Abstract: A separator for an electrochemical device includes a porous polymer substrate, and a porous coating layer formed on at least one surface of the porous polymer substrate, the porous coating layer includes inorganic particles and a polymer binder, the inorganic particles include, on surfaces thereof, a coating layer of a polymer including an amine group, and at least a portion of the polymer binder is crosslinked with the polymer including the amine group.

Abstract: A separator for an electrochemical device having excellent compression resistance, an electrochemical device including the same, and a method of manufacturing the same. The separator for an electrochemical device includes a polymer layer on at least one surface of a porous polymer substrate. The polymer layer includes a binder polymer having a crosslinked structure including a structure represented by the following Chemical Formula 1: wherein each of R1 and R2 independently represents any one selected from the group consisting of a substituted or non-substituted C1-C10 alkylene group, a substituted or non-substituted C3-C10 cycloalkylene group and a substituted or non-substituted C6-C20 arylene group, and n is an integer ranging from 1 to 200.

Abstract: The present invention relates to a separator for an electrochemical device includes a porous polymer substrate, and a porous coating layer formed on at least one surface of the porous polymer substrate, wherein the porous coating layer includes an acrylic polymer binder, a copolymer binder, and inorganic particles, and the copolymer binder has a weight average molecular weight of 40,000 to 80,000, and the copolymer binder and the inorganic particles are included in a weight ratio of 1:93 to 1:20.

Abstract: Disclosed is a separator suitable for an electrochemical device a porous including polymer substrate and an organic/inorganic composite porous coating layer on at least one side of the porous polymer substrate. The organic/inorganic composite porous coating layer includes particulate binder polymers and first inorganic particles, the particulate binder polymers include (a) hybrid polymer particles of a fluorine-containing polymer and an acrylic-containing polymer and (b) acrylic-containing polymer particles, the average particle diameter D50 of the acrylic-containing polymer particles “a” is in a range of 1 ?m to 7.5 ?m, the average particle diameter D50 of the inorganic particles “b” is in a range of 200 nm to 800 nm, a/b is in a range of 2 to 15, and the average particle diameter D50 of the hybrid polymer particles is smaller than the average particle diameter D50 of the acrylic-containing polymer particles.

Abstract: A coating apparatus for continuously forming a coating layer on each surface of a substrate film includes a water tank located on a movement path of the substrate film, a water tank partition vertically located in the water tank, the water tank partition being configured to partition an inner space of the water tank into two zones, including a first water tank portion and a second water tank portion, a roller unit configured to continuously transfer the substrate film, and a heating unit located outside the water tank. The water tank partition is located spaced apart from an inner bottom surface of the water tank by a predetermined distance.

Abstract: A separator for an electrochemical device including a porous polymer substrate and a porous coating layer on at least one side of the porous polymer substrate. The porous coating layer includes first binder particles, second binder particles, and inorganic particles. The inorganic particles are mostly dispersed in a first surface region of the porous coating layer, and the second binder particles are mostly dispersed in a second surface region of the porous polymer substrate, in which the first surface region faces the porous polymer substrate and the second surface region is an opposite surface region to the first surface region. The inorganic particles have a larger weight per particle than each respective weight per particle of the first and second binder particles.

Abstract: A separator for an electrochemical device including a porous polymer substrate and a porous coating layer on at least one side of the porous polymer substrate. The porous coating layer includes first binder particles, second binder particles, and inorganic particles. The inorganic particles are mostly dispersed in a first surface region of the porous coating layer, and the second binder particles are mostly dispersed in a second surface region of the porous polymer substrate, in which the first surface region faces the porous polymer substrate and the second surface region is an opposite surface region to the first surface region. The inorganic particles have a larger weight per particle than each respective weight per particle of the first and second binder particles.

Abstract: A separator for an electrochemical device including a porous polymer substrate and a porous coating layer on at least one side of the porous polymer substrate. The porous coating layer includes first binder particles, second binder particles, and inorganic particles. The inorganic particles are mostly dispersed in a first surface region of the porous coating layer, and the second binder particles are mostly dispersed in a second surface region of the porous polymer substrate, in which the first surface region faces the porous polymer substrate and the second surface region is an opposite surface region to the first surface region. The inorganic particles have a larger weight per particle than each respective weight per particle of the first and second binder particles.

Abstract: A separator and an electrochemical device comprising same are provided. The separator includes a porous polymer substrate having a plurality of pores; a first porous coating layer on one surface of the porous polymer substrate; and a second porous coating layer on the other surface of the porous polymer substrate. The first porous coating layer includes a plurality of first inorganic particles and first binder particles on a part or all of the surface of the first inorganic particles to connect and fix the first inorganic particles. The second porous coating layer includes a plurality of second inorganic particles and second binder particles on a part or all of the surface of the second inorganic particles to connect and fix the second inorganic particles. The average particle diameter of the second binder particles is at least 10-fold larger than the average particle diameter of the first binder particles.

Abstract: The present disclosure relates to a separator for a secondary battery comprising a porous polymer substrate; a first layer formed on at least one surface of the porous polymer substrate, and comprising inorganic particles and a nonparticulate acrylic polymer having a glass transition temperature of 15° C. or less, wherein the nonparticulate acrylic polymer connects and fixes the inorganic particles; and a second layer formed on an upper surface of the first layer, and comprising a particulate acrylic polymer having a glass transition temperature of 20° C. to 50° C. The separator for a secondary battery according to the present disclosure has good adhesion with electrode and can solve the resistance problem in the presence of the inorganic particles.

Abstract: A separator including a separator substrate including a porous material and an inorganic layer on at least one surface of the separator substrate. Each of the separator substrate and the inorganic layer has porosity related to permeability of the separator: (10×porosity of separator substrate)?(4×porosity of inorganic layer)?permeability of separator.

Abstract: An electrode for a lithium secondary battery may include an electrode mixture layer and an electrode current collector. The electrode mixture layer may be disposed on at least one of a first surface and a second surface of the electrode current collector. The electrode current collector may include an electrode tab extending from an outer periphery of the electrode mixture layer as a portion other than a portion at which the electrode mixture layer is formed. An adhesive coating portion may be disposed at at least a portion of an upper surface of the electrode tab, at at least a portion of an upper surface of the electrode mixture layer, or at both of the foregoing. The electrode may be coupled to a separator via the adhesive coating portion.

Abstract: A separator including a separator substrate having a porous structure and a coating layer on at least one surface of the separator substrate. The coating layer includes a surface-modified inorganic material, wherein the surface-modified inorganic material includes particles having a core-shell structure wherein a polymer is bonded to a surface of an inorganic particle.

Abstract: A separator for a lithium secondary battery, a method for manufacturing the same, and a secondary battery including the same. The separator includes a porous coating layer including a top layer, an intermediate layer, and a bottom layer. An amount of a particle-type binder polymer present in the top layer is larger than an amount of the particle-type binder polymer present in the bottom layer. The porous coating layer also includes a dispersant having a carboxyl group and a glycol group.

Abstract: A separator for a secondary battery, including: a porous polymer substrate having a plurality of pores; and a porous coating layer on at least one surface of the porous polymer substrate. The porous coating layer includes a plurality of inorganic particles and a urethane bond-containing crosslinked polymer. The urethane bond-containing crosslinked polymer is present partially or totally on surfaces of the inorganic particles wherein the inorganic particles are interconnected and fixed. The urethane bond-containing crosslinked polymer has a glass transition temperature (Tg) of ?15 to 32° C. A secondary battery including the separator is also disclosed.

Abstract: A separator for a lithium secondary battery, the separator including a separator substrate including a porous polymer resin and a heat resistance layer on at least one side of the separator substrate. The heat resistance layer includes a phenolic resin configured to be hardened when heated. The heat shrinkage at a high temperature is improved, and it is possible to prevent short circuit between electrodes.

Abstract: A separator for a secondary battery, including a porous polymer substrate; a porous coating layer on at least one surface of the porous polymer substrate. The porous coating layer includes a plurality of inorganic particles and a first binder polymer that interconnects and fixes the inorganic particles; and an adhesive layer on a surface of the porous coating layer opposite to the porous polymer substrate. The adhesive layer includes a second binder polymer, and the adhesive layer includes a first layer in contact with the surface of the porous coating layer opposite to the porous polymer substrate, and a second layer integrated with the first layer and the second layer faces an electrode. The second layer has an average pore size larger than the average pore size of the first layer. The separator for a secondary battery can improve the problem related with resistance, while ensuring adhesion to an electrode.

Abstract: A composite separator for an electrochemical device. The composite separator has an electrode adhesive layer, and two types of solvents are used when coating the electrode adhesive layer. The ratio of polarity of the solvents is used to induce a beta crystal phase of the second binder resin, and thus a uniform porous structure is formed to provide an improved lithium-ion conduction path. In this manner, even when the electrode adhesive layer is formed on the composite separator, the composite separator does not cause an increase in resistance.

Abstract: A separator including a coating layer on the surface of a porous separator substrate, wherein the coating layer has a porous structure derived from the interstitial volumes between the inorganic particles, and thus the separator has suitable porosity and a sufficient degree of electrolyte retention. Further, since the separator includes the inorganic coating layer on the surface of the porous separator substrate, the separator ensures heat resistance and is prevented from shrinking, even when the internal temperature of a battery is increased. A method for manufacturing a separator including forming the coating layer and the electrode adhesive portion on the coating layer through a single step using the density of inorganic particles and that of binder resin particles, and thus has an advantage in terms of convenience of processing.

Abstract: A separator including a variable binder, wherein a particle size of the variable binder changes depending on pH of the variable binder and a method of manufacturing the same, and more particularly to a separator configured such that a variable binder is used in a separator coating layer to reduce resistance of a battery and to maintain uniform adhesive force while improving air permeability and a method of manufacturing the same.