公开(公告)号：US20230242400A1

公开(公告)日：2023-08-03

申请号：US17269006

申请日：2019-01-25

Applicant: OCI COMPANY LTD.

Inventor： Deokyun Kim ,  Hyejin Kim ,  Kyungyeol Kim ,  Yongil Kim

IPC: C01B15/013 ,  B01D61/48 ,  B01D3/14 ,  B01D61/02 ,  B01D61/58 ,  B01D15/08 ,  B08B3/08

CPC classification number: C01B15/0135 ,  B01D61/48 ,  B01D3/145 ,  B01D61/025 ,  B01D61/58 ,  B01D15/08 ,  B08B3/08 ,  B01D2313/221 ,  B01D2313/40 ,  B01D2317/025 ,  H01L21/02041

Abstract: The present invention relates to a method for purifying hydrogen peroxide, and more particularly, to a method including purifying a crude product of hydrogen peroxide using a primary purification system, and purifying a primarily purified hydrogen peroxide solution using a secondary purification system. One of the primary purification system and the secondary purification system includes an electrodeionization system, and the other one of the primary purification system and the secondary purification system includes at least one from among a distillation system, a resin system, a reverse osmosis system, and a combination system thereof.

公开(公告)号：US20220371963A1

公开(公告)日：2022-11-24

申请号：US17761783

申请日：2020-09-18

Applicant: OCI Company Ltd.

Inventor： Seung Yeon Lee ,  Seunggwan Lee ,  Eun Ok Chi

IPC: C04B35/593 ,  C04B35/626 ,  C04B35/636 ,  C04B41/45

Abstract: The present invention relates to a method for manufacturing a silicon nitride substrate and, more specifically, comprises the steps of: forming a slurry by mixing silicon nitride powder, a ceramic additive, and a solvent; molding the slurry to form sheets; sandwiching at least one of the sheets between a lower plate and an upper plate to form a stacked structure; degreasing the stacked structure; and sintering the stacked structure. At least one of the lower plate and the upper plate comprises a plurality of protrusions provided on one surface thereof, and the protrusions extend in parallel to each other in one direction.

公开(公告)号：US11377540B2

公开(公告)日：2022-07-05

申请号：US16582291

申请日：2019-09-25

Applicant: OCI COMPANY LTD.

Inventor： Yong-Jin Jeon ,  Jae-Seok Lee ,  Seock-Kyeong Choi

IPC: C08L9/00 ,  C07D307/20 ,  C08K5/06 ,  C08K5/1535 ,  C08K3/04 ,  C08L7/00

Abstract: Disclosed are a coupling agent for a rubber composition and a rubber composition for a tire containing the same. The rubber composition according to the present disclosure contains a coupling agent that may induce interactions between a rubber as a raw material and carbon black, thereby improving dispersibility of the carbon black in the rubber composition. Thus, a tire with low rolling-resistance and excellent wear resistance may be realized.

公开(公告)号：US10920086B2

公开(公告)日：2021-02-16

申请号：US16203952

申请日：2018-11-29

Applicant: OCI COMPANY LTD.

Inventor： Jae-Seok Lee

IPC: C09C1/56 ,  C09C1/50 ,  C09C1/58 ,  C09C1/60

Abstract: The present invention relates to a method for oxidizing a carbon black which can prevent or alleviate change in the surface oxidation degree of the carbon black by a residual ozone after surface oxidation reforming, and a method for preparing the carbon black by comprising it in a single continuous process.

公开(公告)号：US10513438B2

公开(公告)日：2019-12-24

申请号：US15613517

申请日：2017-06-05

Applicant: OCI Company Ltd.

Inventor： Wenjun Qin ,  Chad Fero ,  Aaron D. Rhodes ,  Jeffrey C. Gum

IPC: C23C16/50 ,  C01B33/035 ,  C23C16/24 ,  C23C16/44

Abstract: A method is provided for stabilizing filaments in a chemical vapor deposition (CVD) reactor. The method includes providing the pair of filaments, and connecting the pair of filaments with at least one stabilizer. The stabilizer may include an electronically insulating material.

公开(公告)号：US10290882B2

公开(公告)日：2019-05-14

申请号：US15535619

申请日：2015-12-16

Applicant: OCI COMPANY LTD.

Inventor： Min-Ki Hong ,  Eun-Sun Oh ,  Hee-Chang Ye ,  Byung-Chul Kim ,  Soo-Whan Kim

IPC: H01M8/04276 ,  H01M8/04537 ,  H01M8/18 ,  H01M8/04791 ,  H01M8/04858 ,  H01M8/04186

Abstract: According to one embodiment of the present invention, the method for controlling the pump speed of a redox flow battery for transferring an electrolyte stored in an electrolyte tank to a cell stack comprises the steps of: measuring the input power and/or the output power of the redox flow battery; measuring the charging power and/or the discharging power of the redox flow battery; calculating the power loss of the redox flow battery by using the difference between the input power and the charging power, or the difference between the output power and the discharging power; and adjusting the pump speed according to the power loss.

公开(公告)号：US20190020045A1

公开(公告)日：2019-01-17

申请号：US15669022

申请日：2017-08-04

Applicant: OCI Company Ltd.

Inventor： JaeMin KIM ,  HeeChang YE

IPC: H01M8/04537 ,  H01M8/18 ,  H01M8/04276

Abstract: Disclosed are a redox flow battery and a method of measuring a state of charge (SOC) thereof. The method may include measuring an open circuit voltage (OCV) during a specific period of time when a charging or discharging operation of a redox flow battery is performed, analyzing a change in SOC of the redox flow battery based on the measured OCV, correcting Coulomb efficiency based on the change in SOC, and calculating a second SOC of the redox flow battery based on the corrected Coulomb efficiency. The Coulomb efficiency may be a parameter, in which information regarding actual operation factors of the redox flow battery is contained.

公开(公告)号：US09981993B2

公开(公告)日：2018-05-29

申请号：US14793742

申请日：2015-07-08

Applicant: OCI COMPANY LTD.

Inventor： Eun-Hye Jeong ,  Yo-Seop Kim ,  Sung-Ho Jung ,  Jeong-Hyun Ha

IPC: H01M4/60 ,  H01M10/052 ,  C07F7/08 ,  H01M4/04 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587

CPC classification number: C07F7/0803 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/386 ,  H01M4/587 ,  H01M10/052

Abstract: Disclosed herein are a manufacturing method of a carbon-silicon composite, including: (a) preparing a slurry solution including silicon (Si)-block copolymer core-shell particles; (b) mixing the slurry solution with a carbon raw material to manufacture a mixed solution; (c) performing a primary carbonization process on the mixed solution, followed by pulverization, to manufacture a primary carbon-silicon composite; and (d) performing a secondary carbonization process on the primary carbon-silicon composite, followed by pulverization, to manufacture a secondary carbon-silicon composite, the carbon-silicon composite, an anode for a secondary battery manufactured by applying the carbon-silicon composite, and a secondary battery including the anode for a secondary battery.

公开(公告)号：US20250125341A1

公开(公告)日：2025-04-17

申请号：US18715249

申请日：2022-11-29

Applicant: OCI COMPANY LTD.

Inventor： Joonhyun CHANG ,  Minho NOH ,  Minkyung OH ,  Eunok CHI

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/583 ,  H01M4/62

Abstract: The present invention provides a method for preparing a negative electrode material for a secondary battery, comprising a high-quality nano-silicon-carbon composite material formed by uniformly and densely coating the surface of nano-silicon particles with a pitch. Further, the present invention provides a negative electrode material, for a secondary battery, prepared by the method for preparing the negative electrode material for a secondary battery, and a secondary battery comprising same, in order to enhance the initial discharge capacity, initial efficiency, and life characteristics of the secondary battery.

公开(公告)号：US12258268B2

公开(公告)日：2025-03-25

申请号：US17269006

申请日：2019-01-25

Applicant: OCI COMPANY LTD.

Inventor： Deokyun Kim ,  Hyejin Kim ,  Kyungyeol Kim ,  Yongil Kim

IPC: C01B15/013 ,  B01D3/14 ,  B01D15/08 ,  B01D61/02 ,  B01D61/42 ,  B01D61/48 ,  B01D61/58 ,  B08B3/08 ,  H01L21/02

Abstract: The present invention relates to a method for purifying hydrogen peroxide, and more particularly, to a method including purifying a crude product of hydrogen peroxide using a primary purification system, and purifying a primarily purified hydrogen peroxide solution using a secondary purification system. One of the primary purification system and the secondary purification system includes an electrodeionization system, and the other one of the primary purification system and the secondary purification system includes at least one from among a distillation system, a resin system, a reverse osmosis system, and a combination system thereof.