Abstract: A winding type electrode assembly includes a positive electrode having a positive electrode collector that includes a positive electrode active material portion and a positive electrode non-coating portion; a positive electrode tab provided on the positive electrode non-coating portion; a negative electrode having a negative current collection that includes a negative electrode active material portion and a negative electrode non-coating portion; a negative electrode tab provided on the negative electrode non-coating portion; a protective tape and a separator configured to insulate the positive electrode from the negative electrode. The negative electrode non-coating portion includes a core-side negative electrode non-coating portion disposed at a core when the positive electrode, the negative electrode, and the separator are wound. The negative electrode tab is disposed on one surface of opposite surfaces of the core-side negative electrode non-coating portion.

Abstract: The present application relates to a binder. The present application can provide a binder which can be applied to production of silicon series negative electrodes to cope well with shrinkage and expansion by repeated charge and discharge, and has excellent binding force between active materials and adhesive force to a current collector, and an active material composition, an electrode and a secondary battery, comprising the same.

Abstract: The present disclosure relates to a negative electrode material including, as an active material, silicon flakes with a hyperporous structure, represented by the following chemical formula 1: xSi.(1?x)A??(1) where 0.5?x?1.0, and A is an impurity, and includes at least one compound selected from the group consisting of Al2O3, MgO, SiO2, GeO2, Fe2O3, CaO, TiO2, Na2O K2O, CuO, ZnO, NiO, Zr2O3, Cr2O3 and BaO, and a preparing method of the silicon flakes.

Abstract: A secondary battery using a vanadium oxide as a positive electrode active material is provided. The secondary battery is prevented from degradation of capacity by preventing dissolution of vanadium. The vanadium oxide includes secondary particles formed by assemblage of primary particles.

Abstract: The present application relates to a binder. The present application can provide a binder which can be applied to production of silicon series negative electrodes to cope well with shrinkage and expansion by repeated charge and discharge, and has excellent binding force between active materials and adhesive force to a current collector, and an active material composition, an electrode and a secondary battery, comprising the same.

Abstract: The present disclosure relates to a negative electrode material including, as an active material, silicon flakes with a hyperporous structure, represented by the following chemical formula 1: xSi.(1?x)A??(1) where 0.5?x?1.0, and A is an impurity, and includes at least one compound selected from the group consisting of Al2O3, MgO, SiO2, GeO2, Fe2O3, CaO, TiO2, Na2O K2O, CuO, ZnO, NiO, Zr2O3, Cr2O3 and BaO, and a preparing method of the silicon flakes.

Abstract: A secondary battery using a vanadium oxide as a positive electrode active material is provided. The secondary battery is prevented from degradation of capacity by preventing dissolution of vanadium. The vanadium oxide includes secondary particles formed by assemblage of primary particles.

Abstract: The present disclosure relates to a method for prelithiation, and in particular, to a method for prelithiation that predopes lithium into at least one unit cell uniformly in large amounts. According to an aspect of the present disclosure, there is provided a method for prelithiation including an preparing at least one unit cell, the unit cell comprising a cathode, an anode, and a separator interposed between the cathode and the anode, disposing the prepared at least one unit cell in a reaction tank, and connecting electrodes having the same polarity, adding an electrolyte solution into the reaction tank, disposing a lithium metal plate in the electrolyte solution, and connecting the lithium metal plate to the anode, and doping the anode.

Abstract: The present disclosure provides an anode for a secondary battery, including: an electrode current collector; a first coating layer formed on the electrode current collector and including an anode active material, a first aqueous binder and a conducting material; and a second coating layer formed on the first coating layer and including a second nonaqueous binder. Since the anode of the present disclosure can reduce volume change of the anode active material, a lithium secondary battery including same may have improved cycle characteristics.

Abstract: The present disclosure provides an anode for a secondary battery, including: an electrode current collector; a first coating layer formed on the electrode current collector and including an anode active material, a first nonaqueous binder and a conducting material; and a second coating layer formed on the first coating layer and including a second nonaqueous binder. Since the anode of the present disclosure can reduce volume change of the anode active material, a lithium secondary battery including same may have improved cycle characteristics.

Abstract: The present disclosure relates to an anode active material-containing slurry, an anode using the slurry, and an electrochemical device comprising the anode. More specifically, the present disclosure relates to a slurry comprising an anode active material; a polymer binder comprising styrene butadiene rubber and potassium polyacrylate; a conductive material; and a dispersing medium, an anode using the slurry, and an electrochemical device comprising the anode. The anode active material-containing slurry according to one aspect of the present disclosure can relieve the volume expansion of an anode active material by the intercalation and disintercalation of lithium during cycles of electrochemical devices to improve the durability of an anode active material layer, thereby enhancing the life characteristics of the electrochemical devices, and can form an anode active material layer having a high peeling force even though potassium polyacrylate with a relatively lower weight-average molecular weight is used.

Abstract: The present disclosure relates to a binder solution for an anode, comprising a thermally cross-linkable polymer binder that is cross-linked by heat, and a solvent for dissolving the thermally cross-linkable polymer binder, and exhibiting a concentration of hydrogen ions corresponding to pH 2.5 to pH 4.5; an active material slurry for an anode, comprising the binder solution; an anode using the slurry; and an electrochemical device comprising the anode. The binder solution for an anode according to one aspect of the present disclosure can relieve the volume expansion of an anode active material by the intercalation and disintercalation of lithium during cycles of electrochemical devices to improve the durability of an anode active material layer, thereby enhancing the life characteristics of the electrochemical devices, and also can provide good dispersibility to the active material slurry for an anode, thereby improving the coating stability of an anode active material layer.

Abstract: Provided are an electrode binder for a secondary battery including an amine-based compound expressed by Chemical Formula 1 below and water-based binder particles including at least one carboxyl group as an end group, a method of preparing the same, and an electrode for a secondary battery including the electrode binder for a secondary battery

Abstract: Disclosed herein is a touch sensor using a metal electrode. More specifically, the present invention relates to a touch sensor capable of implementing reliability of the metal electrode and having economical efficiency even under a condition of high temperature and humidity by forming a first protection layer including a heterocycle compound on metal fine lines forming the electrode pattern.

Abstract: The present disclosure provides an anode for a secondary battery, including: an electrode current collector; a first coating layer formed on the electrode current collector and including an anode active material, a first aqueous binder and a conducting material; and a second coating layer formed on the first coating layer and including a second nonaqueous binder. Since the anode of the present disclosure can reduce volume change of the anode active material, a lithium secondary battery including same may have improved cycle characteristics.

Abstract: The present disclosure provides an anode for a secondary battery, including: an electrode current collector; a first coating layer formed on the electrode current collector and including an anode active material, a first nonaqueous binder and a conducting material; and a second coating layer formed on the first coating layer and including a second nonaqueous binder. Since the anode of the present disclosure can reduce volume change of the anode active material, a lithium secondary battery including same may have improved cycle characteristics.

Abstract: The present disclosure relates to a binder solution for an anode, comprising a thermally cross-linkable polymer binder that is cross-linked by heat, and a solvent for dissolving the thermally cross-linkable polymer binder, and exhibiting a concentration of hydrogen ions corresponding to pH 2.5 to pH 4.5; an active material slurry for an anode, comprising the binder solution; an anode using the slurry; and an electrochemical device comprising the anode. The binder solution for an anode according to one aspect of the present disclosure can relieve the volume expansion of an anode active material by the intercalation and disintercalation of lithium during cycles of electrochemical devices to improve the durability of an anode active material layer, thereby enhancing the life characteristics of the electrochemical devices, and also can provide good dispersibility to the active material slurry for an anode, thereby improving the coating stability of an anode active material layer.

Abstract: Disclosed herein is a touch sensor using a metal electrode. More specifically, the present invention relates to a touch sensor capable of implementing reliability of the metal electrode and having economical efficiency even under a condition of high temperature and humidity by forming a first protection layer including a heterocycle compound on metal fine lines forming the electrode pattern.

Abstract: There is provided a touch panel including: a substrate; mesh pattern electrodes formed on the substrate; and hard coating layers formed on the substrate and filling air gaps of the mesh pattern electrode.

Abstract: The present disclosure relates to an anode active material-containing slurry, an anode using the slurry, and an electrochemical device comprising the anode. More specifically, the present disclosure relates to a slurry comprising an anode active material; a polymer binder comprising styrene butadiene rubber and potassium polyacrylate; a conductive material; and a dispersing medium, an anode using the slurry, and an electrochemical device comprising the anode. The anode active material-containing slurry according to one aspect of the present disclosure can relieve the volume expansion of an anode active material by the intercalation and disintercalation of lithium during cycles of electrochemical devices to improve the durability of an anode active material layer, thereby enhancing the life characteristics of the electrochemical devices, and can form an anode active material layer having a high peeling force even though potassium polyacrylate with a relatively lower weight-average molecular weight is used.