A separator for a battery formed from a polymer gel electrolyte that is disposed within the pores of a polymer mesh. The polymer gel electrolyte is formed from a crosslinked ion-conducting polymer and an ionic liquid. The separator is formed from a gel loaded with an electrolyte, which prevents issue with electrolyte leakage. The polymer mesh provides stability to the polymer gel electrolyte, allowing for use of thin films of the polymer gel electrolyte and use of soft polymer gel electrolytes.

The present invention relates to a positive electrode active material for a lithium-sulfur battery containing polyimide, more specifically, a positive electrode active material formed by complexing the composite of polyimide and carbon-based secondary particles with sulfur particles, a preparation method thereof and a lithium-sulfur battery comprising the same. If the positive electrode active material formed by including and complexing the polyimide according to the present invention is applied to the lithium-sulfur battery, the elution of the polysulfide is suppressed, and thus lifetime characteristics and energy efficiency are improved.

Provided is a lithium-ion battery or lithium-ion capacitor electrode material that can compensate for the drawbacks of a hydrophobic active material, that can impart hydrophilicity to the hydrophobic active material, and that can exhibit excellent dispersibility without deteriorating electrode characteristics. Specifically provided is an electrode material for a lithium-ion battery or a lithium-ion capacitor, the electrode material comprising a composite powder in which a B component is supported or coated on a surface of an A component, the A component comprising a material capable of electrochemically occluding and releasing lithium ions, the B component being sulfur-modified cellulose, and the B component being contained in an amount of 0.01 mass % or more based on 100 mass % of the total amount of the A component and the B component.

A conductive polymer material is provided that includes an electrically conducting monomer and a zwitterionic sulfate chemically attached to the monomer. The electrically conducting monomer is at least one of acetylene, pyrrole, thiophene, phenylenevinylene, paraphenylene and aniline. The zwitterionic sulfonate includes an imidazolium group or an ammonium group. A solid-state battery is also provided that includes the conductive polymer material in an electrode. The solid-state battery includes an anode, a cathode and a solid electrolyte disposed between the anode and the cathode. At least one of the anode and the cathode includes the conductive polymer material.

The present invention generally relates to compositions and methods for the preparation of conductive polymer coatings, and methods for application of the coatings to three-dimensional substrates.

A solid electrolyte composition includes an inorganic solid electrolyte (A) having ion conductivity of a metal belonging to Group I or II of the periodic table, a binder (B), a dispersion medium (C), and a solvent (D) having any one of a fluorine atom, an oxygen atom, a nitrogen atom, or a chlorine atom in a chemical structure, in which a polymer constituting the binder (B) has a partial structure including an acyclic siloxane structure represented by General Formula (I) and a partial structure represented by General Formula (II). A solid electrolyte-containing sheet has a layer constituted of the solid electrolyte composition. The all-solid state secondary battery includes the solid electrolyte-containing sheet. Methods for manufacturing a solid electrolyte-containing sheet and an all-solid state secondary battery include a step of applying the solid electrolyte composition onto a base material.

##STR00001##

A solid electrolyte composition includes: an inorganic solid electrolyte; binder particles having an average particle size of 1 nm to 10 m; and a dispersion medium, in which the binder particles include a polymer that includes a component derived from a polymerizable compound having a molecular weight of lower than 1,000, and the component includes at least one of an aliphatic hydrocarbon chain to which 10 or more carbon atoms are bonded or a siloxane structure as a side chain of the polymer. The solid electrolyte composition is used in the sheet for an all-solid state secondary battery, the electrode sheet for an all-solid state secondary battery, the all-solid state secondary battery, the method of manufacturing a sheet for an all-solid state secondary battery, and the method of manufacturing an all-solid state secondary battery.

An object of the present invention is to provide an excellent binder agent composition solving problems such as the decrease in a charge/discharge capacity that occurs in a case where a silicon-containing active material is used, a slurry composition and an electrode in which the binder agent composition is used, and a method for preparing the electrode. The present invention relates to a binder agent composition containing (A) one or more kinds of polymers containing polyacrylic acid, (B) a bivalent to decavalent alcohol, and (C) water, a slurry composition for lithium batteries, containing 1) a silicon-containing active material, 2) a conductive assistant, and 3) the binder agent composition, an electrode for lithium batteries that has 1) a silicon-containing active material, 2) a conductive assistant, 3) a binder agent derived from the binder agent composition, and 4) a current collector, and a method for preparing an electrode for lithium batteries, including coating a current collector with the slurry composition and drying the slurry composition after the coating.

The present invention relates to a polymer electrolyte of a multi-layer structure and an all solid-state battery comprising the same, wherein the polymer electrolyte can exhibit an effect capable of stably operating in the high voltage positive electrode and in the low voltage negative electrode, when using the polymer solid electrolyte having a multi-layer structure, which includes the first polymer electrolyte layer and the second polymer electrolyte layer of the present invention, and the all solid-state battery containing it is applicable in the battery field of electric vehicle in which high capacity and high-power battery are used.

An electrode comprising a support made of a conductor or semiconductor, at least one nanostructure made of a conductor or semiconductor, on at least one of the support surfaces, a layer of redox polymer containing dione units deposited onto the at least one nanostructure. The present disclosure also concerns processes for preparing an electrode coated with such a redox polymer and electrode-based energy storage device containing such a coated electrode.