Samsung Sdi Co., Inc.

Kyong-Jin Kim

Jae-Il Seong

Jang-Ho Yoon

Young-Bae Sohn

Young-Pil Choi

A rechargeable battery, including an electrode assembly performing charging and discharging; a case containing the electrode assembly and an electrolyte solution; cap plate coupled to an opening of the case to seal the opening and containing more electrolyte solution in a receiving groove on an inner surface thereof; and an insulation case coupled to the receiving groove by a protrusion and located between the electrode assembly and the cap plate.

Rechargeable battery

A secondary battery having a cap assembly, including an electrode assembly; a case in which the electrode assembly is located; a cap assembly having a cap plate coupled to and hermetically sealing the case. A terminal member has a head with a stepped protrusion penetrating the cap plate and insulated from the cap plate by an insulating member. The stepped protrusion presses the insulating member in multiple steps. The terminal member is connected to a positive or negative electrode terminal of the electrode assembly.

Growing community of inventors

Yongin-si, South Korea

Kyong-Jin Kim