Hyundai Motor Company

Kia Motors Corporation

Em-Tech Co., Ltd.

Industry-University Cooperation Foundation Hanyang University

Ulsan National Institute of Science and Technology

Kia Corporation

Seoul National University

Unist (Ulsan Nat. Inst. of Science and Technology)

Sung Hoo Jung

Dae Yang Oh

Yoon Seok Jung

Yong Sub Yoon

Young Jin Nam

Hong Seok Min

Kyung Su Kim

Oh Min Kwon

Sang Mo Kim

Cheon Myeong Kim

Seul Ki Nam

Sang Heon Lee

Jae Min Lim

Jin Soo Kim

Tae Young Kwon

Ju Yeon Lee

Sung Jin Hong

Ji Eun Lee

Ji Hoon Kim

Kyu Tae Kim

Jang Wook Choi

Gyung Bo Ha

Disclosed are a binder solution for an all-solid-state battery including a binder in the form of particles, and a method of manufacturing the same. The binder solution may include a rubber-based binder, a first solvent for dissolving the rubber-based binder, and a second solvent in which the rubber-based binder is insoluble and which is miscible with the first solvent.

Binder solution for all-solid-state battery including binder in form of particles and method of manufacturing same

A composite binder composition for an all-solid-state battery includes: a first polymer comprising a repeating structure represented by Chemical Formula 1a or Chemical Formula 1b below, and a second polymer comprising at least one selected from a group consisting of diene-based rubber, polysiloxane, and combinations thereof:

Composite binder composition for all-solid-state battery, electrode slurry comprising same, and method of manufacturing electrode for all-solid-state battery using electrode slurry

The present disclosure relates to a binder solution for all-solid-state batteries. The binder solution includes a polymer binder, a first solvent, and an ion-conductive additive, wherein the ion-conductive additive includes lithium salt and a second solvent, which is different from the first solvent.

Binder solution for all-solid-state batteries, electrode slurry including the binder solution, and method of manufacturing all-solid-state battery using the electrode slurry

A hybrid actuator includes a housing for defining an external appearance, a stator having a coil, a vibrator having a permanent magnet which vibrates due to a mutual electromagnetic force with the stator, an elastic member for elastically supporting the vibrator relative to the housing, and a piezoelectric element attached to one surface of the housing.

Hybrid actuator and multimedia apparatus having the same

An improved, low porosity, solid electrolyte membrane and a method of manufacturing the solid electrolyte membrane are provided. The low porosity, solid electrolyte membrane significantly improves both mechanical strength and porosity of the membrane, inhibits the growth of lithium dendrites (Li dendrites), and thereby maintains and maximizes electrochemical stability of an all-solid-state battery. This is accomplished by wet-coating a sulfide or oxide solid electrolyte particle with a thermoplastic resin, or a mixture of the thermoplastic resin and a thermosetting resin, using a solvent to prepare a composite and hot-pressing the composite at a relatively low temperature and at a low pressure.

Low porosity solid electrolyte membrane and method for manufacturing the same

A waterproof speaker having a waterproof rating of 8 or more and that is capable of providing a waterproof function at a high water pressure is provided. The waterproof microspeaker includes: a frame comprising a sidewall and a flange portion extending outward from an upper edge of the sidewall; a vibrating portion within the frame; a diaphragm mounted on the flange portion of the frame; and a waterproof ring placed on a sidewall of the frame and configured to protrude further outward than the flange portion of the frame.

High-water pressure waterproof microspeaker

Disclosed are a positive electrode active material capable of suppressing a reaction between a core and a solid electrolyte, a method of manufacturing the same and an all-solid battery including the same. Provided is a positive electrode active material for all-solid batteries including a core comprising a lithium-containing metal oxide, and a coating layer comprising LiI applied to the surface of the core.

Positive electrode active material, method of manufacturing the same and all-solid battery including the same

A sound converter includes a rectangular frame, a first suspension seated on an upper side of the frame to vibrate, a second suspension attached to a bottom surface of the first suspension and electrically connected to a voice coil to vibrate, a magnetic circuit including a center magnet, a plurality of sub-magnets spaced apart from the center magnet by a certain distance to define a magnetic gap, a plurality of top plates positioned above the center magnet and each sub-magnet, and a bottom plate positioned below the center magnet and each sub-magnet, and a third suspension connecting a lower end or a lower end lateral surface of the voice coil to the frame to vibrate. The voice coil is attached to a bottom surface of the second suspension. The third suspension is positioned through spaces defined by the sub-magnets being spaced apart from each other.

Sound converter

The present invention relates to a high power microspeaker having a separate sub-diaphragm on a top end surface of a coil, in addition to a diaphragm and a suspension. The present invention provides a structure in which an acoustic system including a main diaphragm and a conductive suspension of a microspeaker is attached to a top end surface of a coil and a separate sub-diaphragm is attached to the same surface of the coil.

High power microspeaker with sub-diaphragm

Growing community of inventors

Changwon-si, South Korea

Sung Hoo Jung