Abstract: A secondary battery includes: an electrode assembly including: a first electrode plate; a second electrode plate; and a separator between the first electrode plate and the second electrode plate; a case configured to accommodate the electrode assembly; a cap assembly electrically connected to the second electrode plate of the electrode assembly; and an insulator coupled to an upper side of the electrode assembly, wherein the insulator includes: an insulating upper portion configured to cover the upper side of the electrode assembly; an insulating side portion between the case and a side portion of the electrode assembly; and an insulating core portion inserted into a hollow portion of the electrode assembly to support the electrode assembly.

Abstract: A muscular strength assisting apparatus includes a muscular strength assisting portion that assists a user's muscular strength and a first connecting link including one side connected to one side of the muscular strength assisting portion and an opposite side rotatable relative to a shoulder of the user about a first rotation axis. The muscular strength assisting portion includes an upper arm module that assists muscular strength of an upper arm of the user and a link assembly including one side connected to one side of the upper arm module to be rotatable about a second rotation axis non-parallel to the first rotation axis and an opposite side disposed adjacent to a portion of a body of the user to be supported on the user.

Abstract: A roll control thruster controls the attitude of a launch vehicle by using the oxidizer filled in an oxidizer tank, and includes: a thruster tank that is charged using a portion of the oxidizer stored in the oxidizer tank; a thruster line that is branched from the thruster tank and forms a supply path of the oxidizer stored in the thruster tank; a thruster valve that is provided in the thruster line and opens and closes the thruster line or adjusts the opening degree of the thruster line; a thruster module that is connected to the thruster line and injects the oxidizer, supplied via the thruster line, in order to control the attitude of the launch vehicle; and a thruster control module that controls the operation of the thruster valve and the supply of oxidizer to the thruster module.

Abstract: A separator for an electrochemical device, including: a porous polymer substrate having a first surface and a second surface opposite the first surface; a first organic/inorganic composite porous layer on the first surface of the porous polymer substrate where the first organic/inorganic composite porous layer includes first inorganic particles and a first binder polymer; and a second organic/inorganic composite porous layer on the second surface of the porous polymer substrate where the second organic/inorganic composite porous layer includes the first inorganic particles, second inorganic particles and a second binder polymer. The first inorganic particles have an average particle diameter of 1 nm to 100 nm, and the second inorganic particles have an average particle diameter larger than the average particle diameter of the first inorganic particles. The separator shows improved high-temperature safety and assembling processability.

Abstract: A jelly-roll type electrode assembly according to an embodiment of the present disclosure comprises a wound sheet-like laminate including an electrode and a separator. The separator includes a double-sided coating layer. The coating layer includes a mixture of a first alumina and a second alumina. The second alumina is contained in an amount of 16 to 40 parts by weight, based on 100 total parts by weight of the mixture. A particle diameter of the first alumina is smaller than a particle diameter of the second alumina.

Abstract: The present invention relates to a reusable nail tip, and more particularly, to a nail tip that can be easily attached to a nail, used for a predetermined period of time, removed and reused again. The nail tip of the present invention adopts a TPU material with desirable elasticity to thus attain convenience of use and excellent retention, and uses an adhesive composition that includes various antibacterial and moisture components, thereby minimizing side effects and nail damage.

Abstract: Proposed is a device for switching an optical signal, the device including a first waveguide constituting an input port and a first output port; and a second waveguide constituting a second output port, wherein the first waveguide is formed of a first material, wherein the second waveguide is formed of the first material and contains a second material, wherein a gap between the first and second waveguides has a first value in a first section, a gap therebetween has a value increasing from the first value to a second value in a second section, and a gap therebetween has a third value in a third section, wherein at least one portion of the first section and at least one portion of the second section overlap in the one section, and wherein a grating structure applies to the first and second waveguides in at least one portion of the first section.

Abstract: Provided is a security code. The security code including a first region and a second region includes a metal layer, a first dielectric pattern provided on the metal layer in the first region, a polymer pattern provided on the metal layer in the second region, a first metal pattern provided on the dielectric pattern, and a second metal pattern provided on the polymer pattern, wherein the polymer pattern includes a material different from that of the first dielectric pattern, and a thickness of the polymer pattern is different from a thickness of the first dielectric pattern.

Abstract: A unit cell including a thermochromic polymer and a defect detection method using the same are disclosed. Preferably, the unit cell includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode, wherein the separator includes a thermochromic polymer configured such that the color of the thermochromic polymer changes depending on temperature, whereby the unit cell is easily checked to indicate a short circuit, as well as damage to or defects of the separator.

Abstract: An electrode assembly and a secondary battery including the same are provided. The electrode assembly includes an electrode stack, in which electrodes and a separator are alternately stacked to be wound, and a temperature difference compensating member disposed at a winding center of the electrode stack such that a temperature difference between a winding outer shell and a winding center of the electrode stack is reduced. The temperature difference compensating member includes a phase change material.

Abstract: A swelling tape including a base layer and an adhesive swelling is provided. The adhesive swelling layer contains a water-based self-healing binder. An electrode assembly in which the swelling tape is attached to an outer circumferential surface thereof, and a secondary battery including the electrode assembly are also provided.

Abstract: A secondary battery according to one embodiment of the present disclosure includes: a jelly-roll type electrode assembly; a top insulator located at the top of the electrode assembly; and a bottom insulator located at the bottom of the electrode assembly, wherein at least one of the top insulator and the bottom insulator includes a temperature-sensitive polymer that swells in accordance with a temperature rise.

Abstract: A binder composition for a lithium secondary battery and a lithium secondary battery including the binder, the binder composition including a copolymer that includes a first structure unit including amide, a second structural unit including carboxylic acid or a salt thereof, and a third structural unit including a morpholine ring or a thiomorpholine ring.

Abstract: In a lens assembly structure comprising a plurality of lens assemblies, according to the present invention, at least one part of assemblies among the plurality of lens assemblies comprises: a first lens group having a positive refractive power or a negative refractive power; a second lens group having a positive refractive power; and a bending structure for bending an optical path of the first lens group such that the optical path corresponds to an optical axis direction of the second lens group, wherein the bending structure is disposed on the optical path of the first lens group and an optical path of the second lens group, optical axes of the first lens groups disposed in each of the at least one part of lens assemblies meet at one point, and optical axes of the second lens groups disposed in each of the at least one part of lens assemblies may form a triangle.

Abstract: An electronic device according to various embodiments of the present disclosure can include at least one heat component, a camera module comprising a camera disposed near the at least one heat component, and a support comprising a first opening in which the camera module is inserted and disposed with a gap along at least a portion of a periphery of the camera module.

Abstract: In a lens assembly structure comprising a plurality of lens assemblies, according to the present invention, at least one part of assemblies among the plurality of lens assemblies comprises: a first lens group having a positive refractive power or a negative refractive power; a second lens group having a positive refractive power; and a bending structure for bending an optical path of the first lens group such that the optical path corresponds to an optical axis direction of the second lens group, wherein the bending structure is disposed on the optical path of the first lens group and an optical path of the second lens group, optical axes of the first lens groups disposed in each of the at least one part of lens assemblies meet at one point, and optical axes of the second lens groups disposed in each of the at least one part of lens assemblies may form a triangle.

Abstract: A binder composition for a lithium secondary battery and a lithium secondary battery including the binder, the binder composition including a copolymer that includes a first structure unit including amide, a second structural unit including carboxylic acid or a salt thereof, and a third structural unit including a morpholine ring or a thiomorpholine ring.

Abstract: An application design server, method and system are provided. The application design server according to an exemplary embodiment includes a communicator configured to receive design data from a first host device and a controller configured to, in response to receiving a request for the design data from a second host device, transmit the received design data to the second host device, and in response to receiving updated design data corresponding to the design data from the first host device, control the communicator to transmit the updated design data to the second host device.

Abstract: A metamaterial structure may include a first nanoparticle and a second nanoparticle containing a different material from the first nanoparticle. The first and second nanoparticles may be provided to be adjacent to each other and to be in an electrically-coupled state.

Abstract: An electronic device according to various embodiments of the present disclosure can include at least one heat component, a camera module comprising a camera disposed near the at least one heat component, and a support comprising a first opening in which the camera module is inserted and disposed with a gap along at least a portion of a periphery of the camera module.