Process of fabricating fibrous electrochemical cells

A process for fabricating a fibrous electrochemical cell comprising a fiber which extends longer as compared to the fiber diameter, said process comprising:

• a) placing a membrane separator around a fibrous positive or negative inner electrode forming an assembly, wherein said inner electrode comprises an electrically conductive fiber in contact with a positive or negative electrocatalyst or electroactive material, and said membrane separator comprises a bore side, shell side, and lumen, said lumen housing said inner electrode and allowing for passage of liquid or gas through said bore side;
• b) disposing an electrolyte in the pores of said membrane separator of said assembly;
• c) impregnating said shell side pores of said membrane separator with a material or forming a thin layer of said material in contact with said membrane separator, said material comprising a positive or negative electrocatalyst or electroactive material and an electrically conductive material forming an electrochemical cell and;
• d) placing said electrochemical cell in contact with a current collector, said current collector comprising a fibrous, electrically conductive material of about the same length and outside diameter as said inner electrode, or
• placing said assembly in contact with an outer electrode fiber of about the same length and diameter of said inner electrode, forming an electrochemical cell, wherein said outer electrode comprises an electrically conductive fibrous material in contact with a layer comprising a positive or negative electrocatalyst or electroactive material.