US 9,812,730 B2
Biocompatible wire battery
Daniel B. Otts, Jacksonville, FL (US); Katherine Rowan Hardy, Jacksonville, FL (US); Randall Braxton Pugh, St. Johns, FL (US); and Edward Kernick, Jacksonville, FL (US)
Assigned to Johnson & Johnson Vision Care, Inc., Jacksonville, FL (US)
Filed by Daniel B. Otts, Jacksonville, FL (US); Katherine Rowan Hardy, Jacksonville, FL (US); Randall Braxton Pugh, St. Johns, FL (US); and Edward Kernick, Jacksonville, FL (US)
Filed on Aug. 2, 2011, as Appl. No. 13/196,210.
Prior Publication US 2013/0034760 A1, Feb. 7, 2013
Int. Cl. H01M 10/36 (2010.01); H01M 10/04 (2006.01); H01M 4/66 (2006.01); H01M 10/05 (2010.01); H01M 4/50 (2010.01); H01M 4/54 (2006.01); H01M 4/75 (2006.01); H01M 2/02 (2006.01); H01M 10/28 (2006.01); H01M 10/42 (2006.01)
CPC H01M 10/04 (2013.01) [H01M 2/0202 (2013.01); H01M 4/50 (2013.01); H01M 4/54 (2013.01); H01M 4/661 (2013.01); H01M 4/663 (2013.01); H01M 4/668 (2013.01); H01M 4/75 (2013.01); H01M 10/0436 (2013.01); H01M 10/05 (2013.01); H01M 10/287 (2013.01); H01M 10/425 (2013.01); H01M 2220/30 (2013.01); Y02E 60/124 (2013.01); Y10T 29/49108 (2015.01)] 1 Claim
OG exemplary drawing
 
1. An electrochemical battery cell comprising:
an anode current collector configured as a wire having a predetermined cross-sectional profile with a thickness of about 25 microns, the anode current collector is the core of the battery cell, wherein the anode current collector is plated with a material that prevents chemical activity;
an anode layer formed and positioned concentrically around at least a portion of the anode current collector, the anode layer having a thickness in the range of 10 to 30 microns and conforming to the anode current collector, the anode layer comprising zinc particles dispersed in a polymeric matrix including a gel forming polymer and a binding polymer, including at least one of poly (ethylene oxide) or poly (vinyl alcohol);
a separator layer formed and positioned concentrically around at least a portion of the anode layer, the separator layer having a thickness of about 20 microns and conforming to the anode layer;
a cathode layer formed and positioned concentrically around at least a portion of the separator layer, the cathode layer having a thickness of about 40 microns and conforming to the separator layer, the cathode layer comprising a cathode coating mixture formed from a powder mixture and solvent including at least one of Ag2O and MnO2 in combination with at least one of graphite in an ion permeable polymeric binder or in a water and ion permeable binder, the cathode coating mixture being applied directly on the separator layer;
a cathode current collector formed and positioned concentrically around at least a portion of the cathode layer, the cathode current collector having a thickness in the range of 10 to 20 microns;
an insulation layer formed and positioned concentrically around at least a portion of the cathode current collector, the insulation layer having a thickness of about 5 microns; and
an electrolyte establishing ionic conducting between the anode layer and the cathode layer, wherein the electrochemical battery cell has a length to diameter ratio of greater than 10 to 1.