Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Seoul National University

Sungsoo Han

Inhyuk Son

Jumyeung Lee

Mijong Kim

Seongho Jeon

Minwoo Lim

Junghyun Choi

Heechul Jung

Hyoungwoo Choi

Kyueun Shim

Koichi Takei

Sangkook Mah

Woojin Bae

SeWon Kim

Hana Kim

Jongseok Moon

Eon-Mi Lee

Kanghee Lee

Byungmin Lee

Minho Cho

Myungkook Park

Jungsue Jang

Bokyung Jung

Seungrim Yang

Eunha Lee

Jeeeun Yang

Youngsuk Jung

Ken Ogata

Boksoon Kwon

Junho Lee

Jungho Lee

Junghyun Nam

Seunguk Kwon

Byoungsun Lee

Seongyong Park

Minjae Kim

Dukhyoung Yoon

Guesung Kim

Sungnim Jo

JungHyun Choi

Jihyun Yoon

Chaewoong Cho

Jongheon Seol

Dong-Su Ko

Hosung Yang

Woongryeol Yu

Sewon Kim

A porous silicon composite includes: a porous core including a porous silicon composite secondary particle; and a shell disposed on a surface of the porous core and surrounding the porous core, wherein the porous silicon composite secondary particle includes an aggregate of silicon composite primary particles, each including silicon, a silicon suboxide on a surface of the silicon, and a first graphene on a surface of the silicon suboxide, wherein the shell include a second graphene, and at least one of the first graphene and the second graphene includes at least one element selected from nitrogen, phosphorus, and sulfur.

Silicon composite cluster and carbon composite thereof, and electrode, lithium battery, and electronic device each including the same

A porous silicon-containing composite includes: a porous core including a porous silicon composite secondary particle; and a shell on at least one surface of the porous core, the shell including a first graphene, wherein the porous silicon composite secondary particle includes an aggregate of a first primary particle including silicon, a second primary particle including a structure and second graphene on at least one surface of the first primary particle and the second primary particle, and wherein at least one of a shape and a degree of oxidation of the first primary particle and the second primary particle are different. Also an electrode including the porous silicon-containing composite, a lithium battery including the electrode, and a device including the porous silicon-containing composite or the carbon composite.

Porous silicon-containing composite, carbon composite using the same, and electrode, lithium battery and electronic device each including the same

A binder including a metal salt of a graft copolymer, which is a polymerization product of polyvinyl alcohol, an ethylenically unsaturated carboxylic acid, and a polymerizable monomer having a long-chain alkyl group.

Binder, method of preparing the same, electrode for secondary battery including the binder, and secondary battery including the electrode

A porous silicon composite including: a porous silicon composite cluster comprising a porous silicon composite secondary particle and a second carbon flake on at least one surface of the porous silicon composite secondary particle; and a carbonaceous layer on the porous silicon composite cluster, the carbonaceous layer comprising amorphous carbon, wherein the porous silicon composite secondary particle comprises an aggregate of two or more silicon primary particles, the two or more silicon primary particles comprise silicon, a silicon suboxide of the formula SiO, wherein 0&#x3c;x&#x3c;2 on a surface of the silicon, and a first carbon flake on at least one surface of the silicon suboxide, the silicon suboxide is in a form of a film, a matrix, or a combination thereof, and the first carbon flake and the second carbon flake are each independently present in a form of a film, particles, a matrix, or a combination thereof. Also a method of preparing the porous silicon composite, a carbon composite, an electrode, and a device, each including the porous silicon composite, and a lithium battery including the electrode.

Porous silicon composite cluster structure, method of preparing the same, carbon composite using the same, and electrode, lithium battery, and device each including the same

An electrode composite conducting agent for a lithium battery includes a carbonaceous conductive material, and the graphene-silica composite, wherein the graphene-silica composite includes a matrix including graphene, and a silicon suboxide of the formula SiOwherein 0&#x3c;x&#x3c;2, or a combination of silicon dioxide and silicon suboxide of the formula SiOwherein 0&#x3c;x&#x3c;2, or a combination thereof, wherein an amount of the graphene-silica composite is 20 parts by weight or less, based on 100 parts by weight of a total weight of the composite conducting agent. Also an electrode for a lithium battery including the electrode composite conducting agent, a method of manufacturing the electrode, and a lithium battery including the electrode.

Electrode composite conducting agent for lithium battery, electrode for lithium battery, method of manufacturing the same, and lithium battery including the electrode

A binder includes a cross-linked product of at least a first polymer, a second polymer, and a third polymer, wherein the cross-linked product is cross-linked by at least two ester bonds; the first polymer includes polyimide, polyamic acid, a copolymer thereof, or a combination thereof, wherein the first polymer includes a structural unit including an alkali metal and a structural unit including at least one hydroxyl functional group; the second polymer includes poly(acrylic acid), poly(methacrylic acid), a copolymer thereof, or a combination thereof; and the third polymer includes polyvinyl alcohol, polyacrylamide, polymethacrylamide, a copolymer thereof, or a combination thereof.

Binder, electrode and lithium battery including the same, and method of preparing the binder

An apparatus for measuring a deformation stiffness of an article includes a force measuring means configured to measure a force generated in a thickness direction of the article; a thickness measuring means configured to measure a thickness of the article; and a data processor configured to differentiate force with respect to thickness to calculate the deformation stiffness of the article, wherein each of the force and the thickness are a result of a volume change of the article.

Apparatus and method for measuring deformation stiffness of a secondary battery

Battery housing structures and battery apparatuses including the same are provided. A battery housing structure may include a case including an accommodation region in which a battery unit is accommodated, and an elastic member assembly provided in the case and configured to apply a pressure to the battery unit accommodated in the accommodation region. The elastic member assembly may include at least one first elastic member having an elastic coefficient that increases when a displacement increases and at least one second elastic member having an elastic coefficient that decreases when a displacement increases. The at least one first elastic member and the at least one second elastic member may have different structures or may be arranged in different directions.

Battery housing structure including plurality of elastic members, and battery apparatus including the same

A silicon-containing structure including: a silicon composite including a porous silicon secondary particle and a first carbon flake on a surface of the porous silicon secondary particle; a carbonaceous coating layer on the porous silicon composite, the carbonaceous coating layer comprising a first amorphous carbon; and the silicon composite comprises a second amorphous carbon and has a density that is equal to or less than a density of the carbonaceous coating layer, wherein the porous silicon secondary particle includes an aggregate of silicon composite primary particles, each including silicon, a silicon suboxide on a surface of the silicon, and a second carbon flake on a surface of the silicon suboxide.

Silicon-containing structure, method of preparing the same, carbon composite using the same, and electrode, lithium battery, and device each including the same

A negative active material including an active material core; and a polymer layer disposed on a surface of the active material core, wherein the polymer layer includes a third polymer including a cross-linked product of a first polymer and a second polymer, wherein the first polymer is at least one of polyamic acid, polyimide, or a combination thereof, and includes a first functional group; and the second polymer is water-soluble and includes a second functional group, and wherein the first polymer and the second polymer are cross-linked by an ester bond that is formed through at least one reaction starting from the first functional group and the second functional group, and at least one of the first polymer and the second polymer further includes a halogen group.

Negative active material, lithium secondary battery including the same, and method of manufacturing the negative active material

A topological quantum framework includes a plurality of one-dimensional nanostructures disposed in different directions and connected to each other, wherein a one-dimensional nanostructure of the plurality of one-dimensional nanostructures includes a first composition including a metal capable of incorporating and deincorporating lithium, and wherein the topological quantum framework is porous.

Topological quantum framework, composite anode active material, anode, lithium battery, semiconductor, and device comprising the topological quantum framework, and method of preparing the topological quantum framework

A composite anode active material includes a composite medium, the composite medium including a first medium block including a metal nanostructure capable of intercalation or deintercalation of lithium and a conductive medium disposed on the metal nanostructure; and a second medium block, disposed adjacent to the first medium block and including a medium which is free of the metal nanostructure.

Composite anode active material, anode and lithium battery including the composite anode active material, and method of preparing the composite anode active material

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Hwaseong-si, South Korea

Sungsoo Han