Samsung Sdi Co., Inc.

Robert Boschgmbh

Sb Limotive Company Ltd.

Seok-Yoon Yoo

Sang-Eun Cheon

Chi-Young Lee

Jae-Kyung Kim

Hye-Won Yoon

Sang-Won Byun

Yong-Sam Kim

Tatsuya Hashimoto

Jong-Seok Moon

Dong-wook Kim

Sang-jin Park

Jeong-Won Oh

Yoon-Tai Kwak

Kwan-Hyung Lee

Yun-Jung Kwak

Young-Bong Choi

Dong-Hyun Lee

Hyun-Seok Kim

Ji-Hyoung Yoon

Hyun-Soo Lee

Sang-Jin Park

Min-Seok Koo

Sang-Dae Hwang

Kwan Hyung Lee

Dong-Wook Kim

A rechargeable battery includes: an electrode assembly including a first electrode and a second electrode; a case accommodating the electrode assembly; a first terminal electrically coupled to the first electrode, and a second terminal electrically coupled to the second electrode; a cap plate combined to the case and having a short-circuit hole formed therein; a membrane fixed to the cap plate and arranged in the short-circuit hole, the membrane being deformable to short-circuit the first electrode and the second electrode; and a short-circuit protrusion electrically coupled to the second electrode and arranged above the membrane to protrude theretoward, the short-circuit protrusion being arranged toward a side from a center of the short-circuit hole.

Rechargeable battery having short-circuit protrusion

A rechargeable battery includes: a case accommodating an electrode assembly; a cap plate coupled to the case at an opening thereof; an electrode terminal electrically connected to the electrode assembly and on the cap plate; and a top plate between the electrode terminal and the cap plate, wherein the top plate and/or the electrode terminal has a slanted side at a lower side thereof facing the cap plate.

Rechargeable battery

A rechargeable battery includes: an electrode assembly including a first electrode and a second electrode; an electrode terminal configured to be electrically coupled to the electrode assembly; a case configured to accommodate the electrode assembly; and a cap plate mounted at an opening of the case, the cap plate having a terminal hole. The electrode terminal includes: a first terminal at the terminal hole of the cap plate and configured to be electrically coupled to the electrode assembly; a second terminal at an exterior side of the cap plate and configured to be electrically coupled to the first terminal such that the first terminal is exposed to an exterior of the case; and a third terminal on the second terminal and configured to be elastically deformable and electrically coupled to the first terminal through the second terminal.

A rechargeable battery includes a conductive case including a bottom part and a wall part extending from a periphery of the bottom part, an electrode assembly including a positive electrode and a negative electrode, and accommodated in the case, a cap plate opposite to the bottom part and electrically connected to the case, a positive terminal fixed to the cap plate and electrically connected to the cap plate, a negative terminal fixed to the cap plate and electrically insulated from the cap plate, a positive electrode tab extending from the positive electrode and electrically connected to the bottom part, and a negative electrode tab extending from the negative electrode, facing the positive electrode tab, and electrically connected to the negative terminal, wherein a length of the cap plate in a first direction is less than a height of the wall part in a second direction.

Disclosed is a rechargeable battery including a case, an electrode assembly accommodated in the case, a first terminal unit electrically coupled to the electrode assembly, and a first current collector including a first portion coupled with the electrode assembly, a second portion coupled with the first terminal unit, and a connection unit coupling the first portion and the second portion and having a thickness that is greater than the thickness of the first portion.

A rechargeable battery including an electrode assembly, a case housing the electrode assembly, a cap plate coupled to the case, a first electrode terminal on the cap plate, and a first lead tab electrically connecting the electrode assembly and the first electrode terminal, wherein the first lead tab has a cell fuse and a heat dissipating member coupled to the first lead tab and spaced from the cell fuse.

A secondary battery including an electrode assembly, the electrode assembly including electrode plates and a separator interposed between the electrode plates, at least one of the electrode plates including a coated part, the coated part including a metallic plate having an active material coated thereon, and an uncoated part, the uncoated part including a metallic plate without active material coated thereon, the uncoated part including a folding line in the uncoated part, and a folding part with an end portion folded with respect to the folding line; and a current collector electrically contacting the folding part.

Secondary battery

A rechargeable battery includes: a case; an electrode assembly housed in the case and including a first electrode, a second electrode, and a separator between the first electrode and the second electrode, the first electrode having a coated portion coated with a first active material and an uncoated portion absent the first active material; a safety assembly including a first electric conductive plate and a first supporting protrusion extending from the first electric conductive plate and physically coupled to the uncoated portion; a current collecting tab electrically coupling the electrode assembly with the terminal and physically coupled to the uncoated portion; and a first auxiliary plate physically coupled to the uncoated portion at a surface of the uncoated portion opposite to where the first supporting protrusion is physically coupled to the uncoated portion.

A rechargeable battery configured to stably and easily interrupt a current includes: an electrode assembly including a positive electrode, a negative electrode, and a separator between the positive electrode and the negative electrode; a case containing the electrode assembly therein and having a first opening at one end thereof; and a first plate coupled to the case and sealing the first opening, the first plate electrically connected to the electrode assembly, wherein the first plate includes a wrinkle portion configured to deform for disconnecting the first plate from the electrode assembly when an internal pressure of the case is greater than a reference pressure.

A secondary battery includes an electrode assembly including a positive electrode, a negative electrode, and separators which are wound together, current collecting plates attached to the electrode assembly, a case configured to accommodate the electrode assembly and the current collecting plates, and a cap configured to cover an opening of the case and electrically connect to the current collecting plates. Each of the current collecting plates includes a current collecting part and a welding part. The current collecting parts electrically connect to the electrode assembly. The welding part is welded to the electrode assembly and the current collecting part.

Current collecting plate and secondary battery including current collecting plate

A secondary battery includes an electrode assembly having a positive electrode, a negative electrode and a separator interposed between the positive and negative electrodes and a container for receiving the electrode assembly inside thereof. The secondary battery also includes a cap assembly fixed to the container to seal the container and a gasket disposed between the container and the cap assembly. The gasket has at least one concavo-convex portion on a surface contacting the container and/or the cap assembly. This improved gasket structure enhances the air tightness of the secondary battery.

Secondary battery having a sealing gasket with concave and convex portions

A rechargeable batteryincludes a plurality of electrode assemblies; a casehousing the electrode assemblies; at least one electrode terminal, electrically connected to the electrode assembliesby a lead tab, the lead tabincluding a terminal junction part; and a prong portion extending from the terminal junction plate, the prong portion comprising a plurality of prongs, each of the prongs having a main bodyelectrically connected to one of the electrode assembliesand an angled bodybent at one angle from the main body

Rechargeable battery with terminal junction and prong

A battery including: a case having a case region extendable along a first direction; an electrode assembly housed within the case and including a first electrode, a second electrode, and a separator between the first electrode and the second electrode, the first electrode including a first uncoated region at a first end of the electrode assembly, and the second electrode including a second uncoated region at a second end of the electrode assembly, the second end facing oppositely away from the first end, and the first uncoated region being spatially separated from the second uncoated region along the first direction; and a terminal electrically coupled to at least one of the first uncoated region or the second uncoated region, the case region being between the first uncoated region and the second uncoated region along the first direction.

Rechargeable battery having an extendable case region

A rechargeable battery includes an electrode assembly comprising a positive electrode, a negative electrode, and a separator between the positive electrode and the negative electrode wound together and a case housing the electrode assembly, wherein the electrode assembly has an inner surface and an outer surface having a concave portion.

Growing community of inventors

Suwon-si, South Korea

Seok-Yoon Yoo