4 results about "Carbon allotrope" patented technology

A negative electrode precursor for manufacturing a negative electrode having a high utilization rate of a negative electrode active material. A negative electrode precursor to be applied to manufacturing of a negative electrode for a secondary battery, the negative electrode precursor comprising a resin substrate and a particle layer held by the resin substrate, wherein the particle layer includes first particles containing a carbon allotrope and exhibiting conductivity, and second particles containing a material capable of alloying with lithium, and an arrangement of at least one of the first particles and the second particles has a pattern structure having periodicity in a predetermined direction within the particle layer.

Semiconductor device assemblies are provided with one or more layers of thermally conductive material disposed between adjacent semiconductor dies in a vertical stack. The thermally conductive material can be configured to conduct heat generated by one or more of the semiconductor dies in laterally outward towards an outer edge of the assembly. The layer of thermally conductive material can comprise one or more allotropes of carbon, such as diamond, graphene, graphite, carbon nanotubes, or a combination thereof. The layer of thermally conductive material can be provided via deposition (e.g., sputtering, PVD, CVD, or ALD), or via adhering a film comprising the layer of thermally conductive material to one or more of the semiconductor dies.

The present application provides a composition of electrically conductive carbon allotropes dispersed in an organic fluid. The composition comprises: electrically conductive carbon allotropes; hydrogenated nitrile rubber; an organic fluid for dispersing the electrically conductive carbon allotropes and the hydrogenated nitrile rubber; wherein the average curvature of the electrically conductive carbon allotropes is 1°-20°, the average curvature being determined from the average diameter of the electrically conductive carbon allotropes, and the BET surface area of the electrically conductive carbon allotropes is 200 to 1400 m 2 / g; wherein the amount of hydrogenated nitrile rubber is 10wt%-300wt% relative to the weight of the electrically conductive carbon allotropes; and wherein the contour length of the hydrogenated nitrile rubber is below 1400nm. The composition of the present application significantly improves the concentration and dispersibility of the electrically conductive carbon allotropes in the organic fluid by precisely matching the contour length of the HNBR and the average curvature of the electrically conductive carbon allotropes, enables the viscosity of the electrically conductive carbon allotrope dispersion to be maintained at an acceptable level, and enables the storage stability of the dispersion to be good.