Samsung Sdi Co., Inc.

Samsung Electronics Co., Ltd.

Sungkyunkwan University

Eugene Technology Co., Ltd.

Celltrion Chemical Research Institute

Celltrion Pharm, Inc.

Kyoung Soo Kim

Yongchan You

Yunhee Kim

Erang Cho

Seonju Choi

Won Young Kim

Sun Won Kang

Hyoyoung Lee

Young Jun Park

Nam Goo Cha

Dohyung Park

Yong Ki Kim

Sung Tae Je

Yong Min Kwon

Jae Woo Kim

Chang Dol Kim

Yang Sik Shin

Byoung Gyu Song

Jun Jin Hyon

Taejeong Kim

Yong Hun Shin

Daesun Hyun

Jintaek Park

Hyun-Nam Song

In Suk Lee

Sun-Joo Choi

Joon Woo Kim

The present invention relates to a lithium secondary battery comprising: a negative electrode comprising a negative electrode active material containing Si or Sn, a positive electrode comprising a positive electrode active material, and a non-aqueous electrolyte. The non-aqueous electrolyte comprises: a non-aqueous organic solvent; a lithium salt; fluoroethylene carbonate; a first additive containing at least one compound among compounds resented by chemical formulas 1 to 4; and a second additive containing at least one compound among compounds represented by chemical formula 5 or 6.

Lithium secondary battery including fluoroethylene carbonate in electrolyte

The present invention relates to a non-aqueous electrolyte for a lithium secondary battery and a lithium secondary battery comprising same. The non-aqueous electrolyte comprises: a non-aqueous organic solvent; a lithium salt; a first additive containing at least one compound among compounds represented by chemical formulas 1 to 4; and a second additive containing at least one compound among compounds represented by chemical formula 5 or 6.

Non-aqueous electrolyte for lithium secondary battery and lithium secondary battery comprising same

The present invention relates to a non-aqueous electrolyte for a lithium secondary battery and a lithium secondary battery comprising the same, the non-aqueous electrolyte comprising a non-aqueous organic solvent, a lithium salt, a first additive including at least one of compounds represented by chemical formulas 1 to 4, and a second additive comprising a cyclic sulfide-based compound, wherein the mixing ratio of the first additive and the second additive is a weight ratio of 0.2:1 to 10:1.

A rechargeable lithium battery including a negative electrode; a positive electrode including a positive active material; and a non-aqueous electrolyte, wherein the non-aqueous electrolyte includes a non-aqueous organic solvent, a lithium salt, a first additive including a compound represented by one of Chemical Formulae 1 to 4 and a second additive including a compound represented by Chemical Formula 5 or Chemical Formula 6, or a combination thereof, the positive active material includes a compound that includes about 70 mol % or greater of Ni based on the total mole number of all metal elements except for Li, 

Rechargeable lithium battery

A semiconductor memory chip includes an upper data pad region, a lower data pad region, and an additional pad region. Upper data pads, upper data strobe signal pair pads, and an upper data mask signal pad are arranged in the upper data pad region. Lower data pads, lower data strobe signal pair pads, and a lower data mask signal pad are arranged in the lower data pad region adjacent to and below the upper data pad region. An inverted termination data strobe signal pad used for a second semiconductor memory package and internally connected to the upper data mask signal pad, which is used for a first semiconductor memory package, is arranged in the additional pad region adjacent to and above the upper data pad region.

Semiconductor memory chip, semiconductor memory package, and electronic system using the same

The present invention may include: a tube providing an interior space in which substrates are processed; a substrate support portion stacking a plurality of substrates in the interior space of the tube in multi-level; a gas supply portion supplying a process gas to the plurality of substrates; an exhaust portion disposed to face the gas supply portion to absorb the process gas; and a flowage adjustment portion having spray openings formed along a circumference of the tube between the gas supply portion and the exhaust portion to spray an adjusting gas, and may be capable of controlling the amount of process gas supplied to an upper surface of the substrate by adjusting the flowage of process gas.

Substrate processing apparatus

The present disclosure relates to graphene quantum dot and a method for preparing the graphene quantum dot.

Graphene quantum dot and preparing method of the same

A method of manufacturing a light emitting diode (LED) package may include forming a light emitting structure having a first conductivity-type semiconductor layer, an active layer and a second conductivity-type semiconductor layer on a growth substrate, forming first and second electrodes connected to the first and second conductivity-type semiconductor layers, respectively, bonding a first surface of a light transmissive substrate opposite to a second surface thereof to the light emitting structure, identifying positions of the first and second electrodes that are seen through the second surface of the light transmissive substrate, forming one or more through holes in the light transmissive substrate to correspond to the first and second electrodes, and forming first and second via electrodes by filling the through holes with a conductive material.

Method of manufacturing light emitting diode package

The present invention relates to piperazine dithioctate, a novel addition salt of thioctic acid with a base and a pharmaceutical composition comprising the same. The piperazine dithioctate according to the present invention has good thermal and moisture stability and high water-solubility as well as dosage increase lower than other addition salts, thereby being effectively used for preparing a pharmaceutical composition for antioxidation or for preventing or treating diabetic polyneuropathy, etc.

Piperazine dithioctate and pharmaceutical composition comprising the same

Growing community of inventors

Yongin-si, South Korea

Kyoung Soo Kim