Abstract: An embodiment of the present invention relates to a porous silicon composite, a porous silicon-carbon composite comprising same, and an anode active material, wherein the porous silicon composite and the porous silicon-carbon composite each comprise silicon particles and a magnesium compound together and satisfy a molar ratio (O/Si) of oxygen (O) atom to silicon (Si) atom in a specific range, so that the application of the porous silicon composite and the porous silicon-carbon composite to an anode active material leads to an excellent capacity retention rate as well as a significant improvement in discharge capacity and initial efficiency.

Abstract: An embodiment of the present invention relates to a porous silicon structure, a porous silicon-carbon composite comprising same, and a negative electrode active material. The porous silicon structure and the porous silicon-carbon composite each have a molar ratio (O/Si) of oxygen (O) atoms to silicon (Si) atoms that satisfies a specific range, and thus, when applied to a negative electrode active material, the porous silicon structure and the porous silicon-carbon composite can have excellent capacity retention and remarkably enhanced discharge capacity and initial efficiency.

Abstract: An embodiment of the present invention relates to: an anode material for a lithium ion secondary battery, comprising a silicon-silicon carbide composite; a preparation method therefor; and a lithium ion secondary battery comprising same, and, more specifically, the anode material for a lithium ion secondary battery, according to the embodiment, is an anode material, which comprises a silicon-silicon carbide composite containing silicon particles and silicon carbide particles, wherein the silicon particles and the silicon carbide particles in the silicon-silicon carbide composite are dispersed from each other and the amount of the silicon carbide particles satisfies a specific range, and thus high capacity and excellent cycle characteristics can be implemented while a low volume expansivity is maintained.

Abstract: The present invention relates to a porous silicon-based composite, a preparation method therefor, and an anode active material comprising same, and, more specifically, the porous silicon-based composite comprises silicon particles and fluoride, and thus a porous silicon-based composite with excellent selective etching efficiency can be obtained, and the anode active material comprising same can further improve a discharge capacity and a capacity retention while holding the excellent initial efficiency of a secondary battery.

Abstract: The present invention provides a porous silicon-carbon composite, a manufacturing method therefor, and a negative electrode active material comprising same. Since the porous silicon-carbon composite of the present invention includes silicon particles, magnesium fluoride, and carbon, the initial efficiency and capacity retention ratio of a secondary battery can be further increased as well as the discharge capacity thereof.

Abstract: An embodiment of the present invention relates to a porous silicon-based carbon composite, a method for preparing same, and a negative electrode active material comprising same. The porous silicon-based carbon composite according to an embodiment comprises silicon particles capable of intercalating and deintercalating lithium, a magnesium compound, and carbon, and satisfies a molar ratio (Mg/Si) of magnesium atoms to silicon atoms present in the composite of 0.02-0.30 and a molar ratio (O/Si) of oxygen atoms to silicon atoms in the composite of 0.40-0.90. Thus, when the porous silicon-based carbon composite is applied to a negative electrode active material, initial efficiency and capacity retention as well as discharge capacity can be enhanced.

Abstract: The present invention relates to a cable comprising a crosslinked layer obtained from a polymer composition, the polymer composition comprising: a polymer blend comprising an ethylene vinyl acetate (EVA) copolymer, nitrile rubber (NBR), and an ethylene-methyl acrylate (EMA) copolymer; a crosslinking agent; and a flame-retardant filler.

Abstract: A mixed silver powder and a conductive paste comprising the powder are disclosed. The mixed silver powder is obtained by mixing two or more spherical silver powders having different properties from each other. The mixed powder may minimize the disadvantages of the respective types of the two or more powders and maximize the advantages thereof, thereby improving the characteristics of products. In addition, by comprehensively controlling the particle size distribution of surface-treated mixed silver powder and the particle diameter and specific gravity of primary particles, a high-density conductor pattern, a precise line pattern, and the suppression of aggregation over time can be simultaneously achieved.

Abstract: An embodiment of the present invention relates to a silicon-based carbon composite, a preparation method therefor, and an anode active material for a lithium secondary battery, comprising same, and, more specifically, the silicon-based carbon composite of the present invention is a silicon-based carbon composite having a core-shell structure, wherein the core comprises silicon, silicon oxide compound and magnesium silicate, the shell comprises at least two carbon layers comprising a first carbon layer and a second carbon layer, and the second carbon layer is reduced graphene oxide, and thus, during application of the silicon-based carbon composite to an anode active material for a secondary battery, the charge/discharge capacity, initial charge/discharge efficiency and capacity retention of the secondary battery can be improved.

Abstract: A cable is provided having at least one elongated conductor surrounded by at least one cross-linked layer, said layer being obtained from a polymer composition comprising a polymer, a crosslinking agent, and an amine as co-crosslinking agent, wherein said amine has a nucleophilic value (N) of 14 or more.

Abstract: The present invention provides a silicon-silicon composite oxide-carbon composite, a method for preparing same, and a negative electrode active material for a lithium secondary battery, comprising same. More particularly, the silicon-silicon composite oxide-carbon composite of the present invention has a core-shell structure wherein the core comprises silicon, a silicon oxide compound, and magnesium silicate, and the shell comprises a carbon layer. In addition, by having a specific range of span values through the adjustment of particle size distribution of the composite, when used as a negative electrode active material of a secondary battery, the composite can improve not only the capacity of the secondary battery but also the cycle characteristics and initial efficiency thereof.

Abstract: A mixed silver powder and a conductive paste comprising the powder are disclosed. The mixed silver powder is obtained by mixing two or more spherical silver powders having different properties from each other. The mixed powder may minimize the disadvantages of the respective types of the two or more powders and maximize the advantages thereof, thereby improving the characteristics of products. In addition, by comprehensively controlling the particle size distribution of surface-treated mixed silver powder and the particle diameter and specific gravity of primary particles, a high-density conductor pattern, a precise line pattern, and the suppression of aggregation over time can be simultaneously achieved.

Abstract: A secondary battery contains a lithium-predoped, silicon-based negative active material. The secondary battery realizes safety and further enhances energy density, cycle characteristics, and rate characteristics. The secondary battery can remarkably improve initial discharge capacity and capacity retention. A method for manufacturing the secondary battery is also disclosed. The method incudes preparing a negative electrode, interposing a separator between the negative electrode and a lithium metal plate to prepare a cell, electrochemically activating the cell to predope the negative electrode with lithium.

Abstract: The present invention relates to silver particles capable of having a uniform particle distribution, preventing agglomeration of a powder, and significantly improving dispersibility, the silver particles each having pores therein, and to a manufacturing method therefor and, more specifically, to a manufacturing method for silver particles, the method comprising a silver-complex forming step, a silver slurry preparing step, and a silver particle obtaining step, and to silver particles manufactured therefrom.

Abstract: A silicon ? silicon oxide-carbon complex has a core-shell structure in which the core comprises silicon particles, a silicon oxide compound represented by SiOx (0<×2), and magnesium silicate, and the shell forms a carbon coating, and has a specific range of conductivity, whereby the use of the complex as a negative electrode active material for a secondary battery can provide the secondary battery with an improvement in capacity as well as cycle characteristics and initial efficiency.

Abstract: A mixed silver powder and a conductive paste comprising the powder are disclosed. The mixed silver powder is obtained by mixing two or more spherical silver powders having different properties from each other. The mixed powder may minimize the disadvantages of the respective types of the two or more powders and maximize the advantages thereof, thereby improving the characteristics of products. In addition, by comprehensively controlling the particle size distribution of surface-treated mixed silver powder and the particle diameter and specific gravity of primary particles, a high-density conductor pattern, a precise line pattern, and the suppression of aggregation over time can be simultaneously achieved.

Abstract: The present invention relates to a crosslinkable polymer composition for use as a sheath layer of cable, and to a cable comprising a crosslinked layer obtained from said composition. The crosslinkable polymer composition according to the present invention comprises a polymer blend of ethylene vinyl acetate copolymer and ethylene methyl acrylate copolymer, a flame retardant filler and a crosslinking agent.

Abstract: The present invention relates to a silicon oxide composite for a lithium secondary battery anode material and a method for manufacturing same and, more specifically, to a silicon oxide composite for a lithium secondary battery anode material and a method for manufacturing same, wherein the silicon oxide composite comprises a Si cluster and MgxSiOy(0?x?3, 0?y?5) formed on a peripheral portion of the Si cluster.

Abstract: A mixed silver powder and a conductive paste comprising the powder are disclosed. The mixed silver powder is obtained by mixing two or more spherical silver powders having different properties from each other. The mixed powder may minimize the disadvantages of the respective types of the two or more powders and maximize the advantages thereof, thereby improving the characteristics of products. In addition, by comprehensively controlling the particle size distribution of surface-treated mixed silver powder and the particle diameter and specific gravity of primary particles, a high-density conductor pattern, a precise line pattern, and the suppression of aggregation over time can be simultaneously achieved.

Abstract: The present invention relates to a crosslinkable polymer composition for use as a sheath layer of cable, and to a cable comprising a crosslinked layer obtained from said composition. The crosslinkable polymer composition according to the present invention comprises a polymer blend of ethylene vinyl acetate copolymer and ethylene methyl acrylate copolymer, a flame retardant filler and a crosslinking agent.