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：US20210347787A1

公开(公告)日：2021-11-11

申请号：US17121347

申请日：2020-12-14

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Minah LEE ,  Jihyun HONG ,  Kyung Yoon CHUNG ,  Jin-Yoo SUH ,  Sang Ok KIM ,  Hyungseok KIM ,  Inyeong KANG ,  Ju Young JANG ,  Jin Kwan CHOI

IPC: C07F1/02 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/36

Abstract: The present disclosure relates to a prelithiation solution and a method for preparing a prelithiated anode using the same. The prelithiation solution and the method for preparing a prelithiated anode using the same according to the present disclosure allow uniform intercalation of lithium ions throughout the anode chemically in a solution via a simple process of immersing the anode in a prelithiation solution having a sufficiently low redox potential as compared to an anode active material. A prelithiated anode prepared by this method has an ideal initial coulombic efficiency and a lithium secondary battery with a high energy density can be prepared based thereon. In addition, the prepared anode is advantageously applicable to large-scale production due to superior stability even in dry air.

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：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.