Abstract: There are provided an electrode assembly, and a battery cell, a battery pack, and a device. The electrode assembly includes a combination of two or more types of electrode units having different areas, wherein the electrode units are stacked such that steps are formed, and electrode units are formed such that a positive electrode and a negative electrode face one another at an interface between the electrode units.

Abstract: A method for cell-free protein synthesis is characterized in that pH is controlled by using an enzyme. For example, by using an amino acid decarboxylase, the pH is controlled according to removal of hydrogen ions that are produced during regeneration of ATP. The method for cell-free protein synthesis of the present invention has an advantage that not only the expression amount of protein is enhanced but also the expressed protein can be directly used for activity analysis without undergoing any separation or purification.

Abstract: There is provided a stepped electrode assembly including: a first electrode stack including at least one first unit cell, the first unit cell including at least one positive electrode and at least one negative electrode having the same area and being alternately stacked in a vertical direction with a separator disposed therebetween; and a second unit cell including at least one positive electrode and at least one negative electrode that are alternately stacked in the vertical direction with a separator disposed therebetween, the second unit cell disposed on a side of the first electrode stack with a separator disposed therebetween, wherein the second unit cell includes a first area electrode having the same area as an electrode area of the first electrode stack and a second area electrode having an area different from the area of the first area electrode, wherein the second unit cell is a stepped unit cell including a stepped portion formed by an area difference between the first and second area electrodes.

Abstract: Disclosed is a battery including a cathode in which cathode active-material coating layers provided on both surfaces of a cathode collector are longitudinally deviated from each other, and an anode having at least one anode active-material coating layer provided on an anode collector, the cathode and anode being wound to face each other with a separator interposed therebetween. At least one of a winding beginning portion and winding ending portion of the cathode is provided with a cathode uncoated part for installation of a cathode lead. An insulator tape is attached to the boundary of the cathode active-material coating layer at a position where the anode active-material coating layer faces a non-coating part of the cathode not containing the cathode active-material coating layer, achieving enhanced electrical insulation capability and consequential safety of the battery.

Abstract: Disclosed herein is an electrode assembly including unit cells, each of which is constituted by an electrode plate stack configured to have a structure in which a separator is disposed between electrode plates comprising positive electrodes or negative electrodes, wherein the electrode assembly includes a combination of two or more kinds of unit cells having different sizes, the unit cells are stacked in a height direction on the basis of a plane, two or more of the unit cells located at a lower part of the electrode assembly, i.e. two or more base unit cells, are wound using a single sheet-type separation film to constitute an integrated base structure, and the others of the unit cells excluding the base unit cells, i.e. sub unit cells, are stacked in a state in which a separator is disposed between the respective sub unit cells.

Abstract: Disclosed herein is a battery cell configured to have a structure in which an electrode assembly including a separator disposed between a cathode and an anode is mounted in a battery case, wherein the battery case includes an upper case and a lower case, the upper case and/or the lower case being provided with a receiving part, in which the electrode assembly is mounted, the electrode assembly includes a plurality of electrodes or unit cells stacked in a height direction on the basis of a plane, two or more of the electrodes or the unit cells having different planar sizes, and the receiving part of the battery case is provided with stair-like steps corresponding to an external appearance of the electrode assembly.

Abstract: Disclosed herein is an electrode assembly configured to have a structure in which two or more unit cells are sequentially stacked or a structure in which two or more unit cells are folded using a long sheet type separation film, wherein the unit cells include bi-cells, each of which includes a positive electrode, a negative electrode, and a separator, at least one of the bi-cells includes a safety electrode configured such that an electrode active material is applied only to one major surface of an electrode current collector, the safety electrode includes a first surface, to which no electrode active material is applied, and a second surface, to which the electrode active material is applied, and the at least one of the bi-cells including the safety electrode is configured such that a safety separator, having a thickness equivalent to 110% to 220% of a thickness of a separator disposed between a positive electrode and a negative electrode or between a negative electrode and a positive electrode excluding the

Abstract: Disclosed herein is a battery case including a receiving part having an electrode assembly mounted therein, wherein the receiving part, which is formed by deforming a sheet type base material, is configured to have a stair-like structure in which at least one corner and/or surface forming a shape of the receiving part is deformed.

Abstract: There is provided a stacked and folded type electrode assembly in which at least two first electrode units having a first area and at least two second electrode units having a second area smaller than the first area are wound and stacked together with a rectangular separator. The electrode assembly includes: a first electrode stack in which the first electrode units are stacked; a second electrode stack in which the second electrode units are stacked; and a stepped portion formed by an area difference between the first electrode stack and the second electrode stack, wherein two or more layers of the separator cover the stepped portion, and the separator has the same shape as the stepped portion.

Abstract: Disclosed herein is an electrode assembly configured to have a structure in which two or more unit cells are sequentially stacked or a structure in which two or more unit cells are folded using a long sheet type separation film, wherein the unit cells include bi-cells, each of which includes a positive electrode, a negative electrode, and a separator, at least one of the bi-cells includes a safety electrode configured such that an electrode active material is applied only to one major surface of an electrode current collector, the safety electrode includes a first surface, to which no electrode active material is applied, and a second surface, to which the electrode active material is applied, and the at least one of the bi-cells including the safety electrode is configured such that a safety separator, having a thickness equivalent to 110% to 220% of a thickness of a separator disposed between a positive electrode and a negative electrode or between a negative electrode and a positive electrode excluding the

Abstract: An electric device has a curved structure formed at at least one position of an outside thereof. At least one secondary battery having an external appearance corresponding to a shape of the curved structure is mounted at the position of the electric device at which the curved structure is formed. The secondary battery is a battery cell having an electrode assembly including a cathode, an anode, and a separator disposed between the cathode and the anode mounted in a battery case or a battery pack having the battery cell mounted in a pack case.

Abstract: Disclosed herein is a stacked/folded type electrode assembly configured to have a structure in which two or more unit cells, each of which includes a separator disposed between a positive electrode and a negative electrode, each having an electrode mixture including an electrode active material applied to a current collector, are wound using a sheet type separation film, wherein the positive electrode is configured to have a structure in which a positive electrode mixture is coated on an aluminum foil as the current collector and the negative electrode is configured to have a structure in which a negative electrode mixture is coated on a metal foil, other than the aluminum foil, as the current collector, the unit cells include one or more full-cells and/or bi-cells, one of the unit cells located at each outermost side of the electrode assembly is configured such that one outermost electrode of the unit cell is a single-sided electrode, the single-sided electrode being configured such that the electrode mixtur

Abstract: Disclosed herein is a battery cell configured such that an electrode assembly, including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, is mounted in a receiving part formed in a battery case, a positive electrode terminal and a negative electrode terminal protrude from at least one side of the electrode assembly, and an insulative material is provided between the electrode assembly and the battery case.

Abstract: Disclosed herein are an electrode stack including at least one positive electrode, at least one negative electrode, and at least one separator, wherein the separator is laminated to one surface or opposite surfaces of at least one of the electrodes, the positive electrode, the negative electrode, and the separator are stacked such that the separator is disposed between the positive electrode and the negative electrode, and a stacked surface of each of the positive electrode, the negative electrode, and the separator includes a curved surface, and a battery cell including the same.

Abstract: Disclosed herein is a mandrel configured to be used in a winding process for manufacturing a jelly roll type electrode assembly using a long sheet type stack of a cathode/separator/anode structure, wherein the mandrel is oval in a section perpendicular to a rotational central axis of the mandrel and is divided into a first mandrel part located at one side of a central region of the mandrel, in which an end of the sheet type stack is fixedly fitted, and a second mandrel part located at the other side of the central region of the mandrel, and the first mandrel part and the second mandrel part each include a main body part having a region in which the sheet type stack is fitted in an engaged state and an exchange part, detachably mounted to the main body part, having an end of a major axis of the mandrel.