公开(公告)号：US20170197839A1

公开(公告)日：2017-07-13

申请号：US15316775

申请日：2015-06-10

Applicant: HUTCHINSON

Inventor： Hugo DORIE ,  David AYME-PERROT ,  Philippe SONNTAG ,  Bruno DUFOUR

IPC: C01B31/02 ,  C08G73/06 ,  H01G11/34

CPC classification number: H01G11/34 ,  C01B32/05 ,  C01B32/342 ,  C01B32/382 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/40 ,  C08G8/22 ,  C08G73/0683 ,  C08G2210/00 ,  H01G11/24 ,  H01G11/32 ,  H01G11/44 ,  Y02E60/13 ,  Y02T10/7022

Abstract: The invention relates to a gelled aqueous polymer composition for forming, by means of drying then pyrolysis, a monolithic porous carbon, to a pyrolysed carbonated composition produced by the drying, followed by the pyrolysis, of said gelled composition, to a porous carbon electrode for a supercapacitor comprising said pyrolysed composition, and to methods for producing said respectively gelled and pyrolysed compositions. A gelled composition according to the invention, produced from the polycondensation of polyhydroxybenzene(s) and hexymethylenetetramine, is such that the hexymethylenetetramine comprised therein represents a mass fraction of between 7% and 15% inclusive. Said gelled composition is produced by a) polycondensation in an aqueous solvent of the polyhydroxybenzene(s) and hexymethylenetetramine, followed by b) gelling by heating of said polycondensate.

公开(公告)号：US20160340476A1

公开(公告)日：2016-11-24

申请号：US15112990

申请日：2014-02-19

Applicant: HUTCHINSON

Inventor： Philippe SONNTAG ,  David AYME-PERROT ,  Bruno DUFOUR ,  Arnaud PREBE ,  Nicolas GAROIS

IPC: C08J3/20 ,  H01M10/054 ,  H01M4/04 ,  H01M4/139 ,  H01M4/58 ,  C08J9/00 ,  H01M4/62 ,  H01F1/34 ,  C08L69/00 ,  C08J3/00 ,  C08J9/26 ,  H01M10/0525 ,  H01M4/485

Abstract: A process for preparing a polymeric composition for forming a lithium-ion or sodium-ion battery electrode or a supercapacitor electrode or for exhibiting magnetic properties, to such a polymeric composition obtained by means of this process, to a mixture which is a precursor of the composition, obtained by means of a first mixing step of the process, and to this electrode.The process for preparing this composition comprises: a) hot-mixing, via the melt process and without solvent, at least one active material, a binder-forming polymeric phase and a sacrificial polymeric phase so as to obtain a mixture, and b) at least partially eliminating said sacrificial polymeric phase so as to obtain said composition which comprises the active material(s) according to a weight fraction greater than 80%. The sacrificial phase is used in step a) according to a weight fraction in the mixture being greater than or equal to 15%.

Abstract translation: 牺牲阶段根据混合物中的重量分数大于或等于15％在步骤a）中使用。

公开(公告)号：US20190165366A1

公开(公告)日：2019-05-30

申请号：US16320603

申请日：2017-07-21

Applicant: HUTCHINSON

Inventor： Philippe SONNTAG ,  Julie COURTAT ,  Marc ZIMMERMANN ,  Ksenia ASTAFYEVA ,  Bruno Dufour ,  David AYME-PERROT

IPC: H01M4/133 ,  H01M4/62 ,  H01M4/1393 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/587

Abstract: Polymer composition for an electrode, method, and a lithium-ion battery including same are provided. This composition includes an active material having a graphite usable in the anode, an electrically conductive filler and a cross-linked elastomer binder that includes a hydrogenated acrylonitrile butadiene copolymer (HNBR). The binder includes a non-hydrogenated acrylonitrile butadiene copolymer (NBR) and/or an HNBR with an acrylonitrile content that is at least 40% by weight and cross-linked by thermal oxidation. This method includes: a) mixing the active material, the binder in a non-cross-linked state and the electrically conductive filler, to obtain a precursor mixture of the composition, b) depositing the mixture on a metal current collector so that the mixture forms a non-cross-linked film, then c) thermal oxidation of the non-cross-linked film under an atmosphere containing oxygen at a temperature of between 200 and 300° C., to obtain the electrode in which the binder is cross-linked.

公开(公告)号：US20180291172A1

公开(公告)日：2018-10-11

申请号：US15566238

申请日：2016-04-07

Applicant: HUTCHINSON

Inventor： Arnaud PREBE ,  Bruno DUFOUR ,  David AYME-PERROT ,  Yannick BUREAU ,  Philippe SONNTAG

IPC: C08J9/26 ,  C09K5/14 ,  C08F20/44 ,  C08F36/06 ,  C08J9/00 ,  B29C67/20

Abstract: Porous polymeric materials having a very high content of thermally conductive and/or electrically conductive fillers. Process for the preparation of the porous composite material including at least one binder-forming polymeric phase and one or more fillers, this process including the stages of hot mixing, by the molten route, the polymeric phase, the fillers and a sacrificial polymeric phase, so as to obtain a mixture, of shaping the mixture and of removing the sacrificial polymeric phase.