Samsung Sdi Co., Inc.

Samsung Electronics Co., Ltd.

Yu-Na Kim

Hyuk Kang

Jae-Woo Seo

Yang-Wook Kim

Jae-Bong Chun

Deok-ho Kim

Gyu-tae Park

Jong-Ha Lee

Gyu-Cheol Choi

Sung-Hyuk Shin

Jang-Ho Yoon

Ga-Jin Song

Myung-Gon Hong

Sang-Hyup Lee

Ho-jung Lee

San Hwang

Ik-soo Kim

Dong-Myeong Kim

Hyung-Tak Choi

Jun-Bum Shin

O-Hoon Kwon

A rechargeable battery includes: an electrode assembly including a first electrode and a second electrode; a housing having an open side, the housing accommodating the electrode assembly; a cap assembly including a cap plate for closing and sealing the open side of the housing; a first current collecting member under the cap assembly and connected to the first electrode; a second current collecting member under the cap assembly and connected to the second electrode; and an insulating case joined with the cap assembly, arranged between the cap plate and the electrode assembly, and having grooves at portions thereof respectively corresponding to the first and second current collecting members.

Rechargeable battery

A rechargeable battery includes: an electrode assembly comprising: a first electrode and a second electrode; a case comprising an opening at a side of the case, the case accommodating the electrode assembly; a cap assembly comprising a cap plate covering the opening of the case, a first terminal protruding out of the cap plate and electrically coupled to a first electrode, and a second terminal protruding out of the cap plate and electrically coupled to a second electrode; a first current collector coupled to a lower part of the cap assembly and having a first side electrically connected to the first terminal and a second side coupled to the first electrode; and a deformation preventer coupled to the lower part of the cap assembly and formed to accommodate a part of the first current collector.

An electrode assembly and a rechargeable battery having electrode tab are disclosed. In one aspect, the electrode assembly includes a first electrode and a second electrode which are wound with a separator placed therebetween The first electrode includes a first coated portion coated with an active material and a plurality of first electrode tabs T&#x2212;Tn protruding outwardly from the first coated portion, wherein n is a natural number greater than 1. The first electrode, when spread in a plane form, includes first to nth portions on which the first electrode tabs T&#x2212;Tn are respectively formed, wherein the first and nth portions of the first electrode respectively define the innermost and outermost portions thereof. Each of the first electrode tabs T&#x2212;Tn includes at least one tab, and wherein the number of the first electrode tab Tn is different from the number of each of the first electrode tabs T&#x2212;Tn&#x2212;1.

Electrode assembly and rechargeable battery having electrode tab

An electrode assembly and a rechargeable battery including the electrode assembly are disclosed. In one aspect, the electrode assembly includes a first electrode and a second electrode that are wound with a separator placed therebetween. The second electrode includes a first coated portion coated with an active material and a plurality of first electrode tabs T-Tn protruding outwardly from the first coated portion, wherein n is a natural number greater than 2. The first electrode, when spread in a plane form, includes first to nth portions on which the first electrode tabs T-Tn are respectively formed, wherein the first and nth portions of the first electrode respectively define the innermost and outermost portions thereof. The distance between the first electrode tab Tn placed at the outermost portion and the first electrode Tn&#x2212;1 placed at the second outermost portion of the first electrode is less than any of the distances between two adjacent ones of the other first electrode tabs T-Tn&#x2212;1.

An electrode assembly and a secondary battery having an electrode tab are disclosed. In one aspect, the electrode assembly includes first and second electrodes which are wound with a separator placed therebetween. The first electrode includes a first coated portion, and a plurality of first electrode tabs T-Tn not coated with an active material and protruding outwardly from the first coated portion, wherein n is greater than 2. The first electrode, when spread in a plane form, includes first to nth portions on which the first electrode tabs T-Tn are respectively formed, wherein the first and nth portions respectively define the innermost and outermost portions thereof. The distance between the first electrode tab Tn placed at the outermost portion and the first electrode Tn&#x2212;1 placed at the second outermost portion is greater than any of the distances between two adjacent ones of the other first electrode tabs T-Tn&#x2212;1.

Growing community of inventors

Yongin-si, South Korea

Yu-Na Kim