Lg Chem, Ltd

U.S. Energy, Inc.

Routejade Inc.

Seung Ho Choi

Won Mun Choi

Dae June Joe

Kyung Joon Kim

Ji Eun Kim

Won Taeck Lim

Soo Yong Lee

Dong Gil Lee

Seung Young Park

Kyung Seog Youk

Min Soo Kim

Jung Min Sohn

Cheol Jae Kim

Young Hun Jin

Won Hee Kim

Hee Jung Jeon

Jeong Heon Ahn

Kyoung Hwan Oh

Dong Hui Kim

Suk Youn Kang

Hyo Jin Bae

Tae Hee Lee

Kyung Woo Kim

In Joong Kim

Hyun Woong Park

Proposed is a current collector for a positive electrode that substitutes for metal foil and includes a polymer film made of a nonmetal, nonconductor material, and an aluminum conductive material configured to define an outermost surface of the current collector for a positive electrode by being formed or applied, with a thickness of 0.25 to 0.6 μm, onto at least one of upper and lower surfaces of the polymer film, in which the conductive material serves as an electrochemical fuse or performs a function of blocking or reducing short-circuit current in the event of an internal short circuit or an external short circuit.

Positive electrode current collector

A current collector for a positive electrode according to the present invention may include a base film, a conductive material provided on at least one of upper and lower surfaces of the base film, a metal piece provided on the upper or lower surface of the base film and electrically connected to the conductive material, and a lead tab joined to any one of the metal piece, the conductive material, and the base film and electrically connected to the conductive material, in which the conductive material is positioned between the metal piece and the base film or between the lead tab and the base film, and in which the lead tab is welded to one of the metal pieces provided on the upper and lower surfaces of the base film or welded to the metal piece provided on one surface of the base film that faces the lead tab.

Current collector for positive electrode

The present invention relates to a modified conjugated diene-based polymer having controlled degree of branching, excellent affinity with a filler, and excellent processability properties and compounding properties, a method for preparing the same, and a rubber composition including the same. The modified conjugated diene-based polymer is prepared using a modifier represented by Formula 1 to include a functional group derived from the modifier in at least one terminal of the polymer chain: 1—wherein Rto Rand n are described herein.

Modified conjugated diene-based polymer, method for preparing the same and rubber composition comprising the same

A modifier useful for modifying a polymer providing a functional group having affinity with a filler, particularly, a silica-based filler is provided. A modified conjugated diene-based polymer including a functional group derived from the modifier having excellent affinity with a filler and improved compounding properties, and a method for preparing the same are also provided.

Modifier, modified conjugated diene-based polymer and method for preparing the same

A current collector for electrodes according to the present disclosure may include: a polymer film; a metal piece provided on at least one of upper and lower surfaces of the polymer film or one side of at least one of edges of the polymer film; an adhesive portion provided on surfaces of the polymer film and the metal piece to cover a boundary portion of the polymer film and the metal piece; and a conductive material formed on the surfaces of the polymer film, the metal piece, and the adhesive portion.

Current collector for electrode

A current collector for electrodes according to an embodiment of the present disclosure may include a polymer film, and a conductive material provided on at least one surface of upper and lower surfaces of the polymer film, wherein the conductive material may have a function of an electrochemical fuse or a function of blocking a short-circuit current.

A modified conjugated diene-based polymer represented by Formula 1, wherein a terminal of a polymer chain is modified, and a method for preparing same are provided. By including a modifier derived unit having a specific structure, a beta value affecting cold flow may be reduced through controlling the degree of branch, and accordingly, the cold flow of a polymer may be efficiently controlled and a mooney viscosity increasing ratio may be improved.

Modified conjugated diene-based polymer and method for preparing same

The present invention relates to a modifier represented by Formula 1, a method of preparing the same, a modified conjugated diene-based polymer having a high modification ratio which includes a modifier-derived functional group, and a method of preparing the polymer.

Modified conjugated diene-based polymer and method of preparing the same

The present invention relates to a compound represented by Formula 1, a method for preparing the same, and a modified conjugated diene-based polymer having a high modification ratio and including a functional group derived from the compound.

Compound and modified conjugated diene-based polymer including functional group derived therefrom

An amino silane-based compound, methods of preparing the same, and a modified conjugated diene-based polymer including an amino silane-based functional group are disclosed herein. In an embodiment, the amino silane-based compound is represented by Formula 1:  Ris a divalent hydrocarbon group having 1 to 30 carbon atoms, R, R, R, and Rare each independently a monovalent hydrocarbon group having 1 to 30 carbon atoms, Ris a divalent hydrocarbon group having 1 to 10 carbon atoms, j and k are each independently 0 or 1, n is an integer selected from 1 to 10, wherein at least one of Ror Ris the glycol unit.

Amino silane-based compound, method of preparing the same, and modified conjugated diene-based polymer including the compound

The present invention provides a compound represented by Formula 1, a modified and conjugated diene-based polymer with a high modification ratio, which includes a functional group derived from the compound, a method for preparing the polymer, a rubber composition including the polymer, and a tire manufactured from the rubber composition.

Modified and conjugated diene-based polymer and method for preparing thereof

The present invention relates to a modified polymer having a high modification ratio and an excellent affinity with a filler, a method of preparing the same, a rubber composition including the modified polymer, and a molded article prepared from the rubber composition. The modified polymer according to the present invention may exhibit a high modification ratio by including functional groups in a polymer main chain and on at least one end thereof, and thus, an affinity with a filler, such as silica, may be excellent. Also, the rubber composition according to the present invention may have excellent processability by including the modified polymer having an excellent affinity with the filler, and, as a result, a processed product (e.g., tire) prepared by using the rubber composition may have excellent tensile strength, abrasion resistance, and wet road surface resistance.

Modified polymer, method of preparing the same, and rubber composition including the modified polymer

The present invention provides a modified butadiene-based polymer capable of enhancing dispersability of an inorganic filler when used in a rubber composition, and enhancing viscoelasticity, a tensile property and processibility of the rubber composition in a balanced way from an interaction with the inorganic filler, and a modifier useful for preparing the same.

Modified butadiene-based polymer and modifier useful for preparing the same

The present invention relates to a modified styrene-butadiene copolymer with a high modification ratio, including a functional group derived from a modifier represented by Formula 1, a preparation method thereof, a rubber composition including the same, and a tire manufactured from the rubber composition.

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Daejeon, South Korea

Seung Ho Choi