Hollingsworth & Vose Company

H&v Advanced Materials (india) Private Limited

Gubbi Krishnappa Natesh

Zhiping Jiang

John A Wertz

Akshay Ashirgade

Nicolas Clement

Richard O Angus, Jr

Krishna Marchigowda

Sachin Kumar

Harish Moddegowdru Ramaswamy

Basavaraju Girisha

Kameswara Rao Patchigolla Venkata

Mahadevaswamy Kodimole Mahadevappa

The present disclosure provides a method of casting ribs on substrate, said method comprising acts of, mounting applicator comprising plurality of nozzles and polymer filled into the applicator, placing the substrate below the nozzles of the applicator, applying pressure onto the melt polymer to cast plurality of polymer ribs of predetermined shape on the substrate, and cooling the substrate casted with ribs.

Battery separator with ribs and a method of casting the ribs on the separator

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

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Vijayanagara, India

Gubbi Krishnappa Natesh