Samsung Sdi Co., Inc.

Hye-Jung Lee

Hyun-Chul Kim

Sung-Hee Cho

Sang-Ho Jeon

Eui-Jeong Hwang

Gi-Young Kim

Seung-Hyun Son

Bong-Kyoung Park

Sung-Hyun Choi

Myoung-Sup Kim

Sil-Keun Jeong

Sung-Soo Kim

Jeong-Doo Yi

Sang-hyuck Ahn

Hyoung-Bin Park

Jung-min Kim

Mun-Ho Nam

Bok-chun Yun

Hyeon-seok Kim

Feygenson Naum

Jun-Won Suh

Sang-Hyuck Ahn

Ju-Hee Sohn

Jung-Min Kim

Sung-hyun Choi

Hyun-Hwa Song

Bok-Chun Yun

Naum Feygenson

Hyeon-Seok Kim

A flexible secondary battery includes an electrode assembly, a first external cover that is located on a first surface of the electrode assembly, and a second external cover that is located on a second surface of the electrode assembly, the second external cover and the first external cover including a sealing portion where edges of the first external cover and the second external cover are attached to each other to seal the electrode assembly. At least one of the first external cover and the second external cover includes a stress-relief pattern in a center portion.

Flexible secondary battery

An electrode assembly includes a structure including a first electrode plate and a second electrode plate that are wound together, and a separator between the first electrode plate and the second electrode plate, a first electrode tab that is electrically connected to the first electrode plate, and a second electrode tab that is electrically connected to the second electrode plate. The structure includes a pair of grooves at opposite sides of the structure, the grooves being formed by compression of the structure at the opposite sides in a direction perpendicular to a winding surface. The structure including a first part and a second part that are oppositely located with respect to a reference line connecting the pair of grooves, and the second part is shifted in a first direction such that the second part is partially misaligned with the first part.

Electrode assembly and battery pack including the same

A secondary battery includes: a case; and an electrode assembly accommodated in the case and including a positive electrode plate, a negative electrode plate, and a separator between the positive and negative electrode plates. At least one of the positive and negative electrode plates includes: a first sub-electrode plate including a first coating surface coated with an active material and a first non-coating surface facing oppositely away from the first coating surface and not coated with the active material; and a second sub-electrode plate including a second coating surface coated with an active material and a second non-coating surface facing oppositely away from the second coating surface and not coated with the active material. The first non-coating surface of the first sub-electrode plate faces the second non-coating surface of the second sub-electrode plate to allow the first and the second sub-electrode plates to slip relative to each other.

Secondary battery

A plasma display panel (PDP) comprises: a front substrate and a rear substrate which face each other; and a barrier wall which is interposed between the front substrate and the rear substrate, which includes base portions arranged on either side of a main discharge space, and protruding portions protruding on the base portions, respectively, and which defines stepped spaces on either side of the main discharge space. The stepped spaces are formed according to stepped surfaces formed by the base portions and the protruding portions. The PDP further comprises a pair of a scan electrode and a sustain electrode which generate a mutual discharge through the main discharge space. A channel space is defined by outer walls of the protruding portions on either side of the main discharge space, and an external light absorbing layer covers the channel space.

Plasma display panel characterized by high efficiency

A plasma display panel is disclosed. The plasma display panel has discharge cells which each have a range of widths between the first substrate and the second substrate. In addition, the discharge spaces are separated by non-discharge spaces having heights which are less than the heights of the discharge spaces.

Plasma display panel

A plasma display panel is disclosed. The plasma display panel has discharge cells which each have a range of widths between the first substrate and the second substrate. In addition, the discharge spaces are separated by non-discharge spaces having heights substantially the same as the heights of the discharge spaces.

Growing community of inventors

Yongin-si, South Korea

Hye-Jung Lee