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：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。