Samsung Sdi Co., Inc.

Robert Boschgmbh

Hui-Jun Lee

Chi-Young Lee

Jeong-Won Oh

Jong-Seok Moon

Joong-Heon Kim

Seung-Ho Kwak

Kwan-Hyung Lee

Jeong-Wan Haam

Seung-Yeol Yoo

Hee-Sang Nam

A rechargeable battery includes: a case having a receiving space at the inside thereof and having an opening; an electrode assembly accommodated in the receiving space of the case and including a first electrode and a second electrode; a cap plate at the opening of the case; and a terminal assembly at the cap plate, wherein the terminal assembly includes a terminal plate electrically connected to the first electrode, a terminal post extending through the terminal plate and the cap plate, an end of the terminal post being connected to the first electrode, and a bonding member between the terminal post and the terminal plate.

Rechargeable battery

A rechargeable battery includes an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode, a case accommodating the electrode assembly, a cap plate coupled to the case, a first current collector coupled to the first electrode of the electrode assembly, and a first terminal assembly. The first terminal assembly includes a first terminal coupled to the first current collector and having a first fixed groove or a first fixed protrusion, and a second terminal having a second fixed groove coupled to the first fixed protrusion or a second fixed protrusion coupled to the first fixed groove.

The described technology has been made in an effort to provide a rechargeable battery having advantages of protecting an electrode assembly and a case from arc debris generated from a cell fuse. A rechargeable battery in accordance with exemplary embodiment includes: an electrode assembly configured to perform charging and discharging operations; a case configured to accommodate the electrode assembly therein; a cap plate coupled to an opening of the case; an electrode terminal installed on the cap plate; a lead tab configured to connect the electrode assembly to the electrode terminal, and including a fuse; and a side retainer supported in an inner surface of the case to be coupled to the lead tab. The side retainer includes an exhaust guide member that is opened toward the cell fuse and a sidewall of the case.

A rechargeable battery includes an electrode assembly including a negative electrode, a positive electrode, and a separator therebetween, a case housing the electrode assembly, a cap plate sealing the case and electrically connected to the positive electrode, a negative terminal and a positive terminal penetrating the cap plate and respectively electrically connected to the negative electrode and the positive electrode, and a safety member located between the electrode assembly and the case, electrically connected to the negative electrode, and including an end portion coupled to the negative electrode, a plate portion at a side of the electrode assembly, and a resistance controller coupling the end portion and the plate portion, and having a higher electrical resistance than the plate portion.

A rechargeable battery includes an electrode assembly that performs charging and discharging, a case in which the electrode assembly is installed a cap plate coupled to the case, a lead tab connected to an electrode of the electrode assembly, and an electrode terminal in the cap plate and connected to the lead tab. The electrode terminal includes a column portion inserted into a terminal hole of the cap plate and a flange portion at one end of the column portion, the flange portion being wider than a cross-section of the column portion, and the flange portion being at an inner side of the cap plate. The lead tab includes an insertion portion into which the column portion is inserted, the lead tab being welded in a surface contact manner to the flange portion along an inner surface of an external circumference of the insertion portion.

A rechargeable battery includes an electrode assembly that performs charging and discharging, a case in which the electrode assembly is located, a cap plate coupled to an opening of the case, and electrode terminals located in the cap plate and insulated from the cap plate by insulation members located at terminal holes of the cap plate, the electrode terminals being connected to electrodes of the electrode assembly and extending outside the cap plate and the electrode terminals including a fastening portion that receives at least a part of a bus bar to be welded.

Rechargeable battery and module of the same

A rechargeable battery including an electrode assembly including a negative electrode and a positive electrode; a case housing the electrode assembly; a cap plate coupled to an opening of the case; a negative terminal and a positive terminal penetrating the cap plate and connected to the negative electrode and the positive electrode, respectively; an external short-circuit unit separately provided between the negative terminal and the cap plate and configured to short-circuit the negative terminal on the cap plate; and a thermistor for connecting the positive terminal and the cap plate, wherein the thermistor is configured to have reduced resistance when its temperature is increased.

Growing community of inventors

Yongin-si, South Korea

Hui-Jun Lee