Samsung Electronics Co., Ltd.

Yeonil Lee

Jaeman Choi

Euncheol Do

Moonseok Kwon

Kuntae Kwon

Jaeyeon Lee

Bookeun Oh

A battery and an electronic device are disclosed. The battery is component to the electronic device, and includes: a first cathode plate including a first surface oriented in a first direction, and a second surface oriented in a second direction opposite to the first direction, a first separation membrane disposed on the second surface of the first cathode plate, a first anode plate disposed on a surface of the separation membrane oriented in the second direction, a through hole formed adjacent to respective center portions of the first cathode plate, the first separation membrane, and the first anode plate, wherein the through hole is substantially perpendicular to one surface of the first cathode plate, a cathode tab disposed within the through hole and electrically connected to the first cathode plate, and an anode tab spaced apart from the cathode plate within the through hole and electrically connected to the first anode plate, wherein the cathode tab and the anode tab are at least partially exposed to an external environment through the through hole.

Flexible battery and electronic device including the same

A complex electrode assembly includes a first sheet-type wiring which extends in a lengthwise direction of the first sheet-type wiring and comprises a sheet region of which a width that is perpendicular to the lengthwise direction is greater than a thickness that is perpendicular to the lengthwise direction and a width direction of the first sheet-type wiring, and electrode assemblies which are arranged separate from each other in the lengthwise direction of the first sheet-type wiring and are electrically connected to the first sheet-type wiring. The first sheet-type wiring may be disposed to face an outer surface of each of the electrode assemblies.

Complex electrode assembly including plurality of electrode assemblies and electrochemical device comprising the complex electrode assembly

An electrode assembly includes an electrode jelly-roll, which includes a winding including a first electrode plate, a second electrode plate, and a separator disposed between the first and second electrode plates; an outer surface parallel to a winding axis of the prismatic electrode jelly-roll, side surfaces perpendicular to the winding axis; a first electrode tab, which is electrically connected to the first electrode plate and extends in a winding axis direction of the prismatic electrode jelly-roll; a second electrode tab, which is electrically connected to the second electrode plate and extends in a winding axis direction of the electrode jelly-roll, wherein an end portion of at least one of the first electrode tab and the second electrode tab is bent in a direction opposite to the direction in which the corresponding electrode tab extends and faces an outer surface of the prismatic electrode jelly-roll.

Electrode assembly and secondary battery including the same

A rechargeable battery is provided. The rechargeable battery includes a positive electrode substrate layer; a positive electrode active material layer disposed adjacent to the positive electrode substrate layer; a negative electrode substrate layer; a negative electrode active material layer disposed adjacent to the negative electrode substrate layer; a separator disposed between the positive electrode active material layer and the negative electrode active material layer; and a shape variable layer disposed between the positive electrode substrate and the positive electrode active material layer or between the negative electrode substrate and the negative electrode active material layer.

Rechargeable battery with variable layer dependent to temperature change

Disclosed is a battery mounted in an electronic device and having a notch structure patterned on an uncoated part, thereby reinforcing the bond between the partitioning films of the battery and providing a structure robust to external stress and enhanced for stabilized battery performance.

Electronic device including battery with notch formed in at least a portion of uncoated part of the battery

A flexible secondary battery includes: an electrode stack structure including a first electrode layer, a second electrode layer, and a separator disposed between the first and second electrode layers; and a binding structure surrounding the electrode stack structure, where the binder structure is in fixed contact with a first side of the electrode stack structure and is in slidable contact with a second side of the electrode stack structure.

Growing community of inventors

Seoul, South Korea

Yeonil Lee