# US 10,312,549 B2 · Bipolar battery and plate

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- Number: US 10,312,549 B2
- Document ID: US10312549B2
- Status: Granted
- Kind: B2
- Application number: 15/449,238
- Filed: 2017-03-03
- Published: 2017-06-22
- Granted: 2019-06-04
- Earliest claimed: 2011-09-09
- Assignees: East Penn Manufacturing Co.
- Applicants: East Penn Manufacturing Co., Inc.
- Inventors: Stephen K. Fairchild; Kenneth R. Dengler, Jr.
- Web page: https://patentgrep.com/patent/US10312549B2

## CPC

- H01M 10/18: with bipolar electrodes
- H01M 4/14: Electrodes for lead-acid accumulators
- H01M 10/14: Assembling a group of electrodes or separators
- H01M 50/437: Glass
- H01M 50/44: Fibrous material
- H01M 2004/029: {Bipolar electrodes}
- Y02E 60/10: Energy storage using batteries
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A bipolar battery plate for a bipolar battery is disclosed. The bipolar battery plate has a frame, a substrate positioned within the frame, a first lead layer positioned on one side of the substrate, a second lead layer positioned on another side of the substrate, 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. The substrate has a plurality of perforations, and a plurality of standoffs integrally formed on opposing side surfaces thereof. The first and second lead layers are electrically connected to each other through the plurality of perforations.

## Claims

### Claim 1

A bipolar battery plate for a bipolar battery, comprising:
a frame;
a substrate positioned within the frame and having
a plurality of perforations, and
a plurality of standoffs integrally formed on opposing side surfaces thereof;
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.

### Claim 2 (depends on 1)

The bipolar battery plate according to claim 1, wherein the first lead layer and the second lead layer have holes corresponding to the plurality of standoffs that align with the standoffs when the first and second lead layers are positioned on each side of the substrate.

### Claim 3 (depends on 1)

The bipolar battery plate according to claim 1, wherein the frame is a moldable insulative polymer.

### Claim 4 (depends on 1)

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.

### Claim 5 (depends on 1)

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.

### Claim 6 (depends on 1)

The bipolar battery plate according to claim 1, wherein the substrate is a non-conductive insulative plastic having conductive particles that are homogeneously dispersed throughout the insulative plastic.

### Claim 7 (depends on 6)

The bipolar battery plate according to claim 6, 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.

### Claim 8 (depends on 1)

The bipolar battery plate according to claim 1, wherein the perforations are positioned along and extending through the substrate.

### Claim 9 (depends on 8)

The bipolar battery plate according to claim 8, wherein the lead layers are lead foils that are conductive through the perforations.

### Claim 10 (depends on 9)

The bipolar battery plate according to claim 9, wherein the lead foils are mechanically and electrically connected to each other through the perforations.

### Claim 11 (depends on 10)

The bipolar battery plate according to claim 10, wherein the lead foils are welded together by resistance welding.

### Claim 12 (depends on 1)

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.

### Claim 13 (depends on 12)

The bipolar battery plate according to claim 12, 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.

### Claim 14 (depends on 1)

The bipolar battery plate according to claim 1, wherein the positive active material is a paste applied over the first lead layer and the negative active material is a paste spread over the second lead layer.

### Claim 15

A bipolar battery, comprising
a plurality of plates positioned next to each other, each plate having,
a frame;
a substrate positioned within the frame having
a plurality of perforations, and
a plurality of standoffs integrally formed on opposing side surfaces thereof;
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 layer electrically connected to each through the plurality of perforations;
a positive active material (PAM) positioned on a surface of the first lead layer;
a negative active material (NAM) positioned on a surface of the second lead layer;
a pair of terminal sections positioned on opposite ends of the stacked plurality of bipolar plates; and
an electrolyte positioned between each of the plurality of bipolar plates and the pair of terminal sections.

### Claim 16 (depends on 15)

The bipolar battery plate according to claim 15, wherein the first lead layer and the second lead layer have holes corresponding to the plurality of standoffs that align with the standoffs when the first and second lead layers are positioned on each side of the substrate.

### Claim 17 (depends on 15)

The bipolar battery plate according to claim 15, wherein the frames on the plurality of plates are attached together.

### Claim 18 (depends on 15)

The bipolar battery plate according to claim 15, wherein the plurality of standoffs of one plate are attached to the plurality of standoffs of another plate.

### Claim 19 (depends on 18)

The bipolar battery plate according to claim 18, wherein the standoffs of one plate are attached to the standoffs of another plate by ultrasonic welding, chemical welding, solvent welding, spin welding, or hot-plate welding.

### Claim 20 (depends on 18)

The bipolar battery plate according to claim 18, wherein the standoffs of one plate are attached to the standoffs of another plate by a hook and latch or ball and socket connection.
