BIOCOMPATIBLE WIRE BATTERY

• US 20130034760A1
• Filed: 08/02/2011
• Published: 02/07/2013
• Est. Priority Date: 08/02/2011
• Status: Active Grant

• Current Assignee: Johnson & Johnson Vision Care Incorporated (Johnson & Johnson)
• Original Assignee: Johnson & Johnson Vision Care Incorporated (Johnson & Johnson)
• Inventors: Otts, Daniel B., Kernick, Edward, Hardy, Katherine Rowan, Pugh, Randall Braxton
• Granted Patent: US 9,812,730 B2
• Time in Patent Office: Days
• US Class Current: 429/94
• CPC Class Codes: H01M 10/04 Construction or manufacture in general H01M10/058, H01M10/12, H01M10/28, H01M10/38 take precedence
• CPC Class Codes: H01M 10/0436 Small-sized flat cells or batteries for portable equipment
• CPC Class Codes: H01M 10/05 Accumulators with non-aqueous electrolyte H01M10/39 takes precedence
• CPC Class Codes: H01M 10/058 Construction or manufacture
• CPC Class Codes: H01M 10/287 Small-sized flat cells or batteries for portable equipment H01M10/283 and H01M10/286 take precedence
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 2220/30 Batteries in portable systems, e.g. mobile phone, laptop
• CPC Class Codes: H01M 4/50 of manganese
• CPC Class Codes: H01M 4/54 of silver
• CPC Class Codes: H01M 4/661 Metal or alloys, e.g. alloy coatings H01M4/669 take precedence
• CPC Class Codes: H01M 4/663 containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres
• CPC Class Codes: H01M 4/668 Composites of electroconductive material and synthetic resins
• CPC Class Codes: H01M 4/75 Wires, rods or strips
• 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 rechargeable electrochemical battery in the form of a single or multi-stranded wire assembly may be utilized as a power source for any number of implantable or non-implantable medical devices. As the wire form battery may be scaled to micro size, it may be utilized to power medical devices that were traditionally non-active devices, but which may be enhanced with active components. The wire form battery may be cut to size for a particular application which provides the same open circuit voltage regardless of how the wire is ultimately configured and the length of the wire utilized. Although the battery is in wire form, various arrangements of the components within the battery are also possible.

Claims

1. An electrochemical battery cell comprising:

an anode current collector configured as a wire having a predetermined cross-sectional profile;

an anode layer formed and positioned around at least a portion of the anode current collector;

a separator layer formed and positioned around at least some portion of the anode layer;

a cathode layer formed and positioned around at least a portion of the separator layer, the separator layer being configured to prevent electrical contact between the anode layer and the cathode layer;

a cathode current collector formed and positioned around at least a portion of the cathode layer; and

an electrolyte establishing ionic conductivity between the anode layer and the cathode layer.

2. The electrochemical battery cell according to claim 1, further comprising

an insulation layer formed and positioned around at least some portion of the cathode current collector.

3. The electrochemical battery cell according to claim 1, wherein the anode current collector comprises a non-conductive material at least partially covered with a conductive material.

4. The electrochemical battery cell according to claim 1, wherein the anode current collector comprises a metallic material.

5. The electrochemical battery cell according to claim 1, wherein the anode current collector comprises a carbon based material.

6. The electrochemical battery cell according to claim 1, wherein the anode layer comprises zinc particles dispersed in a polymeric matrix.

7. The electrochemical battery cell according to claim 1, wherein the separator layer comprises an electrolyte permeable, non-electrically conductive polymeric material.

8. The electrochemical battery cell according to claim 1, wherein the cathode layer comprises at least one of Ag₂O and MnO₂ in combination with graphite in an ion permeable polymeric binder.

9. The electrochemical battery cell according to claim 1, wherein the cathode current collector comprises at least one of graphite, silver and nickel filled polymers.

10. The electrochemical batter cell according to claim 9, wherein the polymers include conductive silicones or fluoropolymers.

11. An electrochemical battery cell comprising:

at least one anode current collector configured as a wire having a predetermined cross-sectional profile;

at least one cathode current collector configured as a wire having a predetermined cross-sectional profile, the at least one cathode current collector being positioned adjacent to the at least one anode current collector and separated a predetermined distance, wherein each of the at least one anode current collector and the at least one cathode current collectors are configured as pairs;

an anode layer formed and positioned around at least a portion of the at least one anode current collector;

a cathode layer formed and positioned around at least a portion of the at least one cathode current collector;

a separator layer formed and positioned around some portion of both the anode layer and the cathode layer, the separator layer being configured to prevent electrical contact between the anode layer and the cathode layer; and

an electrolyte establishing ionic conductivity between the anode layer and the cathode layer.

12. The electrochemical battery cell according to claim 11, further comprising an insulation layer formed and positioned around at least some portion of the separator layer.

13. An electrochemical battery cell comprising:

a cathode current collector configured as a wire having a predetermined cross-sectional profile;

a cathode layer formed and positioned around at least a portion of the cathode current collector;

a separator layer formed and positioned around at least some portion of the cathode layer;

an anode layer formed and positioned around at least a portion of the separator layer, the separator layer being configured to prevent electrical contact between the cathode layer and the anode layer;

an anode current collector formed and positioned around at least a portion of the anode layer; and

an electrolyte establishing ionic conductivity between the cathode layer and the anode layer.

14. The electrochemical battery cell according to claim 13, further comprising an insulation layer formed and positioned around at least some portion of the anode current collector.

15. A device incorporating an electrochemical battery cell comprising:

a powerable component having at least one set of positive and negative electrical contacts; and

a wire form electrochemical battery cell incorporated into or on the powerable component, the wire form electrochemical battery cell having an anode current collector and a cathode current collector interconnected to the at least one set of positive and negative electrical contacts, thereby forming a complete circuit.

16. A latent electrochemical battery cell comprising:

an anode current collector configured as a wire having a predetermined cross-sectional profile;

an anode layer formed and positioned around at least a portion of the anode current collector, the anode layer being formed from a precursor reducing material that is convertible to a reducing material;

a separator layer formed and positioned around at least some portion of the anode layer;

a cathode layer formed and positioned around at least a portion of the separator layer, the cathode layer being formed from a precursor oxidizing material that is convertible to an oxidizing material, where the separator layer is configured to prevent electrical contact between the anode layer and the cathode layer;

a cathode current collector formed and positioned around at least a portion of the cathode layer; and

an electrolyte establishing ionic conductivity between the anode layer and the cathode layer.

17. The electrochemical battery cell according to claim 16, further comprising an insulation layer formed and positioned around at least some portion of the cathode current collector.

18. A latent electrochemical battery cell comprising:

a cathode current collector configured as a wire having a predetermined cross-sectional profile;

a cathode layer formed and positioned around at least a portion of the cathode current collector, the cathode layer being formed from a precursor oxidizing material that is convertible to an oxidizing material;

a separator layer formed and positioned around at least some portion of the cathode layer;

an anode layer formed and posited around at least a portion of the separation layer, the anode layer being formed from a precursor reducing material this is convertible to a reducing material, wherein the separator layer is configured to prevent electrical contact between the cathode layer and the anode layer;

an anode current collector formed and positioned around at least a portion of the outer layer; and

an electrolyte establishing ionic conductivity between the cathode layer and the anode layer.

19. The electrochemical battery cell according to claim 18, further comprising an insulation layer formed and positioned around at least some portion of the anode current collector.

20. An electrochemical battery cell comprising:

at least one anode current collector configured as a wire having a predetermined cross-sectional profile;

at least one cathode current collector configured as a wire having a predetermined cross-sectional profile, the at least one cathode current collector being positioned adjacent to the at least one anode current collector and separated a predetermined distance, wherein each of the at least one anode current collector and the at least one cathode current collectors are configured as pairs;

an anode layer formed and positioned around at least a portion of the at least one anode current collector, the anode layer being formed from a precursor reducing material that is convertible to a reducing material;

a cathode layer formed and positioned around at least a portion of the at least one cathode current collector, the cathode layer being formed from a precursor oxidizing material that is convertible to an oxidizing material;

a separator layer formed and positioned around at least some portion of both the anode layer and the cathode layer, the separator layer being configured to prevent electrical contact between the anode layer and the cathode layer; and

an electrolyte establishing ionic conductivity between the anode layer and the cathode layer.

21. The electrochemical battery cell according to claim 20, further comprising an insulation layer formed and positioned around at least some portion of the separator layer.

22. A method for forming an electrochemical cell for use with a device, the method comprising:

drawing a length of wire form electrochemical battery cell from a supply of the wire form electrochemical battery cell, the wire form electrochemical battery cell comprising an anode current collector and a cathode current collector;

separating a predetermined length of the wire form electrochemical battery cell from the supply of the wire form electrochemical battery cell;

providing a portion of both the anode current collector and the cathode current collector for making electrical contact with a device to be powered; and

configuring the wire form electrochemical battery cell into a predetermined shape for use with the device to be powered.