Lg Energy Solution, Ltd.

Lg Chem, Ltd

Gil Young Lee

Je Jun Lee

Sang Sok Jung

Sang Suk Jung

Do Gyun Kim

Sang Uck Kim

Hang Soo Shin

Geon Woo Kim

Kwang Su Hwangbo

Jun Tak Kim

Kwang Su Hwang Bo

Ro Un Kim

Seong Mo Koo

Seung Tae Lee

A method of manufacturing a cylindrical battery case includes performing an ironing process, which is one of the processes of manufacturing the battery case, a plurality of times in order to decrease the surface roughness of the battery case, thereby improving the corrosion characteristics of the battery case. The surface roughness of the cylindrical battery case is decreased by performing a thickness reducing process when a process for forming the outer circumferential surface of a body of the cylindrical battery case is performed at the time of manufacturing the cylindrical battery case. In addition, corrosion characteristics are improved for respective values of the surface roughness.

Method of manufacturing cylindrical battery case having reduced surface roughness

A battery connector including a conductive plate configured to contact a first battery and a second battery so as to electrically connect the first battery and the second battery to each other, an upper fixer configured to be coupled the first battery, and a lower fixer configured to be coupled to the second battery.

Battery connector for series connection of batteries and battery pack including the same

Provided are a secondary battery that is capable of preventing a can member from corroding and a method for manufacturing the same. The secondary battery includes a can member defining an outer appearance of the secondary battery, a top cap assembly an opening of the can member, a gasket insulating the can member and the top cap assembly from each other, and a fracture part disposed on an inner circumference of the opening. The fracture part is blocked from the outside by the gasket.

Secondary battery and method for manufacturing the same

Growing community of inventors

Daejeon, South Korea

Gil Young Lee