公开(公告)号：US20180138502A1

公开(公告)日：2018-05-17

申请号：US15486201

申请日：2017-04-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Si Hyoung OH ,  Byung Won CHO ,  Won Young CHANG ,  Jung Hoon HA ,  Boeun LEE ,  Hyo Ree SEO

IPC: H01M4/36 ,  H01M10/054 ,  H01M4/58 ,  H01M4/62 ,  H01M4/38 ,  H01M10/0569 ,  H01M10/0568

CPC classification number: H01M4/364 ,  H01M4/13 ,  H01M4/381 ,  H01M4/5815 ,  H01M4/623 ,  H01M4/625 ,  H01M10/054 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2004/028

Abstract: Provided is a cathode material for a rechargeable magnesium battery, represented by the chemical formula of Ag2SxSe1-x (0≤x≤1), a highly stable cathode material and a rechargeable magnesium battery including the same. The cathode material for a rechargeable magnesium battery has a higher discharge capacity and higher discharge voltage as compared to a typical commercially available cathode material, Chevrel phase, and shows excellent stability in an electrolyte for a rechargeable magnesium battery including chloride ions. In addition, after evaluating the cycle life of the cathode material, the cathode material shows an excellent discharge capacity per unit weight after 500 charge/discharge cycles, and thus is useful for a cathode material for a rechargeable magnesium battery.

公开(公告)号：US20180034044A1

公开(公告)日：2018-02-01

申请号：US15396752

申请日：2017-01-02

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Yoon CHUNG ,  Ji-Hoon LEE ,  Ghulam ALI ,  Hun-Gi JUNG ,  Wonchang CHOI ,  Won Young CHANG ,  Si Hyoung OH ,  Byung Won CHO

IPC: H01M4/36 ,  H01M4/587 ,  H01M10/054 ,  H01M4/58

CPC classification number: H01M4/364 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/387 ,  H01M4/388 ,  H01M4/582 ,  H01M4/587 ,  H01M4/625 ,  H01M10/054 ,  H01M2004/021 ,  H01M2004/027

Abstract: Disclosed is an anode material for a sodium secondary battery. The anode material includes a tin fluoride-carbon composite composed of a tin fluoride and a carbonaceous material. The anode material can be used to improve the charge/discharge capacity, charge/discharge efficiency, and electrochemical activity of a sodium secondary battery. Also provided are a method for preparing the anode material and a sodium secondary battery including the anode material.

公开(公告)号：US20140363739A1

公开(公告)日：2014-12-11

申请号：US13966497

申请日：2013-08-14

Applicant: Korea Institute Of Science And Technology

Inventor： Hyung Sun KIM ,  Byung Won CHO ,  Si Hyoung OH ,  Ju Hyeon AHN ,  Yong Ho LEE ,  Won Chang CHOI

IPC: H01M4/485 ,  C01D1/02

CPC classification number: H01M4/485 ,  C01D1/02 ,  C01G31/02 ,  H01M10/054 ,  H01M2004/027 ,  Y02E60/122

Abstract: There is provided a preparation method of a sodium vanadium oxide-based (Na1+xV1-xO2) anode material for a sodium ion secondary battery synthesized by mixing particles of precursors such as sodium carbonate (Na2CO3) and vanadium oxide (V2O3) and pyrolyzing a mixture in a mixed gas atmosphere composed of 90 mol % of nitrogen gas and 10 mol % of hydrogen gas through a solid-state reaction. The sodium vanadium oxide-based anode material prepared according to the present invention shows a small change in volume caused by an initial irreversible capacity and continuous charge/discharge reactions, and thus it is useful for providing a next-generation sodium ion secondary battery having stable charge/discharge characteristics and cycle performance.

Abstract translation: 提供了通过混合前体如碳酸钠（Na 2 CO 3）和氧化钒（V 2 O 3）的颗粒合成的钠离子二次电池的钠钒氧化物（Na1 + xV1-xO2）阳极材料的制备方法，并将 通过固相反应在由90mol％的氮气和10mol％的氢气组成的混合气体气氛中进行混合。 根据本发明制备的基于氧化钒的阳极材料显示由初始不可逆容量和连续充放电反应引起的体积变化小，因此可用于提供具有稳定的下一代钠离子二次电池 充放电特性和循环性能。

公开(公告)号：US20170187032A1

公开(公告)日：2017-06-29

申请号：US15149520

申请日：2016-05-09

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Won Young CHANG ,  Byung Won CHO ,  Kyung Yoon CHUNG ,  Si Hyoung OH ,  Young Sun SHIN ,  Sooyeon HWANG ,  Yoon Bong OH

IPC: H01M4/134 ,  H01M4/62 ,  H01M4/1395 ,  H01M10/0568 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2/16 ,  H01M10/0569 ,  H01M4/38 ,  H01M4/04

CPC classification number: H01M4/134 ,  H01M4/0471 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/386 ,  H01M4/62 ,  H01M4/625 ,  H01M10/052

Abstract: Disclosed is a silicon-based anode active material for a lithium secondary battery. The silicon-based anode active material imparts high capacity and high power to the lithium secondary battery, can be used for a long time, and has good thermal stability. Also disclosed is a method for preparing the silicon-based anode active material. The method includes (A) binding metal oxide particles to the entire surface of silicon particles or portions thereof to form a silicon-metal oxide composite, (B) coating the surface of the silicon-metal oxide composite with a polymeric material to form a silicon-metal oxide-polymeric material composite, and (C) heat treating the silicon-metal oxide-polymeric material composite under an inert gas atmosphere to convert the coated polymeric material layer into a carbon coating layer.

公开(公告)号：US20160372787A1

公开(公告)日：2016-12-22

申请号：US14951973

申请日：2015-11-25

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Yoon CHUNG ,  Hun-Gi JUNG ,  Won Young CHANG ,  Byung Won CHO ,  Wonchang CHOI ,  Si Hyoung OH ,  Yoon-Sung LEE ,  Susanto DIEKY ,  Dong-Won KIM ,  Won-Kyung SHIN

IPC: H01M10/0565

CPC classification number: H01M10/0565 ,  H01M10/052 ,  H01M2300/0085

Abstract: Provided are a gel polymer electrolyte and a secondary battery including the same. More particularly, the gel polymer electrolyte includes a sodium cation-containing polymer from which sodium cations can be dissociated, and thus provides improved ion conductivity of sodium cations, thereby improving the electrochemical properties of a secondary battery.

Abstract translation: 提供了一种凝胶聚合物电解质和包含该聚合物电解质的二次电池。 更具体地说，凝胶聚合物电解质包括含钠阳离子的聚合物，钠阳离子可以从其中解离，从而提供了钠阳离子的改进的离子传导性，从而提高了二次电池的电化学性能。

公开(公告)号：US20240339602A1

公开(公告)日：2024-10-10

申请号：US18207267

申请日：2023-06-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Si Hyoung OH ,  Jinyeon HWANG ,  Minah LEE ,  Woo Joo NO ,  Kyung Yoon CHUNG

IPC: H01M4/46 ,  C07F9/09 ,  H01M4/04 ,  H01M10/054 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/44

CPC classification number: H01M4/466 ,  C07F9/09 ,  H01M4/0416 ,  H01M10/054 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/44

Abstract: Exemplary embodiments of the present invention may provide a magnesium electrode including an electrode plate including magnesium and a protective layer located on at least a part of a surface of the electrode plate, in which the protective layer includes a phosphoric acid alkyl ester compound.

公开(公告)号：US20230170537A1

公开(公告)日：2023-06-01

申请号：US17874966

申请日：2022-07-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Si Hyoung OH ,  Hyungi JO ,  Min Ji JEONG ,  Woo Joo NO ,  Hyungseok KIM ,  Minah LEE

IPC: H01M10/42 ,  C01G45/02 ,  C01G55/00

CPC classification number: H01M10/4242 ,  C01G45/02 ,  C01G55/00 ,  C01P2006/40 ,  H01M2300/0002

Abstract: Disclosed is a noble metal-manganese oxide composite catalyst for a positive electrode of an aqueous rechargeable battery that can regenerate a solvent of an aqueous electrolyte. Also disclosed are a method for preparing the composite catalyst, a positive electrode for an aqueous rechargeable battery including the composite catalyst, and an aqueous rechargeable battery including the positive electrode. The composite catalyst can regenerate reaction products, including gases continuously generated from spontaneous corrosion of the electrodes or side reactions, back to water to prevent depletion of the electrolyte. Due to this ability, the composite catalyst improves the life characteristics of the battery and suppresses the occurrence of excessive overpotentials at the electrodes. Therefore, the use of the composite catalyst is effective in preventing the performance of the battery from deteriorating. In addition, the composite catalyst can prevent an increase in the internal pressure of the battery resulting from gas generation and reduce the risk of fire or explosion, contributing to a significant improvement in the safety of the battery.

公开(公告)号：US20210167386A1

公开(公告)日：2021-06-03

申请号：US16817757

申请日：2020-03-13

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Hee-Dae LIM ,  Si Hyoung OH ,  Hun-Gi JUNG ,  Minah LEE ,  Hyungseok KIM ,  Sang Ok KIM ,  Young Soo YUN

IPC: H01M4/587 ,  H01M10/054 ,  H01M10/0568 ,  H01G9/008 ,  H01G9/042 ,  H01G9/035 ,  H01G9/145

Abstract: Disclosed is a calcined carbon material for a magnesium battery anode. The calcined carbon material includes catalytic carbon nanotemplates having a network structure in which nanofibers are entangled three-dimensionally. The calcined carbon material can be used as a magnesium battery anode material. Also disclosed is a method for preparing the calcined carbon material.

公开(公告)号：US20170212062A1

公开(公告)日：2017-07-27

申请号：US15099678

申请日：2016-04-15

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Yoon CHUNG ,  Dong Hyun KIM ,  Susanto DIEKY ,  Yeojo YOON ,  Byung Won CHO ,  Si Hyoung OH ,  Won Young CHANG

IPC: G01N23/20 ,  G01N23/207

CPC classification number: G01N23/20025 ,  G01N1/44 ,  G01N23/20008 ,  G01N23/20033 ,  G01N23/207 ,  G01N2223/309 ,  G01N2223/3106 ,  H05G1/34

Abstract: Provided is a furnace for a transmission mode X-ray diffractometer and a transmission mode X-ray diffractometer using the same. The furnace for a transmission mode X-ray diffractometer includes a sample heating unit disposed adjacent to a quartz capillary accommodating a sample to heat the sample, and a main body disposed to surround the quartz capillary and the sample heating unit and having an insulating function for allowing the heated sample to maintain a thermal equilibrium state.

公开(公告)号：US20160329563A1

公开(公告)日：2016-11-10

申请号：US14842752

申请日：2015-09-01

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Si Hyoung OH ,  Byung Won CHO ,  Kyung Yoon CHUNG ,  Hae Ri LEE

IPC: H01M4/505 ,  H01M4/36 ,  H01M10/052

CPC classification number: H01M4/366 ,  H01M4/505 ,  H01M4/5825 ,  H01M10/052 ,  H01M2004/028 ,  Y02E60/122

Abstract: Provided are a cathode active material coated with a fluorine-doped spinel-structured lithium metal manganese oxide, a lithium secondary battery including the same, and a method for preparing the same. The cathode active material has improved chemical stability and provides improved charge/discharge characteristics at elevated temperature (55-60° C.) and high rate. The cathode active material allows lithium ions to pass through the coating layer with ease and is chemically stable, and thus may be used effectively as a cathode active material for a high-power lithium secondary battery.

Abstract translation: 提供涂覆有掺杂氟的尖晶石结构的锂金属锰氧化物的正极活性材料，包括其的锂二次电池及其制备方法。 阴极活性材料具有改善的化学稳定性，并且在高温（55-60℃）和高速率下提供改善的充放电特性。 阴极活性材料容易使锂离子通过涂层，并且化学稳定，因此可以有效地用作高功率锂二次电池的阴极活性材料。