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：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：US20150016024A1

公开(公告)日：2015-01-15

申请号：US14031239

申请日：2013-09-19

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Won Chang CHOI ,  Ji Hun PARK ,  Martin HALIM ,  Joong Kee LEE ,  Jung Sub KIM ,  Kyu-Ha LEE ,  Bong Jo KANG ,  A Young KIM ,  Hun Gi JUNG ,  Yu Jin CHAE ,  Joo Man WOO ,  Yong-Ho LEE ,  Tae Yong KIM

IPC: H01G11/50 ,  H01G11/62 ,  H01G11/86 ,  H01G11/04

CPC classification number: H01G11/50 ,  H01G11/04 ,  H01G11/06 ,  H01G11/86 ,  Y02E60/13

Abstract: Disclosed is a cathode active material having a core-shell structure. The core-shell cathode active material includes a core including a lithium transition metal oxide with excellent electrochemical properties and a shell formed by coating the surface of the core with a transition metal oxide. The formation of the shell by coating a transition metal oxide on the surface of the core comprising a lithium transition metal oxide prevents the structure of the lithium transition metal oxide from collapsing and inhibits the dissolution of manganese ions, enabling the fabrication of a hybrid capacitor with improved energy density and rate characteristics. Also disclosed is a method for producing the cathode active material.

Abstract translation: 公开了具有核 - 壳结构的阴极活性材料。 核 - 壳阴极活性材料包括具有优异的电化学性质的锂过渡金属氧化物的核和通过用过渡金属氧化物涂覆芯的表面形成的壳。 通过在包含锂过渡金属氧化物的芯的表面上涂覆过渡金属氧化物来形成壳防止锂过渡金属氧化物的结构塌陷并抑制锰离子的溶解，使得能够制造具有 改善能量密度和速率特征。 还公开了一种用于制造正极活性物质的方法。

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。