Skhynix Inc.

Sk Innovation Co., Ltd.

Sk on Co., Ltd.

Samsung Electronics Co., Ltd.

Yonsei University

Intekplus Co., Ltd.

Lsis Co., Ltd.

Other

Samsung Display Co., Ltd.

Osong Medical Innovation Foundation

Korea University Research and Business Foundation

Kang, Min Gu

Min Gu Kang

Chang Kyu Choi

Hyang-Shik Kong

Sung-min Lee

Jin-Ho Ju

Dong Hwan Kim

Yong Hyun Cho

Soo Ho Kim

Young Hoon Do

Sang Han Lee

Dong Keun Kim

Jun Hyun Chun

Dong Uc Ko

Hyun Ju Yoon

Young Su Oh

Se Ho Lee

Min Suk Kang

Seong Ho Lee

Kook Hyun Han

Jeong Bae Yoon

Jung In Yeon

Jung Hwan Kim

Won Sang Hwang

Dug Young Kim

Dong Eun Kim

Hyun Seung Kim

Jin Soo Kim

Min Hwan Moon

Bong-Yeon Kim

Hyun-Joo Lee

Jae-yong Yoo

Byung-chul So

Jae Woong Kim

Su Hyun Kim

Jae Phil Cho

Han Choi

Ku Ik Kwon

Hae Suk Hwang

Noh Hyup Kwak

Yong Duck Son

Byoung Min Jin

Oh In Kwon

Gyu Yeul Hong

Won Gyun Kim

Whee Sung Kim

Choon Sung Nam

Yoon Ji Lee

Kyoung-Sik Kim

Yong Ho Seo

Seung-Hwa Baek

Hye Jung Bang

Ji Hoon Yang

Young Jae Won

Sang Yoon Lee

Seung Rag Lee

Byung Jun Park

Kwang Su Cho

Byung Yeon Kim

Keuk Jin Jeong

Min Ki Jo

Sung Ju Tark

Sung Eun Park

A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer including a first cathode active material layer and a second cathode active material layer sequentially stacked on the cathode current collector. The first cathode active material layer includes first cathode active material particles having a secondary particle structure, and the second cathode active material layer includes second cathode active material particles having a single particle shape. A ratio of a SPAN value of the second cathode active material particles relative to a SPAN value of the first cathode active material particles is in a range from 2 to 4.5.

Cathode for lithium secondary battery and lithium secondary battery including the same

A display device includes: a light emitting element; a driving voltage line transmitting a driving voltage signal having an active level or a non-active level in a preset period; a data line to which a data signal is applied; a first transistor connected between the driving voltage line and the light emitting element; and a second transistor connected to the driving voltage line and the data line, where a gate electrode of the second transistor is connected to the driving voltage line, and a source electrode of the second transistor is connected to the data line.

Display device

A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer including a first cathode active material layer and a second cathode active material layer sequentially stacked on the cathode current collector. The first cathode active material layer includes a first cathode active material particle having a secondary particle structure, and the second cathode active material layer includes a second cathode active material particle having a single particle shape. An adhesive force of the first cathode active material layer to a surface of the cathode current collector is greater than an adhesive force of the second cathode active material layer to a surface of the first cathode active material layer.

A memory module includes a module substrate, a plurality of memory devices, a first power line, and a second power line. The memory devices are mounted on the module substrate. Each of the memory devices includes a power management member. The first power line may be arranged in the module substrate to provide each of the memory devices with power. The second power line may be electrically connected between the power management members of adjacent memory devices to control and share the power provided to the adjacent memory devices.

Memory module including power line for supplying power to memory devices

A memory system includes a non-volatile memory device and a performance manager. The performance manager activates a plurality of sub-controllers according to a setting of a host device, allocates memory regions respectively to the plurality of sub-controllers, the memory regions being included in the non-volatile memory device, and determines, according to maximum performance values and a size ratio of the memory regions, credit sets to be allocated respectively to the plurality of sub-controllers.

Memory system and operating method of the memory system

A lithium secondary battery includes a cathode including a cathode current collector, and a first cathode active material layer and a second cathode active material layer sequentially formed on the cathode current collector, an anode, and a separation layer interposed between the cathode and the anode. The first cathode active material layer and the second cathode active material layer include a first cathode active material particle and a second cathode active material particle, respectively, which have different compositions or crystalline structures from each other, and the first cathode active material particle and the second cathode active material particle include lithium metal oxides containing nickel. The second cathode active material particle has a single particle structure.

Lithium secondary battery

Storage devices, methods of operating storage devices, and computing systems including storage devices are disclosed. In an embodiment, a storage device may include a plurality of memory devices and a memory controller for controlling the plurality of memory devices to process a request of a host in accessing plurality of memory devices, wherein the memory controller is configured to allocate the plurality of memory devices to a plurality of functions, allocate a plurality of request slots allowed to process the request per unit time for each of the plurality of functions, determine idle request slots other than active request slots being used to process the request among the plurality of request slots allocated to each of the plurality of functions, and control an internal operation of the plurality of memory devices based on at least one target function including the idle request slots among the plurality of functions.

Storage device, method of operating the same, and computing system including the storage device

A memory system includes a first semiconductor memory device, a second semiconductor memory device, and a controller for controlling operations thereof. Each of the first and second semiconductor memory devices includes a normal area and a preliminary area. The controller is configured to determine a data migration operation on target data stored in the first semiconductor memory device and in response thereto control the first semiconductor memory device to read the target data, generate migration data including a plurality of group migration complete data indicating that the data migration operation has been partially completed based on the target data, and control the second semiconductor memory device to program the migration data in the preliminary area of the second semiconductor memory device.

Memory system and operating method thereof

A semiconductor apparatus includes a temperature detecting circuit and a temperature raising circuit. The temperature detecting circuit detects a temperature to generate temperature detection information. The temperature raising circuit generates heat through a toggling operation based on the temperature detection information.

Semiconductor apparatus and semiconductor memory apparatus

A cathode active material for a lithium secondary battery including a lithium-transition metal composite oxide particle is provided. A crystal grain size of the lithium-transition metal composite oxide particle measured by an XRD analysis is 250 nm or more, and an XRD peak intensity ratio of the lithium-transition metal composite oxide particle is 9.8% or less. A lithium secondary battery including the lithium-transition metal composite oxide particle and having improved life-span and rate capability is provided.

Cathode active material for lithium secondary battery and lithium secondary battery including the same

A lithium secondary battery comprises a cathode, an anode, a separator and a nonaqueous electrolyte solution. The cathode includes a first cathode active material in which at least one of metals included in the first cathode material has a concentration gradient region between a central portion and a surface portion, and a second cathode active material having a single particle structure. The lithium secondary battery has improved life-span and penetration stability.

A lithium secondary battery according to an embodiment of the present invention includes an electrode assembly including a separation layer, and a plurality of cathodes and a plurality of anodes separated by the separation layer and repeatedly stacked, and a gas adsorption layer coated on a single surface of an outermost anode among the plurality of anodes.

A cathode active material for a lithium secondary battery includes a lithium-transition metal composite oxide particle having a lattice strain (η) of 0.18 or less, which is calculated by applying Williamson-Hall method defined by Equation 1 to XRD peaks measured through XRD analysis, and having an XRD peak intensity ratio of 8.9% or less, which is defined by Equation 2. By controlling the lattice strain and XRD peak intensity ratio of the lithium-transition metal composite oxide particle, a lithium secondary battery with improved life-span characteristics as well as output characteristics is provided.

A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes a lithium composite oxide particle that contains lithium and transition metals including an excess amount of nickel. The lithium composite oxide particle satisfies a predetermined XRD peak area relation. A lithium secondary battery using the cathode active material and providing improved stability and durability is provided.

A lithium secondary battery includes a cathode formed from a cathode active material including a first cathode active material particle and a second cathode active material particle, an anode and a separation layer interposed between the cathode and the anode. The first cathode active material particle includes a lithium metal oxide in which at least one metal forms a concentration gradient. The second cathode active material particle includes primary particles having different shapes or crystalline structures from each other.

Growing community of inventors

Daejeon, South Korea

Min Gu Kang