Title:
CARBON NANOTUBE DISPERSION AND USE THEREOF
Document Type and Number:
Japanese Patent JP2022063234
Kind Code:
A
Abstract:
To provide a carbon nanotube dispersion that has high dispersibility and elastic moduli in order to obtain an electrode film with excellent electrode strength and electrical conductivity, a carbon nanotube resin composition, and mixture slurry, and a nonaqueous electrolyte secondary battery having excellent rate properties and cycle characteristics.SOLUTION: A CNT dispersion includes carbon nanotubes, a dispersant, and a solvent. In a Raman spectrum of a CNT, the CNT has a G/D ratio of 5-100 where G is a maximum peak intensity in a range of 1560-1600 cm-1 and D is a maximum peak intensity in a range of 1310-1350 cm-1. Relative to the CNT 100 pts.mass, a dispersant is contained in a ratio of 30 pts.mass or more and less than 250 pts.mass. The CNT dispersion has a complex modulus of 5 Pa or more and less than 650 Pa and a phase angle of 5° or more and less than 50°. The CNT has a BET specific surface area of 550-1200 m2/g.SELECTED DRAWING: Figure 1
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Inventors:
MORITA TAKESHI
OKA NAOTO
IZUMIYA TETSURO
MASUOKA TOMOAKI
OKA NAOTO
IZUMIYA TETSURO
MASUOKA TOMOAKI
Application Number:
JP2021160281A
Publication Date:
April 21, 2022
Filing Date:
September 30, 2021
Export Citation:
Assignee:
TOYO INK SC HOLDINGS CO LTD
International Classes:
H01B1/24; C01B32/174; H01M4/02; H01M4/04; H01M4/13; H01M4/139; H01M4/62