Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Koichi Takei

Seongho Jeon

Sungsoo Han

Ken Ogata

Kanghee Lee

Heechul Jung

Byoungsun Lee

Woojin Bae

Junho Lee

Minje Park

Jaemyung Lee

Minwoo Lim

Mijong Kim

Guesung Kim

Dong-Su Ko

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 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

A secondary particle-type electrode active material including: at least one pore; and a shell surrounding the at least one pore, wherein the shell includes a first layer and a second layer, the first layer including a first carbonaceous material, and the second layer including a composite and disposed on the first layer, wherein the composite includes a silicon material and a second carbonaceous material. Also, an electrode and a secondary battery include the electrode active material.

Electrode active material, electrode and secondary battery including the same, and method of preparing the electrode active material

An electrode active material including a secondary particle, the secondary particle including: a plurality of primary particles including a silicon-containing material; an electrically conductive material; and a chemically cross-linked water-insoluble polymer. Also an electrode, and a secondary battery, both of which include the electrode active material, and a method of preparing the electrode active material.

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Hwaseong-si, South Korea

Koichi Takei