The disclosure concerns an electrolyte, an electrolyte ink, a battery or other electrochemical cell including the same, and methods of making the electrolyte and electrochemical cell. The electrolyte includes an ionic liquid comprising a hydrophilic or hydrophobic anion, a multi-valent metal cation suitable for use in a battery cell, a polymer binder, and optional additives (e.g., a solid filler). The electrolyte ink includes components of the electrolyte and a solvent. The solvent and the polymer binder (or, when present, the solid filler) have a hydrophilicity, hydrophobicity or polarity similar to or matching that of the ionic liquid's anion, or form hydrogen bonds with the ionic liquid's anion. The electrolyte includes a solid inorganic filler that provides mechanical support form hydrogen bonds with the anion and/or a counterpart anion of the multi-valent metal cation, and links with a material in an adjacent layer of the electrochemical cell.

An alkaline electrochemical cell includes a cathode; a gelled anode having an anode active material and an electrolyte; and a separator disposed between the cathode and the anode; wherein the separator includes a non-conductive, porous material having a mean pore size of about 1 micron to about 5 microns, a maximum pore size of about 19 microns, and an air permeability of about 0.5 cc/cm.sup.2/s to about 3.8 cc/cm.sup.2/s at 125 Pa.

An alkaline battery and a method of producing an alkaline battery that includes a negative electrode gel in which a negative electrode active material made of a zinc alloy and a binder are dispersed in an alkaline aqueous solution. Ultrafine microfibrils form the binder.

A method for forming a solid electrolyte coating on a substrate (1), the method comprising: a. providing a first and a second electrode (3), b. coating a sol-gel precursor solution (4) of the solid electrolyte coating on the substrate (1) and electrically contacting the sol-gel precursor solution (4) with the first and the second electrode, the sol-gel precursor solution (4) being capable of forming a gel in presence of a voltage, and c. generating the voltage across the sol-gel precursor solution (4) via the first and the second electrodes, thereby transforming the sol-gel precursor solution (4) into a gel.

The present invention provides a solid-liquid electrolyte in the form of a gel which comprises an organic carbonate-based solvent, precipitated silica, at least one ionically conducting salt and optionally additives. The invention also relates to batteries containing said solid-liquid electrolyte. The solid-liquid electrolyte according to the present invention can improve the electrochemical properties of batteries and prevent electrolyte leakage thus reducing the risk of corrosion of the batteries.

The present invention provides a solid-liquid electrolyte in the form of a gel which comprises an organic carbonate-based solvent, precipitated silica, at least one ionically conducting salt and optionally additives. The invention also relates to batteries containing said solid-liquid electrolyte. The solid-liquid electrolyte according to the present invention can improve the electrochemical properties of batteries and prevent electrolyte leakage thus reducing the risk of corrosion of the batteries.

A method for fabricating the electrochemical device includes provision of a first stack. This first stack successively includes: a first electrode, an electrically insulating liquid electrolyte in contact with the first electrode, a second electrode separated from the first electrode by the liquid electrolyte. The method includes an at least partial polymerisation step of the liquid electrolyte.

The disclosure provides a primary battery and an electrode assembly thereof. The electrode assembly includes a separator, a positive electrode, and a negative electrode current collector. The separator has a positive electrode side and a negative electrode side opposite to each other. The positive electrode is located at the positive electrode side of the separator, and the positive electrode includes a positive electrode current collector and a positive electrode material. The negative electrode current collector is located at the negative electrode side of the separator. The electrode assembly does not include a negative electrode material before charging or activation.

A lithium primary battery comprising a positive electrode sheet, a negative electrode sheet, a separator disposed between the positive electrode sheet and the negative electrode sheet and an electrolyte. The positive electrode comprises a current collector for the positive electrode and an active material layer for the positive electrode coated on at least one surface of the current collector for the positive electrode. The active material layer for the positive electrode comprises an active material capable of deintercalating lithium ions. The negative electrode sheet comprises a copper foil, a nickel foil, a conductive carbon paper or a steel film.

The disclosure concerns an electrolyte, an electrolyte ink, a battery or other electrochemical cell including the same, and methods of making the electrolyte and electrochemical cell. The electrolyte includes an ionic liquid comprising a hydrophilic or hydrophobic anion, a multi-valent metal cation suitable for use in a battery cell, a polymer binder, and optional additives (e.g., a solid filler). The electrolyte ink includes components of the electrolyte and a solvent. The solvent and the polymer binder (or, when present, the solid filler) have a hydrophilicity, hydrophobicity or polarity similar to or matching that of the ionic liquid's anion, or form hydrogen bonds with the ionic liquid's anion. The electrolyte includes a solid inorganic filler that provides mechanical support form hydrogen bonds with the anion and/or a counterpart anion of the multi-valent metal cation, and links with a material in an adjacent layer of the electrochemical cell.