公开(公告)号：US10164239B2

公开(公告)日：2018-12-25

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: H01M4/133 ,  H01M4/04 ,  H01G11/36 ,  H01M4/36 ,  H01M4/131 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/1391 ,  H01G11/06 ,  H01G11/28 ,  H01G11/46 ,  H01G11/50 ,  H01M4/1393 ,  H01M10/0525

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.

公开(公告)号：US08987164B2

公开(公告)日：2015-03-24

申请号：US13708813

申请日：2012-12-07

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Jeung-Ku Kang ,  Dong-Ki Lee ,  Kyu-Sung Han ,  Weon-Ho Shin ,  Jung-Woo Lee ,  Jung-Hoon Choi ,  Kyung-Min Choi ,  Yeob Lee

IPC: B01J21/18 ,  B01J23/00 ,  H01B1/02 ,  H01B1/06 ,  H05B7/085 ,  H01L21/02 ,  H01L29/06 ,  H01L51/00

CPC classification number: H01L21/0228 ,  H01L29/0603 ,  H01L51/0045 ,  Y10S977/811 ,  Y10S977/823 ,  Y10S977/90

Abstract: A semiconductor of which a substance such as a semiconductor photocatalyst is uniformly coated on the surface thereof with a graphitic carbon film and a method of fabricating the same are disclosed. According to the inventive method, a graphitic carbon film having a thickness of 1 nm or less is uniformly formed on the surface of the semiconductor by performing hydrothermal synthesis and pyrolysis on glucose, so as to keep the original structure crystallinity of the semiconductor photocatalyst to be a support of the carbon film.

Abstract translation: 公开了一种半导体，其半导体光催化剂等物质用石墨碳膜均匀地涂覆在其表面上，以及制造方法。 根据本发明的方法，通过对葡萄糖进行水热合成和热解，在半导体的表面上均匀地形成厚度为1nm以下的石墨碳膜，以保持半导体光催化剂的原始结构结晶度为 碳膜的支撑。