Cheil Industries Inc.

Samsung Sdi Co., Inc.

Lumens Co., Ltd.

Samdung Sdi Co., Ltd.

Young-Jun Lee

Young-Min Kim

Duck-Chul Hwang

Sang-Min Lee

Chang Min Hong

Young-Hwan Kim

Tae-Uk Kim

Taewoo Kim

Young-Ugk Kim

Goo-Jin Jeong

Chang-Min Hong

Sang-Eun Park

Young Sil Lee

Tai-Hyun Kim

Jong-il Kim

Jeongsoon Shin

Young-Chul Kwon

Young Sik Ryu

Hyun-Pyo Hong

Jun-Hyung Lim

Tae-Kwan Lee

Jong-Cheol Lim

Jin-Kyung Cho

Hyung-Tak Lee

Chang-Do Jung

Bum Seok Youn

Jinsub Park

Young-Mi Chung

Seongbong Cho

Seung-Ho Na

Ji-Won Pack

Bum-Seok Youn

Lee Kun Cho

Tae-Geun Kim

Ung-Kuk Heo

Deuk-Hwa Lee

Chan-Gyun Shin

Sung-Hun Kim

Hyosung Lee

A rechargeable battery having increased capacity while facilitating a manufacturing process is provided. A rechargeable battery includes: an electrode assembly including at least a unit body including a first region and a second region that are divided based on a folding center in which separators including at least two facing sheets are folded, and electrode plates of a first electrode and electrode plates of a second electrode, and the electrode plates of the first electrode and the electrode plates of the second electrode are alternately stacked with the separators therebetween in each of the first region and the second region; and a case receiving the electrode assembly and an electrolyte solution.

Rechargeable battery

Disclosed herein is a lighting apparatus capable of uniformly maintaining power consumed by light emitting units even in the case in which various voltages are applied, and increasing power efficiency while minimizing a heating problem by adjusting a reference voltage applied to a connection structure of the light emitting units and a distribution switch according to magnitude of the applied voltage.

Lighting apparatus

A silicon-based negative active material that includes a core including silicon oxide represented by SiO(0&#x3c;x&#x3c;2); and a coating layer including metal oxide, and the metal of the metal oxide includes aluminum (Al), titanium (Ti), cobalt (Co), magnesium (Mg), calcium (Ca), potassium (K), sodium (Na), boron (B), strontium (Sr), barium (Ba), manganese (Mn), nickel (Ni), vanadium (V), iron (Fe), copper (Cu), phosphorus (P), scandium (Sc), zirconium (Zr), niobium (Nb), chromium (Cr), and/or molybdenum (Mo), the core has a concentration gradient where an atom % concentration of a silicon (Si) element decreases to the center of the core, and an atom % concentration of an oxygen (O) element increases to the center, and a depth from the surface contacting the coating layer where a concentration of the silicon (Si) element is about 55 atom % corresponds to about 2% to about 20% of a diameter of the core.

Silicon-based negative active material, preparing method of preparing same and rechargeable lithium battery including same

Disclosed are a negative active material for a rechargeable lithium battery that includes a core including silicon oxide represented by the following Chemical Formula 1; and a surface-treatment layer surrounding the core and including metal oxide represented by the following Chemical Formula 2, a method of preparing the negative active material, and a rechargeable lithium battery including the negative active material. The metal of the metal oxide is included in an amount of about 0.1 wt % to about 20 wt % based on the total weight of the negative active material for a rechargeable lithium battery.SiOx&#x2003;&#x2003;[Chemical Formula 1]MyOz&#x2003;&#x2003;[Chemical Formula 2] In the above Chemical Formula 1 and 2, M, x, y, and z are the same as defined in the specification.

Negative active material for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same

Disclosed are a branched polycarbonate resin composition that includes: (A) a polycarbonate resin; (B) a polymer including a reactive group being capable of reacting with a hydroxyl group; and (C) an ionic compound including an alkali metal ion, organic cation, or a combination thereof, and a branched polycarbonate resin and a molded product using the same.

Branched polycarbonate resin composition, and branched polycarbonate resin and molded product made using the same

An environmentally-friendly polylactic acid resin composition includes (A) a mixed resin including (a1) a polylactic acid (PLA) resin and (a2) a polycarbonate resin, and (B) a compatibilizer capable of forming a stereo-complex with the polylactic acid resin. According to the present invention, the polylactic acid resin composition is environmentally-friendly and has excellent appearance and improved welding impact strength, as well as improved mechanical strength and heat resistance. Accordingly, it can be used for manufacturing various molded products requiring heat resistance and mechanical strength, for example electronic parts, office machines, miscellaneous goods, and the like.

Environmentally-friendly polylactic acid resin composition

The present invention relates to a fiber reinforced nylon composition, wherein the composition includes (A) 25 to 75 parts by weight of a polyarylamide resin, (B) 25 to 75 parts by weight of a reinforcing fiber having a cross-sectional aspect ratio of 1.5 or more, and (C) an impact modifier, and the impact modifier is included in an amount of 1 to 10 parts by weight based on 100 parts by weight of a mixture of the polyarylamide resin and the reinforced fiber. According to the present invention, the fiber reinforced nylonresin composition may exhibit minimal or no warpage, can have excellent fluidity and impact resistance, and can provide high whiteness and a glossy-coating due to minimal or no surface change after dipping in boiling water.

Fiber reinforced nylon composition

Growing community of inventors

Yongin-si, South Korea

Young-Jun Lee