Daramic, Inc.

Mohammed Naiha

J Kevin Whear

Eric Henri Miller

Ahila Krishnamoorthy

Robert Saffel

Naoto Miyake

Kanak Kuwelkar

Jörg Deiters

Jeffrey K Chambers

Tejas R Shah

Surendra Kumar Mittal

Kevin J Whear

Joerg Deiters

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. The separators include or exhibit performance enhancing additives or coatings, increased porosity, increased void volume, amorphous silica, higher oil absorption silica, higher silanol group silica, reduced electrical resistance, a shish-kebab structure or morphology, a polyolefin microporous membrane containing particle-like filler in an amount of 40% or more by weight of the membrane and ultrahigh molecular weight polyethylene having shish-kebab formations and the average repetition periodicity of the kebab formation from 1 nm to 150 nm, decreased sheet thickness, decreased tortuosity, separators especially well-suited for enhanced flooded batteries.

Separators for enhanced flooded batteries, batteries, and related methods

Disclosed herein are novel or improved separators, battery separators, lead acid battery separators, batteries, cells, and/or methods of manufacture and/or use of such separators, battery separators, lead acid 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. In addition, disclosed herein are methods, systems and battery separators for enhancing battery life, reducing water loss, reducing float current, minimizing internal resistance increase, reducing failure rate, reducing acid stratification and/or improving uniformity in at least lead acid batteries. In accordance with at least particular embodiments, the present disclosure or invention is directed to an improved separator for lead acid batteries wherein the separator includes improved coatings, improved configurations, and/or the like.

Separators, lead acid batteries, and methods and systems associated therewith

A separator is provided with a novel construction and/or a combination of improved properties. Batteries, methods, and systems associated therewith are also provided. In certain embodiments, novel or improved separators, battery separators, enhanced flooded battery separators, batteries, cells, and/or methods of manufacture and/or use of such separators, battery separators, enhanced flooded battery separators, cells, and/or batteries are provided. In addition, there is disclosed herein methods, systems, and battery separators having a reduced ER, improved puncture strength, improved separator CMD stiffness, improved oxidation resistance, reduced separator thickness, reduced basis weight, and any combination thereof. In accordance with at least certain embodiments, separators are provided in battery applications for flat-plate batteries, tubular batteries, vehicle SLI, and HEV ISS applications, deep cycle applications, golf car or golf cart, and e-rickshaw batteries, batteries operating in a partial state of charge ('PSOC'), inverter batteries; and storage batteries for renewable energy sources, and any combination thereof.

A lead-acid battery separator comprised of a porous membrane substrate having a front surface and a back surface and said front surface having a plurality of ribs. To enhance the substrate's stiffness, one or more coatings of a stiffening material may be adhered to the ribs on the substrate's surface.

Lead-acid battery separator having enhanced stiffness

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Chatenois, France

Mohammed Naiha