Samsung Sdi Co., Inc.

Amorepacific Corporation

Jaemin Lim

Euysun Jung

Kyung Kon Kim

Soomi Eo

Youngchang Lim

Seunghee Park

Jeawoan Lee

Kwonchul Kim

Kyunghoon Cho

YoungMin Kim

Hyunjun Choi

Youngjun Lee

Jiwook Jang

Yanggyu Choi

Myoungwoo Kim

One aspect of the present disclosure is a sheet type mask gel composition including a polyol, a water-soluble thickener, and water, wherein adhesive strength is maintained for a long time, a mask sheet including the same, and a method of manufacturing the mask sheet.

Sheet type mask gel composition, mask sheet comprising the same, and manufacturing method of mask sheet

A secondary battery includes: an electrode assembly; and wings configured to press one of upper and lower ends of the electrode assembly in compressing directions. Thermal shrinkage of the electrode assembly may be prevented when the electrode assembly is repeatedly charged and discharged, and thus an internal short circuit caused by shrinkage of the electrode assembly may be prevented. The shape of the electrode assembly may be maintained by suppressing thermal shrinkage or expansion of the electrode assembly.

Secondary battery

A secondary battery includes: a wound electrode assembly including a first electrode plate, a second electrode plate, and a separator between the first electrode plate and the second electrode plate; a pouch accommodating the electrode assembly; and; an adhesive tape on an outer surface of the electrode assembly. The adhesive having adhesiveness through reaction with an electrolyte.

A secondary battery is disclosed. In one aspect, the secondary battery includes an electrode assembly and a case comprising an accommodation region configured to accommodate the electrode assembly. The accommodation region has a first width in a center area thereof and a second width in opposing ends thereof, and wherein the second width is greater than the first width. When the case configured to accommodate the electrode assembly is formed, formation errors caused by concentration of stress such as tearing of a raw material or thickness deviations may be prevented.

A secondary battery includes: an electrode assembly, a case accommodating the electrode assembly, and an electrode tab electrically connected to the electrode assembly and extending from inside of the electrode assembly to outside of the case. The electrode tab has different thicknesses at the inside of the electrode assembly and the outside of the electrode assembly.

A rechargeable battery includes an electrode assembly, a pouch accommodating the electrode assembly, a first electrode tab electrically connected to the electrode assembly, the first electrode tab including a protruding portion that protrudes outwardly from a first surface of the electrode assembly so as to be exposed to the outside of the pouch and a parallel portion that extends along the first surface of the electrode assembly, and a fixing tape that attaches and fixes the first electrode tab to the first surface of the electrode assembly. The fixing tape adheres to cover the parallel portion of the first electrode tab bent along the first surface of the electrode assembly and the first surface of the electrode assembly.

Rechargeable battery

A rechargeable battery is disclosed. In one aspect, the battery includes a case, an electrode terminal connected to the case and having a first exposed area, and an insulation gasket interposed between the electrode terminal and the case and partially covered by the electrode terminal. The insulation gasket has a second exposed area, and the second exposed area is greater than or equal to the first exposed area.

Growing community of inventors

Yongin-si, South Korea

Jaemin Lim