Abstract: A binder solution for an all-solid-state battery, an electrode slurry for an all-solid-state battery including the same and a method of manufacturing an all-solid-state battery using the same, and more particularly to a binder solution for an all-solid-state battery, in which a polymer binder configured such that a non-polar functional group is bonded to the end of a polar functional group is used, whereby the polar functional group is provided by a deprotection mechanism of the polymer binder through a thermal treatment, thus increasing adhesion between electrode materials to thereby improve battery capacity and enabling a wet process to thereby reduce manufacturing costs, an electrode slurry for an all-solid-state battery including the same and a method of manufacturing an all-solid-state battery using the same.

Abstract: Provided is a duct docking device for a ventilation seat of a vehicle. The duct docking device enables air to be easily blown to a seatback and a seat cushion with a passenger in a seat using only one blower by enabling a seatback duct mounted at the seatback and a seat cushion duct mounted at the seat cushion to be hermetically docked through a connector duct, etc. at an unfolded position of the seatback in which a passenger can sit, and by enabling the seatback duct mounted at the seatback and the seat cushion duct mounted at the seat cushion to be separated from each other at a folded position of the seatback in consideration of that there is no passenger in the seat.

Abstract: Provided is a secondary battery, specifically, a secondary battery having excellent stability and improved output characteristic and low temperature characteristic by including a cathode active material in which at least one of metals forming the cathode active material has a concentration gradient in at least a portion of a region between a central portion and a surface portion; and a conductive material mixture in which carbon nanotube is mixed with carbon black at an appropriate ratio, the carbon black being a spherical nanoparticle.

Abstract: Provided is a secondary battery, specifically, a secondary battery having excellent stability and improved output characteristic and low temperature characteristic by including a cathode active material in which at least one of metals forming the cathode active material has a concentration gradient in at least a portion of a region between a central portion and a surface portion; and a conductive material mixture in which carbon nanotube is mixed with carbon black at an appropriate ratio, the carbon black being a spherical nanoparticle.

Abstract: Provided is a secondary battery, specifically, a secondary battery having excellent stability and improved output characteristic and low temperature characteristic by including a cathode active material in which at least one of metals forming the cathode active material has a concentration gradient in an entire region from a central portion up to a surface portion; and a conductive material mixture in which carbon nanotube is mixed with carbon black at an appropriate ratio, the carbon black being a spherical nanoparticle.

Abstract: A lithium secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte, and more particularly, the positive electrode includes a positive active material including lithium-metal oxide in which at least one metal has the continuous concentration gradient from the center to the surface, and the non-aqueous electrolyte includes a lithium salt, a multinitrile compound, and an organic solvent, thereby improving storage characteristics at a high voltage and lifetime characteristics.

Abstract: A lithium secondary battery comprises a cathode, an anode and a non-aqueous electrolyte. The cathode includes a cathode active material containing lithium-metal oxide of which at least one of metals has a continuous concentration gradient from a core part to a surface part thereof, and is doped with transitional metal. The lithium-metal oxide includes elements M1, M2 and M3. One of M1, M2 and M3 has a concentration gradient range in which a concentration increases from the core part to the surface part.

Abstract: Provided is a secondary battery, specifically, a secondary battery having excellent stability and improved output characteristic and low temperature characteristic by including a cathode active material in which at least one of metals forming the cathode active material has a concentration gradient in an entire region from a central portion up to a surface portion; and a conductive material mixture in which carbon nanotube is mixed with carbon black at an appropriate ratio, the carbon black being a spherical nanoparticle.

Abstract: A lithium secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte, and more particularly, the positive electrode includes a positive active material including lithium-metal oxide in which at least one metal has a continuous concentration gradient from the center to the surface, and the negative electrode includes a negative active material including graphite having an average lattice distance (d002) in the range of 3.356 to 3.365 ?, thereby improving storage characteristics at a high temperature and lifetime characteristics.

Abstract: The present invention relates to a secondary battery, specifically, a secondary battery having excellent stability and improved output characteristic and low temperature characteristic by including a cathode active material in which at least one of metals forming the cathode active material has a concentration gradient in an entire region from a central portion up to a surface portion; and a conductive material mixture in which carbon nanotube is mixed with carbon black at an appropriate ratio, the carbon black being a spherical nanoparticle.

Abstract: Disclosed is a bipolar all solid-state battery, which can efficiently control a manufacturing process thereof and can improve electric properties thereof. In an exemplary embodiment, the bipolar all solid-state battery includes a unit cell including a first current collector having a first surface and a second surface opposite to the first surface; a first active material coated on the first surface of the first current collector, a second current collector having a first surface and a second surface opposite to the first surface; a second active material coated on the first surface of the second current collector and facing the first active material; and an all solid-state electrolyte formed between the first active material and the second active material. When a plurality of the unit cells are stacked, the first current collector and the second current collector are connected to each other through surface contact.

Abstract: Provided are a mixed cathode active material having improved power characteristics and safety, and a lithium secondary battery including the same. More particularly, the present invention relates to a mixed cathode active material which may assist power in a low SOC range to widen an available state of charge (SOC) range and may simultaneously provide improved safety by blending substituted LFP, in which operating voltage is adjusted by substituting a portion of iron (Fe) with other elements such as titanium (Ti), in order to prevent a rapid increase in resistance of manganese (Mn)-rich having high capacity but low operating voltage in a low SOC range (e.g., a SOC range of 10% to 40%), and a lithium secondary battery including the mixed cathode active material.

Abstract: The present invention features a high-capacity anode material for rapidly chargeable and dischargeable lithium secondary batteries, which is composed of Li4Ti5O12 nanoparticles. The Li4Ti5O12 nanoparticles of the present invention exhibit excellent crystallinity and high rate capability compared to those synthesized using a conventional polyol process or solid reaction process by converting Li4Ti5O12, which is a zero-strain insert material spotlighted as an anode active material for lithium secondary batteries, into Li4Ti5O12, having a high crystalline nanostructure using a solvothermal synthesis process without performing additional heat treatment. The present invention also features methods of, and a method of preparing the high-capacity anode materials described herein.

Abstract: Disclosed is a lithium secondary battery, including a cathode, an anode and a non-aqueous electrolyte, wherein the cathode includes a cathode active material containing lithium-metal oxide of which at least one of metals has a continuous concentration gradient from a core part to a surface part thereof, and is doped with transitional metal, such that the charge/discharge capacities and the power are significantly increased, and thereby it is possible to exhibit excellent performance under low temperature environments.

Abstract: The present invention relates to a secondary battery, specifically, a secondary battery having excellent stability and improved output characteristic and low temperature characteristic by including a cathode active material in which at least one of metals forming the cathode active material has a concentration gradient in an entire region from a central portion up to a surface portion; and a conductive material mixture in which carbon nanotube is mixed with carbon black at an appropriate ratio, the carbon black being a spherical nanoparticle.

Abstract: A lithium secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte, and more particularly, the positive electrode includes a positive active material including lithium-metal oxide in which at least one metal has the continuous concentration gradient from the center to the surface, and the non-aqueous electrolyte includes a lithium salt, a multinitrile compound, and an organic solvent, thereby improving storage characteristics at a high voltage and lifetime characteristics.

Abstract: A lithium secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte, and more particularly, the positive electrode includes a positive active material including lithium-metal oxide in which at least one metal has a continuous concentration gradient from the center to the surface, and the negative electrode includes a negative active material including graphite having an average lattice distance (d002) in the range of 3.356 to 3.365 ?, thereby improving storage characteristics at a high temperature and lifetime characteristics.

Abstract: Provided is a lithium secondary battery in which a separator is not provided. The lithium secondary battery includes a cathode in which a cathode active material layer is formed on a cathode current collector; an anode in which an anode active material layer is formed on an anode current collector; and an inorganic layer positioned between the cathode and the anode facing each other and containing inorganic particles and a binder. The inorganic layer is in a state in which the inorganic layer is bound to both of the cathode active material layer and the anode active material layer.

Abstract: Provided are embodiments of a method of synthesizing nano scale electrode materials using an ultrafast combustion technique and nano scale electrode materials synthesized using the method. The method does not require a process of annealing reaction products required for synthesis of electrode materials or any other additional processes, such as cleaning, filtering, and drying processes, so that it can take only several seconds to several minutes to obtain a resultant product.

Abstract: Provided are a mixed cathode active material having improved power characteristics and safety, and a lithium secondary battery including the same. More particularly, the present invention relates to a mixed cathode active material which may assist power in a low SOC range to widen an available state of charge (SOC) range and may simultaneously provide improved safety by blending substituted LFP, in which operating voltage is adjusted by substituting a portion of iron (Fe) with other elements such as titanium (Ti), in order to prevent a rapid increase in resistance of manganese (Mn)-rich having high capacity but low operating voltage in a low SOC range (e.g., a SOC range of 10% to 40%), and a lithium secondary battery including the mixed cathode active material.