公开(公告)号：US11411219B2

公开(公告)日：2022-08-09

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 ,  H01G9/042 ,  H01G9/008 ,  H01G9/035 ,  H01G9/145 ,  H01M4/02

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：US10113980B2

公开(公告)日：2018-10-30

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: H05G1/34 ,  G01N1/44 ,  G01N23/20 ,  G01N23/20025 ,  G01N23/20033 ,  G01N23/20008 ,  G01N23/207

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：US10403886B2

公开(公告)日：2019-09-03

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 ,  H01M4/38 ,  H01M4/58 ,  H01M4/587 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/62 ,  H01M10/054 ,  H01M4/02

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：US09166225B2

公开(公告)日：2015-10-20

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 ,  H01M4/02 ,  C01G31/02 ,  H01M10/054

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：US10483527B2

公开(公告)日：2019-11-19

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: H01M10/052 ,  H01M4/36 ,  H01M4/38 ,  H01M4/58 ,  H01M4/62 ,  H01M10/054 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/02

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：US09660260B2

公开(公告)日：2017-05-23

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: H01M4/36 ,  H01M4/505 ,  H01M4/58 ,  H01M10/052 ,  H01M4/02

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.

公开(公告)号：US09543616B2

公开(公告)日：2017-01-10

申请号：US14633807

申请日：2015-02-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Si Hyoung Oh ,  Byung Won Cho ,  Kyung Yoon Chung ,  Joong Kee Lee ,  Won Young Chang ,  Jae Hyun Cho ,  Junghoon Ha

IPC: H01M10/54 ,  H01M10/0567 ,  H01M10/054 ,  H01M10/0568 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  H01M10/054 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0025

Abstract: Disclosed is an electrolyte solution for a magnesium rechargeable battery with a high ionic conductivity and a wide electrochemical window compared to the conventional electrolyte solution. The electrolyte solution is prepared by dissolving magnesium metal into the ethereal solution using combinations of metal chloride catalysts. The electrolyte solution can be applied to fabricate magnesium rechargeable batteries and magnesium hybrid batteries with a markedly increased reversible capacity, rate capability, and cycle life compared to those batteries employing the conventional electrolyte solution. Also disclosed is a method for preparing the electrolyte.

Abstract translation: 公开了与常规电解质溶液相比，具有高离子电导率和宽电化学窗口的镁可充电电池的电解液。 通过使用金属氯化物催化剂的组合将镁金属溶解在醚溶液中来制备电解质溶液。 与使用常规电解质溶液的电池相比，电解质溶液可用于制造镁可充电电池和镁混合电池，其具有显着增加的可逆容量，速率能力和循环寿命。 还公开了一种制备电解质的方法。