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US 2026/0128318 A1Published application
Coating liquid for electrode formation
AssigneeMitsubishi Pencil Company, Limited
InventorsTakayuki HAYAKAWA, Ryosuke MATSUSHIMA, Satoshi SAKUMA, Hiroshi ABE
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Abstract
A carbon nanotube dispersion may have excellent dispersibility. Such a carbon nanotube dispersion may include at least carbon nanotubes, oxidized cellulose nanofibers, and water, wherein, of the oxidized cellulose nanofibers, 85% or more of the oxidized cellulose nanofibers have a fiber length in a range of from 50 to 250 nm.
Claims18
A coating liquid suitable for electrode layer formation, the coating liquid comprising:
- a carbon nanotube dispersion coating liquid comprising carbon nanotubes, oxidized cellulose nanofibers, an active material, a binder, and water,
- wherein the oxidized cellulose nanofibers have a C═O/C—O peak height ratio, of a peak height attributed to C═O, around 1610 cm−1, to a peak height attributed to C—O, around 1062 cm−1, of 0.70 or less in infrared spectroscopy, or
- wherein the oxidized cellulose nanofibers have a C═O/O—H peak height ratio, of a peak height attributed to C═O, around 1610 cm−1, to a peak height attributed to O—H, around 3340 cm−1, of 1.35 or less in infrared spectroscopy.
Dependencies are inferred from the claim text.