The present invention relates to an article suitable to act as a thermal switch device, the article having a surface resistance of more than 10.sup.5 ohms and formed from a polymer composition comprising from 50 to 99.9 wt % relative to the total weight of the polymer composition, of a polymer being selected from an amorphous polymer having a glass transition temperature Tg, a semi-crystalline polymer having a melting temperature Tm or a mixture thereof, and from 0.1 to 50 wt % relative to the total weight of the polymer composition, of a conductive material, wherein the surface resistance of the article is divided by at least 10, preferably by at least 100, when said article is submitted for a determined period of time of less than 5 minutes to a temperature of switch i) ranging from Tg+10 C. to Tg+250 C. if the polymer composition comprises an amorphous polymer, or ii) ranging from Tm80 C. to Tm+250 C. if the polymer composition comprises a semi-crystalline polymer.

The present invention relates to a process for preparing a shaped composite article comprising a polymer composition and carbon particles being carbon nanotubes or graphene, said polymer composition comprising a mixture of a first polymer and a second polymer, and the composite article comprises from 0.01 to 4% by weight of carbon particles based on the total weight of the composite article as determined according to ISO 11358, characterized in that said process comprises the steps of providing a masterbatch comprising the first polymer and at least 5% of carbon particles by weight of the masterbatch as determined according to ISO 11358, providing the second polymer, and blending and shaping, in the same step, the masterbatch and the second polymer in a single extrusion or injection moulding device to form said shaped composite article.

A method of manufacturing a semiconductor package including coating a flux on a connection pad provided on a first surface of a substrate, the flux including carbon nanotubes (CNTs), placing a solder ball on the connection pad coated with the flux, forming a solder layer attached to the connection pad from the solder ball through a reflow process, and mounting a semiconductor chip on the substrate such that the solder layer faces a connection pad in the semiconductor chip may be provided.

In this invention, processes which can be used to achieve stable doped carbon nanotubes are disclosed. Preferred CNT structures and morphologies for achieving maximum doping effects are also described. Dopant formulations and methods for achieving doping of a broad distribution of tube types are also described.

A general method of manufacturing high strength ultrafine grained nanostructured carbon and carbide materials that combines densification of nanoparticles with heat treatments or other means of supplying energy to cause fusion of structures that interlink and weld the nanoparticles together. Coatings films, nanopaper, nanopaper laminates, fibers, and extended objects can be manufactured by applying the disclosed methods. The nanomaterials are useful for additive manufacturing of rapid prototyped objects. A variety of nanoparticle starting materials are divulged including but not limited to double walled carbon nanotubes, fluorinated graphene nanosheets, silicon nanowires, and boron nanoplatelets. Articles can be manufactured with spark plasma synthesis, capacitive discharge sintering, hot press apparatus and green bodies can be processed in furnaces. The nanomaterials and ultra high strength articles manufactured from them will have applications including laparoscopic instruments, structural composites, heat sinks, EMI shielding, ballistic protection and aerospace components.

The present invention relates to a method of manufacturing an electrode current collector for a secondary battery and an electrode including an electrode current collector manufactured using the method. In particular, provided herein are a method of manufacturing an electrode current collector for a secondary battery which includes forming a CNT coating layer on a surface of an electrode current collector to increase electrical conductivity, and an electrode including an electrode current collector manufactured according to the method.

Disclosed is a composite resin material which includes a fluororesin and fibrous carbon nanostructures, wherein the composite resin material has a fluororesin content of 70% by mass or more and a fibrous carbon nanostructure content of 0.01% to 0.5% by mass based on the amount of the fluororesin, and wherein when a 50 m thick shaped product obtained by shaping the composite resin material is observed with an optical microscope, the number of aggregates that contain the fibrous carbon nanostructures as a main component and have a diameter of 300 m or more is 3 or less in a 30 mm30 mm field of view.

A conductive composite including: a polymer matrix including a microcellulose fiber; and at least two conductive nanomaterials dispersed in the polymer matrix, wherein the conductive nanomaterial includes a metal nanowire, wherein the at least two of the conductive nanomaterials provide an assembled layer surrounding a surface of the microcellulose fiber.

Composite material comprising nano-objects made of at least one first electron conducting material and nano-objects or submicron objects made of at least one second material differing from the first material; said composite material comprising nanostructures each consisting of the nano-objects made of at least one first electron conducting material marked with a first molecule, the nano-objects or submicron objects made of at least one second material differing from the first material being marked with a second molecule and being self-assembled and attached onto the nano-objects made of at least one first material by specific recognition between the first molecule and the second molecule, said nanostructures being homogeneously distributed in the material, the nano-objects made of at least one first electron conducting material being selected from among carbon nanotubes and carbon fibres, and the nano-objects or submicron objects made of at least one second material differing from the first material being selected from among silicon nanoparticles and submicron silicon particles.

Process to prepare said nanocomposite material.

Ink comprising said composite material.

Electrode comprising said composite material as electrochemically active material.

Electrochemical system in particular a lithium ion storage battery comprising said electrode.

A method for forming electrical contacts for a solar cell and a solar cell formed using the method is provided. The method includes forming a first metal layer over predefined portions of a surface of the solar cell; depositing a carbon nanotube layer over the first metal layer; and forming a second metal layer over the carbon nanotube layer, wherein the first metal layer, the carbon nanotube layer, and the second metal layer form a first metal matrix composite layer that provides electrical conductivity and mechanical support for the metal contacts.