Abstract: A circuit board according to an embodiment comprises: an insulation layer; a circuit pattern disposed on the upper surface or under the lower surface of the insulation layer; and a buffer layer disposed on at least one surface of the upper surface and the lower surface of the insulation layer, wherein the buffer layer includes carbon, nitrogen, and oxygen, the ratio of the nitrogen to the carbon ((carbon/nitrogen)*100) is 5 to 15, and the ratio of the oxygen to the carbon ((carbon/oxygen)*100) is 15 to 30.

Abstract: A separator for a secondary battery includes a porous substrate and an inorganic coating layer formed on one or both surfaces of the porous substrate and including an inorganic material, wherein an average particle diameter D50 of the inorganic material is 3 to 20% of a thickness of the inorganic coating layer, wherein a TMA fracture temperature of the separator is 150° C. or higher.

Abstract: A circuit board according to an embodiment includes: an insulating portion including a plurality of insulating layers; a circuit pattern disposed on surfaces of the plurality of insulating layers; and a via passing through at least one insulating layer among the plurality of insulating layers; wherein the insulating portion includes: a first insulating portion including at least one insulating layer; a second insulating portion disposed on the first insulating portion and including a plurality of insulating layers; and a third insulating portion disposed under the first insulating portion and including a plurality of insulating layers; wherein the first insulating portion is formed of prepreg containing glass fibers, wherein at least one of the second insulating portion and the third insulating portion includes a resin coated copper (RCC) and a solder resist disposed on the RCC, wherein the circuit pattern is disposed on a surface of the solder resist, and wherein the via is formed passing through the solder

Abstract: A circuit board according to an embodiment includes an insulating layer; and a circuit pattern layer disposed on the insulating layer, wherein the insulating layer includes a surface layer containing fluorine (F), and the circuit pattern layer is disposed on the surface layer of the insulating layer.

Abstract: A circuit board according to an embodiment includes a first insulating layer, a coating layer disposed on the first insulating layer, and a circuit pattern layer disposed on the coating layer, wherein the circuit pattern layer includes a first metal layer disposed on the coating layer, and a second metal layer disposed on the first metal layer, the coating layer includes a first functional group, and the first insulating layer includes a reactive group bonded to the first functional group.

Abstract: The present invention relates to a method of purifying a Clostridium botulinum toxin complex protein.

Abstract: The present invention relates to a method of purifying a non-toxic protein-removed Clostridium botulinum neurotoxin protein.

Abstract: A separator for a secondary battery includes a porous polymer material; and a coating layer including an inorganic material and a binder on one or both surfaces of the porous polymer material, wherein a ratio of average pore size of the separator to a maximum pore size, measured by a bubble point method, is 0.5 to 0.99, and surface roughness Rz is 2.5 or less, and the separator may have excellent withstand voltage characteristics as a thin film and may exhibit suitable evaluation characteristics in a Hi-pot test performed during a battery assembly process.

Abstract: A resin composition for a semiconductor package according to an embodiment includes a resin composition that is a composite of a resin and a filler disposed in the resin, wherein the filler has a content in a range of 68 wt % to 76 wt % in the resin composition, wherein the filler includes a first filler group composed of fillers having a first diameter; a second filler group composed of fillers having a second diameter smaller than the first diameter; and a third filler group composed of fillers having a third diameter smaller than the second diameter, and contents of each of the first filler group, the second filler group, and the third filler group in the filler are different from each other.

Abstract: The present invention relates to a lithium battery cathode active material and a preparation method therefor, the material having an orientation formed by firing a density gradient precursor in which the density gradually changes from the inside of second particles, formed as an aggregate of primary particles, to the outside of the particles. The lithium battery cathode active material according to the present invention has an oriented structure, and thus can have a long lifespan and high capacity characteristics.

Abstract: The present disclosure includes a single-layer separator for a secondary battery including 60 to 80 wt% of porous aramid substrate, 17 to 30 wt% of inorganic matter, and 3 to 10 wt% of organic binder based on a total weight of the separator. The inorganic matter and the organic binder are impregnated into a pore of the porous aramid substrate.

Abstract: A circuit board according to an embodiment includes: an insulating portion including a plurality of insulating layers; a circuit pattern disposed on surfaces of the plurality of insulating layers; and a via passing through at least one insulating layer among the plurality of insulating layers; wherein the insulating portion includes: a first insulating portion including at least one insulating layer; a second insulating portion disposed on the first insulating portion and including a plurality of insulating layers; and a third insulating portion disposed under the first insulating portion and including a plurality of insulating layers; wherein the first insulating portion is formed of prepreg containing glass fibers, wherein at least one of the second insulating portion and the third insulating portion includes a resin coated copper (RCC) and a solder resist disposed on the RCC, wherein the circuit pattern is disposed on a surface of the solder resist, and wherein the via is formed passing through the solder

Abstract: A resin coated copper according to an embodiment includes: an insulating layer including a resin and a filler dispersed in the resin; and a copper foil layer disposed on the insulating layer, wherein the insulating layer has a plurality of pores formed on a surface in contact with the copper foil layer, and the plurality of pores have a width of 200 nm to 350 nm.

Abstract: A circuit board according to an embodiment comprises: an insulation layer; a circuit pattern disposed on the upper surface or under the lower surface of the insulation layer; and a buffer layer disposed on at least one surface of the upper surface and the lower surface of the insulation layer, wherein the buffer layer includes carbon, nitrogen, and oxygen, the ratio of the nitrogen to the carbon ((carbon/nitrogen)*100) is 5 to 15, and the ratio of the oxygen to the carbon ((carbon/oxygen)*100) is 15 to 30.

Abstract: The present invention relates to a positive active material for lithium secondary battery, its manufacturing method, and lithium secondary battery including the same, and it provides that a positive active material for lithium secondary battery, comprising: a core and a coating layer, wherein, the core is lithium metal oxide, the coating layer comprises boron, the boron compound in the coating layer comprises a lithium boron oxide and a boron oxide, the lithium boron oxide is included 70 wt % or more and 99 wt % in the entire coating layer, the lithium boron oxide comprises Li2B4O7, with respect to the lithium boron oxide 100 wt %, the content of Li2B4O7 is 55 wt % or more and 99 wt % or less.

Abstract: A positive electrode active material for a lithium secondary battery comprising a compound represented by Chemical Formula 1 is introduced. Li1+mNi1-w-x-y-zCowMnxM1yM2zO2-pXp??[Chemical Formula 1] (In the Chemical Formula 1, M1 and M2 are different from each other, and any one element selected from the group consisting of Al, Mg, Zr, Sn, Ca, Ge, Ti, Cr, Fe, Zn, Y, Ba, La, Ce, Sm, Gd, Yb, Sr, Cu and Ga respectively, X is any one element selected from the group consisting of F, N, S, and P, w, x, y, z, p and m are respectively 0.125<w<0.202, 0.153<x<0.225, 0?y?0.1, 0?z?0.1, 0.34?w+x?0.36, 0?p?0.1, and ?0.1?m?0.2.

Abstract: A pressure sensing insole according to an embodiment of the present invention includes: a first electrode layer including a first conductive region; a first adhesive layer disposed on the first electrode layer and including an insulating region; an intermediate layer disposed on the first adhesive layer; a second adhesive layer disposed on the intermediate layer and including an insulating region; and a second electrode layer disposed on the second adhesive layer and including a second conductive region.

Abstract: Provided are a composite separator for a secondary battery, a method for producing the same, and a lithium secondary battery including the same. Specifically, a composite separator for a secondary battery showing excellent physical properties such as thermal safety and electrochemical safety and also allowing simplification of a separator production process, a method for producing the same, and a lithium secondary battery including the same are provided.

Abstract: Provided are a composite separator for a secondary battery and a lithium secondary battery including the same, and specifically, a composite separator for a secondary battery showing excellent physical properties such as thermal safety and electrochemical safety, and a lithium secondary battery including the separator are provided.

Abstract: The present invention relates to a separator including a coating layer and a substrate, wherein phase-change peak temperatures measured by differential scanning calorimetry (DSC) at the time of a first temperature increase and at the time of a second temperature increase satisfy specific ranges, a method of producing the same, and an electrochemical device including the same. More particularly, the present invention relates to a separator that has improved thermal resistance and thus may improve battery safety and implement stable movement of lithium ions and a lithium secondary battery including the same.