公开(公告)号：KR102071138B1

公开(公告)日：2020-01-29

申请号：KR1020180058692

申请日：2018-05-24

Applicant: 전남대학교산학협력단 ,  한국기초과학지원연구원

Inventor： 전영시 ,  김해진 ,  허윤석 ,  송지윤 ,  이현행 ,  홍원기 ,  김미진

IPC: H01M4/136 ,  H01M4/58 ,  H01M4/66 ,  H01M4/80 ,  H01M10/052 ,  H01M10/0525

公开(公告)号：KR1020130111894A

公开(公告)日：2013-10-11

申请号：KR1020120034127

申请日：2012-04-02

Applicant: 한국기초과학지원연구원

Inventor： 최봉길 ,  허윤석

IPC: C01B31/02 ,  B32B15/00

CPC classification number: B82Y40/00 ,  B82Y30/00 ,  C01B32/182 ,  H01G11/36 ,  Y02E60/13 ,  B05D3/02 ,  B05D5/00

Abstract: PURPOSE: A porous graphene film, a production method thereof, and an electrochemical element are provided to produce the graphene film on which porous with various sizes is formed and to utilize as a high power energy storage element material by revealing a wide specific surface area and an improved charge transfer property. CONSTITUTION: A production method of a porous graphene film includes the following steps; a step which produces a graphene/polymer compound dispersed solution by adding polymer particles into a graphene dispersed solution in which graphene powder is dispersed in a solvent (S110); a step which produces a graphene/polymer compound dispersed film from the graphene/polymer compound dispersed solution (S120); and a step which produces the porous graphene film removing polymer particles from the graphene/polymer compound film. [Reference numerals] (AA) Start; (BB) End; (S110) Produce graphene/polymer compound dispersed solution; (S120) Produce graphene/polymer compound dispersed film; (S130) Produce porous graphene film; (S140) Transition metal coating

Abstract translation: 目的：提供一种多孔石墨烯薄膜及其制备方法和电化学元件，以生产出形成各种尺寸的多孔的石墨烯薄膜，并通过显示较宽的比表面积和作为高功率储能元件材料而使用 改进的电荷转移性能。 构成：多孔石墨烯薄膜的制造方法包括以下步骤： 通过将石墨烯粉末分散在溶剂中的石墨烯分散溶液中添加聚合物粒子来生成石墨烯/高分子化合物分散溶液的工序（S110）。 从石墨烯/高分子化合物分散溶液中生成石墨烯/高分子化合物分散膜的步骤（S120）; 以及从石墨烯/高分子化合物膜产生多孔石墨烯膜去除聚合物颗粒的步骤。 （附图标记）（AA）开始; （BB）结束; （S110）生产石墨烯/高分子化合物分散液; （S120）生产石墨烯/高分子化合物分散膜; （S130）生产多孔石墨烯薄膜; （S140）过渡金属涂层

公开(公告)号：KR101294701B1

公开(公告)日：2013-08-08

申请号：KR1020120031694

申请日：2012-03-28

Applicant: 한국기초과학지원연구원

Inventor： 김정민 ,  김병훈 ,  김해진 ,  홍원기 ,  허윤석 ,  이진배

IPC: H01M4/139 ,  H01M10/058 ,  H01M10/052

CPC classification number: C01G45/1235 ,  C01P2006/40 ,  H01M4/139 ,  H01M4/1391 ,  H01M10/0525 ,  Y02E60/122

Abstract: PURPOSE: A manufacturing method of an electrode active material for a secondary battery is provided to easily and quickly manufacture a positive electrode material for a high efficiency secondary battery with high crystallinity and a wide reaction area by using ultrasonic waves. CONSTITUTION: A manufacturing method of an electrode active material for a secondary battery comprises a step of manufacturing an acid-mixed solution by applying ultrasonic waves while adding an acid solution into a transition metal precursor-containing aqueous solution (S110); a step of conducting the centrifugation of the acid-mixed solution (S120); a step of applying ultrasonic waves to the supernatant of the centrifugation-treated solution while mixing the supernatant with a reductant, and stirring the mixture (S130); a step of filtering the supernatant mixture solution (S140); a step of drying the filtered material (S150); and a step of synthesizing an electrode active material by drying the filtered material in an inert gas atmosphere (S160). [Reference numerals] (AA) Start; (BB) End; (S110) Sep of applying ultrasonic waves and adding an acid solution into a transition metal precursor-containing aqueous solution; (S120) Step of conducting a centrifugation; (S130) Step of mixing the supernatant of the centrifugation-treated solution with a reductant, applying ultrasonic waves, and stirring; (S140) Step of filtering the supernatant mixture solution; (S150) Step of drying the filtered material; (S160) Step of drying the dried filtered material in an inert gas atmosphere

Abstract translation: 目的：提供一种用于二次电池的电极活性材料的制造方法，以便通过使用超声波容易且快速地制造具有高结晶度和宽反应面积的高效二次电池用正极材料。 构成：二次电池用电极活性物质的制造方法包括通过在含有过渡金属前体的水溶液中添加酸溶液的同时施加超声波来制造酸溶液的工序（S110）。 进行酸混合溶液离心的步骤（S120）; 将上清液与还原剂混合并搅拌混合物（S130）的步骤，将超声波施加到离心处理溶液的上清液上。 过滤上清混合溶液的步骤（S140）; 干燥过滤材料的步骤（S150）; 以及通过在惰性气体气氛中干燥过滤材料来合成电极活性物质的步骤（S160）。 （附图标记）（AA）开始; （BB）结束; （S110）Sep施加超声波并将酸溶液加入到含过渡金属前体的水溶液中; （S120）进行离心的工序; （S130）将离心处理溶液的上清液与还原剂混合，施加超声波，搅拌的工序; （S140）过滤上清液混合溶液的步骤; （S150）干燥过滤材料的步骤; （S160）在惰性气体气氛中干燥经过滤的物料的步骤

公开(公告)号：KR101351269B1

公开(公告)日：2014-01-15

申请号：KR1020120034127

申请日：2012-04-02

Applicant: 한국기초과학지원연구원

Inventor： 최봉길 ,  허윤석

IPC: C01B31/02 ,  B32B15/00

CPC classification number: B82Y40/00 ,  B82Y30/00 ,  C01B32/182 ,  H01G11/36 ,  Y02E60/13

Abstract: 전기적 특성이 우수한 다공성 그라핀 필름 제조 방법에 대하여 개시한다.
본 발명에 따른 다공성 그라핀 필름 제조 방법은 (a) 용매에 그라핀 파우더가 분산되어 형성된 그라핀 분산 용액에 고분자 입자를 첨가하여 그라핀/고분자 복합 분산 용액을 제조하는 단계; (b) 상기 그라핀/고분자 복합 분산 용액으로부터 그라핀/고분자 복합 필름을 제조하는 단계; 및 (c) 상기 그라핀/고분자 복합 필름으로부터 고분자 입자를 제거하여 다공성 그라핀 필름을 제조하는 단계;를 포함하는 것을 특징으로 한다.

公开(公告)号：KR101218353B1

公开(公告)日：2013-01-04

申请号：KR1020110082424

申请日：2011-08-18

Applicant: 한국기초과학지원연구원

Inventor： 김병훈 ,  김정민 ,  홍원기 ,  이상문 ,  김해진 ,  한영규 ,  허윤석 ,  장성진 ,  유한영

IPC: C01B31/02 ,  C01B3/00 ,  B01J20/20

CPC classification number: C01B32/184 ,  B01J20/205 ,  C01B3/00 ,  C01B32/23 ,  C01B2204/04

Abstract: PURPOSE: A manufacturing method of a hydrogen storage medium from staked graphene oxides, and the hydrogen storage medium are provided to reduce the stacked graphene oxides into stacked graphene by thermal treatment. CONSTITUTION: A manufacturing method of a hydrogen storage medium from stacked graphene oxides includes a process in which the stacked graphene oxides are reduced into stacked graphene by thermal treatment at a temperature between 50 and 250 deg C for 0.5-5 hours. In the thermal treatment, oxygen groups and functional groups containing the oxygen groups are removed from the stacked graphene oxides. The interlayer spacing of the stacked graphene is narrower than the interlayer spacing of the stacked graphene oxides. [Reference numerals] (AA) Hydrogen storage amount(at 90atm, wt%); (BB) Embodiment 4; (CC) Embodiment 5; (DD) Embodiment 6; (EE) Embodiment 7; (FF) Embodiment 8; (GG) Comparative embodiment 2; (HH) Comparative embodiment 3

Abstract translation: 目的：提供从沉积的氧化石墨烯的氢存储介质的制造方法和氢存储介质，以通过热处理将堆叠的石墨烯氧化物还原成堆叠的石墨烯。 构成：层叠石墨烯氧化物的氢存储介质的制造方法包括通过在50〜250℃的温度下热处理0.5〜5小时的层叠石墨烯氧化物而被还原为层叠的石墨烯的工序。 在热处理中，从层叠的石墨烯氧化物中除去氧基和含有氧基的官能团。 堆叠的石墨烯的层间距离比堆叠的石墨烯氧化物的层间距窄。 （标号）（AA）储氢量（90atm，wt％）; （BB）实施例4; （CC）实施例5; （DD）实施例6; （EE）实施例7; （FF）实施例8; （GG）比较实施例2; （HH）比较实施例3

公开(公告)号：KR1020130040541A

公开(公告)日：2013-04-24

申请号：KR1020110105389

申请日：2011-10-14

Applicant: 한국기초과학지원연구원

Inventor： 김병훈 ,  김정민 ,  홍원기 ,  김해진 ,  허윤석 ,  장성진

IPC: H01M4/583 ,  H01M4/48 ,  B82B3/00 ,  H01M4/139

CPC classification number: C01B32/182 ,  C01G49/06 ,  C01P2004/80 ,  C01P2006/40 ,  H01M4/362 ,  H01M4/48 ,  H01M4/587 ,  H01M10/0525 ,  Y02E60/122

Abstract: PURPOSE: A manufacturing method of a graphene-metal oxide is provided to obtain a graphene-metal oxide composite with excellent lifetime and high capacity by a simple manufacturing process. CONSTITUTION: A manufacturing method of a graphene-metal oxide composite comprises: a step of dispersing a graphene oxide into a solvent to manufacture a graphene oxide solution, and dispersing a metal oxide into a solvent to manufacture a metal oxide solution; a step of mixing the graphene oxide solution and the metal oxide solution to manufacture a graphene oxide-metal oxide composite; and a step of heat-treating the graphene oxide-metal oxide composite to remove oxygen and oxygen-containing functional groups from the graphene oxide and to reduce the graphene oxide into graphene to manufacture the graphene-metal oxide composite. [Reference numerals] (AA) Example 1; (BB) Comparative example 1;

Abstract translation: 目的：提供石墨烯 - 金属氧化物的制造方法，以通过简单的制造工艺获得具有优异的寿命和高容量的石墨烯 - 金属氧化物复合材料。 构成：石墨烯 - 金属氧化物复合体的制造方法包括：将氧化石墨烯分散在溶剂中以制造氧化石墨烯溶液并将金属氧化物分散到溶剂中以制造金属氧化物溶液的步骤; 将石墨烯氧化物溶液和金属氧化物溶液混合以制造氧化石墨烯氧化物 - 金属氧化物复合物的步骤; 以及对氧化石墨烯氧化物复合体进行热处理从氧化石墨烯中去除氧和氧的官能团并将石墨烯氧化物还原为石墨烯以制造石墨烯 - 金属氧化物复合物的步骤。 （标号）（AA）实施例1; （BB）比较例1;

公开(公告)号：KR1020130040540A

公开(公告)日：2013-04-24

申请号：KR1020110105387

申请日：2011-10-14

Applicant: 한국기초과학지원연구원

Inventor： 김병훈 ,  김정민 ,  홍원기 ,  김해진 ,  허윤석 ,  장성진

IPC: H01M4/583 ,  C01B31/02 ,  H01M4/1393 ,  B82B3/00

CPC classification number: H01M4/583 ,  B82B3/00 ,  C01B32/23 ,  H01M4/1393 ,  H01M10/052 ,  H01M2004/027 ,  Y02E60/122

Abstract: PURPOSE: A manufacturing method of a negative electrode active material is provided to obtain a negative electrode active material with excellent lifetime and high capacity by a simple manufacturing process. CONSTITUTION: A manufacturing method of a negative electrode active material comprises: a step of heat-treating graphene oxide, removing oxygen and oxygen-containing functional groups from the graphene oxide, and reducing the graphene oxide by graphene; a step of forming pores in the reduced graphene. The heat treatment is conducted at 200-800 deg. C. The graphene has 40-80% weight of the total weight of the graphene oxide.

Abstract translation: 目的：提供一种负极活性物质的制造方法，通过简单的制造工序得到寿命长，容量大的负极活性物质。 构成：负极活性物质的制造方法包括：对氧化石墨烯进行热处理的步骤，从氧化石墨烯中除去氧和含氧官能团，并用石墨烯还原石墨烯氧化物; 在还原石墨烯中形成孔的步骤。 热处理在200-800度进行。 石墨烯具有石墨烯氧化物总重量的40-80重量％。