Samsung Sdi Co., Inc.

Jun-Sub Lee

Pil-Goo Jun

Cheol-Hong Kim

A secondary battery includes an electrode assembly including a first electrode plate, a second electrode plate and a separator interposed therebetween; and a battery case in which the electrode assembly is accommodated. The first electrode plate is composed of a first coated portion having a first active material coated on a first substrate and a first non-coated portion. The second electrode plate is composed of a second coated portion having a second active material coated on a second substrate and a second non-coated portion. In the secondary battery, the section of a boundary portion between the first or second coated portion and the first or second non-coated portion is inclined.

Growing community of inventors

Yongin-si, South Korea

Jun-Sub Lee