Abstract: An ink for printing an active layer in an electrochemical cell using a high-speed printing process, the ink comprising: a solvent; and an active-layer-forming material for forming an active layer; wherein the active-layer-forming material comprises: an active material in suspension in the solvent; and a polymeric binder. Also provided are electrodes made using the ink, electrolytic cells comprising electrodes and articles comprising the electrolytic cells.

Abstract: A method of printing an electrolyte for an electrochemical cell, the method comprising: providing an ink, the ink comprising a solvent and an electrolyte-forming material, the electrolyte-forming material comprising an electrolyte species and a polymer: printing the ink onto a medium to form an ink layer on the medium; allowing the ink to dry or cure to cause the electrolyte forming material to form an electrolyte layer on the medium. Also provided are electrodes made using the method, electrolytic cells comprising the electrodes and articles comprising the electrolytic cells.

Abstract: A method of forming a precursor substance for forming an electrode of an electrochemical cell. The method comprises providing particles of an electrode-forming material and coating the particles with an inert material to form coated particles. The inert material is inert with respect to the electrode-forming material. The coated particles are mixed with a liquid or gel carrier medium to form the precursor substance. Useful new electrochemical products are provided.

Abstract: Method of printing and articles A method of printing a separator for an electrochemical cell and articles made therefrom. A method of printing a separator for an electrochemical cell and a method of printing an electrochemical cell comprises providing an ink having particles of a separator-forming substance suspended within it and printing a layer of the ink onto a surface. The separator is formed from the separator-forming substance in the layer of ink. This may be done by drying or curing the layer of ink. The separa-tor-forming particles may host an electrolyte before or after the separator is formed.