Abstract: Silicon oxide-based negative electrode active materials and negative electrodes for a secondary battery are disclosed. In an embodiment, a negative electrode active material for a secondary battery includes a silicon oxide particle including a metal silicate; and a hydrocarbon coating layer on the silicon oxide particle, wherein a peak Pa in a Fourier transform infrared (FT-IR) spectral analysis of the negative electrode active material is detected in a range from 2880 cm?1 to 2950 cm?1 and a peak Pb in a FT-IR spectral analysis of the negative electrode active material is detected in a range from 2800 cm?1 to 2865 cm?1.

Abstract: Disclosed are a thermoplastic elastomeric composition for vehicle mounts which has improved surface energy and compression set while solving reduction in wear strength, by blending EPDM rubber, polypropylene, silicon, and poly(styrene-ethylene-butadiene-styrene) (SEBS) in appropriate amounts, and a molded article including the same.

Abstract: A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes a lithium metal oxide particle that contains tungsten and has a secondary shape in which a plurality of primary particles are aggregated. The lithium metal oxide particle includes a sulfur-containing portion formed between the primary particles in an inner region of the lithium metal oxide particle.

Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes lithium-transition metal composite oxide particles including a plurality of primary particles, and the lithium-transition metal composite oxide particles have a lithium-potassium-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.

Abstract: A non-aqueous electrolyte and a lithium secondary battery including the same are provided. The non-aqueous electrolyte includes a non-aqueous organic solvent, a lithium salt, an additive represented by Chemical Formula 1 or Chemical Formula 2, and an auxiliary additive including a carbonate-based compound. A content of the additive relative to a weight of the carbonate-based compound is in a range from 10 wt % to 50 wt %. Capacity properties at low temperature and lifespan properties at high temperature may be improved.

Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes a lithium-transition metal composite oxide particle including a plurality of primary particles, and the lithium-transition metal composite oxide particle includes a lithium-sulfur-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.

Abstract: An anode active material for a lithium secondary battery is provided which includes a composite including: a silicon-based material including a lithium silicate; and a lithium-containing phosphate, wherein a peak intensity ratio B/A is 0.01 to 0.5, wherein A is a peak intensity at 2?=28.5°, and B is a peak intensity at 2?=22.3°, when an X-ray diffraction (XRD) analysis is performed using a Cu—K? ray.

Abstract: An electrolyte for a lithium secondary battery includes a lithium salt, an organic solvent, and a compound represented by Chemical Formula 1. The compound forms a solid electrolyte interphase on a surface of an anode. A lithium secondary battery including the electrolyte and having improved high-temperature storage properties can be provided.

Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes a lithium-transition metal composite oxide particle including a plurality of primary particles, and the lithium-transition metal composite oxide particle includes a lithium-sulfur-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.

Abstract: Embodiments of the present invention provide a cathode active material for a lithium secondary battery. The cathode active material for a lithium secondary battery includes lithium-transition metal composite oxide particles, and a coating formed on each of the lithium-transition metal composite oxide particles. The coating includes a lithium-sulfur compound and a metal hydroxide. A residual lithium on a surface of the cathode active material is sufficiently removed to improve an ionic conductivity and low-resistance.

Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes a lithium-transition metal composite oxide particle including a plurality of primary particles, and the lithium-transition metal composite oxide particle includes a lithium-sulfur-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.

Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes lithium-transition metal composite oxide particles including a plurality of primary particles, and the lithium-transition metal composite oxide particles have a lithium-potassium-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.

Abstract: An electrolyte solution for a secondary battery according to an exemplary embodiment includes a lithium salt, a non-aqueous organic solvent, and a silatrane-based compound represented by Chemical Formula 1. By including the electrolyte solution for a secondary battery according to an exemplary embodiment, a secondary battery can exhibit improved storage characteristics and improved capacity characteristics.

Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes a lithium-transition metal composite oxide particle including a plurality of primary particles, and the lithium-transition metal composite oxide particle includes a lithium-sulfur-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.

Abstract: The present disclosure relates to a composition for manufacturing a secondary battery separator having excellent electrical conductivity and capable of minimizing occurrence of black scum on an electrode and a secondary battery thereof. The composition for manufacturing a secondary battery separator according to the present disclosure includes a polyethylene resin and an ionic liquid lubricant composition. The ionic liquid lubricant composition includes a pore-controlling agent, an ionic liquid, and paraffinic oil.

Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes lithium-transition metal composite oxide particles including a plurality of primary particles, and the lithium-transition metal composite oxide particles have a lithium-potassium-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.

Abstract: Disclosed are an ionic liquid, having wear resistance maintained at low temperatures and containing a divalent cation including at least one of bis(ammonium) and bis(phosphonium) and a monovalent anion including at least one of sulfonate and phosphate, and a lubricant composition including the ionic liquid.

Abstract: Disclosed are an ionic liquid, having wear resistance maintained at low temperatures and containing a divalent cation including at least one of bis(ammonium) and bis(phosphonium) and a monovalent anion including at least one of sulfonate and phosphate, and a lubricant composition including the ionic liquid.

Abstract: The present disclosure relates to a composition for manufacturing a secondary battery separator having excellent electrical conductivity and capable of minimizing occurrence of black scum on an electrode and a secondary battery thereof. The composition for manufacturing a secondary battery separator according to the present disclosure includes a polyethylene resin and an ionic liquid lubricant composition. The ionic liquid lubricant composition includes a pore-controlling agent, an ionic liquid, and paraffinic oil.

Abstract: The present invention relates to a method for producing anhydrosugar alcohol using an organic additive having one hydroxyl group. The present invention makes it possible to prevent oligomers and polymers from being produced by polymerization of isosorbide during dehydration of sorbitol molecules, and thus solves problems, including a reduction in fluidity in a dehydration reactor, interference with the flow of fluids in the reactor and pipelines, and interference with stirrer operation, which occur due to the oligomers and polymers.