The Gillette Company

Hollingsworth & Vose Company

Waters Technologies Corporation

Waters Investments Limited

Duracell U.S. Operations, Inc.

Zhiping Jiang

Kevin Daniel Wyndham

John E O'Gara

Raymond P Fisk

Akshay Ashirgade

Paul Albert Christian

William L Bowden

Thomas H Walter

Klaus Brandt

Darryl W Brousmiche

George M Cintra

Andrew G Gilicinski

Nicolas Clement

Michael Pozin

John A Wertz

Javit A Drake

Nikolay Krastev Iltchev

Rimma A Sirotina

Anna Maria Bofinger

Richard O Angus, Jr

Gubbi Krishnappa Natesh

Krishna Marchigowda

Steven Jeffrey Specht

Nikolai Nikolaevich Issaev

Fred Joseph Berkowitz

Maya Stevanovic

Leslie J Pinnell

Thomas C Richards

Yelena Kouznetsova

C Robert Parent

Sachin Kumar

Rita Komm

Mahadevaswamy Kodimole Mahadevappa

Harish Moddegowdru Ramaswamy

Basavaraju Girisha

Kameswara Rao Patchigolla Venkata

Barry D Josephs

Barry David Josephs

Yelena Valentinovna Kouznetsova

Battery separators comprising embossments are generally provided. The embossments may take the form of indentations formed in a surface of the battery separator, such as indentations formed by an embossing process. The embossments may comprise intersections with a first edge and a second edge of the battery separator, which may be the same or different.

Embossed separators

Battery separators are generally provided. In some embodiments, the battery separators may comprise a non-woven web including a plurality of inorganic particles (e.g., silica). The non-woven web may include, in some embodiments, a plurality of relatively coarse glass fibers (e.g., having an average diameter of greater than about 1.5 microns), e.g., such that the non-woven web has a particular largest pore size and median pore size. The combination of inorganic particles with a non-woven web having features described herein may exhibit enhanced electrolyte stratification distance and/or reduced electrolyte filling time. In some embodiments, such improvements may be achieved while having relatively minimal or no adverse effects on another property of the battery separator and/or the overall battery.

Battery separators comprising inorganic particles

Disclosed is a battery separator, comprising two fiber regions comprising glass fibers, and a middle fiber region disposed between them comprising larger average diameter fibers and specified amounts of silica, or fine fibers, or both; and processes for making the separator. Also disclosed is a battery separator, comprising a fiber region and either one or two silica-containing region(s) adjacent thereto, each of the regions containing a specified amount of silica; and processes for making the separator. Such separators are useful, e.g., in lead-acid batteries.

Multi-region battery separators

Non-woven webs that can be used as battery separators for batteries, such as lead acid batteries, are generally provided. In some embodiments, battery separators comprising a non-woven web including one or more chemical additives are provided. The chemical additives may impart beneficial properties, such as enhanced separator stability and/or battery performance. In some embodiments, the chemical additive(s) may confer resistance to oxidation, heavy metal deposition, and/or formation of short circuits during cycling of a battery including the battery separator. The respective characteristics and/or amounts of the chemical additive(s) may be selected to impart desirable properties while having relatively minimal or no adverse effects on another property of the battery separator and/or the battery.

Battery separators comprising chemical additives and/or other components

In some embodiments, a battery separator described herein may comprise a layer having a relatively low apparent density; for example, the density that includes any unoccupied space within the outermost boundaries of the layer may be relatively low. The low apparent density may be attributed to, at least in part, the geometry of the layer. For instance, in some embodiments, the layer may include undulations and/or have at least one non-planar surface (e.g., a corrugated layer; an embossed layer). In some embodiments, a battery comprising a layer having a relatively low apparent density may have desirable properties, including relatively low electrical resistance and/or relatively high capacity. The battery separators described herein may be well suited for a variety of battery types, including lead acid batteries.

Battery separators having a low apparent density

The present invention relates to porous inorganic/organic homogenous copolymeric hybrid material materials, including particulates and monoliths, methods for their manufacture, and uses thereof, e.g., as chromatographic separations materials.

Porous inorganic/organic homogenous copolymeric hybrid materials for chromatographic separations and process for the preparation thereof

Porous inorganic/organic homogenous copolymeric hybrid materials for chromatographic separation and process for the preparation thereof

Novel material for chromatographic separations, processes for its preparation, and separations devices containing the chromatographic material. In particular, the disclosure describes porous inorganic/organic hybrid particles having a chromatographically-enhancing pore geometry, which desirably may be surface modified, and that offer more efficient chromatographic separations than that known in the art.

Porous inorganic/organic hybrid particles for chromatographic separations and process for its preparation

An improved electrolyte for a cell having an anode comprising magnesium or magnesium alloy. The cell's cathode may desirably include iron disulfide (FeS) as cathode active material. The improved electrolyte comprises a magnesium salt, preferably magnesium perchlorate dissolved in an organic solvent which preferably includes acetonitrile or mixture of tetrahydrofuran and propylene carbonate. The electrolyte includes an additive to retard the buildup of deleterious passivation coating on the magnesium anode surface, thereby enhancing cell performance. Such additive may preferably include 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF), 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF), lithium hexafluorophosphate (LiPF), or aluminum chloride (AlCl).

Magnesium cell with improved electrolyte

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Westford, MA, United States of America

Zhiping Jiang