公开(公告)号：US10176932B2

公开(公告)日：2019-01-08

申请号：US15237950

申请日：2016-08-16

Applicant: Korea Institute of Energy Research

Inventor： Sun-hwa Yeon ,  Myung-seok Jeon ,  Kyoung-hee Shin ,  Chang-soo Jin ,  Bum-suk Lee ,  Se-Kook Park ,  Dong-Ha Kim ,  Sang Ho Lee

IPC: H01G11/34 ,  C01B31/04 ,  H01G11/86 ,  C01B32/23

Abstract: A method of manufacturing a graphene composite including an ultrasonic-wave pulverization post-treatment process. The method includes radiating a microwave on a mixture of graphite oxide and a conducting agent, dispersing a resultant material, obtained during the radiating the microwave, in a liquid and performing ultrasonic-wave pulverization, and freeze-drying particles subjected to the ultrasonic-wave pulverization. The post-treatment process is added to the method of manufacturing the graphene composite including the reduced graphene oxide using the graphite oxide, thereby manufacturing a graphene composite having improved bindability with spherical activated carbon used to manufacture an active material. Further, the post-treated graphene composite is used to manufacture the active material and the supercapacitor, and accordingly, the active material can be thinly and densely applied to provide a supercapacitor having improved performance.

公开(公告)号：US10593982B2

公开(公告)日：2020-03-17

申请号：US15099742

申请日：2016-04-15

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Sun-Hwa Yeon ,  Kyoung-Hee Shin ,  Jae-Deok Jeon ,  Jung Joon Yoo ,  Hana Yoon ,  Chang-Soo Jin ,  Joon-Mok Shim ,  Jung-Hoon Yang ,  Kyu-Nam Jung ,  Dong-Ha Kim ,  Se-Kook Park

IPC: H01M8/18 ,  H01M8/04082 ,  H01G11/54 ,  H01G11/74 ,  H01G11/02 ,  H01G11/08 ,  H01G11/14 ,  H01G11/22

Abstract: Disclosed is a flow-type energy storage device having an improved flow of fluid. The flow-type energy storage device stores electricity using a fluidic material, and includes a reaction region in which charge-discharge reaction of electricity is performed by the fluidic material, wherein the reaction region has an octagonal cross-section. The shape of the reaction region is controlled to thus improve the flowability of the fluidic material, thereby providing a flow-type energy storage device that has almost constant electrical properties even when a charging and discharging cycle is repeatedly performed. Further, the structures of an inlet and an outlet are not complicated and a separate part for controlling the flow of fluid is not used in the device, and accordingly, additional costs are not incurred during a process of manufacturing the flow-type energy storage device.

公开(公告)号：US20170053749A1

公开(公告)日：2017-02-23

申请号：US15237950

申请日：2016-08-16

Applicant: Korea Institute of Energy Research

Inventor： Sun-hwa Yeon ,  Myung-seok Jeon ,  Kyoung-hee Shin ,  Chang-soo Jin ,  Bum-suk Lee ,  Se-Kook Park ,  Dong-Ha Kim ,  Sang Ho Lee

IPC: H01G11/34 ,  C01B31/04

CPC classification number: H01G11/34 ,  C01B32/23 ,  H01G11/86 ,  Y02E60/13

Abstract: Disclosed is a method of manufacturing a graphene composite including an ultrasonic-wave pulverization post-treatment process. The method includes radiating a microwave on a mixture of graphite oxide and a conducting agent, dispersing a resultant material, obtained during the radiating the microwave, in a liquid and performing ultrasonic-wave pulverization, and freeze-drying particles subjected to the ultrasonic-wave pulverization. In the present invention, the post-treatment process is added to the method of manufacturing the graphene composite including the reduced graphene oxide using the graphite oxide, thereby manufacturing a graphene composite having improved bindability with spherical activated carbon used to manufacture an active material. Further, the post-treated graphene composite is used to manufacture the active material and the supercapacitor, and accordingly, the active material can be thinly and densely applied to provide a supercapacitor having improved performance.

Abstract translation: 公开了一种制造包括超声波粉碎后处理工艺的石墨烯复合材料的方法。 该方法包括在石墨氧化物和导电剂的混合物上辐射微波，将在微波辐射期间获得的所得材料分散在液体中并进行超声波粉碎，并将经过超声波的颗粒冷冻干燥 粉碎。 在本发明中，将后处理工艺添加到使用石墨氧化物制造包括还原型氧化石墨的石墨烯复合物的方法中，由此制造具有改善的与用于制造活性材料的球形活性炭的粘合性的石墨烯复合材料。 此外，后处理石墨烯复合材料用于制造活性材料和超级电容器，因此，活性材料可以被薄且密集地应用以提供具有改进性能的超级电容器。