Lg Chem, Ltd

Bugon Shin

Jinsoo Lee

Taesu Kim

Seokhee Yoon

Seokhyun Yoon

Sangyoon Jeong

Jinmi Jung

Hyeran Jung

Disclosed is a method of welding dissimilar metals, including: preparing a dissimilar metal bus bar composed of a plate-shaped first member made of a first metal and a plate-shaped second member made of a second metal disposed under the first member; folding one side of the dissimilar metal bus bar so that a portion of the second member is located on a portion of the first member; welding a lead made of the first metal on the first member; and welding a lead made of the second metal to the second member located on the portion of the first member, thus solving cracking or corrosion problems of a conventional welding process and also welding an over-lay clad metal with leads, thereby generating economic benefits and increasing the convenience of the welding process.

Method for welding dissimilar metals, dissimilar metallic busbar manufactured using same, and secondary battery comprising same

Disclosed are a method of welding a metal tab of an electrode layer for a cable battery and an electrode manufactured thereby. This welding method, suitable for welding a metal tab to an electrode including a current collector for a cable battery, a conductive layer formed on the outer surface of the current collector, and a polymer film layer formed on the inner surface of the current collector, includes: a) removing a portion of the conductive layer using a pulse laser, thus exposing the surface of the current collector positioned thereunder, and b) welding a metal tab to the surface of the current collector, thus enabling the welding of a metal tab and an electrode for a cable battery, which has been difficult to achieve using a conventional welding process.

Method for welding metal tab of electrode layer for cable battery and electrode manufactured thereby

Disclosed herein are a core-shell nano particle for formation of a transparent conductive film, a manufacturing method of the core-shell nano particle, and a manufacturing method of a transparent conductive film using the core-shell nano particle and, more particularly, a core-shell structured nano particle consisting of a core including indium or indium oxide and a shell including tin, a manufacturing method of the core-shell structured nano particle, and a manufacturing method of a transparent conductive film including (i) dispersing a core-shell structured nano particle into a solvent to manufacture a coating liquid, (ii) applying the coating liquid onto a substrate to form a coating layer, (iii) drying the coating layer, and (iv) performing an annealing process on the coating layer.

Core-shell nano particle for formation of transparent conductive film, and manufacturing method of transparent conductive film using the same

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Daejeon, South Korea

Bugon Shin