Commissariat a L'energie Atomique Et Aux Energies Alternatives

Universite De Tours

Cy Cergy Paris Universite

Nawa Technologies

Valeo Equipements Electriques Moteur

Institut Vedecom

Université De Cergy Pontoise

Philippe Banet

Mathieu Pinault

Odile Fichet

Linda Chikh

Jérémie Descarpentries

Martine Mayne

Harald Hauf

Léa Darchy

Aurélien Boisset

Pierre-Henri Aubert

Fouad Ghamouss

François Tran Van

Thomas Fouet

Thomas Vignal

Arnaud Soisson

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.

Method for preparing a porous carbonaceous substrate having carbon nanotubes on its surface and its body

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&#xb0; 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.

Method for the preparation of an electrode comprising an aluminium substrate, aligned carbon nanotubes and an electroconductive organic polymer, the electrode and uses thereof

The invention relates to an electronic component () comprising at least one semiconductor chip () and at least one substrate (), the semiconductor chip () being encapsulated in a polyorganosiloxane resin (), which is the result of hardening a composition comprising at least: one portion (A) comprising at least one polyorganosiloxane (A1) which contains at least two &#x2014;CH&#x2550;CHreactive groups per molecule; one portion (B) comprising a polyorganosiloxane (B1) which comprises at least two Si&#x2014;H groups per molecule; and at least one hydrosilation catalyst (C1), the components (A1) and (B1) being in quantities such that the molar ratio of Si&#x2014;H/&#x2014;CH&#x2550;CHin the composition is no lower than 0.4.

Encapsulation of electronic components in polymer materials

In order to carry out the encapsulation of electronic components, the invention proposes to cover the electronic components () with a heat-polymerisable material corresponding to a composition comprising a diimide constituent and a diamine constituent, in which the diimide constituent has been predissolved in the diamine constituent, and to heat the assembly obtained under conditions suitable for carrying out the curing of the material by an addition polymerization reaction between said diimide constituent and the diamine constituent. The invention finds an application in particular in the field of electronic power modules.

Process of encapsulating electronic components

Growing community of inventors

Acheres, France

Philippe Banet