![]() In particular, carbon nanotubes, which are a type of fine carbon fibers, are tubular carbon with a diameter of 1 μm or less, and their use as conductive materials for lithium ion batteries has been studied because of their high electrical conductivity based on their unique structure (refer to Patent Literature 2, Patent Literature 3, and Patent Literature 4). Accordingly, a slurry for forming an electrode of a lithium ion battery, which contains an electrode active material, a conductive material, a binder, and a polar solvent, and has an average particle size of 500 nm or less when the conductive material is dispersed has been proposed (refer to Patent Literature 1).Īs the conductive material, carbon black, Ketjen black, fullerenes, graphenes, fine carbon materials, and the like are used. In the positive electrode, the electrical conductivity of the active material is enhanced by incorporation of a conductive material, but when dispersion of the conductive material with respect to the active material is insufficient, improvement of electrical conductivity is insufficient. A lithium ion battery generally includes a negative electrode made of a carbon-based material, a positive electrode containing an active material into which lithium ions are reversibly occluded and released, and a non-aqueous electrolyte in which these are immersed, and the positive electrode is manufactured by applying an electrode paste consisting of an active material and a conductive material, and a binder onto a current collector plate. In recent years, lithium ion batteries have been attracting attention with the spread of mobile phones and laptop personal computers or the like. ![]() More specifically, the present invention relates to a carbon nanotube, a carbon nanotube dispersion, a resin composition containing the carbon nanotube dispersion and a resin, a composite material slurry containing the carbon nanotube dispersion, the resin, and an active material, and an electrode membrane coated with the composite material slurry. The present invention relates to a carbon nanotube and a carbon nanotube dispersion. A composite material slurry comprising: the carbon nanotube resin composition according to claim 19 and an active material. ![]() A carbon nanotube resin composition comprising: the carbon nanotube dispersion according to claim 6 and a binder.Ģ0. A carbon nanotube dispersion comprising: the carbon nanotube according to claim 12 a solvent and a dispersant.ġ9. A carbon nanotube dispersion comprising: the carbon nanotube according to claim 11 a solvent and a dispersant.ġ8. A carbon nanotube dispersion comprising: a solvent and a dispersant.ġ7. A carbon nanotube dispersion comprising: the carbon nanotube according to claim 4 a solvent and a dispersant.ġ6. A carbon nanotube dispersion comprising: the carbon nanotube according to claim 3 a solvent and a dispersant.ġ5. A carbon nanotube dispersion comprising: the carbon nanotube according to claim 2 a solvent and a dispersant.ġ4. The carbon nanotube according to claim 3, wherein a carbon purity of the carbon nanotube is 99.5 mass % or more.ġ3. The carbon nanotube according to claim 2, wherein a carbon purity of the carbon nanotube is 99.5 mass % or more.ġ2. The carbon nanotube according to claim 2, wherein an outer diameter of the carbon nanotube is 10 to 15 nm.ġ1. An electrode membrane which is coated with the composite material slurry according to claim 8.ġ0. ![]() A composite material slurry comprising: the carbon nanotube resin composition according to claim 7 and an active material.ĩ. A carbon nanotube resin composition comprising: the carbon nanotube dispersion according to claim 5 and a binder.Ĩ. The carbon nanotube dispersion according to claim 5, wherein the solvent is an amide-based organic solvent or water.ħ. A carbon nanotube dispersion comprising: the carbon nanotube according to claim 1 a solvent and a dispersant.Ħ. The carbon nanotube according to claim 1, wherein a carbon purity of the carbon nanotube is 99.5 mass % or more.ĥ. The carbon nanotube according to claim 1, wherein an outer diameter of the carbon nanotube is 10 to 15 nm.Ĥ. The carbon nanotube according to claim 1, wherein the G/D ratio is 1.8 to 4.5 in the Raman spectrum.ģ. A carbon nanotube which satisfies the following (1) and (2): (1) a peak appears at a diffraction angle 2θ=25°☒° in powder X-ray diffraction analysis, and a half value width of the peak is 2° or more and less than 3°, and (2) a G/D ratio is 1.5 to 5.0, where G represents a maximum peak intensity in a range from 1560 to 1600 cm −1, and D represents a maximum peak intensity in a range from 1310 to 1350 cm −1 in a Raman spectrum.Ģ. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |