CN110662715B - 粗制碳纳米管的提纯方法 - Google Patents

粗制碳纳米管的提纯方法 Download PDF

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Publication number
CN110662715B
CN110662715B CN201880034976.7A CN201880034976A CN110662715B CN 110662715 B CN110662715 B CN 110662715B CN 201880034976 A CN201880034976 A CN 201880034976A CN 110662715 B CN110662715 B CN 110662715B
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carbon nanotubes
crude
cnts
purified
bulk density
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CN110662715A (zh
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A·达尔维彻
M·登蒂格尼
N·孔多
A·盖尔斐
K·扎吉布
J·博索莱伊
A·科尔任科
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Hydro Quebec
Arkema France SA
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    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/15Nano-sized carbon materials
    • C01B32/158Carbon nanotubes
    • C01B32/168After-treatment
    • C01B32/17Purification
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
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    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
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    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/48Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/50Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
    • H01M4/505Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
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    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/48Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/52Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • H01M4/525Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/58Selection 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
    • H01M4/5825Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
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    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/58Selection 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
    • H01M4/583Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • H01M4/587Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
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    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/624Electric conductive fillers
    • H01M4/625Carbon or graphite
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    • C01B2202/00Structure or properties of carbon nanotubes
    • C01B2202/06Multi-walled nanotubes
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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  • Inorganic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
CN201880034976.7A 2017-03-31 2018-03-29 粗制碳纳米管的提纯方法 Active CN110662715B (zh)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201762479688P 2017-03-31 2017-03-31
FR1752749A FR3064623B1 (fr) 2017-03-31 2017-03-31 Processus de purification de nanotubes de carbone bruts
US62/479,688 2017-03-31
FR17/52749 2017-03-31
PCT/IB2018/052192 WO2018178929A2 (fr) 2017-03-31 2018-03-29 Procédé de purification de nanotubes de carbone bruts

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CN110662715A CN110662715A (zh) 2020-01-07
CN110662715B true CN110662715B (zh) 2023-10-27

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US (2) US11661344B2 (https=)
EP (1) EP3601161A2 (https=)
JP (2) JP7171608B2 (https=)
KR (1) KR102666434B1 (https=)
CN (1) CN110662715B (https=)
CA (1) CA3057746C (https=)
FR (1) FR3064623B1 (https=)
WO (1) WO2018178929A2 (https=)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3078201B1 (fr) 2018-02-19 2023-01-13 Arkema France Formulation de matiere active pour accumulateur li-s et procede de preparation
FR3091041A1 (fr) 2018-12-20 2020-06-26 Arkema France Composition conductrice electronique pour batterie au lithium tout solide
CN109502572A (zh) * 2018-12-29 2019-03-22 苏州第元素纳米技术有限公司 碳纳米管提纯方法
FR3094710A1 (fr) 2019-04-05 2020-10-09 Arkema France Procédé de préparation d’une composition pâteuse comprenant des nanotubes de carbone
CN111249765B (zh) * 2020-02-25 2021-04-06 中国科学院化学研究所 一种去除碳材料中金属离子的加压流体提取系统和方法
CN113443617B (zh) * 2021-08-19 2022-11-04 陕西六元碳晶股份有限公司 一种连续式碳纳米管的纯化装置及工艺
CN114014300A (zh) * 2021-11-24 2022-02-08 深圳市飞墨科技有限公司 碳纳米管及其纯化方法
CN115215327B (zh) * 2022-02-23 2023-10-03 无锡东恒新能源科技有限公司 一种用于碳纳米管提纯的装置及方法
CN114590796A (zh) * 2022-02-28 2022-06-07 诺瑞(深圳)新技术有限公司 碳纳米管的纯化方法和碳纳米管浆料的制备方法
US20230391623A1 (en) 2022-06-06 2023-12-07 Indian Oil Corporation Limited Regeant solution for purification of carbon nanomaterials and a method thereof
CN116022775B (zh) * 2022-12-29 2024-02-09 蜂巢能源科技(上饶)有限公司 一种碳纳米管提纯方法及应用
CN116553531B (zh) * 2023-03-28 2025-12-02 东莞瑞泰新材料科技有限公司 一种纯化碳纳米管的方法
CN116462188B (zh) * 2023-05-11 2024-07-23 清华大学 提高碳纳米管纯度的方法及碳纳米管和用途
JP7623560B2 (ja) * 2023-05-19 2025-01-29 中谷産業株式会社 カーボンナノチューブ凝集体及びその製造方法
CN121487894A (zh) * 2023-07-07 2026-02-06 住友化学株式会社 多壁碳纳米管集合体、多壁碳纳米管分散液、导电材料、电极、二次电池、平面状集合体、过滤器、电磁屏蔽体及极紫外用保护膜
KR102796263B1 (ko) * 2023-12-05 2025-04-16 주식회사 나노솔루션 탄소나노튜브의 정제방법
WO2025135042A1 (ja) * 2023-12-22 2025-06-26 住友化学株式会社 炭素および水素の製造方法、及び、炭素繊維
CN119240675A (zh) * 2024-08-27 2025-01-03 甬江实验室 碳纳米管的纯化方法
WO2026079346A1 (ja) * 2024-10-08 2026-04-16 日本ゼオン株式会社 繊維状構造体の製造方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050058797A1 (en) * 2003-09-08 2005-03-17 Nantero, Inc. High purity nanotube fabrics and films
JP2006225245A (ja) * 2005-02-21 2006-08-31 Mitsubishi Heavy Ind Ltd ナノカーボン材料
CN101631744A (zh) * 2007-03-13 2010-01-20 东洋炭素株式会社 含有碳纳米管的碳材料的精制方法及由该精制方法得到的碳材料、以及使用该碳材料的树脂成型体、纤维、散热器、滑动材料、电场电子释放源材料、电极的导电助剂、担载有催化剂的材料及导电性膜
WO2011111499A1 (ja) * 2010-03-12 2011-09-15 東洋炭素株式会社 カーボンナノチューブ集合体及びその製造方法
CN102471067A (zh) * 2009-08-21 2012-05-23 拜尔材料科学股份公司 碳纳米管聚集体
US20120238021A1 (en) * 2011-03-18 2012-09-20 William Marsh Rice University Methods of synthesizing three-dimensional heteroatom-doped carbon nanotube macro materials and compositions thereof
CN105074966A (zh) * 2013-02-22 2015-11-18 拜耳材料科技股份有限公司 含碳纳米管的分散体及其在电极制造中的用途
CN105451883A (zh) * 2013-07-19 2016-03-30 科思创德国股份公司 制造用于生成多壁碳纳米管的有效催化剂的方法、多壁碳纳米管和碳纳米管粉末
WO2017018667A1 (ko) * 2015-07-24 2017-02-02 주식회사 엘지화학 열안정성이 개선된 카본나노튜브

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7090819B2 (en) * 2001-02-12 2006-08-15 William Marsh Rice University Gas-phase process for purifying single-wall carbon nanotubes and compositions thereof
FR2881735B1 (fr) 2005-02-07 2008-04-18 Arkema Sa Procede de synthese de nanotubes de carbone
JP2006225244A (ja) 2005-02-21 2006-08-31 Mitsubishi Heavy Ind Ltd ナノカーボン材料
US8628748B2 (en) * 2007-03-13 2014-01-14 Toyo Tanso Co., Ltd. Purification method for carbon material containing carbon nanotubes, carbon material produced by the same method, and resin molding, fiber, heat sink, slider, material for field electron emission source, conduction aid for electrode, catalyst support
FR2914634B1 (fr) 2007-04-06 2011-08-05 Arkema France Procede de fabrication de nanotubes de carbone a partir de matieres premieres renouvelables
CN101873993A (zh) 2007-07-11 2010-10-27 御国色素株式会社 碳纳米管的造粒产物及其制造方法
DE102007044031A1 (de) * 2007-09-14 2009-03-19 Bayer Materialscience Ag Kohlenstoffnanoröhrchenpulver, Kohlenstoffnanoröhrchen und Verfahren zu ihrer Herstellung
FR2927062B1 (fr) 2008-02-04 2011-07-01 Arkema France Procede de remplissage securise de nanotubes de carbone, systeme de remplissage et installation industrielle mettant en oeuvre le procede.
FR2966815B1 (fr) * 2010-10-28 2013-05-31 Centre Nat Rech Scient Methode de purification de nanotubes de carbone
KR101408950B1 (ko) * 2012-10-18 2014-06-17 주식회사 효성 압축 cnt의 제조방법 및 그에 의한 압축 cnt
KR20140004985U (ko) 2013-03-07 2014-09-17 이성균 수륙양용자전거
CN105271164B (zh) * 2014-07-17 2019-08-20 山东大展纳米材料有限公司 一种连续化制备碳纳米管的装置及方法
CN104900871A (zh) 2015-04-14 2015-09-09 张家港市山牧新材料技术开发有限公司 一种LiFePO4正极材料的制备方法、锂离子电池及其制备方法
KR102002048B1 (ko) * 2015-09-03 2019-07-19 주식회사 엘지화학 카본나노튜브의 정제방법
KR20170032566A (ko) * 2015-09-15 2017-03-23 주식회사 엘지화학 결정성이 개선된 카본나노튜브
WO2020064868A1 (en) 2018-09-25 2020-04-02 Agc Glass Europe Vehicle control device and manufacturing method thereof

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050058797A1 (en) * 2003-09-08 2005-03-17 Nantero, Inc. High purity nanotube fabrics and films
JP2006225245A (ja) * 2005-02-21 2006-08-31 Mitsubishi Heavy Ind Ltd ナノカーボン材料
CN101631744A (zh) * 2007-03-13 2010-01-20 东洋炭素株式会社 含有碳纳米管的碳材料的精制方法及由该精制方法得到的碳材料、以及使用该碳材料的树脂成型体、纤维、散热器、滑动材料、电场电子释放源材料、电极的导电助剂、担载有催化剂的材料及导电性膜
CN102471067A (zh) * 2009-08-21 2012-05-23 拜尔材料科学股份公司 碳纳米管聚集体
WO2011111499A1 (ja) * 2010-03-12 2011-09-15 東洋炭素株式会社 カーボンナノチューブ集合体及びその製造方法
US20120238021A1 (en) * 2011-03-18 2012-09-20 William Marsh Rice University Methods of synthesizing three-dimensional heteroatom-doped carbon nanotube macro materials and compositions thereof
CN105074966A (zh) * 2013-02-22 2015-11-18 拜耳材料科技股份有限公司 含碳纳米管的分散体及其在电极制造中的用途
CN105451883A (zh) * 2013-07-19 2016-03-30 科思创德国股份公司 制造用于生成多壁碳纳米管的有效催化剂的方法、多壁碳纳米管和碳纳米管粉末
WO2017018667A1 (ko) * 2015-07-24 2017-02-02 주식회사 엘지화학 열안정성이 개선된 카본나노튜브

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CA3057746C (fr) 2025-05-20
US11661344B2 (en) 2023-05-30
EP3601161A2 (fr) 2020-02-05
US20230339758A1 (en) 2023-10-26
JP7429760B2 (ja) 2024-02-08
US20210107791A1 (en) 2021-04-15
KR20190135032A (ko) 2019-12-05
JP2023009119A (ja) 2023-01-19
FR3064623B1 (fr) 2025-06-20
WO2018178929A2 (fr) 2018-10-04
JP2020515497A (ja) 2020-05-28
KR102666434B1 (ko) 2024-05-17
CN110662715A (zh) 2020-01-07
JP7171608B2 (ja) 2022-11-15
FR3064623A1 (fr) 2018-10-05
CA3057746A1 (fr) 2018-10-04
WO2018178929A3 (fr) 2018-12-20

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