Abstract: The present invention relates to an apparatus for strengthening thigh and hip muscles. The apparatus according to the present invention enables a user to perform a movement in which a portion of the body connected to an arm rotates by using hip joint of the user as a pivot axis and simultaneously enables the user to perform a movement of compressing legs by providing the arm having one end connected to the pivot axis wherein the pivot axis is located close to a seat and allows a length of the arm to be extended and then restored according to a rotation angle.

Abstract: Provided is an electrode for an all-solid-state battery, comprising an electrode active material, a solid electrolyte, and a conductive agent, wherein the electrode active material and the solid electrolyte are bonded through the binder, the conductive agent is interposed in pores between the electrode active material and the solid electrolyte, and the conductive agent, the solid electrolyte, and the electrode active material are simultaneously contacted.

Abstract: The present application relates to a lithium secondary battery, including a positive electrode, a silicon-based negative electrode, a separator provided between the positive electrode and the negative electrode, and an electrolyte. The initial efficiency between the positive electrode and the negative electrode and the differences in area, full width, and full length between the positive electrode and the negative electrode can be adjusted to provide cycle improvement in the performance of the lithium secondary battery.

Abstract: The present application relates to a lithium secondary battery including a positive electrode, a silicon-based negative electrode, a separator provided between the positive electrode and the negative electrode, and an electrolyte. The lithium secondary battery according to the present application includes a specific additive in the electrolyte which may serve to capture a Lewis acid produced by a solvent included in the electrolyte and to form a negative electrode film when the lithium secondary battery is driven.

Abstract: The present invention relates to a method of manufacturing an electrode of an all-in-one battery comprising the steps of mixing an electrode active material, a solid electrolyte and a first binder with a first solvent to prepare a primary slurry; drying the primary slurry to prepare a mixture powder; mixing the mixture powder, a conductive agent, and a second binder with a second solvent to prepare a secondary slurry; and coating the secondary slurry on a current collector.

Abstract: Provided is a lithium secondary battery including a non-aqueous electrolyte solution containing a lithium salt, an organic solvent, a first additive represented by Formula 1, and a second additive represented by Formula 2, a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material consists of silicon, and a separator interposed between the positive electrode and the negative electrode: wherein A, R1 and R2 are described herein.

Abstract: Embodiments of the present invention provide an exercise device including a front vertical post is aligned along a virtual horizontal centerline d of the seat; a guiding rail, wherein the guiding rail extends from a top to a bottom in a curved shape; a pivot point on a coronal plane of the guiding rail; a slide arm, wherein the slide arm is slidably connected to the guiding rail and extends horizontally from a left or right side of the guiding rail and configured to slide up and down along the guiding rail, wherein, in a first configuration, a longitudinal axis of the sliding arm is disposed parallel to the ground; and in a second configuration, longitudinal axis of the sliding arm is disposed perpendicularly to the ground.

Abstract: An all-solid-state secondary battery according to the present invention includes a positive electrode, a negative electrode, and a solid electrolyte formed between the positive electrode and the negative electrode, wherein the negative electrode is formed through a pre-lithiation process in which a powder mixture configured to form the negative electrode contacts lithium metal before battery assembly. Irreversible capacity is removed through the pre-lithiation process, whereby initial efficiency of the battery is improved, and the process is simplified, whereby mass production is possible and cost is reduced.

Abstract: A method of applying uniform pressure to an all-solid-state battery during activation of the battery and preventing an interface contact surface from being separated as the result of gas generated in the all-solid-state battery is provided. This method increases the lifespan of the battery and an all-solid-state battery manufactured using the same method.

Abstract: A physical exercise elastic device, where two elastic bodies overlap and adjust the stretching section to regulate tension during exercise, comprising: a first and a second elastic body part arranged apart from each other; a fixing part that connects a portion of the second elastic body part to a portion of the first elastic body part; multiple connecting members positioned at intervals along the longitudinal direction of the first elastic body part and the second elastic body part; a fastening member that connects one of the connecting members from the first elastic body part and one of the connecting members from the second elastic body part.

Abstract: Disclosed is a method of manufacturing a negative electrode for all-solid-state batteries, the method including (a) preparing a powder mixture including a negative electrode active material, a solid electrolyte, and a conductive agent, (b) introducing the powder mixture into a reactor, (c) introducing an electrolytic solution into the reactor, and (d) forming a solid electrolyte interface (SEI) film while rotating the reactor, wherein the inner surface of the reactor is treated with lithium metal.

Abstract: A method of applying uniform pressure to an all-solid-state battery during activation of the battery and preventing an interface contact surface from being separated as the result of gas generated in the all-solid-state battery is provided. This method increases the lifespan of the battery and an all-solid-state battery manufactured using the same method.

Abstract: Provided is a non-aqueous electrolyte including a lithium salt, an organic solvent, a compound represented by Formula 1 as a first additive, and a compound represented by Formula 2 as a second additive: wherein in Formulae 1 and 2, all the variables are described herein.

Abstract: The present invention comprises a y-axis pivot axis which extends in a direction perpendicular to the ground; a resistance body driven by the power output from the y-axis pivot axis; a right arm and a left arm connected to the y-axis pivot axis; wherein when the left arm rotates clockwise, the y-axis pivot axis is driven clockwise, and the right arm idles, and when the right arm rotates clockwise, the y-axis pivot axis is driven clockwise, and the left arm idles, so that a user puts the user's legs on the leg pad and puts one end of the arms together to perform leg adduction and puts the one end of the arms apart to perform leg abduction.

Abstract: A method and device for adjusting an elastic strength of an elastic body that is used in exercise or rehabilitation comprising a first elastic body provided in shape having one end and the other end; a second elastic body provided to be separated from the first elastic body; a first length adjusting device wherein a part of the first elastic body and a part of the second elastic body is provided to overlap each other in a manner that some parts of the first elastic body and the second elastic body pass through the first length adjusting device and fixed; and a second length adjusting device provided to be put on in parallel with the first length adjusting device in the lengthwise direction of the elastic bodies; so that as a result, when a user carries out muscle resistance exercise by using the first elastic body, the ends of the second elastic body move in the air and do not interfere with a resistive force but the overlapped portion of the second elastic body adds a resistive force to the first elastic bod

Abstract: The present invention comprises, a y-axis pivot axis which extends in a direction perpendicular to an extension direction of a x-axis pivot axis, and the x-axis pivot axis and the y-axis pivot axis transmit power to each other; a resistance body driven by the power output from the y-axis pivot axis; wherein a user puts the user's legs on the leg pads and puts one end of the arms together to perform leg adduction and puts the one end of the arms apart to perform leg abduction, wherein, the right arm connected to the x-axis pivot axis moves back to a starting position of an exercise at an end of a exercise where a user puts the user's legs on the leg pad and perform a compressing action by pushing down the leg pad.

Abstract: Disclosed is an all-solid-state battery comprising an electrode assembly and a solid electrolyte, wherein the electrode assembly comprises a structure in which plate-shaped electrodes are stacked; and the electrodes include a relatively high heat-generating first electrode and a relatively low heat-generating second electrode, wherein the first electrode is disposed in a center of the electrode assembly, the all-solid-state battery with improved performance by increasing the temperature of the battery without adding additional members.

Abstract: The present invention relates to an apparatus for strengthening thigh and hip muscles. The apparatus according to the present invention enables a user to perform a movement in which a portion of the body connected to an arm rotates by using hip joint of the user as a pivot axis and simultaneously enables the user to perform a movement of compressing legs by providing the arm having one end connected to the pivot axis wherein the pivot axis is located close to a seat and allows a length of the arm to be extended and then restored according to a rotation angle.

Abstract: The present invention relates to an exercise device comprising, a pivot axis separated into a right axis and a left axis, wherein the right axis and the left axis are connected by using bevel gears, wherein as a ratchet bearing or a free wheel is provided on the y-axis or the arm, the y-axis idles when the y-axis rotates in one direction, and the arm fixed to the y-axis rotates in the same direction as the y-axis when the y-axis rotates in the other direction, so that when the user connects the arm to the y-axis, the user puts the user's legs together to contact one end of the arm and puts the user's legs apart, and when the arm is fixed to a x-axis a user performs a movement of lowering legs.

Abstract: A lithium secondary battery includes a negative electrode, a positive electrode positioned opposite to the negative electrode, a separator disposed between the negative electrode and the positive electrode, and a non-aqueous electrolyte, wherein the negative electrode includes a silicon-based active material, the silicon-based active material comprises a compound represented by SiOx, wherein 0?x<2, the non-aqueous electrolyte includes a lithium salt, an organic solvent, and an additive, the additive includes a first additive and a second additive, the first additive includes a coumarin-based compound represented by Formula 1, and the second additive includes at least one of lithium fluoromalonato(difluoro)borate (LiFMDFB), lithium difluoro(oxalato)borate (LiDFOB), lithium difluorophosphate (LiDFP), or lithium difluorobis-(oxalate)phosphate (LiDFOP): wherein R and n are described herein.