Battery separator structures
AssigneeP. H. Glatfelter Company
InventorWilliam N. Justice
Life of this patent
Estimating the term…
Abstract
A multilayer composite sheet for use in a lead-acid battery includes a) a base layer including paper or a glass fiber mat; b) a layer of polymeric nanofibers bonded with discrete adhesive particles to a first surface of the base layer; and c) a scrim layer bonded with discrete adhesive particles to a surface of the layer of nanofibers opposite the base layer. A plate assembly for a lead-acid battery includes one or more multilayer composite sheets located adjacent or partially enclosing a lead plate.
Claims15
A multilayer composite sheet for use in a lead-acid battery, comprising
- a) a base layer comprising paper or a glass fiber mat;
- b) a layer of polymeric nanofibers bonded with discrete adhesive particles to a first surface of the base layer;
- and
- c) a scrim layer bonded with discrete adhesive particles to a surface of the layer of nanofibers opposite the base layer.
A plate assembly for a lead-acid battery, comprising a lead plate having first and second opposing surfaces coated respectively with first and second layers comprising lead oxide, said first and second layers contacting first and second multilayer composite sheets respectively, each of said composite sheets comprising:
- a) a paper base layer;
- b) a layer of polymeric nanofibers bonded with discrete adhesive particles to a first surface of the paper base layer;
- and
- c) a scrim layer bonded with discrete adhesive particles to a surface of the layer of nanofibers opposite the paper base layer;
- wherein each of the first and second layers of the plate is adjacent and bonded to the paper base layer of the first and second multilayer composite sheets respectively on a second surface thereof opposite the first surface, and wherein the first and second multilayer composite sheets are adhered together so as to enclose the lead plate on three sides.
A plate assembly for a lead-acid battery, comprising a lead plate having first and second opposing surfaces coated respectively with first and second layers comprising lead oxide, at least one of said first and second layers contacting a multilayer composite sheet comprising:
- a) a glass fiber mat base layer;
- b) a layer of polymeric nanofibers bonded with discrete adhesive particles to a first surface of the glass fiber mat base layer;
- and
- c) a scrim layer bonded with discrete adhesive particles to a surface of the layer of nanofibers opposite the glass fiber mat base layer;
- wherein said at least one of the first and second layers of the plate is adjacent the glass fiber mat base layer of the multilayer composite sheet on a second surface thereof opposite the first surface.
Dependencies are inferred from the claim text.