Flexible micro-battery

Patent metadata

Field	Value
Publication number	US-10593911-B2
Application number	US-201515326161-A
Country	US
Kind code	B2
Filing date	Jul 21, 2015
Priority date	Jul 21, 2014
Publication date	Mar 17, 2020
Grant date	Mar 17, 2020

Abstract

A flexible micro-battery construction which can be contorted in three dimensions while maintaining operation and providing biocompatibility and useful power necessary for small medical and other devices is provided.

First claim

What is claimed is:

1. An electrochemical micro-battery comprising biocompatible cell components including: a cylindrical anode extending along a first vector;
a generally planar cathode extending along a second vector, wherein said second vector is generally parallel to said first vector, said cathode being disposed from said anode by a predetermined space;
a cathode collector in electrical contact with said cathode and extending along said second vector;
an electrolyte positioned generally surrounding said anode and said cathode and within said predetermined space to provide ionic conductivity between said anode and said cathode; and
flexible packaging generally surrounding said anode, said cathode, said cathode collector and said electrolyte, wherein said anode extends through said packaging along said first vector, and said cathode collector extends through said packaging along said second vector.

2. The electrochemical micro-battery according to claim 1 , wherein both said first vector and said second vector are arcuate, and wherein said first vector and second vector are concentric to each other.

3. The electrochemical micro-battery according to claim 1 , wherein said anode is a zinc wire.

4. The electrochemical micro-battery according to claim 1 , wherein said cathode comprises manganese dioxide, a conductive material, and a binder.

5. The electrochemical micro-battery according to claim 1 , wherein the cathode collector is positioned within the cathode.

6. The electrochemical micro-battery according to claim 1 , wherein the diameter of the anode equals the thickness of the cathode, so that the thickness of said electrochemical cell equals the anode diameter in addition to said packaging thickness.

7. The electrochemical micro-battery according to claim 1 , further comprising a second electrochemical cell connected in series to said electrochemical cell, wherein said anode of the electrochemical cell is electrically connected to the cathode collector of said second electrochemical cell, and wherein said packaging of said electrochemical cell and said packaging of said second electrochemical cell are joined as to form a contiguous package.

8. The electrochemical micro-battery according to claim 7 , wherein said anode of the electrochemical cell is welded to said cathode collector of said second electrochemical cell.

9. The electrochemical micro-battery according to claim 1 , wherein said packaging is vacuum formed.

10. The electrochemical micro-battery according to claim 1 , wherein said packaging prevents water and oxygen migration through said packaging.

11. The electrochemical micro-battery according to claim 1 , further comprising a second electrochemical cell connected in series to said electrochemical cell, wherein said anode of the electrochemical cell further includes an anode collector in electrical communication with said anode of the electrochemical cell, wherein said anode collector extends out of said electrochemical cell and extends into said second electrochemical cell, and wherein said anode collector is electrically connected to the cathode of said second electrochemical cell, and wherein said packaging of said electrochemical cell and said packaging of said second electrochemical cell are joined as to form a contiguous package.

Assignees

• Johnson & Johnson Vision Care

Inventors

• Weinstein Lawrence Edward
• Pagliaro Leonard
• Howarth Jonathan
• Audebert Jean-Francois
• Xu Taylor

Classifications

• H01M10/26

  Selection of materials as electrolytes · CPC title

• H01M4/50

  of manganese · CPC title

• H01M10/0436

  Small-sized flat cells or batteries for portable equipment · CPC title

• H01M4/483

  for non-aqueous cells (H01M4/485 takes precedence) · CPC title

• H01M2300/0085

  Immobilising or gelification of electrolyte · CPC title