公开(公告)号：US20190341199A1

公开(公告)日：2019-11-07

申请号：US16018325

申请日：2018-06-26

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jeung Ku KANG ,  Il Woo OCK

IPC: H01G11/04 ,  H01G11/48 ,  H01G11/46 ,  H01G11/36 ,  H01G11/58

Abstract: The present disclosure relates to a pseudocapacitive conductive composite including conductive polymer chains formed on a graphene sheet, a composite for an electrode including sub-nanoscale particles of a metal oxide or metal sulfide formed on a graphene sheet, and an aqueous hybrid capacitor including the composites as electrode active materials.

公开(公告)号：US20160172120A1

公开(公告)日：2016-06-16

申请号：US14754478

申请日：2015-06-29

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jeung-Ku KANG ,  Kyung-Min CHOI ,  Dong-Ki LEE ,  Il Woo OCK ,  Jung-Hyo PARK ,  Hyung-Mo JEONG

IPC: H01G11/04 ,  H01G11/36 ,  H01G11/34 ,  H01M4/133 ,  H01M4/36 ,  H01M4/04 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/1393 ,  H01M4/1391 ,  H01G11/42 ,  H01M4/131

CPC classification number: H01M4/0402 ,  H01G11/06 ,  H01G11/28 ,  H01G11/36 ,  H01G11/46 ,  H01G11/50 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  Y02E60/13

Abstract: Disclosed is an energy storage device based on metal oxide nanocrystals resealed through lithiation, and a supercapacitor using the same. The energy storage device is fabricated by dispersing transition metal nanoparticles over a carbon-based support with a large specific surface area, and then, dispersing and resealing the nanoparticles over the support using lithium ions with strong reductive ability, so that the resealed metal particles are substantially particles dispersed and resealed over the support as particles having a size of less than 1 nanometer on the scale of atomic units. The supercapacitor is fabricated using the energy storage device. The energy storage device higher capacitance than before resealing of metal oxide. Since the resealed metal particles are those having a size of less than 1 nanometer on the scale of atomic units, interference between particles disappears to exhibit excellent cycle life characteristics of 100% maintained performance in even more than 100,000 cycles.

Abstract translation: 公开了一种基于通过锂化重新密封的金属氧化物纳米晶体的能量存储装置，以及使用其的超级电容器。 能量储存装置是通过将过渡金属纳米粒子分散在具有大比表面积的碳基支撑体上制造的，然后使用具有强还原能力的锂离子将纳米颗粒分散并重新密封在载体上，使得重新密封的金属颗粒 基本上颗粒以尺寸小于1纳米的原子单位的尺寸分散和重新密封在载体上作为颗粒。 使用储能装置制造超级电容器。 储能装置比金属氧化物再密封前的电容高。 由于重新密封的金属颗粒是具有小于1纳米尺寸的原子单元尺寸的颗粒，所以颗粒之间的干扰消失，在超过100,000次循环中表现出优异的100％保持性能的循环寿命特性。