A nonaqueous carbon nanotube dispersion liquid includes carbon nanotubes with an average fiber length of 100 m or more, a nonaqueous solvent, and a dispersant that is soluble in the nonaqueous solvent and has a weight-average molecular weight of 70000 or more. A content of the dispersant is 10 parts by mass or more and 500 parts by mass or less relative to 100 parts by mass of the carbon nanotubes.

Organic color center-tailored carbon nanotubes, particularly semiconducting single-walled carbon nanotubes, are of significant interest for imaging, sensing, and quantum information processing applications. A high-yield, simple, one-pot synthetic route for producing these materials exceeding the current g/mL scale is provided. Adding an acid solution of raw carbon nanotubes, nitrite, and an aniline derivative into a reactive solvent, such as water, results in covalently bonded organic color center-tailored nanotubes. No radical initiator or heating is required for the reaction. The chemistry works for all the nanotube chiralities investigated. The synthesized materials are neat solids that can be readily dispersed in either water or an organic solvent using a surfactant or polymer depending on the specific application. The OCC-products can also be further sorted into single chirality-enriched fractions with defect-specific photoluminescence that is tunable over approximately 1100 to approximately 1550 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.

The present disclosure provides compositions and methods for dispersion of CNTs using a CNT solvent comprising an aromatic ring structure including at least one sulfonic acid functional group. Alternatively, the aromatic ring structure further includes at least a linear or branched alkyl chain. Examples of the carbon nanotube solvent includes dodecyl benzene sulfonic acid.

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.

The present invention relates to a carbon nanotube dispersion to which an auxiliary dispersant containing polyethylene glycol, polystyrene, and a cellulose-based component is applied, and a method for preparing the same, and the carbon nanotube dispersion of the present invention has excellent viscosity stability during room-temperature and high-temperature storage.

The invention relates to electrotechnical industry, more particularly to lithium-ion batteries, and even more particularly to lithium-ion batteries with silicon-containing negative electrode (anode). The invention provides a method for producing an anode slurry (paste), an anode slurry (paste), a method for producing an anode for a lithium-ion battery, an anode for a lithium-ion battery, and a lithium-ion battery with a high initial specific capacity and a long cycle life with a large number of charge-discharge cycles over which the battery retains at least 80% of its initial capacity. This result becomes possible due to the presence in the anode material of bundles of single-walled and/or double-walled carbon nanotubes having a length of less than 5 m, together with bundles of single-walled and/or double-walled carbon nanotubes having a diameter of more than 500 nm and a length of more than 10 m.

The present disclosure describes methods of producing superhydrophobic carbon nanotube sheets. The methods disclosed herein allow the rapid and scalable production of superhydrophobic carbon nanotube sheets that may remain on a substrate, or they may be removed from the substrate to produce freestanding superhydrophobic carbon nanotube sheets. The carbon nanotube sheets produced by the present methods were confirmed to be superhydrophobic by water droplet contact angle.