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。

公开(公告)号：US20160020464A1

公开(公告)日：2016-01-21

申请号：US14528609

申请日：2014-10-30

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Yoon CHUNG ,  Ji Ung KIM ,  Haein JO ,  Ji-Young KIM ,  Si Hyoung OH ,  Won Chang CHOI ,  Hwa Young LEE ,  Byung Won CHO

IPC: H01M4/58 ,  H01M4/136

CPC classification number: H01M4/5825 ,  H01M4/0471 ,  H01M4/136 ,  H01M4/505 ,  H01M10/052 ,  H01M2004/021

Abstract: Disclosed is a lithium manganese borate-based cathode active material. The cathode active material can be used to fabricate a lithium ion secondary battery that has advantages, such as high output capacity and cycle capacity, in comparison with lithium ion secondary batteries using conventional cathode active materials. Also disclosed are a lithium ion secondary battery including the cathode active material and a method for preparing the cathode active material.

Abstract translation: 公开了一种基于硼酸锂的阴极活性材料。 与使用常规的阴极活性物质的锂离子二次电池相比，正极活性物质可用于制造具有诸如高输出容量和循环容量等优点的锂离子二次电池。 还公开了包括阴极活性材料的锂离子二次电池和制备阴极活性材料的方法。

公开(公告)号：US20140219891A1

公开(公告)日：2014-08-07

申请号：US13852143

申请日：2013-03-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  POSCO M-TECH

Inventor： Hwa Young LEE ,  Byung Won CHO ,  Joong Kee LEE

IPC: C22B3/26

CPC classification number: C22B3/0005 ,  Y02P10/234

Abstract: A separation method of zirconium and hafnium is described which includes an extraction process of agitating an undiluted aqueous solution containing zirconium, hafnium, and sulfuric acid with a first stirring solution containing an acidic extractant to produce a first extract solution in which the hafnium is extracted by the acidic extractant; and a recovery process of agitating the first extract solution with a second stirring solution containing a citric acid solution to produce a citric acid solution after extraction in which zirconium is reverse-extracted from the first extract solution to the citric acid solution so as to recover zirconium contained in the first extract solution. The method may reduce the amount of extractant while greatly enhancing the separation effect of zirconium and hafnium, and increase zirconium recovery rate by more than 97% through an additional zirconium recovery process while reducing a hafnium content in zirconium by less than 50 ppm.

Abstract translation: 描述了锆和铪的分离方法，其包括使用含有酸性萃取剂的第一搅拌溶液搅拌未稀释的含有锆，铪和硫酸的水溶液的提取方法，以产生其中铪被提取的第一提取溶液 酸性提取剂; 以及回收方法，用含有柠檬酸溶液的第二搅拌溶液搅拌第一提取溶液，以在提取后产生柠檬酸溶液，其中将锆从第一提取溶液反萃取至柠檬酸溶液，以回收锆 包含在第一提取物溶液中。 该方法可以减少萃取剂的量，同时大大提高锆和铪的分离效果，并且通过另外的锆回收方法将锆回收率提高97％以上，同时将锆中的铪含量降低到低于50ppm。

公开(公告)号：US20140112860A1

公开(公告)日：2014-04-24

申请号：US13922380

申请日：2013-06-20

Applicant: Recytec. Inc. ,  Korea Institute of Science and Technology

Inventor： Hwa Young LEE ,  Joong Kee LEE ,  Jae Gyu JEE ,  Joon Chul CHOI

IPC: C01B19/00

CPC classification number: C01B19/001 ,  C01B19/00 ,  Y02P20/129

Abstract: A method for separating tellurium includes separating and recovering tellurium (Te) from a dissolved solution containing the tellurium using a solvent extraction by an extractant, which contains one selected from a group consisting of tributyl phosphate (TBP), tris(2-ethylhexyl) phosphate (TEHP) and a combination thereof. The method may separate and recover the tellurium as a high-priced metallic element from a material, such as a Bi2Te3-based waste thermoelectric material, which contains not only the tellurium but also other metallic elements, simply and economically using a solvent extraction, whereby the tellurium with high yield and high purity can be separated, recovered and recycled.

Abstract translation: 用于分离碲的方法包括使用萃取剂的溶剂萃取从含有碲的溶解溶液中分离和回收碲（Te），所述萃取剂含有选自磷酸三丁酯（TBP），磷酸三（2-乙基己基）酯 （TEHP）及其组合。 该方法可以从诸如基于Bi2Te3的废热电材料的材料中分离和回收作为高价金属元素的碲，其不仅包含碲而且还包含其它金属元素，简单且经济地使用溶剂萃取，由此 具有高产率和高纯度的碲可以分离，回收和再循环。

公开(公告)号：US20140097094A1

公开(公告)日：2014-04-10

申请号：US13670869

申请日：2012-11-07

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hwa Young LEE ,  Byung Won CHO ,  Joong Kee LEE

IPC: C25C1/08

CPC classification number: C25C1/08 ,  C23C18/1617 ,  C23C18/32

Abstract: A recovery method of nickel according to the present invention comprises pretreatment step to prepare a solution for electrolysis by adding hexanesulfonate salt to a treatment solution including nickel, and nickel recovery step to recover nickel in a metal form by electrolysis of the above solution for electrolysis. The present invention can produce nickel in high purity with simple process with low cost, and can recover and reproduce nickel in a metal form with at least 99.5% of high purity and at least 90% of recovery rate.

Abstract translation: 根据本发明的镍的回收方法包括预处理步骤，通过向包含镍的处理溶液中加入己磺酸盐来制备电解溶液，以及镍回收步骤，通过电解上述电解溶液来回收金属形式的镍。 本发明可以以低成本的简单工艺生产高纯度的镍，并且可以以至少99.5％的高纯度和至少90％的回收率回收和再现金属形式的镍。

公开(公告)号：US20130136996A1

公开(公告)日：2013-05-30

申请号：US13681560

申请日：2012-11-20

Applicant: Korea Institute of Science and Technology

Inventor： Joong Kee LEE ,  Byung Won CHO ,  Hwa Young LEE ,  Byoung Sung AHN ,  Joo Man WOO ,  Sang Ok KIM ,  Ji Hun PARK ,  Jung Sub KIM ,  Nguyen Si HIEU

IPC: H01M4/38 ,  H01M4/04 ,  H01M4/583

CPC classification number: H01M4/386 ,  B82Y30/00 ,  H01M4/04 ,  H01M4/0428 ,  H01M4/049 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/405 ,  H01M4/583

Abstract: Disclosed are a metallic nano-structure material in which an energy storage capacity based on electrochemical reaction with lithium is improved by 10 times or more compared to a conventional graphite material and power characteristics are excellent, an electrode composed of the metallic nano-structure material, and a lithium ion asymmetric secondary battery including the electrode as an anode. When using the electrode for the lithium ion asymmetric secondary battery, energy larger than with the graphite material can be stored with very thin thickness due to the high-capacity feature of the metallic material and the high-power feature can be achieved by the nano structure, such that energy density can be innovatively improved in the same weight condition when compared to a conventional lithium ion capacitor, and the lithium ion asymmetric secondary battery including the electrode can be used for renewable energy storage, ubiquitous power supply, heavy machinery, vehicle power source, etc.

Abstract translation: 公开了一种金属纳米结构材料，其中与常规石墨材料相比，基于与锂的电化学反应的能量存储容量提高10倍以上，功率特性优异，由金属纳米结构材料构成的电极， 以及包含该电极作为阳极的锂离子不对称二次电池。 当使用电极作为锂离子不对称二次电池时，由于金属材料的高容量特性，能够比石墨材料大的能量可以非常薄的厚度储存，并且可通过纳米结构实现高功率特征 与以往的锂离子电容器相比，能够在与重量相同的条件下进行能量密度的创新改善，并且包含电极的锂离子不对称二次电池可用于可再生能源储存，普遍存在的电力供应，重型机械，车辆动力 来源等

公开(公告)号：US20150151966A1

公开(公告)日：2015-06-04

申请号：US14541799

申请日：2014-11-14

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  RECYTEC INC.

Inventor： Hwa Young LEE ,  Joong Kee LEE ,  Jae Gyu JEE ,  Joon Chul CHOI

IPC: C01B19/00 ,  C07C51/42

CPC classification number: C01B19/001 ,  C01B19/005 ,  C07C51/412 ,  C07C51/48 ,  Y02P20/129 ,  C07C55/07

Abstract: The present invention relates to a method of separating tellurium (Te) and selenium (Se) by using a neutral extractant (for example, either one of TBP and TEHP, or in combination thereof) from a dissolved solution of tellurium, such as a waste thermoelectric material. When tellurium and selenium are separated by using the method of this invention from a dissolved solution in which a Bi2Te3-based waste thermoelectric material is dissolved, a recovery rate of 97% or more and a separation factor of 400 or more for tellurium may be achieved, and therefore, tellurium and selenium may be separated in a very effective and economic manner as compared to conventional methods. Further, the present invention is characterized in that environmental pollution issues may be significantly reduced as compared with conventional methods carried out in a strong acidic solution since the present separation and extraction is conducted under a relative weak acid atmosphere in a pH range of 1.0 to 1.5.

Abstract translation: 本发明涉及通过使用中和提取剂（例如，TBP和TEHP中的任一种或其组合）从碲的溶解溶液（例如废物）分离碲（Te）和硒（Se）的方法 热电材料。 当使用本发明的方法从溶解有Bi 2 Te 3的废热电材料的溶解溶液中分离碲和硒时，可以实现97％以上的回收率和碲的分离系数为400以上。 因此，与常规方法相比，碲和硒可以以非常有效和经济的方式分离。 此外，本发明的特征在于，与在强酸性溶液中进行的常规方法相比，可以显着降低环境污染问题，因为在1.0至1.5的pH范围内的相对弱酸性气氛下进行本分离和萃取 。

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。