公开(公告)号：US20160344036A1

公开(公告)日：2016-11-24

申请号：US15159925

申请日：2016-05-20

Applicant: Daramic, LLC

Inventor： J. Kevin Whear ,  Jeffrey K. Chambers ,  Robert W. Saffel ,  Eric H. Miller

IPC: H01M4/62 ,  H01M2/16 ,  H01M2/18 ,  H01M10/12 ,  H01M4/14

CPC classification number: H01M2/1653 ,  H01M2/1613 ,  H01M2/166 ,  H01M2/18 ,  H01M10/12

Abstract: Disclosed herein are novel or improved porous polyolefinic plate wrap materials for batteries, improved wrapped plates, improved systems, improved batteries or cells, non-PVC plate wraps, non-PVC wrapped plates, non-PVC batteries, and/or methods of production and/or use thereof. The use of such polyolefinic wraps may simplify the construction of batteries, produce more efficient or robust batteries, and/or the like.

Abstract translation: 本文公开了用于电池，改进的包裹板，改进的系统，改进的电池或电池，非PVC板包装，非PVC包装板，非PVC电池和/或生产方法的新颖或改进的多孔聚烯烃板包装材料 /或使用它们。 使用这种聚烯烃包装可以简化电池的构造，制造更有效或更坚固的电池和/或类似物。

公开(公告)号：US20140255752A1

公开(公告)日：2014-09-11

申请号：US14200066

申请日：2014-03-07

Applicant: Daramic, LLC

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

IPC: H01M2/16

Abstract: 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.

Abstract translation: 用于铅酸电池的电池分离器解决了由污染物引起的酸分层和分离器氧化的问题。 分离器包括微孔膜和固定在其上的漫射垫。 扩散垫具有三个小时的芯：至少约2.5cm。 漫射垫可以由合成纤维，玻璃纤维，天然纤维及其组合制成。 漫射垫可以包括二氧化硅。 隔板可以包括橡胶。

公开(公告)号：US20250070393A1

公开(公告)日：2025-02-27

申请号：US18699278

申请日：2022-10-18

Applicant: Asahi Kasei Kabushiki Kaisha ,  Daramic, LLC

Inventor： Hirofumi Goshima ,  Bo Zhao ,  Naoto Miyake ,  Mattanachai Chayangkul ,  Jean-Baptiste Lestrade

IPC: H01M50/463 ,  H01M10/12

Abstract: [OBJECT] The present invention aims to provide suitable workability of an envelope-shaped separator for a lead-acid battery.
[SOLVING MEANS] Provided is a separator for a flooded lead-acid battery, the separator including a porous base part, side end parts arranged on width direction ends of the porous base part, and a central part interposed by the side end parts, wherein a first rib is arranged in the central part and second ribs are arranged in the side end parts, the first rib has a rib height greater than that of the second ribs, the ratio of the width (U) between both upper end parts to the rib height (H) of a rib width direction cross-section of the second ribs is 0.08 to 5.50 and the ratio of the width(S) between both lower end parts to the rib height (H) thereof is 0.13 to 6.50, the second ribs have radii of curvature (1, 2) at both upper end parts and both lower end parts of the rib width direction cross-section, and the radii of curvature (1, 2) are in the range of 0.005 to 0.350 mm.

公开(公告)号：US12237534B2

公开(公告)日：2025-02-25

申请号：US18601049

申请日：2024-03-11

Applicant: Daramic, LLC

Inventor： Eric H. Miller ,  J. Kevin Whear

IPC: H01M50/44 ,  H01M50/417 ,  H01M50/449 ,  H01M50/463 ,  H01M10/06 ,  H01M50/466 ,  H01M50/489 ,  H01M50/491

Abstract: 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：US20250046881A1

公开(公告)日：2025-02-06

申请号：US18926497

申请日：2024-10-25

Applicant: Daramic, LLC

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

IPC: H01M10/12 ,  H01M10/06 ,  H01M50/403 ,  H01M50/414 ,  H01M50/417 ,  H01M50/429 ,  H01M50/44 ,  H01M50/491

Abstract: 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：US20240405374A1

公开(公告)日：2024-12-05

申请号：US18795232

申请日：2024-08-06

Applicant: Daramic, LLC

Inventor： J. Kevin Whear

IPC: H01M50/463 ,  H01M10/14 ,  H01M50/403 ,  H01M50/406 ,  H01M50/451 ,  H01M50/489

Abstract: Disclosed herein are exemplary embodiments of improved separators for lead acid batteries, improved lead acid batteries incorporating the improved separators, and vehicles, devices, or systems incorporating the same. A lead acid battery separator is provided with a porous membrane with a plurality of ribs extending from a surface thereon. The plurality of ribs preferably includes both positive ribs and negative ribs having similar heights. The ribs are provided with a plurality of discontinuous peaks arranged such as to provide resilient support for the porous membrane in order to resist forces exerted by active material swelling and thus mitigate the effects of acid starvation associated with such swelling, and increasing the acid availability at the electrodes. A lead acid battery is further provided that incorporates the provided separator. Such a lead acid battery may be a flooded lead acid battery, an enhanced flooded lead acid battery, a gel battery, an AGM battery, and may be provided as operating in a partial state of charge. Systems incorporating such a lead acid battery are also provided, such as a vehicle or any other energy storage system, such as solar or wind energy collection. Other exemplary embodiments are provided such as to have any one or more of the following: increased or improved acid availability, reduced or mitigated acid starvation, and other improvements.

公开(公告)号：US12159976B2

公开(公告)日：2024-12-03

申请号：US17686867

申请日：2022-03-04

Applicant: Daramic, LLC

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

IPC: H01M50/44 ,  H01M10/12 ,  H01M50/403 ,  H01M50/414 ,  H01M50/417 ,  H01M50/429 ,  H01M50/491 ,  H01M10/06

Abstract: 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：US20240234957A1

公开(公告)日：2024-07-11

申请号：US18581438

申请日：2024-02-20

Applicant: Daramic, LLC

Inventor： Surendra K. Mittal ,  Jeffrey K. Chambers ,  Jörg Deiters

IPC: H01M50/463 ,  H01M10/12 ,  H01M50/417 ,  H01M50/449 ,  H01M50/451 ,  H01M50/466 ,  H01M50/469 ,  H01M50/489

CPC classification number: H01M50/463 ,  H01M50/417 ,  H01M50/449 ,  H01M50/451 ,  H01M50/466 ,  H01M50/469 ,  H01M10/12 ,  H01M50/489 ,  H01M2220/20 ,  Y02E60/10

Abstract: New, improved or optimized battery separators, components, batteries, industrial batteries, inverter batteries, batteries for heavy or light industrial applications, forklift batteries, float charged batteries, inverters, accumulators, systems, methods, profiles, additives, compositions, composites, mixes, coatings, and/or related methods of water retention, water loss prevention, improved charge acceptance, production, use, and/or combinations thereof are provided or disclosed. More particularly, the present invention is directed to one or more improved battery separators having various improvements that may result in decreased water loss for a battery in which such a separator is incorporated, enhanced charge acceptance, or combinations thereof. Additionally, the present invention relates to one or more improved battery separators having various improvements with regard to shape, and/or physical profile, and/or chemical(s), additives, mixes, coatings, and/or the like used to make such battery separators (such as oil(s), and/or chemical additive(s) or agents used to coat, finish or improve such battery separators (such as surfactant(s))). The improved battery separators of the instant invention are particularly useful in or with industrial batteries, such as inverter batteries, batteries for heavy or light duty industrial applications, and so forth.

公开(公告)号：US20240136663A1

公开(公告)日：2024-04-25

申请号：US17768859

申请日：2020-10-26

Applicant: Daramic, LLC

Inventor： Miller Eric H.

IPC: H01M50/463 ,  H01M10/14 ,  H01M50/489

CPC classification number: H01M50/463 ,  H01M10/14 ,  H01M50/489 ,  H01M2220/10 ,  H01M2220/20

Abstract: A compressible battery separator is provided with capabilities to accommodate varying spacing between electrodes in a lead acid battery. Battery separators, cells, batteries, systems, and methods of manufacture and methods of use are disclosed herein.

公开(公告)号：US20240097277A1

公开(公告)日：2024-03-21

申请号：US18510697

申请日：2023-11-16

Applicant: Daramic, LLC

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

IPC: H01M50/446 ,  B01D67/00 ,  B01D71/26 ,  B29B7/90 ,  B29C48/00 ,  B29C48/08 ,  B29C67/20 ,  B29C70/58 ,  C08J5/18 ,  C08K3/36 ,  C08L23/06 ,  H01M8/1051 ,  H01M10/0525 ,  H01M10/06 ,  H01M50/403 ,  H01M50/431 ,  H01M50/434 ,  H01M50/463 ,  H01M50/489 ,  H01M50/491 ,  H01M50/494

CPC classification number: H01M50/446 ,  B01D67/0027 ,  B01D67/003 ,  B01D71/26 ,  B29B7/90 ,  B29C48/0011 ,  B29C48/0018 ,  B29C48/022 ,  B29C48/08 ,  B29C67/202 ,  B29C70/58 ,  C08J5/18 ,  C08K3/36 ,  C08L23/06 ,  H01M8/1051 ,  H01M10/0525 ,  H01M10/06 ,  H01M50/403 ,  H01M50/431 ,  H01M50/434 ,  H01M50/463 ,  H01M50/489 ,  H01M50/491 ,  H01M50/494 ,  H01M8/0289 ,  Y10T428/249978 ,  Y10T428/249979 ,  Y10T428/249986

Abstract: 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.