公开(公告)号：US20150243990A1

公开(公告)日：2015-08-27

申请号：US14528639

申请日：2014-10-30

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

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

IPC: H01M4/583 ,  H01M10/054 ,  H01M4/36

CPC classification number: H01M10/054 ,  H01M4/136 ,  H01M4/36 ,  H01M4/5825 ,  H01M4/625 ,  H01M2004/028 ,  H01M2220/20

Abstract: A cathode active material for a sodium secondary battery is provided. The cathode active material includes a FeF2.5(0.5H2O)-conductive carbon material composite and is prepared by low-temperature non-aqueous precipitation. The FeF2.5(0.5H2O)-conductive carbon material composite has high capacity and excellent cycle characteristics. In addition, the FeF2.5(0.5H2O)-conductive carbon material composite is prepared in an easy and economical manner by low-temperature non-aqueous precipitation. Therefore, the use of the FeF2.5(0.5H2O)-conductive carbon material composite ensures improved performance of the cathode active material. Further provided are a method for preparing the cathode active material and a sodium secondary battery employing the cathode active material.

Abstract translation: 提供了一种用于钠二次电池的阴极活性材料。 正极活性材料包括FeF2.5（0.5H2O）导电碳材料复合材料，并通过低温非水沉淀法制备。 FeF2.5（0.5H2O）导电碳材料复合材料具有高容量和优异的循环特性。 此外，FeF2.5（0.5H2O）导电碳材料复合材料通过低温非水性沉淀以简单经济的方式制备。 因此，使用FeF2.5（0.5H2O）导电碳材料复合物可确保改善阴极活性材料的性能。 还提供了制备阴极活性材料的方法和采用正极活性材料的钠二次电池。

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：US20190319265A1

公开(公告)日：2019-10-17

申请号：US16268891

申请日：2019-02-06

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Yoon CHUNG ,  Hun-Gi JUNG ,  Ji-Young KIM ,  Ghulam ALI ,  Mobinul ISLAM ,  Sang Ok KIM ,  Hyungseok KIM

IPC: H01M4/525 ,  H01M10/054 ,  H01M4/131 ,  H01M4/1391 ,  C01G51/04

Abstract: The present disclosure relates to an anode active material for a sodium ion secondary battery, a method for preparing the same, and a sodium ion secondary battery including the same. More particularly, the anode active material for a sodium ion secondary battery includes a cobalt tin spinel oxide obtained by a simple precipitation process, and can be applied to a sodium ion secondary battery having high capacity characteristics.

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：US20210151756A1

公开(公告)日：2021-05-20

申请号：US16829689

申请日：2020-03-25

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Moeez IQRA ,  Ji-Young KIM ,  Jaeho PARK ,  Hee-Dae LIM ,  Hun-Gi JUNG ,  Won Young CHANG ,  Minah LEE ,  Seungho YU ,  Kyung Yoon CHUNG

IPC: H01M4/58 ,  C01D3/04

Abstract: The present disclosure relates to a cathode active material for a secondary battery, a cathode for a secondary battery including the same, a secondary battery including the cathode for a secondary battery and manufacturing methods thereof. More particularly, it is possible to obtain a secondary battery having excellent electrochemical characteristics by electrochemically inducing a structural phase change in the cathode active material of a secondary battery including NaCl as a cathode active material.

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.