Printed battery

• US 20030219648A1
• Filed: 05/24/2002
• Published: 11/27/2003
• Est. Priority Date: 05/24/2002
• Status: Active Grant

• Current Assignee: Intertech Group Incorporated
• Original Assignee: Intertech Group Incorporated
• Inventors: Zucker, Jerry
• Granted Patent: US 7,320,845 B2
• Time in Patent Office: Days
• US Class Current: 429/124
• CPC Class Codes: H01M 10/0436 Small-sized flat cells or batteries for portable equipment
• CPC Class Codes: H01M 10/0565 Polymeric materials, e.g. gel-type or solid-type
• CPC Class Codes: H01M 4/38 of elements or alloys
• CPC Class Codes: H01M 4/50 of manganese
• CPC Class Codes: H01M 6/181 with polymeric electrolytes
• CPC Class Codes: H01M 6/40 Printed batteries , e.g. thin film batteries
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product
• CPC Class Codes: Y10T 29/49108 Electric battery cell making

Abstract

A printed battery has a flexible backing sheet, a first conductive layer printed on said sheet; a first conductive layer printed on the first conductive layer; a second electrode layer printed on said first electrode layer; and a second conductive layer printed on said second electrode layer.

Claims

1. A printed battery comprising

a flexible backing sheet;

a first conductive layer printed on said sheet;

a first electrode layer printed on said first conductive layer;

a second electrode layer printed on said first electrode layer; and

a second conductive layer printed on said second electrode layer.

2. The battery of claim 1 wherein said backing sheet being a porous or nonporous material.

3. The battery of claim 2 wherein said sheet being selected from the group consisting of paper or plastic sheets.

4. The battery of claim 3 wherein said plastic sheets being selected from the group consisting of polyester, polyolefins, polycarbonate, polyamide, polyimide, polyetherketone, polyetheretherketone, polyethersulfone, polyphenylsulfide, polystryene, polyvinyl chloride, and cellulose and its derivatives.

5. The battery of claim 1 wherein printing being selected from the group consisting of screen printing, pad printing, stenciling, offset printing, and or jet printing.

6. The battery of claim 1 wherein each said conductive layer and said electrode layer being printed with an ink having a base selected from the group consisting of acrylics, alkyds, alginate, latex, polyurethane, linseed oil, or hydrocarbon emulsions.

7. The battery of claim 1 wherein one said electrode being an anode and the other said electrode being a cathode, said anode having an active material selected from the group consisting of zinc, magnesium, cadmium, and lithium, and said cathode having a material selected from the group consisting of manganese dioxide, mercury oxide, silver oxide, or other electro-active oxides.

8. The battery of claim 1 further comprising an electrolyte layer interposed between said first electrode and said second electrode.

9. The battery of claim 8 wherein said electrolyte layer consists essentially of a binder and an electrolyte.

10. A method of making a printed battery comprising the steps of:

printing a first conductive layer on a flexible backing sheet;

printing a first electrode layer on the first conductive layer;

printing a second electrode layer on the second conductive layer; and

printing a second conductive layer on the second electrode layer.

11. The method of claim 10 further comprising curving each layer before printing the next layer.

12. The method of claim 11 wherein curing comprises drying.

13. The method of claim 12 wherein drying comprises the use of force hot air.

14. The method of claim 10 further comprising printing an electrode layer on the first electrode layer before printing the second electrode layer.