Patent ID: 11931705
Assignee: HYUNDAI MOTOR COMPANY
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  Y | IPC B  C

Claim 0:
1. A system for manufacturing a dispersion liquid of carbon nanotubes, comprising:
a mixing device configured to form an admixture comprising one or more solvents and carbon nanotubes;
a first dispersion device comprising:
a storage tank connected to the mixing device for receipt of an inflow of the admixture therefrom;
a rotor comprising a rotation shaft disposed in an inner center of the storage tank along an inflow direction of the admixture, and operable to rotate in a direction perpendicular to an inflow direction of the admixture; and
a stator disposed within the storage tank and adjacent to the rotor, the stator comprising an open side facing the inflow direction of the admixture, a closed side fixed to the storage tank, and a plurality of penetration holes formed on a circumference surface surrounding the rotor;
wherein the first dispersion device is configured to form perform a primary dispersion of the carbon nanotubes by rotation of the rotor and then a secondary dispersion to form bent portions in the carbon nanotubes while discharging the carbon nanotubes through penetration holes of the stator; and

a second dispersion device configured to perform a tertiary dispersion of the carbon nanotubes to selectively cut the bent portions of the carbon nanotubes by irradiating a laser when the secondarily dispersed admixture recirculates to the mixing device from the first dispersion device.