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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 111. Отображено 100.

27-09-2018 дата публикации

성능이 개선된 이차전지용 바인더 및 이를 포함하는 이차전지용 음극

Номер: KR0101902054B1

Автор: 유정우, 박준수, 윤지희, 김제영

Принадлежит: 주식회사 엘지화학

... 본 발명은 성능이 개선된 이차전지용 바인더 및 이를 포함하는 이차전지용 음극에 관한 것으로서, 상기 이차전지용 바인더에 포함되는 스티렌-부타디엔계 고무 및 아크릴계 고무의 중량비를 조절하여, 동일 함량에서 전지 성능이 가장 우수한 최적의 조성비를 갖는 바인더를 포함함으로써, 전극 접착력이 개선되는 동시에, 전극의 저항이 감소된 이차전지용 음극을 제공할 수 있다.

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Номер записи: 1

04-07-2016 дата публикации

POROUS SILICON BASED PARTICLES, PREPARATION METHOD THEREOF, AND ANODE ACTIVE MATERIAL COMPRISING THE SAME

Номер: KR0101636143B1

Автор: 유정우, 이미림, 이용주, 김은경, 이한호, 윤지현, 방병만, 이창래, 정일교, 이미경

Принадлежит: 주식회사 엘지화학, (주)에스제이신소재

... 본 발명은 Si 또는 SiOx(0 Подробнее

Номер записи: 2

30-01-2019 дата публикации

이차전지용 양극 슬러리 조성물, 이를 포함하는 이차전지용 양극 및 리튬 이차전지

Номер: KR1020190010470A

Автор: 김학윤, 임준묵, 유정우, 김제영

Принадлежит:

... 본 발명은 니켈을 포함하는 리튬 전이금속 산화물; 및, 폴리 비닐리덴 플루오라이드 분획(moiety) 및 폴리 클로로 트리플루오로 에틸렌 분획(moiety)을 포함하는 공중합체 바인더;를 포함하고, 상기 공중합체 바인더 내에 폴리 클로로 트리플루오로 에틸렌 분획이 1.4 몰% 내지 4.7 몰%로 포함되는, 양극 슬러리 조성물, 및 이를 포함하는 양극 및 리튬 이차전지에 관한 것이다.

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Номер записи: 3

05-10-2017 дата публикации

ELECTRODE ACTIVE MATERIAL SLURRY AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: WO2017171372A1

Автор: WOO, Kyung Hwa, JEONG, Kwang Ho, YOO, Jung Woo, RHO, Ye Cheol, KIM, Je Young

Принадлежит:

The present invention relates to an electrode active material slurry, and an electrode and a lithium secondary battery, which comprise the same, the electrode active material slurry comprising: a) an electrode active material; b) a conductive material; c) a binder; d) a solvent; and e) a cellulose-based compound having an average weight molecular weight (Mw) of 2,000,000-3,000,000, a degree of substitution of 1.0-1.2 and a viscosity (Brookfield viscometer, a speed of 12 rpm) of 4,000-10,000 cps. The phase stability of the electrode active material slurry can be improved and battery characteristics can be improved since the cellulose-based compound having specific ranges of molecular weight and degree of substitution is used.

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Номер записи: 4

05-03-2015 дата публикации

POROUS SILICON BASED PARTICLES, METHOD FOR PREPARING SAME AND ANODE ACTIVE MATERIAL COMPRISING SAME

Номер: WO2015030531A1

Автор: YOO, Jung Woo, LEE, Mi Rim, LEE, Yong Ju, KIM, Eun Kyung, LEE, Han Ho, YOON, Ji Hyun, BANG, Byoung Man, LEE, Chang Rae, JEONG, Il Kyo, LEE, Mi Kyeong

Принадлежит:

The present invention provides porous silicon based particles and a method for preparing the same, the porous silicon based particles characterized by comprising Si or SiOx(0 Подробнее

Номер записи: 5

04-09-2018 дата публикации

음극 슬러리의 제조방법

Номер: KR0101895116B1

Автор: 윤지희, 박준수, 김제영, 유정우

Принадлежит: 주식회사 엘지화학

... 본 발명은 음극 슬러리의 제조방법에 관한 것으로, 상세하게는 실리콘계 활물질, 카르복시 메틸 셀룰로오스, 스티렌-부타디엔 러버를 포함하는 제1 음극 슬러리, 및 흑연계 활물질, 도전재, 스티렌-부타디엔 러버 및 카르복시 메틸 셀룰로오스를 포함하는 제2 음극 슬러리를 제조하는 단계(단계 1); 및 상기 단계 1에서 제조된 제1 음극 슬러리 및 제2 음극 슬러리를 혼합하는 단계(단계 2);를 포함하는 음극 슬러리의 제조방법을 제공한다.

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Номер записи: 6

14-11-2016 дата публикации

실리콘계 음극 활물질, 이의 제조방법 및 이를 포함하는 리튬 이차전지

Номер: KR0101676086B1

Автор: 이미림, 유정우, 이용주, 김은경, 이한호, 윤지현, 방병만, 이창래, 정일교, 이미경

Принадлежит: 주식회사 엘지화학, (주)에스제이신소재

... 본 발명은 SiOx입자(0≤x<2); 및 상기 SiOx 입자 상에 산화막층을 포함하는 것을 특징으로 하는 음극 활물질을 제공한다. 본 발명의 일 실시예에 따른 음극 활물질은, SiOx 입자 상에 산화막층을 포함함으로써, 음극 활물질과 전해액과의 반응성을 감소시킬 수 있다. 또한, 이로 인해 SiOx 입자 표면의 부반응 생성물층의 형성을 감소시킴으로써 전극 내에서의 전기적 단락 및 부피 팽창률을 감소시킬 수 있으므로, 이차전지의 용량특성을 유지하면서 수명특성을 더욱 향상시킬 수 있다.

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Номер записи: 7

09-07-2020 дата публикации

REFRIGERATOR

Номер: WO2020141764A1

Автор: YOO, Jung Woo, KIM, Ju Young, SEO, Kook Jeong, YOO, Su-Cheol, YOON, Won-Jae

Принадлежит:

Provided is a refrigerator which can ensure a storage chamber volume by improving the shape of a condenser disposed in a machine chamber. The refrigerator comprises: a body in which a storage chamber is formed; and a cooling module detachably mounted to the body and forming a machine chamber in which a compressor is disposed, wherein the cooling module comprises: a module body forming the machine chamber; an L-shaped condenser disposed on one side of the compressor and comprising a first portion corresponding to a part of the rear surface of the machine chamber and a second portion corresponding to one side surface of the machine chamber; a base plate which is disposed at the bottom of the module body and on which the condenser is vertically mounted; a module cover covering the rear side of the machine chamber; and a suction channel comprising a first suction channel formed in the module cover to correspond to the first portion and a second suction channel formed in the body to correspond ...

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Номер записи: 8

11-06-2015 дата публикации

POROUS SILICON-BASED ANODE ACTIVE MATERIAL AND METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Номер: WO2015084036A1

Автор: LEE, Mi Rim, YOO, Jung Woo, KIM, Eun Kyung, LEE, Yong Ju, LEE, Han Ho, YOON, Ji Hyun, BANG, Byoung Man, LEE, Chang Rae, JEONG, Il Kyo, LEE, Mi Kyeong

Принадлежит:

The present invention provides a porous silicon-based anode active material and a method for preparing the same, and a lithium secondary battery including the same, characterized in that the porous silicon-based anode active material comprises porous SiOx particles (0≤x<2) on the surface of which an oxide film is coated. The anode active material can reduce the reactivity thereof with an electrolyte by comprising an oxide film formed on the porous SiOx particles (0≤x<2), and thus can minimize electrical short-circuit within the electrode. In addition, the anode active material can reduce the rate of change in the thickness of the electrode, which occurs when charging and discharging the lithium secondary battery, and improve lifespan characteristics of the lithium secondary battery by comprising a plurality of pores on the surface of, or on the surface of and on the inside of the SiOx particles.

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Номер записи: 9

04-10-2018 дата публикации

BINDER COMPOSITION FOR SECONDARY BATTERY, AND ELECTRODE FOR SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: WO2018182343A1

Автор: YOON, Ji Hee, YOO, Jung Woo, KIM, Je Young

Принадлежит:

The present invention relates to a binder composition for a secondary battery, and a lithium secondary battery anode and a lithium secondary battery comprising the binder composition, wherein the binder composition comprises a copolymer binder comprising (a) a unit derived from a vinyl-based monomer, (b) a unit derived from a conjugated diene-based monomer or a conjugated diene-based polymer, (c) at least one unit selected from the group consisting of units derived from a (meth)acrylic acid ester-based monomer, and (d) a unit derived from a water-soluble polymer, wherein the copolymer binder has a wet modulus of 0.02 MPa or higher.

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Номер записи: 10

01-11-2017 дата публикации

NEGATIVE ELECTRODE FOR SECONDARY BATTERY COMPRISING CMC-LI SALT AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: KR1020170120973A

Автор: JEONG, KWANG HO, RHO, YE CHEOL, YOO, JUNG WOO, KIM, JE YOUNG

Принадлежит:

The present invention relates to a negative electrode for a secondary battery in which a negative electrode mixture containing a negative electrode active material, a thickener and an aqueous binder is applied on a current collector, wherein the thickener is a lithium carboxymethyl cellulose salt (CMC-Li salt) having a substitution degree of a hydroxy (-OH) group of 0.7 to 1.5 by a lithium carboxymethyl group (-CH_2COOLi), and specifically, to the negative electrode having the content of the thickener of more than 0.6 wt% and not more than 1.4 wt% with respect to the total weight of the negative electrode mixture, and to the secondary battery comprising the negative electrode. COPYRIGHT KIPO 2017 (AA) Example 1 ...

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Номер записи: 11

14-01-2019 дата публикации

분산성 향상 및 저항 감소를 위한 이차전지용 음극 슬러리 및 이를 포함하는 음극

Номер: KR0101938236B1

Автор: 유정우, 조형석, 노예철, 우경화, 정광호, 김제영

Принадлежит: 주식회사 엘지화학

... 본 발명은 CMC의 치환도 또는 분자량 등의 물성을 조절하여 음극 활물질에 대한 CMC의 흡착량을 증가시킴으로써 음극 활물질의 분산성을 향상시키는 동시에, CMC 배합량을 감소시킴으로써 슬러리 고형분을 증가시키고 전지의 저항을 감소시킨 이차전지용 음극 슬러리 및 이를 포함하는 음극을 제공한다.

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Номер записи: 12

18-05-2017 дата публикации

ANODE SLURRY FOR SECONDARY BATTERY FOR IMPROVING DISPERSIBILITY AND REDUCING RESISTANCE, AND ANODE COMPRISING SAME

Номер: WO2017082546A1

Автор: YOO, Jung Woo, CHO, Hyung Suk, RHO, Ye Cheol, WOO, Kyung Hwa, JEONG, Kwang Ho, KIM, Je Young

Принадлежит:

The present invention provides an anode slurry for a secondary battery and an anode comprising the same, in which the dispersibility of an anode active material is improved by increasing the adsorption amount of CMC with respect to the anode active material by adjusting the degree of substitution or physical properties such as molecular weight, and a CMC blend amount is reduced so as to increase the slurry solid content and reduce the resistance of a battery.

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Номер записи: 13

08-08-2019 дата публикации

COMPOSITION FOR FORMING INSULATING LAYER FOR LITHIUM SECONDARY BATTERY, AND METHOD FOR MANUFACTURING ELECTRODE FOR LITHIUM SECONDARY BATTERY USING SAME

Номер: WO2019151831A1

Автор: PARK, Sung Chul, LEE, Ung Ju, CHUNG, Koo Seung, JEONG, Won Hee, YOO, Jung Woo, KIM, Young Jae

Принадлежит:

The present invention provides a composition for forming an insulating layer for a lithium secondary battery, comprising: a binder polymer; a colorant including at least one kind selected from the group consisting of an organic dye and an organic fluorescent material; and a solvent, the composition having a viscosity of at least 1,000 cP at 25°C.

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Номер записи: 14

27-08-2015 дата публикации

BATTERY CELL INCLUDING HOLE

Номер: WO2015126074A1

Автор: YOO, Jung Woo, KIM, Je Young, CHUNG, Geun Chang

Принадлежит:

The present invention provides a battery cell characterized by comprising: an electrode assembly, which has a stacked structure including an anode, a cathode, and a separation membrane interposed between the anode and the cathode, and which is mounted in a storage portion of a battery case; one or more holes formed in the electrode assembly from the battery case to reach the anode or the cathode; and a window formed of a transparent member formed at the portion of the battery case corresponding to the hole.

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Номер записи: 15

11-10-2017 дата публикации

MOLD DEVICE FOR HOT STAMPING

Номер: KR1020170110251A

Автор: YU, JEONG WOO

Принадлежит:

Disclosed is a mold device for hot stamping. According to the present invention, the mold device for hot stamping comprises: an upper mold positioned on an upper side of a processing material; a lower mold positioned on a lower side of the processing material while facing the upper mold; and a cooling injection unit installed in at least one among the upper mold and the lower mold, and linked to a motion where the upper mold presses the processing material to inject cooling fluid to the processing material. The present invention improves cooling efficiency of the processing material. COPYRIGHT KIPO 2017 ...

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Номер записи: 16

22-02-2017 дата публикации

CATHODE FOR SECONDARY BATTERY AND PRODUCTION METHOD THEREOF

Номер: KR1020170020032A

Автор: YOO, JUNG WOO, PARK, JI HYE, KIM, YONG JUN, OH, SONG TAEK

Принадлежит:

The present invention provides a cathode for a secondary battery, where the binder content is uniformly distributed in an upper layer, an intermediate layer and a lower layer of a cathode layer. The cathode for a secondary battery is produced by a method which maintains the contents of an active material, a binder, and a conductive material in cathode layer slurry within a certain numerical range with respect to a solvent, and controls drying temperature and time in a process of coating the slurry to a current collector and drying the same. COPYRIGHT KIPO 2017 (AA) Electrode layer (BB) Current collector ...

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Номер записи: 17

06-04-2016 дата публикации

LITHIUM SECONDARY BATTERY

Номер: KR1020160037863A

Автор: YOO, JUNG WOO, LEE, MI RIM, KIM, JE YOUNG, LEE, YONG JU

Принадлежит:

The present invention relates to a lithium secondary battery and, more specifically, to a lithium secondary battery including a negative electrode and a positive electrode. The negative electrode includes a silicon-based negative electrode active material, and initial coulomb efficiency of the positive electrode is lower than that of the negative electrode by 2 to 5%. The lithium secondary battery uses the silicon-based negative electrode active material and reduces changes in volume, generated by the insertion and elimination of much lithium. In addition, the initial coulomb efficiency of the positive electrode is lower than that of the negative electrode, which prevents the rise of an energy level of the negative electrode when the lithium secondary battery is discharged. Due to lithium remaining in the negative electrode, electrical conductivity is improved, thereby improving a lifespan of the lithium secondary battery. COPYRIGHT KIPO 2016 (AA) Voltage (BB) Example 1 (CC) Capacity ...

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Номер записи: 18

23-11-2016 дата публикации

수명 특성이 향상된 이차전지용 음극 활물질

Номер: KR0101678815B1

Автор: 엄인성, 유정우, 김제영, 하회진, 권지윤

Принадлежит: 주식회사 엘지화학

... 본 발명은 수명 특성이 향상된 이차전지용 음극 활물질에 관한 것으로서, 상세하게는, 실리콘(Si), 및 비정질 하드 카본(hard carbon), 또는 저결정성 소프트 카본(soft carbon)을 포함하는 이차전지용 음극 활물질을 제공한다.

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Номер записи: 19

07-04-2017 дата публикации

ELECTRODE ASSEMBLY AND SECONDARY BATTERY COMPRISING SAME

Номер: KR1020170038295A

Автор: LEE, TAEK SOO, SEOL, JONG HEON, KIM, JI YEON, CHOY, SANG HOON, YOO, JUNG WOO

Принадлежит:

The present invention relates to an electrode assembly and a secondary battery comprising the same. Provided is the electrode assembly, comprising an inside active material layer, a current collector, and an outside active material layer in sequence, and further comprising a curved double-sided electrode, wherein the inside active material layer comprises an inside binder and the outside active material layer comprises an outside binder, wherein an inside binder film composed of the inside binder has a modulus two or more times that of an outside binder film composed of the outside binder, and wherein the adhesive force of the inside active material layer is 10 or more times that of the outside active material layer. The electrode assembly according to the present invention contains the curved double-sided electrode and the inside binder of the double-sided electrode has a modulus two or more times that of the outside binder, and thus the deformation of the inside active material layer ...

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Номер записи: 20

07-10-2015 дата публикации

ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, PREPARATION METHOD THEREOF, AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME

Номер: KR0101557559B1

Автор: 유정우, 권원종, 황의용, 이길선, 김제영, 이용주

Принадлежит: 주식회사 엘지화학

... 탄소계 입자; 상기 탄소계 입자 상에 성장된 실리콘 나노 와이어; 및 상기 탄소계 입자 및 상기 실리콘 나노 와이어의 표면 상에 형성된 탄소 코팅층을 포함하는 음극재 및 이의 제조 방법에 관한 것이다. 본 발명의 음극재를 리튬 이차 전지의 음극에 사용함으로써 탄소계 입자와 실리콘 나노 와이어의 물리적 결합력을 증가시킬 뿐만 아니라 전도성을 개선하여 전지의 수명 특성을 향상시킬 수 있다.

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Номер записи: 21

12-10-2017 дата публикации

NEGATIVE ELECTRODE ACTIVE MATERIAL COMPOSITION HAVING ENHANCED ADHESION FORCE, NEGATIVE ELECTRODE USING SAME AND LITHIUM SECONDARY BATTERY

Номер: KR1020170111352A

Автор: JEONG, KWANG HO, PARK, JUN SOO, KIM, JE YOUNG, YOO, JUNG WOO, WOO, KYUNG HWA, RHO, YE CHEOL

Принадлежит:

The present invention relates to a negative electrode active material composition having enhanced adhesion force, a negative electrode using the same and a lithium secondary battery. Provided is a negative electrode active material composition capable of enhancing electrode adhesion force and manufacturing a negative electrode having low resistance properties by using an aqueous polymer having an amide group and acrylate-styrene butadiene copolymer rubber having high acrylate monomer content. Also, provided are a negative electrode and a lithium secondary battery having excellent performance by using the negative electrode active material composition. COPYRIGHT KIPO 2017 (AA) Comparative example 2 (BB) Comparative example 3 (CC) Comparative example 5 (DD) Example 3 ...

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Номер записи: 22

24-05-2018 дата публикации

LOW RESISTANCE CATHODE HAVING EXCELLENT ADHESIVENESS AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: KR1020180054434A

Автор: JEONG KWANG HO, RHO YE CHEOL, RYU JIN SOOK, KIM JE YOUNG, YOO JUNG WOO

Принадлежит:

In the present invention, carboxymethyl cellulose having polydispersity index (PDI, PDI = weight average molecular weight (M_w)/number average molecular weight (M_n)) of 10 or more and the weight average molecular weight of 2,000,000 or more is used in cathode mixture slurry, so the phase stability of the cathode mixture slurry is secured, and excellent adhesion and low resistance of a cathode manufactured therefrom can be achieved. COPYRIGHT KIPO 2018 ...

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Номер записи: 23

28-08-2015 дата публикации

SURFACE-COATED POROUS SILICON-BASED NEGATIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR MANUFACTURING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: KR1020150098453A

Автор: YOO, JUNG WOO, LEE, MI RIM, LEE, YONG JU, KIM, EUN KYUNG

Принадлежит:

According to an embodiment of the present invention, provided are a method for manufacturing a negative electrode active material, which comprises a step of forming an oxide coating layer on the surface of porous silicon-based particles or nanostructures by an atomic layer deposition method, and the negative electrode active material manufactured by the method. According to an embodiment of the present invention, the method for manufacturing the negative electrode active material is capable of forming a uniform and smooth coating layer, with a depth of not more than 10 nm, on the surface of porous silicon-based particles or nanostructures, which have a complex curved surface as nanostructures or a deep pore surfaces to the inside, by forming the oxide coating layer on the surface of porous silicon particles or nanostructures using the atomic layer deposition method. Therefore, uniform surface coating can be performed on the surface of the negative electrode active material and on the surface ...

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Номер записи: 24

05-02-2015 дата публикации

SECONDARY BATTERY TO WHICH ELECTROLYTE CAN BE ADDITIONALLY SUPPLIED

Номер: WO2015016479A1

Автор: UHM, In Sung, KWON, Ji Yoon, YOO, Jung Woo, KIM, Je Young, HAH, Hoe Jin, KIM, Kyoung Ho, KIM, Il Hong

Принадлежит:

The present invention relates to a secondary battery to which electrolyte can be additionally supplied, and more specifically to a secondary battery characterized by having an electrode assembly comprising a cathode, an anode, and a separation film interposed the cathode and the anode, and a built-in porous elastic body, in the interior of a battery case, capable of being impregnated with electrolyte.

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Номер записи: 25

17-05-2017 дата публикации

다공성 실리콘계 음극 활물질, 이의 제조 방법, 및 이를 포함하는 리튬 이차전지

Номер: KR0101737197B1

Автор: 유정우, 이미림, 김은경, 이용주

Принадлежит: 주식회사 엘지화학

... 본 발명의 일 실시예에 따르면, 결정성 실리콘계 입자의 표면, 또는 표면 및 내부에 다수의 기공을 포함하는 결정성 실리콘계 입자를 포함하고, 상기 결정성 실리콘계 입자는 하나의 기공과 그 기공과 인접하는 기공간의 간격이 표면에서 측정시 20 내지 200 nm인 것을 특징으로 하는 다공성 실리콘계 음극 활물질, 및 이의 제조방법을 제공한다. 본 발명의 일 실시예에 따른 다공성 실리콘계 음극 활물질은 기공간의 간격을 조절함으로써, 리튬 이차전지의 충방전시 전극의 팽창 및 수축에 따른 기계적인 스트레스를 줄일 수 있다. 뿐만 아니라, 리튬 이차전지의 충방전시 발생하는 부피 팽창을 음극 활물질의 외부보다 기공에 집중되도록 함으로써, 지속적인 충방전에도 결정성 실리콘계 입자의 형상 및 구조를 유지하면서, 부피 팽창을 효율적으로 제어할 수 있으므로, 리튬 이차전지의 수명 특성을 더욱 향상시킬 수 있다.

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Номер записи: 26

12-10-2017 дата публикации

NEGATIVE ELECTRODE FOR SECONDARY BATTERY, MANUFACTURING METHOD THEREOF, AND SECONDARY BATTERY INCLUDING SAME

Номер: KR1020170111725A

Автор: PARK, JUN SOO, YOON, JI HEE, KIM, JE YOUNG, YOO, JUNG WOO

Принадлежит:

The present invention relates to a negative electrode for a secondary battery, a manufacturing method thereof, and a secondary battery including the same, which can improve battery capacity and lifetime characteristics by increasing an adhesive force between a negative electrode collector and an active material and an adhesive force between active materials to reduce resistance in an electrode. The negative electrode for a secondary battery of the present invention comprises: a negative electrode collector; a first negative electrode active material layer formed on the negative electrode collector; and a second negative electrode active material layer formed on the first negative electrode active material layer. The thickness ratio of the first negative electrode active material layer to whole thickness of the first and second negative electrode active materials is less than 0.5. The first negative electrode active material layer includes styrene-butadiene-based rubber in which a total ...

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Номер записи: 27

12-10-2017 дата публикации

METHOD FOR MANUFACTURING NEGATIVE ELECTRODE SLURRY

Номер: KR1020170111638A

Автор: YOON, JI HEE, PARK, JUN SOO, KIM, JE YOUNG, YOO, JUNG WOO

Принадлежит:

The present invention relates to a method for manufacturing negative electrode slurry. The method comprises the following steps: (step 1) preparing the first negative electrode slurry comprising a silicon-based active material, a carboxyl methyl cellulose and styrene-butadiene rubber and the second negative electrode slurry comprising a graphite-based active material, a conductive material, styrene-butadiene rubber and carboxyl methyl cellulose; and (step 2) mixing the first negative electrode slurry and the second negative electrode slurry prepared in the step 1. According to the present invention, a negative electrode having improved lifespan properties can be manufactured. COPYRIGHT KIPO 2017 (AA) Graphite-based active material (BB) Silicon-based active material ...

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Номер записи: 28

08-05-2015 дата публикации

ANODE ACTIVE MATERIAL AND PREPARATION METHOD THEREOF

Номер: KR1020150050168A

Автор: LEE, YONG JU, JO, RAE HWAN, LEE, MI RIM, YOO, JUNG WOO, KIM, EUN KYUNG, LEE, SUNG MAN, HAM, JUN SIK

Принадлежит:

The present invention relates to an anode active material comprising: a core portion including Si and M_xSi_y; a shell portion including Si and a plurality of pores on the core portion, and a carbon coating layer on the shell portion. M of the M_xSi_y is at least one element selected from the group consisting of elements of 2A, 3A, and 4A groups, and a transition metal, and 1<=x<= 4 and 1<=y<=4 are satisfied. According to an embodiment of the present invention, the performance of the lithium secondary battery can be greatly improved since volumetric expansion of the anode active material can be minimized when being charged and discharged, mechanical properties can be enhanced, and excellent electrical conductivity can be achieved even after the expansion of the electrode during the charging and discharging. COPYRIGHT KIPO 2015 (a) Example 1 (b) Comparative example 1 ...

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Номер записи: 29

10-10-2019 дата публикации

ELECTRODE, SECONDARY BATTERY COMPRISING SAME ELECTRODE, AND METHOD FOR MANUFACTURING SAME ELECTRODE

Номер: WO2019194662A1

Автор: KIM, Seul Ki, KIM, Tae Gon, KIM, Je Young, JUNG, Wang Mo, YOO, Jung Woo, LEE, Sang Wook

Принадлежит:

The present invention relates to an electrode, a secondary battery comprising the electrode, and a method for manufacturing the electrode. The electrode comprises an electrode active material layer, the electrode active material layer comprising: an electrode active material; polyvinylidene fluoride; and a conductor, wherein the conductor comprises carbon nanotube structure in which 2 to 5,0000 single-walled carbon nanotube units are bound to each other and 0.91-0.5 wt% of the carbon nanotube structures are included in the electrode active material layer.

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Номер записи: 30

14-03-2017 дата публикации

리튬 이차전지

Номер: KR0101716611B1

Автор: 유정우, 이미림, 김제영, 이용주

Принадлежит: 주식회사 엘지화학

... 본 발명은 리튬 이차전지에 관한 것으로, 더욱 구체적으로 음극 및 양극을 포함하는 리튬 이차전지에 있어서, 상기 음극은 Si계 음극 활물질을 포함하고, 상기 양극의 초기 쿨롱 효율은 음극의 초기 쿨롱 효율보다 2% 내지 5% 낮은 것을 특징으로 하는 리튬 이차전지에 관한 것이다. 본 발명의 리튬 이차전지는 Si계 음극 활물질을 사용하면서도 다량의 리튬 삽입 및 탈리에 의한 부피 변화를 줄일 수 있을 뿐만 아니라, 양극의 초기 쿨롱 효율이 음극보다 낮음으로써 리튬 이차전지 방전시 음극 에너지 준위의 상승을 막고, 음극에 남아있는 리튬으로 인해 전기 전도성이 향상되어 리튬 이차전지의 수명을 향상시킬 수 있다.

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Номер записи: 31

25-01-2017 дата публикации

POUCH FOR SECONDARY BATTERY AND POUCH-TYPE SECONDARY BATTERY COMPRISING SAME

Номер: KR1020170009535A

Автор: HWANG, SOO JI, YOO, JUNG WOO, YU, HYUNG KYUN, LEE, JOO SUNG, HWANG, WON PILL

Принадлежит:

The present invention relates to a pouch for a secondary battery and a pouch-type secondary battery including the same. In the sealing part of the pouch for a secondary battery, an annular olefin film is laminated so that electrolyte penetration can be prevented, an electrode assembly storage area can be secured, and a vent phenomenon can be prevented. COPYRIGHT KIPO 2017 ...

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Номер записи: 32

04-06-2020 дата публикации

REFRIGERATOR AND METHOD FOR CONTROLLING SAME

Номер: WO2020111590A1

Автор: KIM, Do-Hyung, YOO, Jung Woo, YOO, Su-Cheol

Принадлежит:

The present invention relates to a refrigerator and a method for controlling same, and the purpose of the present invention is to improve a structure of a cooling compartment evaporator and a control method thereof such that the cooling compartment evaporator can replace the conventional accumulator and defrost heater. To this end, the refrigerator according to the present invention includes a compressor, a condenser, a throttling means, a freezer compartment evaporator, and a cooling compartment evaporator, which are connected to one another through a refrigerant fluid channel to form a cooling cycle, wherein: the cooling compartment evaporator is disposed between the freezer compartment evaporator and the compressor; a linear fluid channel having a predetermined length is formed at the refrigerant inlet side of the cooling compartment evaporator; and a curved fluid channel having a plurality of curved sections is formed at the refrigerant outlet side of the cooling compartment evaporator ...

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Номер записи: 33

26-03-2015 дата публикации

POROUS SILICON-BASED ANODE ACTIVE MATERIAL, AND LITHIUM SECONDARY BATTERY CONTAINING SAME

Номер: WO2015041450A1

Автор: LEE, Mi Rim, KIM, Hyun Chul, KIM, Eun Kyung, LEE, Yong Ju, YOO, Jung Woo

Принадлежит:

The present invention provides an anode active material comprising: porous silicon-based particles; and carbon particles, wherein the carbon particles comprise fine carbon particles and coarse carbon particles having different average diameters from the fine carbon particles. An anode active material according to one embodiment of the present invention comprises porous silicon-based particles, and fine and coarse carbon particles having different average diameters from each other so as to increase the contact between the porous silicon-based particles and the carbon particles, thereby further improving the lifetime characteristics of a lithium secondary battery.

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Номер записи: 34

05-06-2014 дата публикации

ANODE ACTIVE MATERIAL COMPRISING POROUS SILICON OXIDE-CARBON MATERIAL COMPLEX AND METHOD FOR PREPARING SAME

Номер: WO2014084636A1

Автор: YOO, Jung Woo, KIM, Je Young, LEE, Yong Ju, CHOI, Seung Youn, KANG, Yoon Ah, LEE, Mi Rim, JUNG, Hye Ran

Принадлежит:

The present invention relates to an anode active material comprising a porous silicon oxide-carbon material complex and a method for preparing same, wherein the porous silicon oxide-carbon material complex includes: a porous silicon oxide having pores; and a linear carbon material which coats the surface, the inside of the pores, or the surface and the inside of the pores of the porous silicon oxide. The anode active material according to an example of the present invention has improved resistance to mechanical stress due to changes in volume by including multiple pores in the silicon oxide. Also, since the linear carbon material is coupled inside the pores, conductivity is not diminished when internal cracks form in the porous silicon oxide, and thus lifespan performance can be improved.

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Номер записи: 35

02-01-2019 дата публикации

그래핀 홀 소자, 이의 제조방법 및 이를 포함하는 반도체 소자

Номер: KR0101934644B1

Автор: 유정우, 진미진, 조준현, 박정민, 오인선

Принадлежит: 울산과학기술원

... 본 발명은, 기판; 상기 기판 상에 형성된 그래핀층; 상기 그래핀층 상의 적어도 일부분에 형성된 금속 클러스터 증착층; 및 상기 그래핀층의 적어도 일부분과 접하고, 전류를 공급하는 전극; 을 포함하고, 게이트 전압에 의한 스핀전류를 생성하는 것인, 그래핀 홀 소자, 이의 제조방법 및 이를 포함하는 스핀 홀 효과의 반도체 소자에 관한 것이다.

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Номер записи: 36

13-07-2017 дата публикации

리튬이차전지의 양극 형성용 조성물, 그리고 이를 이용하여 제조한 양극 및 리튬이차전지

Номер: KR0101757964B1

Автор: 박지혜, 오송택, 김용준, 유정우

Принадлежит: 주식회사 엘지화학

... 본 발명은 양극활물질, 도전재 및 바인더를 포함하는 리튬이차전지의 양극 형성용 조성물에 있어서, 상기 양극활물질은 조성물 총 중량에 대하여 90중량% 이상 포함되고, 상기 도전재는 하기 수학식 1에 따른 입자크기 분포비 조건을 충족하는 입자 크기를 가지며, 또 상기 도전재와 바인더는 0.6 내지 1.2의 혼합중량비(도전재/바인더의 비)로 포함되는 양극 형성용 조성물, 그리고 이를 이용하여 제조한 양극 및 리튬이차전지를 제공한다. [수학식 1] 2.4≤(D90-D10)/D50≤3 본 발명에 따른 리튬이차전지의 양극 형성용 조성물은, 조성물내 양극활물질, 바인더 및 도전재가 균일 분산되고, 또 양극활물질간의 공극 사이 바인더의 침투가 방지되어, 이를 이용한 양극 제조시 감소된 내부 저항 및 향상된 접착력을 나타낼 수 있다.

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Номер записи: 37

29-06-2016 дата публикации

Electrode active material for secondary battery

Номер: KR0101634843B1

Автор: 이용주, 강윤아, 이미림, 유정우, 김제영

Принадлежит: 주식회사 엘지화학

... 본 발명은 이차전지용 전극 활물질에 관한 것으로, 더욱 구체적으로 내부에 리튬이 분산되고, 표면에 탄소가 피복된 다공성 규소 산화물 복합체를 포함하는 전극 활물질 및 다공성 규소 산화물 입자 표면에 탄소를 피복하고, 상기 입자를 리튬 전구체와 혼합한 후 열처리하는 것을 포함하는 다공성 규소 산화물 복합체의 제조방법에 관한 것이다.

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Номер записи: 38

30-04-2018 дата публикации

다공성 실리콘을 포함하는 이차전지용 음극 활물질 및 이를 포함하는 리튬 이차전지

Номер: KR0101852762B1

Автор: 엄인성, 유정우, 권지윤, 김제영, 김석구, 김은경, 하회진

Принадлежит: 주식회사 엘지화학

... 본 발명은 다공성 실리콘을 포함하는 이차전지용 음극 활물질 및 이를 포함하는 리튬 이차전지에 관한 것으로서, 상세하게는, 공극률이 80% 이하인 다공성 실리콘(Si)을 포함하고 있는 것을 특징으로 하는 이차전지용 음극 활물질 및 이를 포함하는 이차전지를 제공한다.

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Номер записи: 39

31-05-2019 дата публикации

CATHODE SLURRY COMPOSITION FOR SECONDARY BATTERY, AND CATHODE FOR SECONDARY BATTERY AND SECONDARY BATTERY PRODUCED BY USING SAME

Номер: WO2019103526A1

Автор: YOO, Jung Woo, SHIM, Hye Lim, LIM, Jun Muk

Принадлежит:

The present invention relates to a cathode slurry composition for a secondary battery, and a cathode and a secondary battery produced by using the same, the cathode slurry composition for a secondary battery comprising: a cathode active material; a carbon-based conductive material having a specific surface area (BET) of 100 to 200 m2/g; a binder; and a nitrile-based copolymer which has an electrolyte swelling degree defined by formula (1) below of 200% or lower, and which does not contain a functional group other than a cyano group. Formula (1): electrolyte swelling degree (%) = {(W1-W0)/W0}×100. In formula (1), W0 is the initial weight of a polymer film produced from the nitrile-based copolymer, and W1 is the weight of the polymer film measured after storing the polymer film in an electrolyte at 60℃ for 48 hours.

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Номер записи: 40

20-06-2018 дата публикации

MULTI-PURPOSE GLASSES

Номер: KR1020180066958A

Автор: YOO, JEONG WOO

Принадлежит:

The present invention relates to a multi-purpose glasses including a color lens, a voice recognition device, and a communication device. Eyes will get more dazzling when wearing glasses before the retina is completely grown. Since it is inconvenient to use glasses and sunglasses together, the present invention propose the combination of glasses and sunglasses. The glasses are equipped with a communication function for convenience. A small light is turned on at night to allow a user to see better. The present invention can be used as glasses in normal time and automatically converted into the sunglasses when light becomes strong. Since the small light can be turned on at night, a user may see brightly when the user is outside at night. The glasses are equipped with a voice recognition device to recognize phone numbers and the user can make a call based on the phone numbers by using a communication device installed at a lateral side of a glasses frame. Thus, it is not necessary to use the ...

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Номер записи: 41

18-01-2018 дата публикации

BINDER FOR SECONDARY BATTERY ELECTRODE, COMPOSITION COMPRISING SAME FOR SECONDARY BATTERY ELECTRODE, AND SECONDARY BATTERY USING SAME

Номер: WO2018012881A1

Автор: KIM, Young Jae, RHO, Ye Cheol, YOO, Jung Woo, PARK, Jun Soo

Принадлежит:

The present invention relates to a binder for a secondary battery electrode, a composition comprising the same for a secondary battery electrode, and a secondary battery using the same, wherein the binder comprises a copolymer of polyvinyl alcohol (PVA) and ionized substituted acrylate. The binder has excellent electrode adhesive strength, and can prevent deformation of an electrode due to expansion and contraction of an electrode active material, improve charge/discharge life characteristics, and further simplify the manufacturing process.

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Номер записи: 42

15-08-2019 дата публикации

POSITIVE ELECTRODE, AND SECONDARY BATTERY COMPRISING POSITIVE ELECTRODE

Номер: WO2019156461A1

Автор: YOO, Jung Woo, KIM, Ye Lin, KIM, Tae Gon

Принадлежит:

The present invention relates to a positive electrode and a secondary battery, the positive electrode comprising a current collector and a positive electrode active material layer which is disposed on the current collector, wherein the positive electrode active material layer comprises a positive electrode active material, a binder and multi-walled carbon nanotubes, wherein the average length of the multi-walled carbon nanotubes is 1㎛ to 2㎛, and the standard deviation of the lengths of the multi-walled carbon nanotubes is 0.5㎛ or less.

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Номер записи: 43

03-09-2015 дата публикации

BATTERY CELL COMPRISING CIRCUMFERENTIAL SURFACE SEALING PART HAVING SEALING LINE, AND BATTERY CELL SEALING DEVICE FOR PRODUCING SAME

Номер: WO2015130017A1

Автор: YOO, Jung Woo, UHM, In Sung, KIM, Je Young

Принадлежит:

As described above, provided is a battery cell according to the present invention having an electrode assembly mounted in a battery case of a laminate sheet comprising a resin layer and a metal layer, having a thermal fusion sealing part (outer circumferential surface sealing part) in the battery case, for sealing the battery case, formed on the outer circumferential surface of an accommodation part in which the electrode assembly is mounted, and is characterized by: electrode terminals positioned at an upper-end sealing part, a lower-end sealing part or the upper-end and lower-end sealing parts; two or more sealing lines spaced apart so as to be parallel and formed on at least one of both side-surface sealing parts adjacent to the upper-end or lower-end sealing part; the sealing lines continuously formed in the longitudinal direction of the battery case from the outer circumferential end portion of the upper-end sealing part to the outer circumferential end portion of the lower-end sealing ...

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Номер записи: 44

05-06-2014 дата публикации

ANODE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: WO2014084635A1

Автор: YOO, Jung Woo, KWON, Won Jong, HWANG, Eui Yong, LEE, Kil Sun, KIM, Je Young, LEE, Yong Ju

Принадлежит:

The present invention relates to anode material and a method for manufacturing same, the anode material comprising: carbon particles; silicon nanowires grown on the carbon particles; and a carbon coating layer on the surfaces of the carbon particles and the silicon nanowires. By utilizing the anode material according to the present invention on an anode of a lithium secondary battery, the conductivity thereof is improved, in addition to increasing the strength of the physical bonds between the carbon particles and silicon nanowires, thereby lengthening the service life of the battery.

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Номер записи: 45

04-09-2015 дата публикации

BATTERY CELL INCLUDING OUTER CIRCUMFERENTIAL SEALING PART WITH SEALING LINE, AND BATTERY CELL SEALING DEVICE FOR MANUFACTURING SAME

Номер: KR1020150101551A

Автор: YOO, JUNG WOO, UHM, IN SUNG, KIM, JE YOUNG

Принадлежит:

As described, in a battery cell according to the present invention, an electrode assembly is mounted on a battery case of a laminate sheet including a resin layer and a metal layer. A thermal fusion sealing part (outer circumferential sealing part) for sealing the battery case on the outer circumference of a receiving unit mounting the electrode assembly is formed in the battery case. Electrode terminals are located on a top sealing part or a bottom sealing part. Two or more sealing lines which are separated in parallel from each other are formed on at least one of both lateral sealing parts which are adjacent to the top or bottom sealing parts. The sealing lines are continuously formed from the outer end of the top sealing part to the outer end of the bottom sealing part in the longitudinal direction of the battery case. The outer circumferential sealing part on which the sealing lines are formed is bent between the sealing lines within a range of 30 to 180 degrees. COPYRIGHT KIPO 2015 ...

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Номер записи: 46

12-03-2020 дата публикации

NEGATIVE ELECTRODE AND SECONDARY BATTERY COMPRISING SAME

Номер: WO2020050661A1

Автор: KIM, Young Jae, YOO, Jung Woo

Принадлежит:

The present invention relates to a negative electrode comprising a current collector and a negative electrode active material layer on the current collector, wherein the negative electrode active material layer comprises: a negative electrode active material; a conductive material; and a binder, wherein the negative electrode active material comprises silicon particles having an average particle diameter (D50) of 4 µm to 10 µm, the conductive material comprises carbon nanotubes and a graphitic conductive material, and the binder comprises a copolymer including polyvinyl alcohol-derived units and ionized substituted acrylate-derived units.

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Номер записи: 47

13-04-2017 дата публикации

METHOD FOR MEASURING DISTRIBUTION OF BINDER IN ELECTRODE

Номер: WO2017061830A1

Автор: LEE, Taek Soo, YOO, Jung Woo, KIM, Je Young

Принадлежит:

The present invention relates to a method for measuring the distribution of a binder in an electrode and, specifically, provides a method for measuring the distribution of a binder in an electrode, comprising the steps of: (step 1) measuring the thickness of an electrode having an active material layer, which comprises an active material, a conductive material and a binder and is formed on a current collector; (step 2) carrying out fixing such that the active material layer of the electrode comes into contact with a substrate; (step 3) attaching a tape, to be removed, to the current collector of the electrode, and then measuring adhesive strength and the electrode thickness after removal while removing the tape, to be removed, and the current collector together; (step 4) attaching a tape, to be removed, onto the active material layer from which the current collector is removed, and then measuring adhesive strength and electrode thickness after removal while removing the tape, to be removed ...

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Номер записи: 48

14-05-2018 дата публикации

NEGATIVE ELECTRODE AND SECONDARY BATTERY INCLUDING SAME

Номер: KR1020180050131A

Автор: JEONG, KWANG HO, RHO, YE CHEOL, KIM, JE YOUNG, YOO, JUNG WOO

Принадлежит:

The present invention relates to a negative electrode and a secondary battery including the same. To this end, the negative electrode comprises: a carbon-based particle whose oxygen content is 700-1700 mg/kg; and carboxymethyl cellulose in which a degree of substitution of hydroxyl groups by a functional group A is 0.9-2.0. The functional group A includes an active material layer containing at least one of -CH_2CO_2Na and -CH_2CO_2H. COPYRIGHT KIPO 2018 ...

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Номер записи: 49

05-03-2018 дата публикации

METHOD FOR MANUFACTURING CATHODE

Номер: KR1020180021529A

Автор: KIM YOUNG JAE, RHO YE CHEOL, YOO JUNG WOO

Принадлежит:

The present invention provides a method for solving a problem of uneven dispersion of a high loading cathode and enhancing adhesive strength between a cathode collector and a cathode active material layer, comprising the following steps: (S1) a step of manufacturing a cathode paste having a solid powder concentration of 90-99% by dispersing a cathode active material, a polymer binder and a conductive material in a water-based solvent; (S2) a step of manufacturing a cathode sheet having a loading of 500-1500 mg / 25 cm^2 from the cathode paste; (S3) a step of stacking the cathode sheet on one surface of the cathode collector; and (S4) a step of manufacturing a cathode by rolling the cathode collector stacked with the cathode sheet. COPYRIGHT KIPO 2018 (AA) Comparative example (BB) Example 1 (CC) Example 2 ...

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Номер записи: 50

05-06-2014 дата публикации

ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Номер: WO2014084678A1

Автор: LEE, Yong-Ju, KANG, Yoon-Ah, KIM, Je-Young, CHOI, Seung-Youn, LEE, Mi-Rim, JUNG, Hye-Ran, YOO, Jung-Woo

Принадлежит:

An anode active material, according to the present invention, is an anode active material formed from silicon particles, and the anode active material includes at least one silicon particle among silicon, a silicon oxide and a silicon alloy, wherein the outer shape of the silicon particle is a polyhedron. The present invention provides an electrode active material having high capacity and excellent lifespan wherein the lifespan is a problem when using the anode active material formed from silicon, and a lithium secondary battery including the same.

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Номер записи: 51

04-12-2014 дата публикации

POROUS SILICON-BASED NEGATIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: WO2014193124A1

Автор: LEE, Yong Ju, LEE, Mi Rim, YOO, Jung Woo, KIM, Je Young

Принадлежит:

Provided are a porous silicon-based negative electrode active material comprising: crystalline silicon (Si) particles; and multiple pores in the surface of the crystalline Si particles or the surface and the interior thereof, wherein at least one face of the crystal face of at least a portion of the multiple pores comprises face <110>, and a method for preparing the same. The porous silicon-based negative electrode active material of the present invention efficiently controls volume expansion that occurs when charging and discharging a lithium secondary battery by having the volume expansion concentrated at the pores rather than the exterior of the negative electrode active material, and is thus capable of improving the lifespan characteristic of the secondary battery.

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Номер записи: 52

06-04-2018 дата публикации

SURFACE COATED POROUS SILICON-BASED NEGATIVE ELECTRODE ACTIVE MATERIAL AND PRODUCING METHOD THEREOF

Номер: KR1020180035752A

Автор: LEE YONG JU, LEE MI RIM, YOO JUNG WOO, KIM EUN KYUNG

Принадлежит:

According to one embodiment of the present invention, provided is a negative electrode active material comprising: a porous silicon-based particle comprising a plurality of pores; and a spaced part which comprises a carbon coating layer on the surface of the porous silicon-based particle, wherein the carbon coating layer is formed by covering the porous silicon-based particle, and includes a portion separated between the carbon coating layer and the porous silicon-based particles. The negative electrode active material according to one embodiment of the present invention has excellent electrical conductivity, wherein the carbon coating layer is formed by completely covering the porous silicon-based particle, and is uniformly reacted during charging and discharging. In addition, volume expansion of the negative electrode active material is sufficient by the spaced part, the pores contained in the negative electrode active material, and thus the performance of a secondary battery can be further ...

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Номер записи: 53

27-05-2010 дата публикации

METHOD FOR PREPARING POLYOL ESTER

Номер: WO2010058918A3

Автор: YOO, Jeong Woo, JANG, Hae Reun, HYOUNG, Hee Jun

Принадлежит:

The present invention relates to a method for preparing polyol ester. The method comprises the steps of: reacting a first reactant with a second reactant in an equivalent ratio of 1:1 – 10:1 at a temperature of 100 - 350℃ under a pressure of 1 – 200 Torr for 0.1 – 10 hours in the presence of a solid catalyst in order to obtain a product containing polyol ester; removing fatty acids or fatty acid alkyl esters from the product; and removing the solid catalyst from the product. The first reactant comprises at least one of pure fatty acids, fatty acid alkyl esters, and a mixture of pure fatty acids and fatty acid alkyl esters, and the second reactant is polyol. The solid catalyst comprises at least one of oxides, carbonates, and hydroxides of any kind selected from magnesium (Mg), zinc (Zn), titanium (Ti), manganese (Mn), vanadium (V), beryllium (Be), copper (Cu), zirconium (Zr), strontium (Sr), tin (Sn), and barium (Ba). The invention provides a method for preparing high purity polyol ester ...

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Номер записи: 54

27-05-2010 дата публикации

CERAMIC CATALYST USED IN MANUFACTURE OF FATTY ACID ALKYL ESTERS AND METHOD FOR PREPARING HIGH PURITY FATTY ACID ALKYL ESTERS USING THE SAME

Номер: WO2010058917A3

Автор: YOO, Jeong Woo, JANG, Hae Reun, HYOUNG, Hee Jun

Принадлежит:

The present invention relates to a catalyst used in the manufacture of fatty acid alkyl esters and a method for preparing fatty acid alkyl esters using the same. The invention provides a high hardness solid ceramic metal catalyst obtained by mixing and sintering 0wt% - 80wt% active catalyst material with a support material, wherein the support material is a silica alumina that is a mixed metal oxide and the active catalyst material is at least one of oxides, carbonates, and hydroxides of any kind selected from magnesium (Mg), calcium (Ca), zinc (Zn), titanium (Ti), manganese (Mn), vanadium (V), beryllium (Be), copper (Cu), zirconium (Zr), strontium (Sr), tin (Sn), and barium (Ba). In addition, the invention provides a method for preparing fatty acid alkyl esters by performing transesterification and esterification of animal and vegetable oils and alcohols in the state where the ceramic metal catalyst is fixed within a reactor without processes for removing and purifying the catalyst.

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Номер записи: 55

19-05-2017 дата публикации

NEGATIVE ELECTRODE SLURRY FOR SECONDARY BATTERY TO IMPROVE DISPERSIBILITY AND REDUCE RESISTANCE, AND NEGATIVE ELECTRODE COMPRISING SAME

Номер: KR1020170055359A

Автор: YOO, JUNG WOO, CHO, HYUNG SUK, RHO, YE CHEOL, WOO, KYUNG HWA, JEONG, KWANG HO, KIM, JE YOUNG

Принадлежит:

The present invention relates to a negative electrode slurry for a secondary battery and a negative electrode comprising the same. The negative electrode slurry for a secondary battery improves dispersibility of a negative electrode active material by increasing the adsorption amount of CMC on the negative electrode active material through controlling physical properties such as substitution degree or molecular weight of CMC, increases solid content of the slurry by decreasing the mixed amount of the CMC, and reduces resistance of a battery. COPYRIGHT KIPO 2017 ...

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Номер записи: 56

07-06-2016 дата публикации

COMPOSITION FOR FORMING CATHODE FOR LITHIUM SECONDARY BATTERY, AND CATHODE AND LITHIUM SECONDARY BATTERY MANUFACTURED USING SAME

Номер: KR1020160063894A

Автор: PARK, JI HYE, OH, SONG TAEK, KIM, YONG JUN, YOO, JUNG WOO

Принадлежит:

The present invention provides a composition for forming a cathode for a lithium secondary battery, which contains a cathode active material, a conductive material and a binder, wherein the cathode active material is contained in an amount of 90 wt% or more based on a total weight of the composition, and the conductive material has a particle size satisfying a particle size distribution ratio condition according to the following equation 1, 2.4 <= (D_(90)-D_(10)) / D_(50) <= 3, and also the conductive material and the binder are contained at a mixing weight ratio (conductive material/binder ratio) of 0.6-1.2. The present invention further provides a cathode and lithium secondary battery manufactured using the composition. In the composition for the lithium secondary battery cathode according to the present invention, the cathode active material, the binder and the conductive material are uniformly dispersed in the composition, and penetration of the binder into the pores of the cathode ...

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Номер записи: 57

09-01-2019 дата публикации

셀룰로오스 기공체를 포함한 음극 및 이를 포함하는 이차전지

Номер: KR1020190003075A

Автор: 정광호, 김제영, 유정우

Принадлежит:

... 본 발명은 하이 로딩 음극을 갖는 리튬 이차전지에 있어서, 리튬 이온의 확산 저항을 낮추고 이를 통해서 충/방전시 방전 용량 및 사이클 특성을 개선하고자 하는 것으로서, 이를 위해서 음극에 비수계성 전해액에 스웰링되지 않는 다공성 고분자를 추가하였다. 이를 통해 리튬 이온의 확산 저항을 낮추고 이를 통해서 충/방전시 방전 용량 및 사이클 특성을 개선하는 효과가 있다.

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Номер записи: 58

08-05-2014 дата публикации

POROUS COMPLEX, AND METHOD FOR PREPARING SAME

Номер: WO2014069902A1

Автор: YOO, Jung Woo, LEE, Yong Ju, KANG, Yoon Ah, LEE, Mi Rim, KIM, Je Young

Принадлежит:

The present invention relates to a porous complex and to a method for preparing same, wherein the porous complex is characterized by being expressed by the following chemical formula 1, and having a porosity of 5% to 90%. : MOx. In said formula 1, M and x are the same as disclosed in the specification. According to the present invention, the initial efficiency of a secondary battery can increase by controlling the molar ratio of oxygen (x) to the molar ratio of a (metalloid) metal in the porous complex. Also, since the porous complex satisfies porosity conditions, the rate of change in the thickness of an electrode, which occurs during the charging and discharging of the secondary battery, can decrease and the life span can be enhanced.

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Номер записи: 59

23-07-2020 дата публикации

ANODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: WO2020149682A1

Автор: KIM, Young Jae, YOO, Jung Woo

Принадлежит:

The present invention relates to an anode and a lithium secondary battery comprising same, the anode comprising: a conductive material for an anode; a silicon-based active material; and an aqueous binder, wherein the conductive material for an anode comprises a first conductive material having a specific surface area of 250-1000 ㎡/g, a second conductive material having a specific surface area of 55-70 ㎡/g, and a third conductive material having a specific surface area of 15-20 ㎡/g.

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Номер записи: 60

12-01-2018 дата публикации

NEGATIVE ELECTRODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: KR1020180004426A

Автор: JEONG, KWANG HO, RHO, YE CHEOL, YOO, JUNG WOO, KIM, JE YOUNG

Принадлежит:

The present invention relates to a negative electrode comprising an active material layer which contains carbon-based particles having an oxygen content of 700 to 1,700 mg/kg, and to a secondary battery comprising the negative electrode. An objective of the present invention is to provide a negative electrode in which the weight of an active material is high in the negative electrode, and the adhesion force between the active material and a current collector and the adhesion force between active materials can be ensured. COPYRIGHT KIPO 2018 ...

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Номер записи: 61

06-01-2016 дата публикации

SURFACE COATED POROUS SILICON-BASED NEGATIVE ELECTRODE ACTIVE MATERIAL AND PRODUCING METHOD THEREOF

Номер: KR1020160001481A

Автор: LEE, YONG JU, LEE, MI RIM, YOO, JUNG WOO, KIM, EUN KYUNG

Принадлежит:

According to one embodiment of the present invention, provided is a negative electrode active material comprising: a porous silicon-based particle comprising a plurality of pores; and a spaced part which comprises a carbon coating layer on a surface of the porous silicon-based particle, wherein the carbon coating layer is formed by covering the porous silicon-based particle, and is between the carbon coating layer and the porous silicon-based particles. The negative electrode active material according to one embodiment of the present invention has excellent electrical conductivity, wherein the carbon coating layer is formed by completely covering the porous silicon-based particle, and is uniformly reacted during charging and discharging. In addition, volume expansion of the negative electrode active material is sufficient by the spaced part, the pores contained in the negative electrode active material, and thus the performance of a secondary battery can be further improved. COPYRIGHT KIPO ...

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Номер записи: 62

11-10-2018 дата публикации

BINDER COMPOSITION FOR SECONDARY BATTERY, ELECTRODE FOR SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY HAVING SAME

Номер: KR1020180111617A

Автор: YOON, JI HEE, YOO, JUNG WOO, KIM, JE YOUNG

Принадлежит:

The present invention relates to a binder composition for a secondary battery, and a lithium secondary battery cathode and a lithium secondary battery having the same, comprising: (A) a unit derived from a vinyl-based monomer; (B) a unit derived from a conjugated diene-based monomer or a conjugated diene-based polymer; (C) at least one unit selected from a group consisting of units derived from a (meta)acrylic acid ester-based monomer; and (D) a copolymer binder including units derived from a water-soluble polymer. Wherein the copolymer binder has a wet modulus of at least 0.02 MPa. COPYRIGHT KIPO 2018 (AA) Comparative example 3 (BB) Comparative example 4 (CC) Example 4 ...

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Номер записи: 63

20-08-2018 дата публикации

NEGATIVE ELECTRODE SLURRY AND NEGATIVE ELECTRODE USING SLURRY

Номер: KR1020180092520A

Автор: RHO, YE CHEOL, JEONG, KWANG HO, KIM, JE YOUNG, YOO, JUNG WOO, YOON, JI HEE

Принадлежит:

The present invention relates to negative electrode slurry in which a mixture, composed of a negative electrode active material, a water-based binder, and a viscosity agent, is dispersed in a water-based solvent, in an attempt to improve adhesiveness in a negative electrode while increasing dispersibility of the negative electrode slurry. The negative electrode slurry contains sodium ions in a predetermined range of concentration, and the negative electrode produced therefrom has excellent electrode adhesiveness and resistance. COPYRIGHT KIPO 2018 (AA) Example 3 (BB) Example 4 (CC) Example 6 (DD) Example 7 (EE) Example 8 ...

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Номер записи: 64

08-03-2017 дата публикации

FLEXURAL DEVICE

Номер: KR1020170025533A

Автор: LEE, TAEK SOO, NOH, SUK IN, KIM, JI YEON, KIM, JE YOUNG, CHOY, SANG HOON, YOO, JUNG WOO

Принадлежит:

The present invention relates to a flexural device measuring a flexural force of a specimen, comprising: a support member in which the specimen is placed on an upper surface, and a flexural groove of which a width becomes narrower along where a thickness direction is formed; and a flexural member provided on an upper portion of the support member, and inserted into the flexural groove in a state of pressurizing the specimen to bend the specimen. Moreover, an angle bent as the specimen is inserted from an entrance to a floor of the flexural groove by the flexural member is gradually increased. COPYRIGHT KIPO 2017 ...

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Номер записи: 65

03-02-2016 дата публикации

Porous composite and manufacturing method thereof

Номер: KR0101591571B1

Автор: 유정우, 이용주, 강윤아, 이미림, 김제영

Принадлежит: 주식회사 엘지화학

... 본 발명은 하기 화학식 1로 표시되고, 공극율이 5% 내지 90%인 것을 특징으로 하는 다공성 복합체 및 이의 제조방법에 관한 것이다: <화학식 1> MOx 상기 식에서, M은 Si, Sn, Al, Sb, Bi, As, Ge, Pb, Zn, Cd, In, Ti, Ga 및 이들의 합금으로 이루어진 군으로부터 선택되는 적어도 하나의 원소이고, 0.5 Подробнее

Номер записи: 66

22-01-2018 дата публикации

BINDER FOR SECONDARY BATTERY ELECTRODES, COMPOSITION FOR SECONDARY BATTERY ELECTRODES INCLUDING SAME, AND SECONDARY BATTERY USING SAME

Номер: KR1020180007335A

Автор: KIM, YOUNG JAE, RHO, YE CHEOL, YOO, JUNG WOO, PARK, JUN SOO

Принадлежит:

The present invention relates to a binder for secondary battery electrodes, a composition for secondary battery electrodes including the same, and a secondary battery using the same. The binder contains polyvinyl alcohol (PVA) and a copolymer of ionized and substituted acrylate. The binder shows excellent electrode attachability, prevents deformation of electrodes due to expansion and contraction of electrode active materials, and improves charge/discharge lifespan properties while enabling simplification of production processes. COPYRIGHT KIPO 2018 (AA) Comparative example 3 (BB) Example 3 (CC) Example 4 (DD) Example 5 (EE) Comparative example 2 ...

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Номер записи: 67

23-05-2018 дата публикации

ELECTRODE FOR SECONDARY BATTERY, MANUFACTURING METHOD THEREOF, AND SECONDARY BATTERY INCLUDING SAME

Номер: KR1020180053608A

Автор: YOO JUNG WOO, LEE HYEOK MOO, PARK JI HYE, OH SONG TAEK

Принадлежит:

According to the present invention, an electrode for a secondary battery includes: an electrode active material; a binder; and an electrode compound including a conductive material of which BET specific surface area is 50-500 m^2/g. Among multiple pixels obtained by imaging the cross-section of the electrode compound and dividing the same, a pixel, whose 100% is filled with conductive materials, is considered as a coagulated pixel. When the number of counted coagulated pixels is calculated as a coagulation degree of the conductive materials, the coagulation degree of the conductive materials in the electrode compound has a standard deviation of less than 3.0. The electrode compound has low electrode resistance by having the conductive materials equally distributed, and thus, the present invention is capable of improving output and lifespan properties of a lithium secondary battery applied with the compound. COPYRIGHT KIPO 2018 (AA) Cohesion value of a conductive material (BB) Conductive ...

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Номер записи: 68

11-06-2015 дата публикации

POROUS SILICON BASED NEGATIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR PRODUCING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Номер: KR1020150064692A

Автор: LEE, MI RIM, YOO, JUNG WOO, KIM, EUN KYUNG, LEE, YONG JU, LEE, HAN HO, YOON, JI HYUN, BANG, BYOUNG MAN, LEE, CHANG RAE, JEONG, IL KYO, LEE, MI KYEONG

Принадлежит:

The present invention provides: a porous silicon based negative electrode active material including porous SiO_x particles (0 <= x < 2) coated with an oxide film layer; a method for producing the same; and a lithium secondary battery including the same. The negative electrode active material includes the oxide film layer formed on the porous SiO_x particles and thus can reduce reactivity between the negative electrode active material and electrolyte. Therefore, electrical short circuit can be minimized in the electrode. Moreover, a number of pores are included in the surface or the inside of the SiO_x particles. Accordingly, the porous silicon based negative electrode active material can reduce a rate of thickness change of the electrode, occurring when a secondary battery is charged and discharged, and can increase lifespan properties. COPYRIGHT KIPO 2015 ...

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Номер записи: 69

02-09-2015 дата публикации

BATTERY CELL COMPRISING HOLE

Номер: KR1020150099896A

Автор: YOO, JUNG WOO, KIM, JE YOUNG, CHUNG, GEUN CHANG

Принадлежит:

The present invention provides a battery cell, which comprises: an electrode assembly with a laminated structure including a positive electrode, a negative electrode, and a separation membrane interposed between the positive electrode and the negative electrode, and installed on a storage unit of a battery case; at least one hole from the battery case to the positive electrode or the negative electrode formed on the electrode assembly; and a window formed of a transparent member and formed on the portion of the battery case corresponding to the hole. COPYRIGHT KIPO 2015 ...

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Номер записи: 70

11-10-2018 дата публикации

METHOD FOR PREPARING ELECTRODE FOR LITHIUM SECONDARY BATTERY, ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: KR1020180111322A

Автор: JEONG, KWANG HO, SEOL, JONG HEON, RHO, YE CHEOL, KIM, JE YOUNG, YOO, JUNG WOO

Принадлежит:

The present invention relates to a method for preparing an electrode for a lithium secondary battery, which improves a dissolution process of a binder hard to dissolve and disperse by comprising two following steps: (1) wetting the binder with a solvent; and (2) dispersing the binder in a solvent, to an electrode for a lithium secondary battery, and to a lithium secondary battery comprising the same. COPYRIGHT KIPO 2018 (AA) Embodiment 3_ascending (BB) Embodiment 3_descending ...

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Номер записи: 71

19-10-2016 дата публикации

LITHIUM ION SECONDARY BATTERY COMPRISING REFERENCE ELECTRODE

Номер: KR1020160121179A

Автор: KIM, YONG JUN, YOO, JUNG WOO, OH, SONG TAEK

Принадлежит:

The present invention relates to a stack and folding-type electrode assembly, designed to measure a potential of each electrode included in the electrode assembly in an in-situ state in a separate manner. According to the present invention, the stack and folding-type electrode assembly has a reference electrode inserted in each electrode layer, and can measure the potential of the electrode (positive electrode or negative electrode) on a specific position. The stack and folding-type electrode assembly analyzes the degeneration of the battery, predicts the charging and discharging operation, and has significant effects in monitoring the battery charging state. COPYRIGHT KIPO 2016 ...

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Номер записи: 72

05-02-2015 дата публикации

ANODE ACTIVE MATERIAL FOR SECONDARY BATTERY HAVING IMPROVED LIFESPAN

Номер: WO2015016531A1

Автор: UHM, In Sung, YOO, Jungwoo, KIM, Je Young, HAH, Hoe Jin, KWON, Ji Yoon

Принадлежит:

The present invention relates to an anode active material for a secondary battery having an improved lifespan, and specifically, provides an anode active material, for a secondary battery, comprising silicon (Si), amorphous hard carbon, or low-crystalline soft carbon.

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Номер записи: 73

05-03-2020 дата публикации

DIRECT CURRENT RELAY

Номер: WO2020045844A1

Автор: YOO, Jungwoo

Принадлежит:

The present invention relates to a direct current relay and, more particularly, to a direct current relay including a mover assembly having improved support force with respect to a movable contactor. The direct current relay according to an embodiment of the present invention, comprising a pair of fixed contactors and a movable contactor which is moved up and down by an actuator to come into contact with or be separated from the pair of fixed contactors, comprises: a mover support disposed below the movable contactor and connected to the actuator by a shaft; a mover holder disposed above the movable contactor and fixed to the mover support; a contact pressure spring disposed between the movable contactor and the mover support to provide a contact pressure to the movable contactor; and a supporting pin installed to extend through the movable contactor and the mover holder.

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Номер записи: 74

10-05-2018 дата публикации

표면 코팅된 다공성 실리콘계 음극 활물질 및 이의 제조방법

Номер: KR0101856926B1

Автор: 이용주, 이미림, 유정우, 김은경

Принадлежит: 주식회사 엘지화학

... 본 발명의 일 실시예에 따르면, 다수의 기공을 포함하는 다공성 실리콘계 입자; 및 상기 다공성 실리콘계 입자의 표면에 탄소 코팅층을 포함하고, 상기 탄소 코팅층은 다공성 실리콘계 입자를 전부 덮어 형성되며, 상기 탄소 코팅층과 다공성 실리콘계 입자 사이에 이격된 부분을 포함하는 것을 특징으로 하는 음극 활물질을 제공한다. 본 발명의 일 실시예에 따른 음극 활물질은, 상기 탄소 코팅층이 다공성 실리콘계 입자 전체를 덮어 형성됨으로써 전기 전도도가 우수하며, 충방전시 반응이 균일하게 이루어질 수 있다. 또한, 상기 음극 활물질의 부피 팽창은 음극 활물질에 포함되는 상기 이격된 부분, 즉 기공에 의하여 충분히 흡입되므로, 이차전지의 성능이 더욱 향상될 수 있다.

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Номер записи: 75

05-10-2017 дата публикации

ANODE FOR SECONDARY BATTERY, MANUFACTURING METHOD THEREFOR, AND SECONDARY BATTERY COMPRISING SAME

Номер: WO2017171409A1

Автор: PARK, Jun Soo, YOON, Ji Hee, KIM, Je Young, YOO, Jung Woo

Принадлежит:

The present invention provides: an anode for a secondary battery; a manufacturing method therefor; and a secondary battery comprising the same, the anode comprising: an anode collector; a first anode active material layer located on the anode collector; and a second anode active material layer located on the first anode active material layer, wherein the ratio of the thickness of the first anode active material layer to the total thickness of the first and second anode active material layers is less than 0.5, the first anode active material layer comprises a styrene-butadiene rubber in which the total amount of a repeating unit having a styrene-derived structure and a repeating unit having a butadiene-derived structure is 50 wt% or more, and the second anode active material layer comprises a (meth)acrylate-based polymer, which comprises a repeating unit having a styrene-derived structure and a repeating unit having a (meth)acrylate-derived structure, such that the amount of the repeating ...

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Номер записи: 76

01-07-2016 дата публикации

Decoupler Assembly for Hydraulic Mount

Номер: KR0101632194B1

Автор: 유정우

Принадлежит: 지엠 글로벌 테크놀러지 오퍼레이션스 엘엘씨

... 본 발명은 상, 하 압력실을 구획하여 유체가 통과하는 좁은 오리피스를 제공하면서 상, 하 압력실의 유체 압력 변화에 대응하여 상하로 움직여서 진동을 감쇠하는 디커플러의 손상을 방지하고 내구성을 향상시킨 것이다. 본 발명에 따른 하이드로 마운트용 디커플러는, 내측의 격벽(102)의 외측으로 유체통로(104)가 형성되고, 유체통로(104)에는 하부 압력실과 통하는 제1 오리피스(108)가 형성되는 하형 노즐 판(100)과, 상기 하형 노즐 판(100)의 격벽(102) 내측에 설치되어 상, 하부 압력실의 압력 편차에 따라 상, 하로 탄성적으로 움직이는 압력응동밸브(200)와, 상기 하형 노즐 판(100)의 상면에 결합되고 상기 유체통로(104)와 상부 압력실을 통하도록 하는 제2 오리피스(302)가 형성되는 상형 노즐 판(300)을 포함하며; 상기 하형 노즐 판(100)은, 상기 압력응동밸브(200)의 외측 테두리 부분이 안착하도록 상기 격벽(102)의 내측 둘레로부터 내향 연장되는 안착 테두리부(106)를 구비하고, 상기 안착 테두리부(106)와 하형 노즐 판(100)의 원 중앙을 방사상으로 연결하는 탄성의 서포트 브리지(110)를 구비하며, 상기 탄성의 서포트 브리지(110)의 중앙의 교차부의 지지에 의해 상기 압력응동밸브(200)의 중앙부의 하향 팽창량이 제한되고, 상기 서포트 브리지(110)와 상기 안착 테두리부(106)의 조합에 의해 제1 연통공(112)이 제공되는 구조로 이루어진다.

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Номер записи: 77

05-03-2020 дата публикации

DIRECT CURRENT RELAY

Номер: WO2020045859A1

Автор: YOO, Jungwoo

Принадлежит:

The present invention relates to a direct current relay, and more specifically, to a direct current relay having a movable assembly with improved contact pressure. The direct current relay according to an embodiment of the present invention comprises a pair of fixed contacts, and a movable contact which is moved vertically by an electromagnetic force to contact or be separated from the pair of fixed contacts, wherein an upper yoke and a lower yoke are respectively provided on the upper and lower portions of the movable contact, a contact spring is provided on the lower portion of the lower yoke, and the lower yoke is pressed by the contact spring to move the movable contact.

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Номер записи: 78

28-02-2018 дата публикации

ELECTRODE FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PREPARING SAME

Номер: KR1020180020784A

Автор: YOO, JUNG WOO, PARK, JUN SOO, YOON, JI HEE, KIM, JE YOUNG

Принадлежит:

The present invention relates to an electrode for a lithium secondary battery to improve adhesion of the electrode by securing uniform distribution of a polymer binder even if a high loading electrode is used. The electrode for a lithium secondary battery comprises: an electrode current collector; and an electrode compound layer formed on the electrode current collector and including an electrode active material, a conductor and a polymer binder. The loading amount of the electrode compound layer is 250 mg/25cm^2 or more. The grain size (D50) of a complex formed as a plurality of electrode active material particles and the polymer binder are coupled is 1.5 to 8 times the grain size (D50) of the electrode active material. COPYRIGHT KIPO 2018 (AA) Example 1 (BB) Example 2 (CC) Comparative example 2 (DD) Adhesive strength (EE) Height relative to electrode thickness ...

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Номер записи: 79

04-01-2019 дата публикации

리튬이차전지 및 이의 제조방법

Номер: KR1020190001406A

Автор: 김영덕, 김동규, 유정우

Принадлежит:

... 본 발명은 건식 제조 제1 전극, 습식 제조 제2 전극, 상기 건식 제조 제1 전극과 습식 제조 제2 전극 사이에 개재된 세퍼레이터, 및 전해질을 포함하고, 상기 건식 제조 제1 전극이 제1 전극 활물질, 바인더 및 도전재를 포함하고, 상기 습식 제조 제2 전극이 제2 전극 활물질, 바인더 및 도전재를 포함하며, 상기 건식 제조 제1 전극의 계면저항이 상기 습식 제조 제2 전극의 계면저항 보다 크거나 같은 리튬 이차전지, 및 이의 제조방법을 제공한다. 본 발명에 따른 리튬 이차전지는 계면저항의 차이가 적은 두 전극을 포함함으로써 키네틱 밸런스를 확보하며, 이를 적용한 리튬 이차전지는 우수한 사이클 특성을 나타낼 수 있다.

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Номер записи: 80

18-04-2017 дата публикации

METHOD OF MEASURING DISTRIBUTION OF BINDER IN ELECTRODE

Номер: KR1020170042175A

Автор: LEE, TAEK SOO, YOO, JUNG WOO, KIM, JE YOUNG

Принадлежит:

The present invention relates to a method of measuring distribution of a binder in an electrode. More specifically, the present invention provides a method of measuring distribution of a binder in an electrode, comprising: a first step of measuring the thickness of an electrode having an active material layer including an active material, a conductive material and a binder formed on a current collector; a second step of fixing the active material layer such that the active material layer of the electrode is in contact with a substrate; a third step of attaching a tape for removal to the current collector of the electrode, and measuring adhesive strength and thickness of the electrode after removal while removing the tape for removal and the current collector together; a fourth step of attaching the tape for removal to the active material from which the current collector is removed, measuring the adhesive strength and the thickness of the electrode after removal while removing the tape for ...

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Номер записи: 81

27-05-2010 дата публикации

METHOD FOR PREPARING POLYOL ESTER

Номер: KR2010058918A2

Автор: YOO, Jeong Woo, JANG, Hae Reun, HYOUNG, Hee Jun

Принадлежит:

The present invention relates to a method for preparing polyol ester. The method comprises the steps of: reacting a first reactant with a second reactant in an equivalent ratio of 1:1 – 10:1 at a temperature of 100 - 350℃ under a pressure of 1 – 200 Torr for 0.1 – 10 hours in the presence of a solid catalyst in order to obtain a product containing polyol ester; removing fatty acids or fatty acid alkyl esters from the product; and removing the solid catalyst from the product. The first reactant comprises at least one of pure fatty acids, fatty acid alkyl esters, and a mixture of pure fatty acids and fatty acid alkyl esters, and the second reactant is polyol. The solid catalyst comprises at least one of oxides, carbonates, and hydroxides of any kind selected from magnesium (Mg), zinc (Zn), titanium (Ti), manganese (Mn), vanadium (V), beryllium (Be), copper (Cu), zirconium (Zr), strontium (Sr), tin (Sn), and barium (Ba). The invention provides a method for preparing high purity polyol ester ...

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Номер записи: 82

21-03-2018 дата публикации

POSITIVE ELECTRODE SLURRY COMPOSITION FOR SECONDARY BATTERY, AND POSITIVE ELECTRODE FOR SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Номер: KR1020180029718A

Автор: KIM, HAK YOON, SHIM, HYE LIM, RHO, YE CHEOL, KIM, JE YOUNG, YOO, JUNG WOO

Принадлежит:

The present invention relates to a positive slurry composition comprising: a lithium transition metal oxide containing nickel; and a copolymer binder including (i) a unit induced from nitrile-based monomer, (ii) a unit induced from alkylene oxide-based monomer and (iii) a unit induced from acrylate-based monomer, wherein the copolymer binder contains 5 wt% or less of the unit induced from monomer containing fluorine within a molecule with respect to the total weight of the copolymer binder. The positive slurry composition according to the present invention contains the binder including the unit induced from specific monomer and including 5 wt% or less of the unit induced from the monomer containing the fluorine within the molecule with respect to the total weight of the copolymer binder, thereby preventing gelation of the binder to enhance an adhesive force and to show stable electro-chemical performance even though the lithium transition oxide containing the nickel is contained. COPYRIGHT ...

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Номер записи: 83

07-02-2017 дата публикации

다공성 실리콘계 음극 활물질 및 이를 포함하는 리튬 이차전지

Номер: KR0101704103B1

Автор: 이미림, 김현철, 김은경, 이용주, 유정우

Принадлежит: 주식회사 엘지화학

... 본 발명은 다공성 실리콘계 입자; 및 탄소 입자를 포함하며, 상기 탄소 입자는 평균 입경이 서로 다른 미립(微粒) 탄소 입자 및 조립(組粒) 탄소 입자를 포함하는 것을 특징으로 하는 음극 활물질을 제공한다. 본 발명의 일 실시예에 따른 음극 활물질은, 다공성 실리콘계 입자, 및 평균 입경이 서로 다른 미립 및 조립 탄소 입자를 함께 포함함으로써, 다공성 실리콘계 입자와 탄소 입자와의 접촉성을 증가시킬 수 있고, 이로 인해 리튬 이차전지의 수명 특성을 더욱 향상시킬 수 있다.

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Номер записи: 84

26-01-2016 дата публикации

POROUS SILICON BASED ANODE ACTIVE MATERIAL, PREPARATION METHOD THEREOF, AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME

Номер: KR0101588954B1

Автор: 이용주, 이미림, 유정우, 김제영

Принадлежит: 주식회사 엘지화학

... 결정성 실리콘(Si) 입자를 포함하고, 상기 결정성 실리콘 입자의 표면, 또는 표면 및 내부에 다수의 공극을 포함하며, 상기 다수의 공극 중 적어도 일부의 공극의 결정면은 적어도 한 면이 <110>면을 포함하는 것을 특징으로 하는 다공성 실리콘계 음극 활물질 및 이의 제조방법을 제공한다. 본 발명의 다공성 실리콘계 음극 활물질은 리튬 이차전지의 충방전시 발생하는 부피 팽창을 음극 활물질의 외부보다 공극에 집중되도록 함으로써 부피 팽창을 효율적으로 제어하여 이차전지의 수명 특성을 향상시킬 수 있다.

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Номер записи: 85

05-03-2020 дата публикации

DIRECT CURRENT RELAY

Номер: WO2020045860A1

Автор: YOO, Jungwoo

Принадлежит:

The present invention relates to a direct current relay and, more specifically, to a direct current relay having a mover assembly having improved contact pressure. A direct current relay according to an aspect of the present invention, comprising: a pair of fixed contactors and a movable contactor which is moved up and down by an actuator to come into contact with or be separated from the pair of fixed contactors, comprises: a mover support disposed below the movable contactor and connected to the actuator by a shaft; a mover holder disposed above the movable contactor and fixed to the mover support; an upper yoke and a lower yoke disposed above and below the movable contactor to generate an electromagnetic force, respectively; and a contact pressure spring disposed between the lower yoke and the mover support, wherein the upper yoke and the lower yoke form a magnetic path to offset an electron repulsive force generated between the fixed contactors and the movable contactor.

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Номер записи: 86

07-12-2016 дата публикации

ELECTRODE MIXTURE, PREPARATION METHOD THEREOF, AND SECONDARY BATTERY COMPRISING SAME

Номер: KR1020160139240A

Автор: YOO, JUNG WOO, LEE, HYEOK MOO, PARK, JI HYE, OH, SONG TAEK

Принадлежит:

According to the present invention, an electrode mixture comprises: an electrode active material; a binder; and a conductive material. The cross section of the electrode mixture is imaged. The cohesion value of the conductive material in the electrode mixture with respect to the depth direction of the electrode mixture has a standard deviation of less than 3.0, wherein the cohesion value of the conductive material is computed by counting cohered pixels which are pixels 100% filled with the conductive material in a pixel among a plurality of partitioned pixels. The electrode mixture comprises uniformly distributed conductive material, and thus has low electrode resistance. Accordingly, the electrode mixture can improve output and lifespan characteristics of a lithium secondary battery using the electrode mixture. COPYRIGHT KIPO 2016 (AA) Cohesion value of a conductive material (BB) Conductive material (CC) Depth direction ...

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Номер записи: 87

27-05-2010 дата публикации

CERAMIC CATALYST USED IN MANUFACTURE OF FATTY ACID ALKYL ESTERS AND METHOD FOR PREPARING HIGH PURITY FATTY ACID ALKYL ESTERS USING THE SAME

Номер: KR2010058917A2

Автор: YOO, Jeong Woo, JANG, Hae Reun, HYOUNG, Hee Jun

Принадлежит:

The present invention relates to a catalyst used in the manufacture of fatty acid alkyl esters and a method for preparing fatty acid alkyl esters using the same. The invention provides a high hardness solid ceramic metal catalyst obtained by mixing and sintering 0wt% - 80wt% active catalyst material with a support material, wherein the support material is a silica alumina that is a mixed metal oxide and the active catalyst material is at least one of oxides, carbonates, and hydroxides of any kind selected from magnesium (Mg), calcium (Ca), zinc (Zn), titanium (Ti), manganese (Mn), vanadium (V), beryllium (Be), copper (Cu), zirconium (Zr), strontium (Sr), tin (Sn), and barium (Ba). In addition, the invention provides a method for preparing fatty acid alkyl esters by performing transesterification and esterification of animal and vegetable oils and alcohols in the state where the ceramic metal catalyst is fixed within a reactor without processes for removing and purifying the catalyst.

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Номер записи: 88

28-12-2017 дата публикации

음극 활물질 및 이의 제조 방법

Номер: KR0101813302B1

Автор: 이용주, 조래환, 이미림, 유정우, 김은경, 이성만, 함준식

Принадлежит: 주식회사 엘지화학, 강원대학교산학협력단

Si 및 MxSiy를 포함하는 코어부; 및 상기 코어부 상에 Si 및 다수의 기공을 포함하는 쉘부를 포함하고, 상기 쉘부 상에 탄소 코팅층을 포함하며, 상기 MxSiy에서, M은 2A, 3A, 4A족 원소 및 전이 금속으로 이루어진 군에서 선택되는 하나 이상의 원소이고, 1≤x≤4이며, 1≤y≤4인 것을 특징으로 하는 음극 활물질에 관한 것이다. 본 발명의 일 실시예에 따르면, 충방전시 음극 활물질의 부피 팽창을 최소화할 수 있고, 기계적 물성 강화는 물론, 충방전이 진행되면서 전극이 팽창된 후에도 우수한 전기 전도성을 부여할 수 있어, 리튬 이차전지의 성능을 더욱 향상시킬 수 있다.

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Номер записи: 89

07-12-2017 дата публикации

기준 전극(reference electrode)을 포함하는 리튬 이온 이차 전지

Номер: KR0101806416B1

Автор: 김용준, 유정우, 오송택

Принадлежит: 주식회사 엘지화학

... 본 발명은 는 전극 조립체에 포함된 각 전극의 전위를 인시튜(in-situ) 상태에서 개별적으로 측정할 수 있도록 고안된 스택 및 폴딩형 전극 조립체에 대한 것이다. 본원 발명에 따른 스택 및 폴딩형 전극 조립체는 각 전극층마다 기준 전극이 삽입되어 있어 특정 위치의 전극(음극 또는 양극)의 전위 측정이 가능하다. 이는 전지의 퇴화 분석 및 충방전 거동을 예측하며, 배터리 충전 상태를 모니터링 하는데 매우 효과적이다.

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Номер записи: 90

22-11-2017 дата публикации

CIRCUIT BOARD MANUFACTURING METHOD

Номер: KR1020170127639A

Автор: JUNG, DAE HYUK, HWANG, WON SIK, HYEON, JEONG MIN, JANG, YOUNG SIK, YOO, JUNG WOO, HAN, SANG WOOK

Принадлежит:

The present invention relates to a circuit board manufacturing method. The circuit board manufacturing method comprises: forming a gold seed layer for gold plating on a nickel layer by initially oxidizing and substituting a nickel surface by using a substitutional reduction type plating solution; and forming an immersion type electroless gold plating film by a reduction reaction in the same bath. Therefore, a metal corrosion problem is solved. COPYRIGHT KIPO 2017 ...

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Номер записи: 91

07-03-2019 дата публикации

REFRIGERATOR AND CONTROL METHOD THEREFOR

Номер: WO2019045306A1

Автор: KIM, Do-Hyung, YOO, Su-Cheol, YOO, Jung Woo, SEO, Kook Jeong, LEE, Chang-Hern, JEONG, Ha-Jin

Принадлежит:

The present invention relates to a refrigerator and a control method therefor and, more specifically, to a technology for preventing the temperature of a storage chamber from increasing by defrosting heat generated during a defrosting process, and for performing efficient refrigeration and freezing operations. The refrigerator according to one embodiment comprises: a main body; a first storage chamber and a second storage chamber which are provided inside the main body; a first evaporator provided in the first storage chamber so as to generate cold air; a second evaporator provided in the second storage chamber so as to generate cold air; a switching valve for supplying a refrigerant to the first evaporator and/or the second evaporator; and a control unit for generating a control signal, which controls the switching valve so as to distribute, according to a predetermined standard, the refrigerant supplied to the first evaporator and the refrigerant supplied to the second evaporator, and ...

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Номер записи: 92

29-04-2016 дата публикации

DECOUPLER FOR HYDRO MOUNT

Номер: KR1020160046383A

Автор: YU, JUNG WOO

Принадлежит:

The present invention is capable of improving durability and preventing damage to a decoupler reducing vibrations by moving up and down in response to a fluid pressure change in upper and lower pressure chambers while providing a narrow orifice for a fluid by dividing the upper and lower chambers. According to the present invention, a decoupler for hydro mount includes: a bottom nozzle panel (100) including a fluid passage (104), formed outside an inner partition (102), and a first orifice (108) formed in the fluid passage (104) and connected to the lower pressure chamber; a pressure response valve (200) installed inside the partition (102) of the bottom nozzle panel (100) to be elastically moved up and down according to a pressure deviation between the upper and lower pressure chambers; and a top nozzle panel (300) including a second orifice (302) combined with the upper surface of the bottom nozzle panel (100) and connecting the fluid passage (104) with the upper pressure chamber. The ...

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Номер записи: 93

07-09-2015 дата публикации

POROUS SILICON-BASED NEGATIVE ELECTRODE ACTIVE MATERIAL, MANUFACTURING METHOD THEREOF, AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Номер: KR1020150102713A

Автор: YOO, JUNG WOO, LEE, MI RIM, KIM, EUN KYUNG, LEE, YONG JU

Принадлежит:

According to one embodiment of the present invention, the present invention provides a porous silicon-based negative electrode active material comprising a crystalline silicon-based grain including a plurality of pores on the surface of the crystalline silicon-based grain or on the surface and the inside of the grain, wherein the pore wall thickness between one pore and another pore adjacent to the pore is 20 to 200 nm when measured on the surface. Also, the present invention provides a manufacturing method thereof. The porous silicon-based negative electrode active material according to one embodiment of the present invention may reduce mechanical stress caused by expansion and contraction of an electrode when a lithium secondary battery is charged or discharged, by adjusting the gap between the pores. Furthermore, lifetime properties of the lithium secondary battery may be further enhanced by allowing the volume expansion generating when the lithium secondary battery is charged or discharged ...

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Номер записи: 94

19-10-2015 дата публикации

Anode active material comprising Porous silicon oxide―carbon material composite and Preparation method thereof

Номер: KR0101560892B1

Автор: 유정우, 김제영, 이용주, 최승연, 강윤아, 이미림, 정혜란

Принадлежит: 주식회사 엘지화학

... 본 발명은 기공을 포함하는 다공성 규소 산화물 및 상기 다공성 규소 산화물의 표면, 기공 내부, 또는 표면 및 기공 내부에 코팅된 선형 탄소재를 포함하는 다공성 규소 산화물-탄소재 복합체를 포함하는 음극 활물질 및 이의 제조방법에 관한 것이다. 본 발명의 일 실시예에 따른 상기 음극 활물질은, 규소 산화물이 다수의 기공을 포함하여 부피 변화로 인한 기계적 스트레스에 대한 저항성이 향상될 수 으며, 다공성 규소 산화물에 내부 균열이 발생하더라도 기공 내부에 선형 탄소재가 결합되어 있어 도전성이 저하되지 않고, 수명 성능이 향상될 수 있다.

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Номер записи: 95

27-11-2015 дата публикации

NEGATIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: KR1020150133167A

Автор: LEE, YONG JU, KANG, YOON AH, KIM, JE YOUNG, YOO, JUNG WOO, LEE, MI RIM, JUNG, HYE RAN, CHOI, SEUNG YOUN

Принадлежит:

A negative active material, according to the present invention, is a negative active material formed from silicon particles, and the negative active material comprises at least one silicon particle of silicon, a silicon oxide and a silicon alloy, wherein the outer shape of the silicon particle is a polyhedron. The present invention provides an electrode active material having high capacity and excellent lifespan wherein the lifespan is a problem when using the negative active material formed from silicon, and a lithium secondary battery comprising the same. COPYRIGHT KIPO 2016 ...

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Номер записи: 96

08-06-2017 дата публикации

BINDER HAVING IMPROVED FUNCTIONS FOR SECONDARY BATTERY AND NEGATIVE ELECTRODE FOR SECONDARY BATTERY COMPRISING SAME

Номер: KR1020170062908A

Автор: YOO, JUNG WOO, PARK, JUN SOO, YOON, JI HEE, KIM, JE YOUNG

Принадлежит:

The present invention relates to a binder having improved functions for a secondary battery and a negative electrode for a secondary battery comprising the same. The present invention can provide a negative electrode for a secondary battery having reduced resistance on an electrode and improved electrode adhesion at the same time, by including a binder with an optimum composition ratio and the best battery performance in the same content, through adjusting a weight ratio of styrene-butadiene based rubber and acryl based rubber contained in the binder for a secondary battery. COPYRIGHT KIPO 2017 (AA) Comparative example 1 (BB) Comparative example 2 (CC) Example 1 (DD) Example 2 (EE) Comparative example 3 (FF) Comparative example 4 (GG) BD-ST content (wt%) ...

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Номер записи: 97

03-06-2015 дата публикации

NEGATIVE ELECTRODE ACTIVE MATERIALS FOR SECONDARY BATTERIES INCLUDING POROUS SILICON AND LITHIUM SECONDARY BATTERIES INCLUDING SAME

Номер: KR1020150059935A

Автор: UHM, IN SUNG, YOO, JUNG WOO, KWON, JI YOON, KIM, JE YOUNG, KIM, SEOK KOO, KIM, EUN KYUNG, HAH, HOE JIN

Принадлежит:

The present invention relates to a negative electrode active material including porous silicon and a lithium secondary battery including the same and, more specifically, a negative electrode active material for a secondary battery, including porous silicon whose porosity is not more than 80%, and a secondary battery including the same. COPYRIGHT KIPO 2015 ...

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Номер записи: 98

12-10-2017 дата публикации

COMPOSITION FOR PREPARING POSITIVE ELECTRODE OF SECONDARY BATTERY, AND POSITIVE ELECTRODE FOR SECONDARY BATTERY AND SECONDARY BATTERY PREPARED BY USING SAME

Номер: KR1020170111749A

Автор: SHIM, HYE LIM, YOO, HOUNG SIK, CHOY, SANG HOON, YOO, JUNG WOO

Принадлежит:

The present invention relates to a composition for preparing a positive electrode of a secondary battery and, more specifically, to a composition for preparing a positive electrode of a secondary battery, and a positive electrode for a secondary battery and a secondary battery prepared by using the same. The composition comprises a positive electrode active material, a conductive material, a binder, a dispersant and a disperse medium. The binder comprises a fluorine-based polymer including 0.5 to 1 mol% of a hydrogen bond functional group in the molecule. The dispersant comprises hydrogenated nitrile rubber of which a residual double bond value according to math formula 1 is 30 wt% or less and the repeating unit content of α,β-unsaturated nitrile-derived structure in the molecule is 20 to 35 wt%. Accordingly, the composition can improve conductive material dispersibility in a positive electrode when preparing a positive electrode and increases adhesion between active materials or between ...

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Номер записи: 99

11-04-2016 дата публикации

DECOUPLER FOR HYDRO MOUNT

Номер: KR101608596B1

Автор: YU, JUNG WOO

Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

The present invention is capable of improving durability and preventing damage to a decoupler reducing vibrations by moving up and down in response to a fluid pressure change in upper and lower pressure chambers while providing a narrow orifice for a fluid by dividing the upper and lower chambers. According to the present invention, a decoupler for hydro mount includes: a bottom nozzle panel (100) including a fluid passage (104), formed outside an inner partition (102), and a first orifice (108) formed in the fluid passage (104) and connected to the lower pressure chamber; a pressure response valve (200) installed inside the partition (102) of the bottom nozzle panel (100) to be elastically moved up and down according to a pressure deviation between the upper and lower pressure chambers; and a top nozzle panel (300) including a second orifice (302) combined with the upper surface of the bottom nozzle panel (100) and connecting the fluid passage (104) with the upper pressure chamber. The ...

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Номер записи: 100