  J. Kevin Whear ,  Jeffrey K. Chambers

IPC分类号： H01M50/411 ,  H01M10/12 ,  H01M50/44 ,  H01M50/403

摘要： A battery separator for a lead/acid battery is resistant to oxidation arising from the use of water or acid containing contaminants, for example chromium (Cr), manganese (Mn), titanium (Ti), copper (Cu), and the like. The separator is a microporous membrane including a rubber. The rubber is no more than about 12% by weight of the separator. The rubber may be rubber latex, tire crumb, and combinations thereof. The rubber may be impregnated into the microporous membrane. The microporous membrane may be a microporous sheet of polyolefin, polyvinyl chloride, phenol-formaldehyde resins, cross-linked rubber, or nonwoven fibers. A method for preventing the oxidation and/or extending battery life of the separator is also included.

公开(公告)号：US11302991B2

公开(公告)日：2022-04-12

申请号：US15972741

申请日：2018-05-07

申请人： Daramic, LLC

发明人： Eric H. Miller ,  J. Kevin Whear ,  Jeffrey K. Chambers

IPC分类号： H01M50/411 ,  H01M10/12 ,  H01M50/429 ,  H01M50/44 ,  H01M50/403 ,  H01M10/06 ,  H01M50/431

摘要： A battery separator for a lead/acid battery is resistant to oxidation arising from the use of water or acid containing contaminants, for example chromium (Cr), manganese (Mn), titanium (Ti), copper (Cu), and the like. The separator is a microporous membrane including a rubber. The rubber is no more than about 12% by weight of the separator. The rubber may be rubber latex, tire crumb, and combinations thereof. The rubber may be impregnated into the microporous membrane. The microporous membrane may be a microporous sheet of polyolefin, polyvinyl chloride, phenol-formaldehyde resins, cross-linked rubber, or nonwoven fibers. A method for preventing the oxidation and/or extending battery life of the separator is also included.

公开(公告)号：US20220094015A1

公开(公告)日：2022-03-24

申请号：US17498778

申请日：2021-10-12

申请人： Daramic, LLC

发明人： Ahila Krishnamoorthy ,  Kumar Manickam ,  Robert Saffel

IPC分类号： H01M50/44 ,  H01M4/14 ,  H01M50/429 ,  H01M50/403 ,  H01M50/431 ,  H01M50/449 ,  H01M50/446

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.

公开(公告)号：US20220077505A1

公开(公告)日：2022-03-10

申请号：US17492714

申请日：2021-10-04

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： H01M10/12 ,  H01M50/403 ,  H01M50/411 ,  H01M50/431 ,  H01M50/449

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：US20210399385A1

公开(公告)日：2021-12-23

申请号：US17458921

申请日：2021-08-27

申请人： Daramic, LLC

发明人： Eric H. Miller ,  J. Kevin Whear ,  John R. Timmons ,  Jeffrey K. Chambers ,  Pierre A. Hauswald

IPC分类号： H01M50/449 ,  H01M50/44 ,  H01M50/411 ,  H01M50/431 ,  H01M50/463 ,  H01M10/12

摘要： A battery separator for a lead acid battery addresses the issues of acid stratification and separator oxidation arising from contaminants. The separator includes a microporous membrane and a diffusive mat affixed thereto. The diffusive mat has a three hour wick of: at least about 2.5 cm. The diffusive mat may be made of synthetic fibers, glass fibers, natural fibers, and combinations thereof. The diffusive mat may include silica. The separator may include a rubber.

公开(公告)号：US11183738B2

公开(公告)日：2021-11-23

申请号：US15624948

申请日：2017-06-16

申请人： Daramic, LLC

发明人： J. Kevin Whear ,  Eric H. Miller ,  Margaret R. Roberts

IPC分类号： H01M10/06 ,  H01M50/463 ,  H01M10/52 ,  H01M50/403 ,  H01M50/409

摘要： In accordance with at least selected embodiments or aspects, the present invention is directed to improved, unique, and/or complex performance lead acid battery separators, such as improved flooded lead acid battery separators, batteries including such separators, methods of production, and/or methods of use. The preferred battery separator of the present invention addresses and optimizes multiple separator properties simultaneously. It is believed that the present invention is the first to recognize the need to address multiple separator properties simultaneously, the first to choose particular multiple separator property combinations, and the first to produce commercially viable multiple property battery separators, especially such a separator having negative cross ribs.