Lg Chem, Ltd

Samsung Electronics Co., Ltd.

Lg Energy Solution, Ltd.

Lotte Chemical Corporation

Kepco Engineering & Construction Company, Inc.

Hyun Woo Park

Dong-Myung Kim

Young Joon Shin

Ki Woong Kim

Young Hoon Kim

Sungjin Kwon

Soonho Ahn

Hyo Seok Park

Dong Hyun Cho

Chan Ki Park

Eugene Oh

Seungyong Son

Kwang Ho Yoo

Kwang Woo Yoon

Tae Ho Kim

Sung Jin Kim

Hyuk Kang

Dae Hee Lee

Seong-soo Lee

Kyung Hoon Kim

Jang Soon Kim

Seong Min Kim

Young-hwan Kim

Se Ra Kim

Hyung Ku Yun

Dong Hui Kim

Han Ho Lee

Hyun Tae Kim

Kwang Ho Choi

Hyun Hee Son

Sang Baek Ryu

Jae-Hyon Kim

Byung Yul Choi

Hyun Joon Kang

Jae Han Jung

Jihee Woo

SungJin Kim

Duk Ki Kim

Sung Joon Park

Taek Kyun Shin

Jae Keun Yoon

In-Gu An

Seungyong Lee

Se Hyun Kim

Won Lee

Gyu Tae Choi

Myoung Goo Lee

In Gu An

Dongchul Lee

Hyung Mo Koo

Eun Seok Choi

Hyungsik Jang

Tae Gun Park

Jong Wan Hong

Young Jong Seo

Og Sin Kim

Sang Gyoon Chang

Dae Sung Lee

Hun Taek Han

Jae-Bin Chung

Wang Byung Chae

Seung Ho Hong

Jinmyung Cha

Sunghan Yoon

Jae Gwan Lee

Young Heon Choi

Mi Sun Cha

Seong Hwan Choi

Hyo Sang You

Pillgyu Jang

Sa Rah Kim

Ogsin Kim

KwangWoo Yoon

Yoo Jin An

Uk Yeong Kim

Dong Jun Lee

Jin Woo Choi

Hyun-Tae Kim

Young Ju Kwon

Keun Ho Yuk

Jae Seung Son

Hyoun Kuk Kim

Woo Jin Jun

Hyun Sang Jung

Do Woo Lee

Sung-Sik Hyun

Kyu Sang Park

Myoung Seok Kong

Jae Kwan Lee

Yoon Jeong Baek

The present invention relates to a pouch type case having trimming portions formed on both sides or four corners thereof and a battery pack including the same. The trimming portions are formed on the corners of the pouch type case such that the trimming portions are indented toward an electrode assembly accommodating part to reduce a unit area so as to increase pressure applied to unit cells when a battery pack is assembled, thereby facilitating assembling of the battery pack and increasing cell capacity per unit area. Furthermore, the unit cells can be fixed in the battery pack more stably. The pouch type case reduces the unit area so as to include a relatively large number of cells for pressure applied to the cells when the battery pack is assembled to thereby increase the cell capacity.

Pouch type case and battery pack including the same

A method of preparing a secondary battery including pre-lithiating an electrode assembly including an electrode structure including a plurality of electrodes and a plurality of separators, and a metal substrate. The plurality of electrodes and the plurality of separators are alternatingly stacked. The pre-lithiating includes supplying lithium ions from one of the plurality of positive electrodes to one of the plurality of negative electrodes up to a state of charge (SOC) of A % by electrically connecting one of the plurality of positive electrodes and one of the plurality of negative electrodes and applying a first current, supplying lithium ions from the metal substrate to the positive electrodes up to B % of capacity of the positive electrodes by electrically connecting the metal substrate and the positive electrodes and applying a second current, after applying the first current, and resting the electrode assembly, after applying the second current.

Method of preparing secondary battery

A method of generating a charge/discharge protocol of an additional charging/discharging operation included in an activation method with respect to assembled secondary batteries is provided. The method includes operation (a) of measuring a secondary battery thickness increase rate over time while repeating charging/discharging between a first voltage and a second voltage higher than the first voltage with respect to a first secondary battery; operation (b) of performing, at least once, an operation of performing operation (a) with respect to a second secondary battery after fixing the second voltage and changing the first voltage; operation (c) of determining one of first voltages except for a first voltage at a lowest rate from among measured secondary battery thickness increase rates as a lower limit voltage; and operation (d) of setting a protocol so that charging/discharging is repeated between the lower limit voltage and the second voltage.

Activation protocol generating method, and activation method and device using same

An electrode assembly for a secondary battery includes at least one positive electrode and at least one negative electrode alternately stacked in a state in which a separator is interposed therebetween. The positive electrode includes a first positive electrode having a single positive electrode tab and a second positive electrode having two or more positive electrode tabs. The negative electrode includes a first negative electrode having a single negative electrode tab and a second negative electrode having two or more negative electrode tabs. The output of the electrode assembly is adjustable.

Electrode assembly for secondary battery including different shaped electrodes

The present invention relates to a bundle-type carbon nanotube which has a bulk density of 25 to 45 kg/m, a ratio of the bulk density to a production yield of 1 to 3, and a ratio of a tap density to the bulk density of 1.3 to 2.0, and a method for preparing the same.

Bundle-type carbon nanotubes and method for preparing the same

A fluidized bed reactor includes: a reactor body; a dispersion plate mounted within the reactor body to partition the inside of the reactor body in a traverse direction and having a plurality of holes through which a reaction gas passes; a nozzle unit mounted on one surface of the dispersion plate to receive an inert gas from outside the reactor and inject the inert gas so as to crush deposits on the dispersion plate; a sensing unit configured to sense the deposits on the dispersion plate; and a control unit configured to control operation of the nozzle unit according to information sensed in the sensing unit.

Fluidized bed reactor

The present invention relates to a pressure-sensitive adhesive composition including a polymer of a monomer mixture containing isobornyl (meth)acrylate, a pressure-sensitive adhesive sheet, and a semiconductor wafer backgrinding method. In the present invention, by using isobornyl (meth)acrylate which is a hard-type monomer and has a low hydrophilic property, a pressure-sensitive adhesive composition having superior releasing and re-releasing properties and wettability with respect to the wafer, and having an excellent wafer-proofing property; a pressure-sensitive adhesive sheet prepared by using the pressure-sensitive adhesive composition; and a backgrinding method using the pressure-sensitive adhesive sheet can be provided.

Adhesive composition, adhesive sheet, and back grinding method for semiconductor wafer

A secondary battery cell module-type activation tray for transferring and charging a plurality of battery cells in a manufacturing process of a secondary battery, including a plurality of module trays that are embedded from one side opened to accommodate a plurality of battery cells in a plurality of rows to another side opposite thereto, the battery cells being disposed in a respective module tray, and each of the module trays has a structure that can be coupled or separated as extended in one direction or multiple directions in a plan view.

Modular tray for secondary battery cell

The present invention relates to a supported catalyst that can be used to produce a carbon nanotube aggregate with high bulk density, a method for preparing the supported catalyst, a carbon nanotube aggregate produced using the supported catalyst, and a method for producing the carbon nanotube aggregate. According to the present invention, the bulk density of the carbon nanotube aggregate is easily controllable. Therefore, the carbon nanotube aggregate is suitable for use in various fields.

Method for manufacturing carbon nanotube agglomerate having controlled bulk density

The present disclosure provides a battery cell clamping device to fix and clamp two or more battery cells in a process of clamping and baking the battery cells arranged in one direction, including fixing jigs interposed between the battery cells, a pressure applying part configured to clamp a cell arrangement by applying a pressure with the fixing jigs interposed, and a base having a structure supporting the cell arrangement in a direction against the pressure applied from the pressure applying part in a state in which the cell arrangement is disposed on an upper surface of the base, wherein each of the fixing jigs is formed with guide blocks to align the battery cell at a fixed position on the jig in such a manner that the guide block abuts at least two side surfaces of the battery cell which are extended with respect to each other.

Clamping apparatus of battery cell comprising fixing jig employed with guide block for alignment of battery cell

The present invention relates to a method for producing carbon nanostructures using a fluidized bed reactor. According to the method, some of the as-produced carbon nanostructures remain uncollected and are used as fluidic materials to improve the fluidity in the reactor. The method enables the production of carbon nanostructures in a continuous process. In addition, the fluidity of the catalyst and the fluidic materials in the reactor is optimized, making the production of carbon nanostructures efficient.

Carbon nanostructure preparation method, carbon nanostructure prepared by means of same, and composite material comprising same

A battery cell configured to have a structure in which an electrode assembly, including a positive electrode, a negative electrode, and a separator interposed therebetween, is mounted in a battery case, the electrode assembly including two or more unit cells having different planar sizes, the unit cells being stacked in the height direction on the basis of a plane, at least one first unit cell selected from among the unit cells has an asymmetric structure formed on at least one side of the outer edge thereof on the basis of a middle axis crossing a main body of the first unit cell when viewed from above, and at least one second unit cell selected from among the unit cells has an indented portion indented from at least one side of the second unit cell toward the middle of the second unit cell.

Battery cell having asymmetric and indented structure

A sealing mechanism for a reactor vessel (RV) cable penetration tube improves the functional and structural integrity of a cable inserted in an RV through a penetration tube due to use of a precise thimble. The sealing mechanism includes a penetration tube configured to penetrate an RV from an outside to an inside thereof and having a penetration hole for communication with the inside of the RV, a cable configured to be inserted in the RV through the penetration hole of the penetration tube, and a thimble placed between the cable and the penetration tube, wherein a dimple groove portion is provided on the thimble in a direction from an outer surface of the penetration hole toward the cable.

Sealing mechanism for a nuclear reactor vessel cable penetration tube

An electronic device is provided. The electronic device includes a camera, a communication circuit configured to communicate with an external electronic device, and a processor. The processor is configured to obtain an image using the camera, verify location information of the image, obtain identification information of the external electronic device from the external electronic device if the location information of the image is not verified, and determine the location information of the image based on the identification information of the external electronic device.

Image processing method and electronic device supporting the same

Growing community of inventors

Daejeon, South Korea

Hyun Woo Park