An aspect of the present invention is an electrode which includes an active material layer, and an insulating layer layered on a surface of the active material layer, in which the insulating layer contains a filler and a first binder, and a content of the first binder in the insulating layer is 8% by mass or more. Another aspect of the present invention is an electrode which includes an active material layer, and an insulating layer layered on a surface of the active material layer, in which the insulating layer is a dry coating product containing a filler and a binder. Still another aspect of the present invention is a method for manufacturing an electrode, which includes the steps of forming an active material layer, and laminating an insulator containing a filler and a binder on a surface of the active material layer to form an insulating layer, in which the insulator does not contain a solvent.

Electrolyte for a solid-state battery includes a body having grains of inorganic material sintered to one another, where the grains include lithium. The body is thin, has little porosity by volume, and has high ionic conductivity.

An electrochemical cell comprising: i. an anode comprising an alkali metal or alkali metal alloy or silicon; ii. a cathode comprising a particulate mixture deposited on a current collector, said particulate mixture comprising electrochemically active sulfur material and electronically conductive carbon material, wherein the porosity of the cathode is less than 40%; and iii. an electrolyte having a polysulfide solubility of less than 500 mM.

The present invention relates to dispersants comprising a polyester derived from a plurality of poly(carbonylalkyleneoxy) chains (and optionally a fatty acid) and an amine, wherein said dispersants have an acid value of less than 15 mgKOH/g. The dispersants as described herein provide desirable viscosity profiles when in use. More especially some embodiments provide improved compatibility with certain solvents in dispersions, and/or are particularly suitable for use in battery systems.

An object of the present disclosure is to produce a cathode mixture capable of increasing the charge-discharge capacity of a sulfur battery. The present disclosure achieves the object by providing a cathode mixture used for a sulfur battery and a method for producing the same, wherein the cathode mixture is produced by a mechanical milling treatment of a raw material mixture including Li.sub.2S and M.sub.xS.sub.y wherein M is selected from P, Si, Ge, B, Al, or Sn, and x and y are integers that confer an electroneutrality with respect to S according to a kind of M; a cathode active material including a sulfur simple substance; and a conductive aid including a carbon material.

An object of the present disclosure is to produce a cathode mixture capable of increasing the charge-discharge capacity of a sulfur battery. The present disclosure achieves the object by providing a cathode mixture used for a sulfur battery and a method for producing the same, wherein the cathode mixture is produced by a mechanical milling treatment of a raw material mixture including Li.sub.2S and M.sub.xS.sub.y wherein M is selected from P, Si, Ge, B, Al, or Sn, and x and y are integers that confer an electroneutrality with respect to S according to a kind of M; a cathode active material including a sulfur simple substance; and a conductive aid including a carbon material.

A method of producing a structured composite material is described. A porous media is provided, an electrically conductive material is deposited on surfaces or within pores of the plurality of porous media particles, and an active material is deposited on the surfaces or within the pores of the plurality of porous media particles coated with the electrically conductive material to coalesce the plurality of porous media particles together and form the structured composite material.

This application relates to nanostructured materials having selectively permeable structures that separate a liquid phase contained within the nanostructure from a volume outside of the nanostructure, and methods of making same. Such materials may be used in the manufacture of lithium anode compositions for secondary batteries or other energy storage devices.

There is provided a cathode material comprising a layer of sulfur species dispersed within or thereon a porous matrix comprising a first conducting carbon material, a second conducting carbon material and a binder, wherein the second conducting carbon material is carbon fiber or carbon nanotube. There is also provided a cathode material comprising a layer of sulfur species dispersed within or thereon a porous matrix comprising a first conducting carbon material, a second conducting carbon material and a binder, wherein said porous matrix is interconnected with uniform pores. There are also provided methods for preparing the above cathode material(s).

An all-solid-state secondary battery including: a positive electrode active material layer including a positive electrode active material and a sacrificial positive electrode material having an oxidation-reduction potential which is less than a discharge voltage of the positive electrode active material; and a negative electrode active material layer including a negative electrode active material including an element alloyable with lithium or that forms a compound with lithium; and a solid electrolyte layer between the positive electrode active material layer and the negative electrode active material layer, wherein the sacrificial positive electrode material includes a sacrificial active material and a conductive agent.