公开(公告)号：US20200149195A1

公开(公告)日：2020-05-14

申请号：US16626024

申请日：2018-06-20

申请人： NawaTechnologies

发明人： Pascal Boulanger ,  Thomas Goislard de Monsabert

IPC分类号： D01F9/133 ,  C01B32/164 ,  C01B32/162 ,  H01B1/04

摘要： A method for preparing a cable formed of carbon nanotubes, comprising decomposing at least one carbon precursor compound and at least one precursor compound of a catalyst on a porous substrate (43), in which method continuously:—a first gas stream comprising a precursor of a catalyst is brought into contact with a porous substrate (43);—a second gas stream comprising at least one carbon precursor is brought into contact with said porous substrate (43);—said porous substrate (43) is heated to a temperature leading to the deposition of catalyst particles and the catalytic growth of a carbon nanotube bundle, and preferably between 500° C. and 1000° C.

公开(公告)号：US20210371285A1

公开(公告)日：2021-12-02

申请号：US16330650

申请日：2017-04-25

申请人： NAWATECHNOLOGIES

发明人： Jérémie DESCARPENTRIES

IPC分类号： C01B32/164 ,  B01J8/00 ,  B01J19/14 ,  B01J19/18

摘要： A facility for producing a composite material that includes carbon nanotubes. The facility includes a reaction chamber with an injection device for injecting an active gas mixture (for the growth of the carbon nanotubes) into the interior volume thereof. A transport device is to transport a substrate into the reaction chamber to form the composite material. The injection device may transport the active gas mixture in a first direction into the interior volume. A circulation device is to circulate the active gas mixture, and may transport the active gas mixture into the interior volume in a second direction that is different from the first direction. The circulation device may adopt a first configuration of injection of the active gas mixture into the interior volume of the chamber, and a second configuration of extraction of the active gas mixture from the interior volume.

公开(公告)号：US20210171350A1

公开(公告)日：2021-06-10

申请号：US17269082

申请日：2019-08-20

申请人： Nawatechnologies ,  COMMISSARIAT Á L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES ,  CY CERGY PARIS UNIVERSITÉ ,  UNIVERSITE DE TOURS

发明人： Pierre-Henri Aubert ,  Philippe Banet ,  Aurélien Boisset ,  Léa Darchy ,  Jérémie Descarpentries ,  Fouad Ghamouss ,  Harald Hauf ,  Martine Mayne ,  Mathieu Pinault ,  François Tran Van

IPC分类号： C01B32/162 ,  C01B32/168 ,  H01M4/583 ,  H01M4/62 ,  H01M4/04 ,  H01G11/36 ,  H01G11/86

摘要： A method for providing a substrate made of a porous carbonaceous material with vertically aligned carbon nanotubes, the method having a first step of depositing a ceramic underlayer on the substrate followed by a second step of synthesizing, by catalytic chemical vapour deposition, the vertically aligned carbon nanotubes on the substrate obtained after the first step, the carbon source necessary for the synthesis during this second step being injected in a direction substantially perpendicular to the plane of the substrate and at a pressure less than 8104 Pa (800 mbar). The use of the substrate for preparing an electrode such as a supercapacitor electrode.

公开(公告)号：US20200148539A1

公开(公告)日：2020-05-14

申请号：US16626029

申请日：2018-06-20

申请人： NawaTechnologies

发明人： Pascal Boulanger ,  Thomas Goislard de Monsabert

IPC分类号： C01B32/162 ,  C01B32/05 ,  D01F9/127 ,  D01F9/133 ,  C23C16/26

摘要： A method for preparing carbon nanotubes, nanofibres or nanofilaments by decomposition of at least one carbon precursor in the presence of a catalyst, in which method continuously:—a first gas stream comprising a precursor of a catalyst is brought into contact with a porous substrate (43);—a second gas stream comprising at least one carbon precursor is brought into contact with said porous substrate (43);—said porous substrate (43) is heated to a temperature leading to the deposition of catalyst particles and to the catalytic growth of carbon nanotubes.

公开(公告)号：US20200227210A1

公开(公告)日：2020-07-16

申请号：US16642369

申请日：2018-08-23

申请人： NAWATECHNOLOGIES ,  COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES ,  UNIVERSITE DE TOURS

发明人： Jérémie DESCARPENTRIES ,  Cédric DESGRANGES ,  Aurélien Boisset ,  Martine MAYNE ,  Mathieu PINAULT ,  François TRAN VAN ,  Fouad GHAMOUSS

IPC分类号： H01G11/36 ,  C01B32/162 ,  H01G11/24 ,  H01G11/86

摘要： A composite comprises vertically aligned carbon nanotubes (VACNT) on a substrate and additional disordered carbon deposited on the outer face of the nanotubes. This additional carbon is not amorphous but comprises graphitic domains. This composite can be prepared by a chemical vapor deposition (CVD) process in the presence of a catalyst on a metal substrate at atmospheric pressure. It can be used as an electrode in electronic and electrotechnical devices, such as supercapacitors.

公开(公告)号：US20200067096A1

公开(公告)日：2020-02-27

申请号：US16488798

申请日：2018-02-28

申请人： NAWATECHNOLOGIES ,  COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES ,  UNIVERSITÉ DE CERGY-PONTOISE ,  UNIVERSITÉ FRANÇOIS RABELAIS

发明人： Pierre-Henri Aubert ,  Philippe Banet ,  Aurélien Boisset ,  Léa Darchy ,  Jérémie Descarpentries ,  Fouad Ghamouss ,  Harald Hauf ,  Martine Mayne ,  Mathieu Pinault ,  François Tran Van ,  Thomas Vignal

IPC分类号： H01M4/60 ,  H01M4/04 ,  H01M4/66

摘要： A method for the preparation of an electrode comprising a substrate made of an aluminium based material, vertically aligned carbon nanotubes and an electrically conductive polymer matrix, the method comprising the following successive steps: (a) synthesising, on a substrate made of an aluminium based material, a carpet of vertically aligned carbon nanotubes according to the technique of CVD (Chemical Vapour Deposition) at a temperature less than or equal to 650° C.; (b) electrochemically depositing the polymer matrix on the carbon nanotubes from an electrolyte solution including at least one precursor monomer of the matrix, at least one ionic liquid and at least one protic or aprotic solvent. Further disclosed is the prepared electrode and a device for storing and returning electricity such as a supercapacitor comprising the electrode.

公开(公告)号：US11358867B2

公开(公告)日：2022-06-14

申请号：US16330650

申请日：2017-04-25

申请人： NAWATECHNOLOGIES

发明人： Jérémie Descarpentries

IPC分类号： C01B32/164 ,  B01J19/18 ,  B01J8/00 ,  B01J19/14

摘要： A facility for producing a composite material that includes carbon nanotubes. The facility includes a reaction chamber with an injection device for injecting an active gas mixture (for the growth of the carbon nanotubes) into the interior volume thereof. A transport device is to transport a substrate into the reaction chamber to form the composite material. The injection device may transport the active gas mixture in a first direction into the interior volume. A circulation device is to circulate the active gas mixture, and may transport the active gas mixture into the interior volume in a second direction that is different from the first direction. The circulation device may adopt a first configuration of injection of the active gas mixture into the interior volume of the chamber, and a second configuration of extraction of the active gas mixture from the interior volume.

公开(公告)号：US20210110981A1

公开(公告)日：2021-04-15

申请号：US16500181

申请日：2018-04-03

申请人： NAWATECHNOLOGIES

发明人： Jesus Salvador JAIME FERRER ,  Thomas GOISLARD DE MONSABERT

IPC分类号： H01G11/86 ,  H01G11/52 ,  H01G11/62 ,  H01G11/80 ,  H01G11/36 ,  H01G11/48

摘要： Process for manufacturing an electrochemical capacitor comprising, in a leaktight casing: two electrodes, namely a positive electrode and a negative electrode, a separator that separates the two electrodes, and a liquid electrolyte. The process comprises the deposition of a conductive polymer by electropolymerization on at least one of said electrodes. The electropolymerization being carried out after the two electrodes and the separator have been positioned in said casing. Furthermore, the positive or negative electrodes comprise nano-objects selected from nanopowders, elongated nano-objects, nanofibers, nanotubes, carbon nanotubes, mats of vertically aligned carbon nanotubes, graphene and graphene derivatives.