A tungsten oxide coating material for an electrochromic device that is a coating material for forming a tungsten oxide thin film having electrochromic characteristics, the coating material comprising: a solvent; tungsten oxide nanoparticles dispersed in the solvent; and a binder, wherein in the tungsten oxide nanoparticles, a half-value width of a peak detected at 291 in X-ray diffraction analysis (20) is 2 or less, and a primary particle size is 5 to 25 nm.

Provided is an electrode slurry carbon nanotube liquid dispersion which improves charge/discharge cycle characteristics. An electrode slurry carbon nanotube liquid dispersion which is one aspect of the present disclosure and contains 0.1-1.5 mass % of carbon nanotubes, a dispersion medium, and carboxymethyl cellulose, the viscosity of which at 100s.sup.1 in a 3% aqueous solution is 2-200 mPa.Math.s, wherein: the carboxymethyl cellulose content constitutes 50-250 parts by mass relative to 100 parts by mass of carbon nanotubes; the viscosity at 100s.sup.1 is 50-200 mPa.Math.s in a state in which the carbon nanotubes are dispersed; and the particle distribution according to the laser diffraction method exhibits a D10 of 0.3-1.0 m, a D50 of 3-10 m and a D90 of 60 m or less in a state in which the carbon nanotubes are dispersed.

A conductive material pre-dispersed slurry for a secondary battery electrode includes: a conductive material; a dispersant for dispersing the conductive material; and a solvent mixed with the conductive material and the dispersant. The dispersant includes a cellulose-based compound and a vinyl-based or acrylic compound, and the cellulose-based compound and the vinyl-based or acrylic compound in the dispersant have a weight ratio of about 25:1 to 1:25.

Provided is an electrode slurry carbon nanotube liquid dispersion which improves charge/discharge cycle characteristics. An electrode slurry carbon nanotube liquid dispersion which is one aspect of the present disclosure and contains 0.1-1.5 mass % of carbon nanotubes, a dispersion medium, and carboxymethyl cellulose, the viscosity of which at 100 s.sup.1 in a 3% aqueous solution is 2-200mPa.Math.s, wherein: the carboxymethyl cellulose content constitutes 50-250 parts by mass relative to 100 parts by mass of carbon nanotubes; the viscosity at 100 s.sup.1 is 50-200mPa.Math.s in a state in which the carbon nanotubes are dispersed; and the particle distribution according to the laser diffraction method exhibits a D10 of 0.3-1.0 m, a D50 of 3-10 m and a D90 of 60 m or less in a state in which the carbon nanotubes are dispersed.

A dispersion containing water, a gelling agent, and 0.3 to 2 wt. % of single-walled and/or double-walled carbon nanotubes with a weight ratio of the single-walled and/or double-walled carbon nanotubes to the gelling agent at least 0.05 and not more than 10, wherein the dispersion contains gel particles formed by agglomerates of gelling agent molecules physically bound into a weak gel network by single-walled and/or double-walled carbon nanotubes. Also disclosed a method for producing a dispersion, a method for producing cathode and anode slurries, cathode and anode slurries, and a cathode and an anode are provided. The problems of obtaining an aqueous dispersion of single-walled and/or double-walled carbon nanotubes with both high stability during storage and transportation and low viscosity under various processes of its application, and producing electrode slurries and then lithium-ion battery electrodes, are addressed.

The present disclosure generally relates to electrode slurry compositions, including those comprising an electrode active material; a binder; and a microemulsion comprising an aqueous phase, a water-immiscible phase, and an amphiphile, wherein the electrode active material and binder are incorporated within the microemulsion, which can be used to prepare electrodes, including for the production of electrochemical cells.

An active material layer of an electrode contains an active material, carbon nanotubes, and CMC derived from carboxymethylcellulose ammonium (NH.sub.4-CMC). The content of CMC derived from NH.sub.4-CMC in the active material layer is 0.3-0.6 mass %. The content of carbon nanotubes in the active material layer is 0.005-0.08 mass %. The active material layer includes a main body portion and an edge portion surrounding the main body portion. The maximum thickness of the edge portion is 104% of the thickness of the main body portion. In a plan view of the electrode in the thickness direction of the active material layer, the maximum dimension of the edge portion from the boundary between the main body portion and the edge portion to the tip of the edge portion is 5 mm.

A disclosed negative electrode slurry for a lithium ion secondary battery contains a negative electrode active material, a thickener, an antiseptic component, and a solvent. The thickener includes a carboxymethylcellulose salt. The solvent includes water. The antiseptic component includes an alkane polyol and a compound represented by the following formula (1), where R1 to R5 each independently represent a hydrogen atom or a hydrocarbon group, the total number of carbon atoms included in R1 to R5 is 4 to 6, and at least three of R1 to R5 represent hydrogen atoms.

A dispersion containing water, a gelling agent, and 0.3 to 2 wt. % of single-walled and/or double-walled carbon nanotubes with a weight ratio of the single-walled and/or double-walled carbon nanotubes to the gelling agent at least 0.05 and not more than 10, wherein the dispersion contains gel particles formed by agglomerates of gelling agent molecules physically bound into a weak gel network by single-walled and/or double-walled carbon nanotubes. Also disclosed a method for producing a dispersion, a method for producing cathode and anode slurries, cathode and anode slurries, and a cathode and an anode are provided. The problems of obtaining an aqueous dispersion of single-walled and/or double-walled carbon nanotubes with both high stability during storage and transportation and low viscosity under various processes of its application, and producing electrode slurries and then lithium-ion battery electrodes, are addressed.

This invention relates to a barrier paper comprising a paper base material and a carboxymethyl cellulose coating layer formed on a surface of the paper base material, wherein the paper base material is a cellulosic paper and the carboxymethyl cellulose coating layer comprises 80-100% by weight of carboxymethyl cellulose, based on dry weight.