Patent ID: 11923511
Assignee: ELECTROCHEM SOLUTIONS, INC.
Field: Pharmaceuticals (Chemistry)
Classification: CPC H  A  C  Y | IPC A  C  H

Claim 22:
23. An electrochemical cell, comprising:
a) a casing;
b) a glass-to-metal seal supported by the casing, the glass-to-metal seal comprising a terminal pin surrounded by a sealing glass; and
c) an electrode assembly housed inside the casing, the electrode assembly comprising:
i) a U-shaped anode comprising lithium contacted to the opposed major sides of a stainless-steel anode current collector having at least one stainless-steel anode current collector tab electrically connected to the casing, the U-shaped anode having a proximal U-shaped anode connecting portion connected to an anode inner portion extending to an anode inner portion distal end, and connected to an anode outer portion extending to an anode outer portion distal end, wherein the anode current collector residing in the anode inner portion, in the proximal U-shaped anode connecting portion and in the anode outer portion has anode active material contacted to its opposed major sides extending from the anode inner portion distal end, through the proximal U-shaped anode connecting portion, and to the anode outer portion distal end;
ii) a cathode comprising cathode material contacted to the opposed major sides of a stainless-steel cathode current collector having a nickel cathode current collector tab connected to the terminal pin of the glass-to-metal seal supported by the casing, wherein the cathode has opposed cathode first and second major sides extending from a cathode proximal end to a cathode distal end;
iii) a separator disposed intermediate the U-shaped anode and the cathode to prevent direct physical contact between them; and
iv) a catholyte in electrochemical association with the U-shaped anode and the cathode,
v) wherein the cathode resides inside the U-shaped anode so that the anode inner portion directly faces the cathode first side, and the anode outer portion directly faces the cathode second side with the proximal U-shaped anode connecting portion facing the cathode proximal end, and
vi) wherein, with the anode, the cathode and the separator as a wound-shaped electrode assembly encircling a center point of the electrode assembly, an imaginary anode reference radius extending outwardly from the center point intersects the anode proximal connecting portion at a tangent point, and wherein the anode inner and outer portions do not contact each other until the anode inner portion has crossed the imaginary anode reference radius after the imaginary anode reference radius intersects the anode connecting portion at the tangent point.