Samsung Sdi Co., Inc.

Robert Boschgmbh

Hae-Kwon Yoon

Ho-Jin Kweon

Min-Yeol Han

Sang-Won Byun

Hyoung-Juhn Kim

Hee-Tak Kim

Young-Mi Park

Seong-Jin An

Yeong-Chan Eun

Jun-Won Suh

Sung-Yong Cho

Dong-Hun Lee

Jong-Man Kim

Min-Kyu Song

Ju-Yong Kim

Min-Hyung Guen

Jong-Ki Lee

Soo-Seok Choi

Jeong-Won Oh

Jan-Dee Kim

Hyo-Rim Bak

Jin-Bum Kim

Wan-Mook Lim

Seung-Bok Lee

Yong-Hee Yun

Myoung-Han Ryu

Hyun-Gyu Park

A rechargeable battery includes at least two electrode assemblies including electrodes on opposite surfaces of a separator, a case accommodating the electrode assemblies, a cap plate coupled to an opening of the case, first and second electrode terminals in the cap plate, and first and second lead tabs connected to respective first and second electrode terminals and to respective uncoated regions of the two electrode assemblies, wherein a first uncoated region of each of the two electrode assemblies is at a center of the case and is connected to the first lead tab, and wherein a second uncoated region of each of the two electrode assemblies is at an edge of the case and is connected to the second lead tab.

Rechargeable battery

A membrane-electrode assembly for a fuel cell of the present invention includes an anode and a cathode facing each other, and a polymer electrolyte membrane interposed therebetween. At least one of the anode and the cathode includes a catalyst layer and an electrode substrate. The catalyst layer includes a catalyst and a porous ionomer. The polymer electrolyte membrane contacts one side of the catalyst layer and the electrode substrate contacts the other side of the catalyst layer.

Method for making membrane-electrode assembly for fuel cell and method for making fuel cell system comprising the same

A rechargeable battery module includes a plurality of unit cells each including a rechargeable battery, a first electrode terminal, and a second electrode terminal; a bus bar coupling adjacent ones of the plurality of unit cells; a first module terminal coupled to the first electrode terminal of one of the plurality of unit cells at one side of the unit cells; a second module terminal coupled to the second electrode terminal of an other one of the plurality of unit cells at an opposite side of the unit cells; and a module short-circuit member coupled to the first module terminal or the second module terminal, separated from the other module terminal, and configured to contact the other module terminal according to temperature.

Rechargeable battery module

A rechargeable battery having an improved penetration characteristic of an external short-circuit current in an electrode assembly by reducing an external short-circuit current. A rechargeable battery including an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case containing the electrode assembly; a cap plate covering an opening of the case; an electrode terminal protruding outside the case and electrically connected to the second electrode; and a resistance member between and electrically connecting the electrode terminal and the cap plate.

A rechargeable battery includes: an electrode; a case accommodating the electrode assembly therein; a cap plate closing an opening of the case; a first electrode terminal and a second electrode terminal extending through the cap plate and coupled to the electrode assembly; and an external short-circuiter including a membrane closing and sealing a short-circuit opening in the cap plate and coupled to the second electrode terminal, and a short-circuit tab coupled to the first electrode terminal and separated from the membrane, wherein the cap plate includes a bending inducement groove formed at the second electrode terminal.

Rechargeable battery including external short-circuit member

A rechargeable battery including an electrode assembly including a first electrode, a second electrode, and a separator between the first and second electrodes; a case housing the electrode assembly; a cap plate covering an opening of the case; an electrode terminal extending through the cap plate; a lead tab including a fuse part and connecting the electrode terminal and the electrode assembly; and an auxiliary discharge path between opposite sides of the fuse part and having a second electrical resistance value greater than a first electrical resistance value of the fuse part.

Rechargeable battery with fuse part and auxiliary discharge path

A battery includes an electrode assembly including a first electrode and a second electrode, a first electrode terminal, and a first current collecting member electrically connecting the first electrode terminal and a first electrode uncoated region of the first electrode. The first current collecting member includes a first terminal connection region, a side plate extending downwardly from the first terminal connection region towards the first electrode uncoated region, a first current collecting piece extending from the side plate, the first current collecting piece being in contact with the first electrode uncoated region, and a fuse between the side plate and the first current collecting piece.

A secondary battery that includes a cylindrical can, an electrode assembly arranged in a jelly-role configuration within the cylindrical can and having a core extending about an axis thereof and a hollow center pin arranged within the core of the electrode assembly and having an inner diameter and an outer diameter, the outer diameter forming ones of a pair of radial lengths diametrically opposite from each other, each of said pair of radial lengths extending from the outer diameter of the center pin to an external surface of the core, wherein the sum of the pair of radial lengths is in the range of 5% to 54% of the inner diameter of the center pin.

Cylindrical secondary battery

A polymer electrolyte membrane for a fuel cell, a method of preparing the same, and a fuel cell system comprising the same. The polymer electrolyte membrane includes a metal-bound inorganic ion-conductive salt and an ion-conductive cation exchange resin.

Polymer membrane for a fuel cell, a method of preparing the same, and a membrane-electrode assembly fuel cell system comprising the same

The electrode for a fuel cell of the present invention includes a catalyst layer and an electrode substrate supporting the catalyst layer, where the electrode substrate includes a hydrophilic region and a hydrophobic region separated from each other. The hydrophilic region and the hydrophobic region that are separated from each other can easily release water produced at the cathode, and thereby prevent clogging of pores of the membrane by water, and smoothly diffuse the reactants resulting in obtaining a high current density.

Electrode for fuel cell, and membrane-electrode assembly and fuel cell system comprising the same

A fuel cell system optimizing the ratio of width of a channel to a width of a rib forming a passage for supplying fuel and air, the ratio of width thereof to a height of a channel, and the number of passages, thereby improving the fuel diffusing performance and reducing a pressure drop therein is provided. The fuel cell system includes at least one stack for generating electrical energy by an electrochemical reaction between hydrogen and oxygen, a fuel supply portion for supplying fuel to the stack, and an oxygen supply portion for supplying oxygen to the stack. The stack is formed into a stacked configuration having a plurality of membrane electrode assemblies separated by separators. The separators have ribs which closely contact the adjacent membrane electrode assemblies and form channels through which the oxygen and hydrogen flow. The ratio of the width of a channel to the height of the same is between about 0.6 and about 0.8.

Fuel cell system and stack used therein

The present invention relates to a binder composition for a fuel cell including a proton conductor and one or more binders selected from the group consisting of poly[2,2'-(m-phenylene)-5,5&#x2032;-bibenzimidazole] (PBI), poly[2,5-benzimidazole] (ABPBI), polybenzoxazole (PBO), and polybenzothiazole (PBT).

Binder composition for fuel cell, membrane-electrode assembly for fuel cell, and method for preparing the membrane-electrode assembly

The present invention relates to a membrane-electrode assembly and a fuel cell system including an anode and a cathode facing each other, the polymer electrolyte membrane being interposed between the anode and the cathode, and the membrane-electrode assembly including an amphiphilic block copolymer including a hydrophobic block and a hydrophilic block of the polymer electrolyte membrane.

Membrane-electrode assembly and fuel cell system comprising the same

The polymer electrolyte membrane of the present invention includes a porous supporter having pores, and a metal ion adsorptive material and a proton conductive polymer which are present in the pores of the porous supporter.

Polymer membrane for fuel cell, method of preparing the same, and stack for fuel cell and fuel cell system comprising the same

The present invention provides a fuel cell system that includes a stack that has at least one electricity generating unit that generates electricity through a reaction between hydrogen and oxygen, a fuel supplier that provides fuel containing hydrogen to the electricity generating unit, an air supplier that provides air to the electricity generating unit, and an insulating unit that surrounds exposed outer surfaces of the stack.

Growing community of inventors

Yongin-si, South Korea

Hae-Kwon Yoon