公开(公告)号：US20150255796A1

公开(公告)日：2015-09-10

申请号：US14476907

申请日：2014-09-04

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chang-Sam KIM ,  Sang Whan PARK ,  Byung Won CHO ,  Kyoung Ran LIM

IPC: H01M4/62 ,  H01M4/80 ,  H01M4/04

CPC classification number: H01B1/04 ,  B01J13/0034 ,  B01J13/0039 ,  B01J13/0047 ,  H01M4/0416 ,  H01M4/1397 ,  H01M4/663 ,  H01M4/664 ,  H01M4/667 ,  H01M4/806 ,  H01M4/96 ,  H01M10/3909 ,  H01M10/3954

Abstract: Disclosed is a carbon felt impregnated with inorganic particles. The impregnated carbon felt can be used together with sulfur in a cathode of a sodium-sulfur (Na—S) battery. Also disclosed is a method for producing the impregnated carbon felt. According to exemplary embodiments, the problem of the prior art can be solved in which inorganic particles such as alumina particles are not directly adhered to carbon felts, thus necessitating complicated processes. In addition, a slurry including an inorganic binder and alumina particles can be used to directly coat the alumina particles on the surface of a carbon felt, making the production procedure very simple. Furthermore, the use of the carbon felt surface coated with the alumina particles in a Na—S battery increases the wicking of sodium polysulfides, suppresses the accumulation of sulfur as an insulator on the surface of beta-alumina as an electrolyte, and inhibits non-uniform aggregation of sulfur or sodium polysulfides on the carbon felt, so that the concentration polarization of charges can be reduced without a significant increase in the internal resistance of the battery, achieving high utilization efficiency of sulfur as a reactant.

Abstract translation: 公开了用无机颗粒浸渍的碳毡。 浸渍的碳毡可以与硫磺一起在钠 - 硫（Na-S）电池的阴极中使用。 还公开了一种生产浸渍碳毡的方法。 根据示例性实施例，可以解决现有技术的问题，其中诸如氧化铝颗粒的无机颗粒不直接粘附到碳毡上，因此需要复杂的工艺。 此外，可以使用包含无机粘合剂和氧化铝颗粒的浆料直接涂覆在碳毡表面上的氧化铝颗粒，使得生产过程非常简单。 此外，使用在Na-S电池中涂覆有氧化铝颗粒的碳毡表面增加多硫化钠的芯吸，抑制作为电解质的β-氧化铝表面上作为绝缘体的硫的积聚， 在碳毡上均匀聚集硫或多硫化钠，从而可以降低电荷的浓度极化，而不会显着提高电池内阻，实现硫作为反应物的高利用率。

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：US20140361216A1

公开(公告)日：2014-12-11

申请号：US14037860

申请日：2013-09-26

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Yoon CHUNG ,  Ji Ung KIM ,  Ji-Young KIM ,  Byung Won CHO ,  Won Young CHANG

IPC: H01M4/36

CPC classification number: H01B1/08 ,  C01B35/128 ,  H01M4/364 ,  H01M4/505 ,  H01M4/5825

Abstract: Disclosed is a cathode active material for a lithium ion secondary battery which includes a lithium manganese borate compound and a manganese oxide. The lithium manganese borate compound contains a larger amount of lithium than conventional lithium manganese borate compounds. Therefore, a larger amount of lithium is deintercalated in a battery including the cathode active material, and as a result, the specific capacity of the battery reaches 100-160 mAh/g, which is much higher than that of conventional lithium ion secondary batteries (

Abstract translation: 公开了一种锂离子二次电池用正极活性物质，其包含硼酸锰锂化合物和锰氧化物。 硼酸锰锂化合物含有比常规的硼酸锂化合物更多的锂。 因此，在含有正极活性物质的电池中，脱锂的量越多，电池的比容量达到100〜160mAh / g，比常规的锂离子二次电池高 <80mAh / g）。 还公开了一种用于制造正极活性物质的方法。

公开(公告)号：US20140349177A1

公开(公告)日：2014-11-27

申请号：US14016549

申请日：2013-09-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Yoon CHUNG ,  Byung Won CHO ,  Joong Kee LEE ,  Hyung Sun KIM ,  Jae Hyun CHO ,  Won Young CHANG ,  Hwa Young LEE

IPC: H01M10/0568 ,  H01M10/058 ,  H01M4/58 ,  H01M10/054 ,  H01M10/052

CPC classification number: H01M10/0568 ,  H01M4/381 ,  H01M4/466 ,  H01M10/052 ,  H01M10/054 ,  H01M10/058 ,  H01M2300/0025 ,  Y10T29/49108

Abstract: The present disclosure relates to a magnesium hybrid battery and a method for fabricating same. The magnesium hybrid battery according to the present disclosure, which includes magnesium or magnesium alloy metal as an anode, a cathode including a cathode active material wherein not only magnesium ion but also one or more ion selected from lithium ion and sodium ion can be intercalated and deintercalated and an electrolyte including magnesium ion and further including one or more ion selected from lithium ion and sodium, can overcome the limitation of the existing magnesium secondary battery and provide improved battery capacity, output characteristics, cycle life, safety, etc.

Abstract translation: 本发明涉及镁混合电池及其制造方法。 根据本公开的镁混合电池，其包括镁或镁合金金属作为阳极，阴极包括正极活性材料，其中不仅可以插入镁离子而且还可以插入一种或多种选自锂离子和钠离子的离子， 脱嵌和包含镁离子的电解质，并且还包括一种或多种选自锂离子和钠的离子，可以克服现有镁二次电池的限制，并提供改进的电池容量，输出特性，循环寿命，安全性等。

公开(公告)号：US20140141324A1

公开(公告)日：2014-05-22

申请号：US13870439

申请日：2013-04-25

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Yoon CHUNG ,  Byung Won CHO ,  Joong Kee LEE ,  Jae Hyun CHO ,  Sang Hoon LEE ,  Won Young CHANG

IPC: H01M10/0567 ,  H01M10/054

CPC classification number: H01M10/0567 ,  H01M10/054 ,  H01M10/0568

Abstract: Provided are an electrolyte for a magnesium secondary battery having improved ion conductivity and stability, and a method for preparing the same. The electrolyte for a magnesium secondary battery shows higher ion conductivity as compared to the electrolyte according to the related art, increases the dissociation degree of a magnesium halide electrolyte salt, and provides stable electrochemical characteristics. In addition, after determining the capacity, output characteristics and cycle life of the magnesium secondary battery including the electrolyte, the battery provides significantly higher discharge capacity after 100 cycles, as compared to the electrolyte according to the related art. Therefore, the electrolyte may be useful for an electrolyte solution of a magnesium secondary battery.

Abstract translation: 提供一种具有改善的离子传导性和稳定性的用于镁二次电池的电解质及其制备方法。 与现有技术的电解液相比，镁二次电池用电解液的离子传导性高，卤化镁电解质盐的解离度提高，电化学性能稳定。 此外，在确定包括电解质的镁二次电池的容量，输出特性和循环寿命之后，与根据现有技术的电解液相比，电池在100次循环后提供显着更高的放电容量。 因此，电解质可用于镁二次电池的电解液。

公开(公告)号：US20210075053A1

公开(公告)日：2021-03-11

申请号：US16725656

申请日：2019-12-23

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Yoon CHUNG ,  Dong Hyun KIM ,  Juhyeon AHN ,  Jaeho PARK ,  Ji-Young KIM ,  Min Kyung CHO ,  Byung Won CHO ,  Hun-Gi JUNG ,  Minah LEE ,  Seungho YU ,  Hyungseok KIM

IPC: H01M10/054 ,  H01M10/0569 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/04

Abstract: The present disclosure relates to a cathode active material for a sodium ion secondary battery having high reversible capacity and excellent cycle characteristics, and a method for preparing the same. The cathode active material for a sodium ion secondary battery shows high reversible capacity and excellent cycle characteristics, when it is applied to a secondary battery. Therefore, when the cathode active material is used for manufacturing a cathode for a sodium ion secondary battery and the cathode is applied to a sodium ion secondary battery, the battery can substitute for the conventional expensive lithium ion secondary battery and can be applied to various industrial fields.

公开(公告)号：US20190074498A1

公开(公告)日：2019-03-07

申请号：US15944129

申请日：2018-04-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Yoon CHUNG ,  Dong Hyun KIM ,  Liau Dieky SUSANTO ,  Jaeho PARK ,  Jiwon JEONG ,  Hun-Gi JUNG ,  Won Young CHANG ,  Won Chang CHOI ,  Byung Won CHO

IPC: H01M2/10 ,  H01M10/48 ,  G01N23/20033 ,  G01N23/207

Abstract: An in-situ coin cell support device for transmission mode X-ray diffraction analysis capable of controlling temperature. The device includes a coin cell seating unit including a seating part for receiving an in-situ coin cell, a positive electrode tab coupled to the seating part and connected to a positive electrode of the in-situ coin cell, and a negative electrode tab coupled to the seating part and connected to a negative electrode of the in-situ coin cell, a housing having a heat-insulating function, which surrounds the coin cell seating unit such that the positive and negative electrode tabs extend outwards from the housing and which includes one side wall and an opposite side wall arranged opposite each other with the in-situ coin cell interposed therebetween, and a temperature control unit coupled to the exterior of the housing and including an inlet port, an outlet port, and a flow passage.

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：US20140264185A1

公开(公告)日：2014-09-18

申请号：US13944457

申请日：2013-07-17

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyung Sun KIM ,  Byung Won CHO ,  Hwa Young LEE ,  Eun Jung SHIN ,  Soo KIM ,  Kyung Yoon CHUNG

IPC: C01B25/45 ,  H01M4/58 ,  C01B25/37 ,  H01M10/54

CPC classification number: C01B25/45 ,  C01B25/375 ,  H01M4/5825 ,  H01M10/54 ,  Y02W30/84

Abstract: The present invention relates to a method for recycling LiFePO4, which is an olivine-based cathode material for a lithium secondary battery. The present invention is characterized in that a cathode material including LiFePO4 is synthesized using, as precursors, amorphous FePO4.XH2O and crystalline FePO4.2H2O (metastrengite) obtained by chemically treating LiFePO4 as an olivine-based cathode material for a lithium secondary battery, which is produced from a waste battery. Since a cathode fabricated from the LiFePO4 cathode material synthesized according to the present invention does not deteriorate the capacity, output characteristics, cycle efficiency and performance of the secondary battery and the cathode material of the lithium secondary battery may be recycled, the secondary battery is economically efficient.

Abstract translation: 本发明涉及一种再循环LiFePO4的方法，该方法是锂二次电池的橄榄石型阴极材料。 本发明的特征在于，使用通过化学处理作为锂二次电池的橄榄石型阴极材料的LiFePO 4获得的无定形FePO 4·XH 2 O和结晶FePO 4·2H 2 O（钛金刚石）作为前体，合成了包含LiFePO 4的阴极材料， 是由废电池产生的。 由于由根据本发明合成的LiFePO 4阴极材料制造的阴极不会劣化二次电池和锂二次电池的正极材料的容量，输出特性，循环效率和性能可以再循环，所以二次电池是经济的 高效。