Samsung Electronics Co., Ltd.

Jaeyeon Lee

Bookeun Oh

Sungun Wi

Jaeman Choi

Sangheon Lee

Yeonil Lee

Junyoung Oh

Kiyoun Jang

Youngju Kim

Seongho Han

Seongjin An

Sihoon Youm

Sinyoung Jung

Kwanghoon Choi

Gilho Kim

Moosoon Lee

Jongmoon Yoon

Dol Kim

Seunghoon Yang

Yongsub Jeon

Youngho Seo

Disclosed is a battery. A battery according to various embodiments is characterized by comprising: a cathode including a cathode tab formed at one end; an anode disposed on one surface of the cathode and including an anode tab formed at one end; an electrode assembly including a first separator disposed between the cathode and the anode and separating the cathode from the anode, and a second separator having one surface disposed on the other surface of the cathode or the anode and including an extended portion extending from the other end of the cathode or the anode; and a pouch surrounding the electrode assembly, wherein the cathode, the anode, the first separator, and the second separator are wound so that the extended portion of the first separator is exposed to the outside, and an exposed surface of the extended portion is formed as an adhesive layer.

Battery including adhesive layer formed on extended region of separator of electrode assembly, and electronic device comprising same

An electronic device according to various embodiments of the present invention includes: a memory which stores one or more mapping parameters that indicate the correlation between a voltage change amount and the state of health (SOH) of the battery; and a processor, wherein the processor can be set to: detect that an external device for charging the battery is connected to the electronic device; charge the battery by using a charging current supplied from the external device; decide on at least one mapping parameter among the one or more mapping parameters on the basis of at least the charging current; check the voltage change amount of the battery while the battery is being charged; and acquire the SOH of the battery at least partially on the basis of the at least one mapping parameter and the voltage change amount.

Method for acquiring information about state of battery on basis of voltage change amount of battery during charging, and electronic device for supporting same

A battery and an electronic device including a battery are provided. The battery includes a case including a first face and a second face; a first unit cell including a first cathode, a first separator, and a first anode, the first anode having a characteristic of a first electrical conductivity when the first unit cell is discharged; and a plurality of second unit cells, each including a second cathode, a second separator, and a second anode, the second anode having a characteristic of a second electrical conductivity lower than the first electrical conductivity when the plurality of second unit cells are discharged. The plurality of second unit cells are disposed within the case to be adjacent to the first face and the second face, respectively, and the first unit cell is interposed between the plurality of second unit cells.

Battery including multiple unit cells having different characteristics in electronic conductivity of anode and electronic device including same

A battery, according to one embodiment of the present invention, may comprise: a pouch; an electrode assembly received in the pouch in a state in which a positive electrode substrate, a negative electrode substrate disposed below the positive electrode substrate, and a separator disposed between the positive electrode substrate and the negative electrode substrate are rolled up together; a first adhesive member for fixing at least one portion of one end of the electrode assembly to the rolled up outer surface of the electrode assembly; and a second adhesive member for providing fixing between the electrode assembly and the pouch at a region other than the region where the first adhesive member is disposed.

Battery and electronic device comprising same

An electronic device includes a housing structure including a first cover facing in a first direction and forming a first surface of the electronic device, and a second cover facing in a second direction opposite to the first direction and forming a second surface of the electronic device. The electronic device also includes a display positioned in a space formed by the housing structure and exposed through the first surface. The electronic device further includes an energy harvesting structure positioned in the space and configured to generate a current from a contact input to the first surface and a sound input generated inside and outside the electronic device. The electronic device additionally includes a battery positioned in the space. The electronic device also includes a charging circuit configured to charge the battery using the current received from the energy harvesting structure.

Electronic device with structure for harvesting energy

Certain embodiments of the disclosure relate to a bimodal-type cathode active material for a lithium ion battery. The cathode active material includes a mixture of layered LiCoOlarge particles and manganese-based olivine structural small particles. The manganese-based olivine structural small particles may be represented by chemical formula LiCoMnFePO(0&#x2264;x&#x2264;1, 0&#x3c;y&#x2264;1, 0&#x2264;z&#x2264;1, x+y+z=1). An average particle diameter of the large particles may be 16 to 25 &#x3bc;m, and an average particle diameter of the small particles may be 1 to 3 &#x3bc;m. The cathode active material of the disclosure can achieve high energy density and high voltage stability.

Lithium ion battery and cathode active material therefor

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

Growing community of inventors

Gyeonggi-do, South Korea

Jaeyeon Lee