Battery grid

Patent metadata

Field	Value
Publication number	US-2019393512-A1
Application number	US-201816481355-A
Country	US
Kind code	A1
Filing date	Jan 26, 2018
Priority date	Jan 27, 2017
Publication date	Dec 26, 2019
Grant date	—

Abstract

A grid for an absorbent glass mat lead acid battery is also disclosed. The grid has a frame formed of a top frame element having a current collection lug, a first side frame element, a second side frame element, and a bottom frame element. A plurality of grid wires are arranged in radial configuration within the frame which radial configuration emanates from a radiant point located outside a boundary of the frame. A plurality of horizontal grid wires cross the plurality of grid wires arranged the radial configuration. The grid comprises virgin lead or high purity lead or highly purified secondary lead. An absorbent glass mat lead acid battery is also disclosed.

First claim

1 . An absorbent glass mat lead acid battery comprising:
a housing having a plurality of electrochemical cells formed by: a plurality of positive plates each comprising a positive grid and a positive paste thereon; a plurality of negative plates each comprising a negative grid and a negative paste thereon; an absorbent glass mat interleaved between each positive plate and each negative plate; and an electrolyte retained by the absorbent glass mat; wherein the positive grid and negative grid each comprise a frame formed of a top frame element having a current collection lug, a first side frame element, a second side frame element, and a bottom frame element, a plurality of grid wires arranged in radial configuration within the frame which radial configuration emanates from a radiant point located outside a boundary of the frame, a plurality of horizontal grid wires crossing the plurality of grid wires arranged the radial configuration; and wherein the positive grid and negative grid each comprise virgin lead or high purity lead or highly purified secondary lead.

2 . The battery of claim 1 , wherein the positive grid and negative grid each comprise 99.9-99.99% purity lead.

3 . The battery of claim 1 , wherein the grid pattern includes a partial horizontal grid wire immediately adjacent the top frame element.

4 . The battery of claim 1 , wherein the grid is formed by casting a strip of lead and punching the strip to remove material.

5 . The battery of claim 1 , wherein the radially extending grid wires extend within a range of approximately 0.5 degrees to approximately 26.5 degrees from an imaginary line extending perpendicular to the top frame.

6 . The battery of claim 1 , wherein the radiant point is on a radius line running through an imaginary line perpendicular to the top frame element.

7 . A grid for an absorbent glass mat lead acid battery comprising:
a frame formed of a top frame element having a current collection lug, a first side frame element, a second side frame element, and a bottom frame element; a plurality of grid wires arranged in radial configuration within the frame which radial configuration emanates from a radiant point located outside a boundary of the frame; a plurality of horizontal grid wires crossing the plurality of grid wires arranged the radial configuration; and wherein the grid comprises virgin lead or high purity lead or highly purified secondary lead.

8 . The grid of claim 7 , further comprising 99.9-99.99% purity lead.

9 . The grid of claim 7 , wherein the grid is a positive grid.

10 . The grid of claim 7 , wherein the grid is a negative grid.

11 . A lead acid battery wherein both the positive grid and the negative grid comprise the grid of claim 7 .

12 . The grid of claim 7 , wherein the grid is formed by casting a strip of lead and punching the strip to remove material.

13 . The grid of claim 7 , wherein the radially extending grid wires extend within a range of approximately 0.5 degrees to approximately 26.5 degrees from an imaginary line extending perpendicular to the top frame.

14 . The grid of claim 7 , wherein the radiant point is on a radius line running through an imaginary line perpendicular to the top frame element.

15 . The grid of claim 7 , wherein the grid pattern includes a partial horizontal grid wire immediately adjacent the top frame element.

16 . A punched battery grid comprising virgin lead or high purity lead or highly purified secondary lead having a plurality of grid wires in a pattern arranged within a full frame, the pattern being a pattern of grid wires which emanates from a radiant point, wherein the radiant point is located outside the boundary of the frame.

17 . The battery grid of claim 16 for use in an AGM battery.

18 . The battery grid of claim 16 , wherein the grid comprises 99.9-99.99% purity lead.

19 . The battery grid of claim 16 , wherein the pattern of grid wires which emanate from a radiant point form radially extending grid wires extending within a range of approximately 0.5 degrees to approximately 26.5 degrees from an imaginary line extending perpendicular to the top frame.

20 . The battery of claim 16 , wherein the grid pattern includes a partial horizontal grid wire immediately adjacent the top frame element.

Assignees

• Cps Tech Holdings Llc

Inventors

• Bose Deepan Chakkaravarthi
• Troxel Jeffrey L
• La Croix Michael E
• Peluso Fabio F

Classifications

• H01M4/685

  Lead alloys · CPC title

• H01M2300/0005

  Acid electrolytes · CPC title

• H01M4/742 Primary

  perforated material · CPC title

• H01M4/73 Primary

  for lead-acid accumulators, e.g. frame plates · CPC title

• H01M2/1646

  Electricity · mapped topic