Positive lead-acid battery grids and cells and batteries using such grids
AssigneeGNB Technologies, Inc.
InventorPurushothama Rao
Life of this patent
Estimating the term…
Abstract
Positive grids for lead-acid batteries for SLI, industrial battery, and electric vehicle batteries are disclosed in which the positive active material paste pellet openings have a reduced area and the number per square inch of the grid area are increased, the individual areas and the number of paste pellets varying with the intended application, and the preferred embodiments including reduced distances from the center of the paste pellet to the adjacent grid wires, as well as an optimized amount of positive active material per area of the grid wire surface area so as to allow enhanced electrical performance, if desired, or substantial savings in grid weight while achieving electrical performance commensurate with conventional lead-acid cells and batteries.
Claims39
A SLI lead-acid battery positive plate comprising a grid having a lug, a top frame bar to which the lug is connected and a grid mesh defining paste pellet openings and positive active material adhered to said grid mesh, the area of said paste pellet openings being from about 0.035 to about 0.095 square inches and from about 10.5 to about 28 paste pellet openings per square inch of grid mesh area.
A SLI lead-acid battery positive plate comprising a grid having a lug, a top frame bar to which the lug is connected, an expanded grid mesh and a bottom frame bar, the expanded grid mesh being connected and positioned between the top and bottom frame bars, positive active material adhered to the expanded grid mesh, the expanded grid mesh defining paste pellet openings having a diamond shape and said grid having at least 17 diamonds measured along a line from the top to the bottom frame bar.
A lead-acid positive plate suitable for an industrial battery comprising a grid having a lug, a top frame bar to which the lug is connected, a grid mesh, and a bottom frame bar, and vertical side frame bars, the grid mesh being connected and positioned between the top, vertical and bottom frame bars, positive active material adhered to said grid mesh, the grid mesh defining paste pellet openings having an area of from about 0.1 to about 0.4 square inches, and said grid having from about 2.5 to 10 paste pellet openings per square inch of grid mesh.
A lead-acid positive plate suitable for an electric vehicle comprising a grid having a lug, a top frame bar to which the lug is connected, a grid mesh and a bottom frame bar, the grid mesh being connected and positioned between the top and bottom frame bars, positive active material adhered to said grid mesh, said grid mesh defining a plurality of paste pellet openings having an area of from about 0.04 to 0.14 square inches and from about 7 to about 25 paste pellet openings per square inch of said grid mesh.
Dependencies are inferred from the claim text.