Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Sungkyunkwan University

Jaeman Choi

Hyeonjin Shin

Moonseok Kwon

Junhwan Ku

Jaejun Chang

Jonghwan Park

Inhyuk Son

Euncheol Do

Minsang Song

Seungsik Hwang

Jeongkuk Shon

Yeonji Chung

Sangmin Ji

Yeonil Lee

Xiangshu Li

Kuntae Kwon

Dongjin Ham

Hyunjae Song

Hana Kim

Byungmin Lee

Myungkook Park

Kwangjin Park

Jaegu Yoon

Bookeun Oh

Changryong Heo

Chihyun Cho

Jaeyoung Choi

Jaeyeon Lee

Hansu Kim

Jaemyung Lee

Seonmi Yoon

Sungun Wi

Inyong Song

Yoonhoi Lee

Jiman Kim

Seongyong Park

Jong Hyeok Park

Kiyoun Jang

Younhee Lim

Sunjin Kim

Junhyuk Moon

Sukhyun Lee

Seokgwang Doo

Inyoung Song

Gwiok Park

Zhang Kan

Geewoo Jang

Yongsub Jeon

An electronic device including a battery is provided. The battery disposed inside the electronic device includes a battery cell including a plurality of cell areas arranged at intervals therebetween and one or more folding areas that foldably connect a pair of neighboring cell areas, and a protection circuit portion extending from the battery cell and electrically connected to a printed circuit board (PCB) of the electronic device. The battery cell includes a plurality of substrate members stacked while being insulated through a separation membrane and a mixture layer applied to a surface of each of the substrate member, in which the substrate member are arranged without an overlapping area therebetween in a folding area.

Electronic device including battery

A composite including: at least one selected from a silicon oxide of the formula SiOand a silicon oxide of the formula SiOwherein 0<x<2; and graphene, wherein the silicon oxide is disposed in a graphene matrix.

Composite, electrochemical active material composite using the composite, electrode including the composite or electrochemical active material composite, lithium battery including the electrode, field emission device including the composite, biosensor including the composite, semiconductor device including the composite, and thermoelectric device including the composite

A composite including: at least one selected from a silicon oxide of the formula SiOand a silicon oxide of the formula SiOwherein 0&#x3c;x&#x3c;2; and graphene, wherein the silicon oxide is disposed in a graphene matrix.

A battery and an electronic device including a battery are provided. The battery includes a case including a first face and a second face; a first unit cell including a first cathode, a first separator, and a first anode, the first anode having a characteristic of a first electrical conductivity when the first unit cell is discharged; and a plurality of second unit cells, each including a second cathode, a second separator, and a second anode, the second anode having a characteristic of a second electrical conductivity lower than the first electrical conductivity when the plurality of second unit cells are discharged. The plurality of second unit cells are disposed within the case to be adjacent to the first face and the second face, respectively, and the first unit cell is interposed between the plurality of second unit cells.

Battery including multiple unit cells having different characteristics in electronic conductivity of anode and electronic device including same

A complex electrode assembly includes a first sheet-type wiring which extends in a lengthwise direction of the first sheet-type wiring and comprises a sheet region of which a width that is perpendicular to the lengthwise direction is greater than a thickness that is perpendicular to the lengthwise direction and a width direction of the first sheet-type wiring, and electrode assemblies which are arranged separate from each other in the lengthwise direction of the first sheet-type wiring and are electrically connected to the first sheet-type wiring. The first sheet-type wiring may be disposed to face an outer surface of each of the electrode assemblies.

Complex electrode assembly including plurality of electrode assemblies and electrochemical device comprising the complex electrode assembly

Certain embodiments of the disclosure relate to a bimodal-type cathode active material for a lithium ion battery. The cathode active material includes a mixture of layered LiCoOlarge particles and manganese-based olivine structural small particles. The manganese-based olivine structural small particles may be represented by chemical formula LiCoMnFePO(0&#x2264;x&#x2264;1, 0&#x3c;y&#x2264;1, 0&#x2264;z&#x2264;1, x+y+z=1). An average particle diameter of the large particles may be 16 to 25 &#x3bc;m, and an average particle diameter of the small particles may be 1 to 3 &#x3bc;m. The cathode active material of the disclosure can achieve high energy density and high voltage stability.

Lithium ion battery and cathode active material therefor

A cell structure for a secondary battery includes an electrode assembly including a plurality of electrodes, a plurality of electrode tabs extending from the electrodes to an outside of the electrode assembly, and a plurality of lead tabs electrically connected to the electrode tabs and contacting the electrode assembly. In the cell structure, a part of each of the lead tabs is folded, and the electrode tabs are inserted into the folded part of each of the lead tabs.

Cell structure for secondary battery and secondary battery having the cell structure

An electrode assembly includes an electrode jelly-roll, which includes a winding including a first electrode plate, a second electrode plate, and a separator disposed between the first and second electrode plates; an outer surface parallel to a winding axis of the prismatic electrode jelly-roll, side surfaces perpendicular to the winding axis; a first electrode tab, which is electrically connected to the first electrode plate and extends in a winding axis direction of the prismatic electrode jelly-roll; a second electrode tab, which is electrically connected to the second electrode plate and extends in a winding axis direction of the electrode jelly-roll, wherein an end portion of at least one of the first electrode tab and the second electrode tab is bent in a direction opposite to the direction in which the corresponding electrode tab extends and faces an outer surface of the prismatic electrode jelly-roll.

Electrode assembly and secondary battery including the same

A positive active material including: a core comprising a metal oxide, a non-metal oxide, or a combination thereof capable of intercalation and deintercalation of lithium ions or sodium ions; and a non-conductive carbonaceous film including oxygen on at least one portion of a surface of the core; a lithium battery including the positive active material; and a method of manufacturing the positive active material.

Cathode active material, secondary battery comprising the same, and method of manufacturing the positive active material

An exterior package for an electrode assembly of an electrochemical device includes a plurality of linear patterns. Each of the linear patterns has a cross-section of an uneven structure in a thickness direction of the electrode assembly and a linear pattern of the linear patterns includes a first element line and a second element line, which extend in different directions on a plane perpendicular to the thickness direction of the electrode assembly.

Exterior package for flexible electrochemical device and electrochemical device including the exterior package

A composite including: silicon (Si); a silicon oxide of the formula SiOx, wherein 0&#x3c;x&#x3c;2; and a graphene disposed on the silicon oxide.

Composite, carbon composite including the composite, electrode, lithium battery, electroluminescent device, biosensor, semiconductor device, and thermoelectric device including the composite and/or the carbon composite

Growing community of inventors

Seongnam-si, South Korea

Jaeman Choi