Bipolar battery and plate
A bipolar battery plate is utilized for production of a bipolar battery. The bipolar battery plate includes a frame, a substrate, first and second lead layers, and positive and negative active materials. The substrate includes a plurality of perforations through the substrate, and the substrate is positioned within the frame. The first lead layer is positioned on one side of the substrate, while the second lead layer is positioned on another side of the substrate. The first and second lead layers are electrically connected to each through the plurality of perforations. The positive active material is positioned on a surface of the first lead layer, while the negative active material is positioned on a surface of the second lead layer.
1. A bipolar battery plate for a bipolar battery, comprising:
a frame;
a substrate positioned within the frame and having a plurality of perforations, the substrate formed of a non-conductive insulative plastic having conductive particles that are homogeneously dispersed throughout the insulative plastic;
a first lead layer positioned on one side of the substrate;
a second lead layer positioned on another side of the substrate, the first and second lead layers electrically connected to each other through the plurality of perforations;
a positive active material (PAM) positioned on a surface of the first lead layer; and
a negative active material (NAM) positioned on a surface of the second lead layer.
2. The bipolar battery plate according to claim 1 , wherein the frame is a moldable insulative polymer.
3. The bipolar battery plate according to claim 1 , wherein the frame is an outer wall of the bipolar battery that provides structural support for the bipolar battery.
4. The bipolar battery plate according to claim 1 , wherein the frame includes substrate receiving passageways.
5. The bipolar battery plate according to claim 4 , wherein the frame includes material receiving passageways.
6. The bipolar battery plate according to claim 5 , wherein the substrate receiving passageways secure the substrate within the frame.
7. The bipolar battery plate according to claim 6 , wherein the material receiving passageways are areas between outer surfaces of the frame and a surface of the substrate.
8. The bipolar battery plate according to claim 7 , wherein the substrate is a separate piece of insulative material than the frame, and the substrate is received and secured within substrate receiving passageway of the frame.
9. The bipolar battery plate according to claim 5 , wherein the material receiving passageways are an area between outer surfaces of the frame and a surface of the substrate.
10. The bipolar battery plate according to claim 9 , wherein the material receiving passageways receive the first and second lead layer, the positive active material, and the negative active material within the frame.
11. The bipolar battery plate according to claim 1 , wherein the substrate is prepared from the same material as the frame in a one piece construction.
12. The bipolar battery plate according to claim 1 , wherein the substrate includes conductive surfaces where the surfaces of the substrate are roughened by a chemical or abrasion and the conductor particles are exposed outside the insulative plastic.
13. The bipolar battery plate according to claim 1 , wherein the perforations are positioned along and extending through the substrate.
14. The bipolar battery plate according to claim 13 , wherein the lead layers are lead foils that are conductive through the perforations.
15. The bipolar battery plate according to claim 14 , wherein the lead foils are mechanically and electrically connected to each other through the perforations.
16. The bipolar battery plate according to claim 15 , wherein the lead foils are connected through the perforations by a weld.
17. The bipolar battery plate according to claim 15 , wherein the perforations are large enough that the first lead layer can be positioned in and through the perforations and connected to the second lead layer.
18. The bipolar battery plate according to claim 1 , wherein first and second lead layers are a lead paste that is positioned along front and rear surfaces of the substrate.
19. The bipolar battery plate according to claim 18 , wherein first lead layer is spread across the front surface of the substrate and within at least one of the perforations so that that first lead layer connects to the second lead layer on an opposite side.
20. The bipolar battery plate according to claim 1 , wherein the positive and negative active materials are positioned over the first and second lead layers respectively within a material receiving passageway of the frame.
21. The bipolar battery plate according to claim 20 , wherein first active material is a paste applied over the first lead layer and the second active material is a paste spread over the second lead layer.