KR101348202B1 - 금속산화물-탄소입자-탄소나노섬유복합체, 상기 복합체 제조방법, 및 상기 복합체를 포함하는 탄소섬유응용제품 - Google Patents
금속산화물-탄소입자-탄소나노섬유복합체, 상기 복합체 제조방법, 및 상기 복합체를 포함하는 탄소섬유응용제품 Download PDFInfo
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- KR101348202B1 KR101348202B1 KR1020110127307A KR20110127307A KR101348202B1 KR 101348202 B1 KR101348202 B1 KR 101348202B1 KR 1020110127307 A KR1020110127307 A KR 1020110127307A KR 20110127307 A KR20110127307 A KR 20110127307A KR 101348202 B1 KR101348202 B1 KR 101348202B1
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- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/20—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products
- D01F9/21—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F9/22—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
- D01F9/225—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles from stabilised polyacrylonitriles
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/20—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products
- D01F9/24—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- H—ELECTRICITY
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- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Electric Double-Layer Capacitors Or The Like (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
도 2는 그래핀의 X선 광전자 분광법 (XPS) 스펙트럼의 전체영역 스캔 (XPS Survey) 그래프l
도 3은 그래핀의 전자 투과전자 현미경(TEM)사진,
도 4는 그래핀의 X선 회절 분석 (XRD) 그래프,
도 5는 본 발명의 실시예1 및 2, 비교예1 내지 3에서 제조된 탄소나노섬유복합체의 주사전자현미경(SEM) 사진과 에너지 분산형 X-선 분광기 (EDX)에 의한 원소분석 사진,
도 6은 본 발명의 실시예1 및 2, 비교예1에서 제조된 탄소나노섬유복합체의 X선 회절분석 (XRD) 그래프,
도 7은 본 발명의 실시예1 및 2, 비교예1에서 제조된 탄소나노섬유복합체의 라만 스펙트라 그래프,
도 8은 본 발명의 실시예3 및 4, 비교예4 내지 6에서 제조된 슈퍼캐패시터용 전극들의 수용액 전해질에서의 전기용량을 방전전류 밀도 1 mA/㎠에서 측정하여 나타낸 그래프,
도 9는 본 발명의 실시예3 및 4, 비교예4 내지 6에서 제조된 슈퍼캐패시터용 전극들의 수용액 전해질에서의 출력과 동력 밀도를 측정한 결과를 나타내는 Ragon 그래프,
도 10은 본 발명의 실시예3 및 4, 비교예4 내지 6에서 제조된 슈퍼캐패시터용 전극들의 수용액 전해질에서의 순환 전압전류 (Cyclic voltamogram) 그래프,
도 11은 본 발명의 실시예5 및 6, 비교예7 및 8에서 제조된 코인셀들의 충방전 사이클 결과 그래프,
도 12는 본 발명의 실시예5 및 6, 비교예7 및 8에서 제조된 코인셀들의 사이클 특성 결과 그래프.
원소분석 | ||||
C | H | N | O | |
그래핀 | 88.68 | 0.79 | 1.11 | 7.95 |
Sample | O/C | 원소조성비 (Atomic %) | ||
C | O | N | ||
그래핀 | 0.06 | 93.29 | 5.90 | 0.81 |
TP-10 | TGP-10-3 | TGP-10-5 | |
d002 (nm) | 0.3570 | 0.3409 | 0.3366 |
Lc (nm) | 1.315 | 1.358 | 1.417 |
TP-10 | TGP-10-3 | TGP-10-5 | |
ID/IG | 1.146 | 1.056 | 1.083 |
La (nm) | 3.788 | 4.110 | 4.008 |
Sample | O1s/C1s (%) | N1s/C1s (%) | Si2p/C1s (%) |
TGP-10-5 | 15.31 | 13.28 | 4.78 |
TGP-10-3 | 8.60 | 12.63 | 2.75 |
TP-10 | 3.50 | 13.23 | 0.63 |
GP-3 | 3.40 | 13.3 | - |
Claims (16)
- 금속산화물 및 탄소입자가 균일하게 분산되어 포함되는데,
상기 탄소입자는 그래핀이며, 그 직경은 100 ~ 300 nm이고, 비표면적은 300 ~ 500 m2/g이며, 평균 세공 직경은 1 ~ 2 nm인 것을 특징으로 하는 금속산화물-탄소입자-탄소나노섬유복합체.
- 삭제
- 삭제
- 금속알콕사이드[M(OR)n], 탄소입자, 탄소나노섬유전구체를 포함하는 방사용액을 준비하는 단계; 상기 방사용액을 전기방사하여 전구체방사섬유를 얻는 단계; 상기 전구체방사섬유를 산화안정화하여 내염화섬유를 얻는 단계; 및 상기 내염화섬유를 탄화하여 금속산화물-탄소입자-탄소나노섬유복합체를 얻는 단계;를 포함하는데,
상기 탄소입자는 그래핀이고,
상기 방사용액에 포함된 금속알콕사이드 및 탄소입자의 농도를 제어하여 상기 탄소나노섬유복합체의 비표면적 및 미세공의 크기 중 하나 이상을 제어할 수 있는 것을 특징으로 하는 금속산화물-탄소입자-탄소나노섬유복합체 제조방법.
- 제 4 항에 있어서,
상기 방사용액은 탄소나노섬유전구체과 금속알콕사이드의 합산 함량 100중량부 당 탄소입자 1 내지 5중량부를 포함하는 것을 특징으로 하는 금속산화물-탄소입자-탄소나노섬유복합체제조방법.
- 제 5 항에 있어서,
상기 탄소나노섬유전구체와 금속알콕사이드는 80 내지 95 : 5 내지 20중량%로 포함되는 것을 특징으로 하는 금속산화물-탄소입자-탄소나노섬유복합체 제조방법.
- 제 4 항에 있어서,
상기 금속알콕사이드는 Si-알콕사이드, Ti-알콕사이드, Al-알콕사이드, Zn-알콕사이드 중 어느 하나 이상인 것을 특징으로 하는 금속산화물-탄소입자-탄소나노섬유복합체 제조방법.
- 제 4 항에 있어서,
상기 산화안정화는 상기 전구체방사섬유를 열풍순환爐를 사용하여 압축공기를 분당 5~20 mL의 유속으로 공급하고, 분당 1 ℃의 승온 속도로 200~300 ℃에서 30분 내지 2시간 유지하여 수행되는 것을 특징으로 하는 금속산화물-탄소입자-탄소나노섬유복합체 제조방법.
- 제 4 항에 있어서,
상기 탄화는 분당 5 ℃의 승온 속도로 750 ~ 850 ℃까지 승온 한 후 불활성 기체 분위기에서 30분 내지 2시간 유지하여 수행되는 것을 특징으로 하는 금속산화물-탄소입자-탄소나노섬유복합체 제조방법.
- 제 4 항에 있어서,
상기 탄소나노섬유전구체 물질은 폴리 아크릴로 니트릴(polyacrylo nitrile, PAN), 폴리이미드(polyimide), 폴리벤조이미다졸(polybenz imidazole, PBI), 피치로 구성된 그룹에서 선택되는 어느 하나인 것을 특징으로 하는 금속산화물-탄소입자-탄소나노섬유복합체 제조방법.
- 삭제
- 삭제
- 제 1 항 의 금속산화물-탄소입자-탄소나노섬유복합체 또는 제 4 항 내지 제 10 항 중 어느 한 항의 제조방법으로 제조된 금속산화물-탄소입자-탄소나노섬유복합체로 구성된 전극을 포함하는 고용량수퍼캐패시터.
- 제 13 항에 있어서,
상기 수퍼캐패시터의 비축전용량은 112에서 145 F/g이고, 에너지밀도는 14.59에서 18.49 Wh/kg인 것을 특징으로 하는 고용량수퍼캐패시터.
- 제 1 항의 금속산화물-탄소입자-탄소나노섬유복합체 또는 제 4 항 내지 제 10 항 중 어느 한 항의 제조방법으로 제조된 금속산화물-탄소입자-탄소나노섬유복합체를 음극으로 포함하는 이차전지.
- 제 15 항에 있어서,
상기 이차전지의 충방전 20사이클 동안 400 내지 600mAh/g 사이의 가역용량을 유지하는 것을 특징으로 하는 이차전지.
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