Abstract: Methods for manufacturing a solid electrolyte membrane are provided, which allow visual determination of how much a porous sheet is filled with a solid electrolyte material, and thus can optimize selection of materials and manufacturing processes of a solid electrolyte membrane in a simple manner. The resulting solid electrolyte membrane can reduce the manufacturing cost and allow easy deformation, and thus can be processed with ease when it is applied to batteries having various shapes. Further, since the solid electrolyte membrane according to the present disclosure includes a composite of a porous polymer material, such as a nonwoven web, with a solid electrolyte material, it has excellent strength and allows formation of a thin film, and thus provides a battery with improved energy density advantageously.

Abstract: The present disclosure provides an electrode for a secondary battery, characterized in that a carbon nanotube sheet is provided on one surface or both surfaces of a current collector, and an electrode mixture layer containing an electrode active material is applied on the carbon nanotube sheet.

Abstract: A method for manufacturing an electrode for a solid state battery and an electrode obtained thereby. In the electrode, the electrode active material particles are at least partially surface-coated with a first coating layer including a mixture of (a) a binder, a first polymer electrolyte or both a binder and a first polymer electrolyte, and (b) a conductive material. In addition, the first coating layer in the electrode is formed by an electrospraying and/or electrospinning process.

Abstract: Disclosed is a pouch-type secondary battery, which includes an electrode assembly having a positive electrode plate and a negative electrode plate disposed to face each other and a pouch case having a concave groove formed to accommodate the electrode assembly, wherein the pouch case includes a first pouch film and a second pouch film thermally fused to the first pouch film, and wherein a concave groove is formed in at least one of the first pouch film and the second pouch film, and the concave groove has a bottom surface on which the electrode assembly is placed so that the bottom surface has an area equal to or greater than an area of a reference surface that covers an opening of the concave groove.

Abstract: The present invention provides an electrode assembly, including two or more positive electrode plates and two or more negative electrode plates laminated with each of separators interposed therebetween, wherein both side end portions of the electrode assembly are bent together in the same direction by a curvature radius (R) satisfying the following Equation 1: S[{1/ln(x/y)}*t]=R??1 wherein t is an average thickness (mm) of the laminated electrode assembly, x is a horizontal length of the electrode assembly, and y is a vertical length of the electrode assembly, and S is a constant of 10 or more, and ln(x/y)?1.

Abstract: The present disclosure relates to a method for manufacturing an electrode including a polymer electrolyte and an electrode obtained thereby. Particularly, the present disclosure relates to an electrode for a wide voltage battery which has improved reactivity on the surface of the electrode active material. The electrode provides an increased reactive site between an electrode active material and a polymer electrolyte and an improved ratio of the amount of active material in the electrode, and thus can provide a battery with improved energy density.

Abstract: An electrode for an all solid-state battery including an electrode current collector, and an electrode active material layer formed on at least one surface of the electrode current collector, wherein the electrode active material layer includes electrode active material particles, a solid electrolyte coated on at least part of surface of the electrode active material particles to connect the electrode active material particles to each other, and a linear structure distributed between the electrode active material particles.

Abstract: A method for manufacturing an electrode for a solid state battery and an electrode obtained thereby. In the electrode, the electrode active material particles are at least partially surface-coated with a first coating layer including a mixture of (a) a binder, a first polymer electrolyte or both a binder and a first polymer electrolyte, and (b) a conductive material. In addition, the first coating layer in the electrode is formed by an electrospraying and/or electrospinning process.

Abstract: The present disclosure relates to a method for manufacturing an electrode including a polymer electrolyte and an electrode obtained thereby. Particularly, the present disclosure relates to an electrode for a wide voltage battery which has improved reactivity on the surface of the electrode active material. The electrode provides an increased reactive site between an electrode active material and a polymer electrolyte and an improved ratio of the amount of active material in the electrode, and thus can provide a battery with improved energy density.

Abstract: Disclosed is a pouch-type secondary battery, which includes an electrode assembly having a positive electrode plate and a negative electrode plate disposed to face each other and a pouch case having a concave groove formed to accommodate the electrode assembly, wherein the pouch case includes a first pouch film and a second pouch film thermally fused to the first pouch film, and wherein a concave groove is formed in at least one of the first pouch film and the second pouch film, and the concave groove has a bottom surface on which the electrode assembly is placed so that the bottom surface has an area equal to or greater than an area of a reference surface that covers an opening of the concave groove.

Abstract: The present disclosure provides an electrode for a secondary battery, characterized in that a carbon nanotube sheet is provided on one surface or both surfaces of a current collector, and an electrode mixture layer containing an electrode active material is applied on the carbon nanotube sheet.

Abstract: The present disclosure provides an electrode for a secondary battery in which two or more unit electrodes are laminated in a state of being in close contact with each other, and mutually adjacent unit electrodes are electrically connected through an electrode mixture, wherein in each of the unit electrodes, the electrode mixture containing an electrode active material is introduced into pores of a unit current collector with a three-dimensional network structure.

Abstract: The present invention provides an electrode assembly, including two or more positive electrode plates and two or more negative electrode plates laminated with each of separators interposed therebetween, wherein both side end portions of the electrode assembly are bent together in the same direction by a curvature radius (R) satisfying the following Equation 1: S[{1/ln(x/y)}*t]=R??1 wherein t is an average thickness (mm) of the laminated electrode assembly, x is a horizontal length of the electrode assembly, and y is a vertical length of the electrode assembly, and S is a constant of 10 or more, and ln(x/y)?1.