Abstract: A conductive material dispersion, an electrode, and a secondary battery prepared using the conductive material dispersion are provided. The conductive material dispersion may include a carbon-based conductive material, a main dispersant, an auxiliary dispersant, and a non-aqueous solvent. The main dispersant may include a hydrogenated nitrile-based copolymer having a weight average molecular weight of 5,000 to 100,000, and the auxiliary dispersant may include a compound containing methylcellulose as a main chain.

Abstract: A system for determining a filter for evaluating a dissolution quality of a binder solution for a secondary battery electrode according to the present technology includes: a pressure container which accommodates a binder solution; a pressure medium supply source which supplies pressure medium of a predetermined pressure to the pressure container; a filter which is connected to the pressure container by a pipe; a flow rate measuring unit which measures a flow rate of the binder solution filtered by the filter; and a determination unit which measures a time point when a flow rate reaches a specific value predetermined in consideration of an initial flow rate by repeating measurement of the flow rate using each filter having a different pore size, and determines a filter having a filter size in an optimal pore size range based on the time point.

Abstract: A conductive agent dispersion includes carbon nanotubes, a dispersant, and a dispersion medium, wherein the dispersant includes a main dispersant and an auxiliary dispersant, wherein the main dispersant is a hydrogenated nitrile-based copolymer, a residual double bond value of the hydrogenated nitrile-based copolymer according to Equation 1 satisfies 0.3 wt % or less, and the auxiliary dispersant is a copolymer including an oxyalkylene unit and at least one of a styrene unit and an alkylene unit. An electrode and a lithium secondary battery which are prepared by using the same are also provided.

Abstract: A method for producing a polymer containing metal atoms or halogen atoms at the terminals thereof with excellent efficiency while minimizing or eliminating side reactions or the like is provided. The method can also freely control molecular weight characteristics of the polymer.

Abstract: Provided is a negative electrode including a negative electrode active material layer, wherein the negative electrode active material layer includes a negative electrode active material, a binder, a conductive agent, and a dispersant, wherein the conductive agent includes a carbon nanotube structure in which a plurality of single-walled carbon nanotube units are bonded side by side, the carbon nanotube structure has an average length of 1 ?m to 20 ?m, and QBR according to Equation 1 is in a range of 1 to 1.75 QBR = Bs / Bf .

Abstract: The present technology relates to an adhesion strength measurement system for a wet electrode specimen that can evaluate the adhesion strength of an electrode specimen impregnated with an electrolyte solution, and an adhesion strength measurement method for a wet electrode specimen using the same. The adhesion strength measurement system includes: a test substrate; an electrode specimen attached to the test substrate; a fixing jig configured to fix the test substrate so that the electrode specimen attached to the test substrate is immersed in an electrolyte solution; and an adhesion strength measurement unit configured to measure a force at which a mixture layer of the electrode specimen is peeled off by applying a tensile force to the gripped electrode specimen, the adhesion strength measurement unit including a grip part configured to grip one region of the electrode specimen.

Abstract: The present application relates to a pinning composition, a laminate comprising the same, and a method for producing the same. The pinning composition of the present application can impart directionality and location selection properties to a polymer membrane comprising a self-assembly structure of a block copolymer. The pinning composition of the present application exhibits excellent reaction selectivity, whereby it can form a vertical lamella structure with a high degree of alignment. In addition, the pinning composition of the present application may be suitable for application to low temperature processes.

Abstract: A current collector and a method of manufacturing the same are disclosed herein. In some embodiments, a current collector includes a complex polymer film layer, wherein the complex polymer film layer includes: a polymer matrix; and a metal material dispersed in the polymer matrix, wherein the metal material is fiber-shaped or plate-shaped, and the metal material is oriented in one direction.

Abstract: The present application relates to a cathode, a method of manufacturing the same, and a battery including the same. The present application may provide a cathode and a method of manufacturing the same, wherein the cathode comprises an active material layer that contains an acrylic polymer and exhibits excellent resistance to an electrolyte, excellent dispersion of its components and great adhesion to a current collector.

Abstract: A polymer for a gel polymer electrolyte, a gel polymer electrolyte and a lithium secondary battery comprising the same are disclosed herein. In some embodiments, a polymer for the gel polymer electrolyte includes a copolymer having a main chain and a first side chain and a second side chain bonded to the main chain, wherein the main chain contains a fluoropolymer, wherein the first side chain contains a siloxane group and the second side chain contains an acrylic polymer. The polymer improves stability of a gel polymer electrolyte and a lithium secondary battery including the same.

Abstract: A transportation head for a microchip transfer device capable of minimizing mechanical and chemical damage to a microchip, a microchip transfer device having same, and a transfer method thereby, and the transportation head includes a head body having a pickup area and a dummy area; a first protruding pin disposed in the pickup area of the head body; and a liquid droplet attached to the first protruding pin.

Abstract: The present application can provide a preparation method that can effectively produce a polymer having desired molecular weight characteristics and solubility in a solvent, and having a monomer composition, which is designed freely and variously according to the purpose, without unnecessary components with excellent polymerization efficiency and conversion rates, and a dispersion comprising the polymer formed by the preparation method.

Abstract: An electrode insulating coating composition according to the present disclosure includes boehmite particles, a dispersant, a binder, and a non-aqueous solvent, wherein the dispersant includes a phenolic compound containing two or more aromatic rings, and is included in an amount of 1.2 to 8.8 parts by weight with respect to 100 parts by weight of the boehmite particles.

Abstract: Proposed is a method of measuring the slope of a drainpipe while moving through the drainpipe. The method includes following steps: a) continuously measuring a slope of a pipe using a slope sensor disposed in a vehicle when the vehicle moves; b) measuring distances to a ceiling of the pipe in real time through non-contact sensors disposed at four positions, that is, at both sides of front and rear portions the vehicle, the step b) being performed simultaneously with the step a); and c) calculating slope differences, which are the degrees of inclination to the front, rear, left, and right using trigonometry and then correcting the slope by reflecting the slope differences to the slope measured in the step a), when there are differences in the distances measured in step b).

Abstract: Provided is a conductive material dispersion comprising single-walled carbon nanotubes, a dispersant, a dispersion aid, and a dispersion medium, wherein the dispersant comprises polyvinyl butyral and hydrogenated nitrile butadiene rubber, and the dispersion aid comprises a compound represented by Formula 1. A-(R)n??[Formula 1] In Formula 1, A is a structure having a carbon number of 16 to 50 carbon number and comprising four or more aromatic rings and nitrogen, R is a structure comprising an anionic functional group, and n is an integer of 1 to 5.

Abstract: The present technology relates to a method of manufacturing an electrode for a secondary battery, and since an electrode is manufactured using an insulating composition including an aqueous binder substituted with a non-aqueous solvent, the wet adhesion of an insulating layer can be increased, and the gelation between an electrode slurry and the insulating composition, which is caused by using different types of binders, can also be prevented.

Abstract: A binder for preparing a positive electrode of a lithium-sulfur secondary battery, a composition including the binder, a positive electrode including the composition and a lithium-sulfur secondary battery including the positive electrode. The binder includes an acrylic polymer, and the acrylic polymer includes a unit formed from a hydroxyphenyl-based monomer or a disulfide-based monomer. The acrylic polymer may include 1 to 20 wt. % of units formed from the hydroxyphenyl-based monomer. The acrylic polymer may include 1 to 20 wt. % of units formed from the disulfide-based monomer. Such a battery has increased long-term stability due to suppression of leaching of the sulfur-based materials by absorption of lithium polysulfides.

Abstract: The present technology relates to an insulating composition having excellent wet adhesion and a preparation method thereof, and since an insulating coating layer has excellent wet adhesion in a liquid electrolyte, there is an advantage in that migration of lithium ions in an overlay region of an electrode can be blocked to suppress capacity expression and the like.

Abstract: The present application can provide a preparation method capable of preparing a desired polymer or conductive polymer film with excellent polymerization efficiency and conversion rates without consumption or modulation in the polymerization process, and a polymer and a conductive polymer film formed by the method. The present application can provide a method for preparing a polymer or a conductive polymer film having a desired level of transparency and conductivity, wherein desired physical properties such as solubility in a solvent or resistance to a solvent are effectively imparted thereto as necessary, and a polymer and a conductive polymer film formed by the method.

Abstract: A method for measuring the properties of an anode slurry, including preparing a kneaded anode slurry, measuring an insertion length of a measuring bar, and calculating a kneading energy of the anode slurry. Specifically, the method being capable of evaluating the degree of adsorption among a conductive material, an active material, and carboxy methyl cellulose (CMC) in a kneaded state of the anode slurry.