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Daramic Llc patents


Recent patent applications related to Daramic Llc. Daramic Llc is listed as an Agent/Assignee. Note: Daramic Llc may have other listings under different names/spellings. We're not affiliated with Daramic Llc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "D" | Daramic Llc-related inventors


Composite layers or separators for lead acid batteries

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.. ... Daramic Llc

Oxidation protected separator

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. ... Daramic Llc

Water loss separators used with lead acid batteries, systems for improved water loss performance, and methods of manufacture and use thereof

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. ... Daramic Llc

Battery separators with cross ribs and related methods

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. ... Daramic Llc

Battery separator with improved oxidation stability

The invention relates to a thermoplastic polymer-based battery separator, which contains a compound of formula r (or1)n(coomx+1/x)m. In said formula, r represents a non-aromatic hydrocarbon group comprising between 10 and 4,200 carbon atoms, which can be interrupted by oxygen atoms, r1 represents h, —(ch2)kcoomx+1/x or —(ch2)k—so3mx+1/x, whereby k stands for 1 or 2, m represents an alkali or earth alkaline metal ion, h+ or nh4+, whereby not all variables of m are defined simultaneously as h+, n stands for 0 or 1, m stands for 0 or a whole number from 10 to 1,400 and x stands for 1 or 2. ... Daramic Llc

Method of making a microporous material

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.. . ... Daramic Llc

Separators for enhanced flooded batteries, batteries, and related methods

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. ... Daramic Llc

Lead acid battery separators, batteries and related methods

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. ... Daramic Llc

Batteries, separators, components, and compositions with heavy metal removal capability and related methods

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). ... Daramic Llc

Microporous material and a method of making same

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.. . ... Daramic Llc

Battery separators for e-rickshaw and similar vehicle lead acid batteries

Disclosed herein are novel or improved separators, battery separators, lead battery separators, batteries, cells, and/or methods of manufacture and/or use of such separators, battery separators, lead battery separators, cells, and/or batteries. In accordance with at least certain embodiments, the present disclosure or invention is directed to novel or improved battery separators for lead acid batteries. ... Daramic Llc

Separator material for forming a separator for a lead-acid accumulator

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). ... Daramic Llc

Absorbent glass mat separators, vrla batteries, and related methods of manufacture and use

Disclosed herein are soluble content absorbent glass mats or agm separators for vrla, agm, or vrla agm batteries. Such glass mats may be prepared from insoluble glass fibers blended with soluble content materials. ... Daramic Llc

Battery separator for extending the cycle life of a battery

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. ... Daramic Llc

04/13/17 / #20170104199

Lead-acid battery separators with improved performance and batteries and vehicles with the same and related methods

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. ... Daramic Llc

04/06/17 / #20170098810

Functionalized lead acid battery separators, improved lead acid batteries, and related methods

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. ... Daramic Llc

03/16/17 / #20170077479

Laminated oxidation protected separator

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. ... Daramic Llc

03/16/17 / #20170072610

Microporous material and a method of making same

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.. . ... Daramic Llc

02/23/17 / #20170054123

Separators, batteries, battery strings with improved performance, and related methods

Improved battery separators are disclosed herein for use in various lead acid batteries, and in particular lead acid battery strings. The improved separators, batteries, battery strings, methods, and vehicles disclosed herein provide substantially increased battery life, substantially reduced battery fail rate, and substantially higher voltage uniformity among the various batteries in a battery string. ... Daramic Llc

02/16/17 / #20170047615

Separators for flat plate batteries, improved batteries, and related methods

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. ... Daramic Llc








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