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US 9,853,282 B2Granted
Electrode paste production method
AssigneeToyota Jidosha Kabushiki Kaisha
InventorNaoya Kishimoto
Life of this patent
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Abstract
Provided is an electrode paste production method that can produce a low-viscosity electrode paste which can be readily applied even if the solid content concentration is high, for example in excess of 65% by mass. The electrode paste production method, in which the paste contains an active material and a solvent, includes a micromixing treatment step in which a mixture of a solid fraction containing an active material blended at a high solid content concentration and a solvent is kneaded using a micromixer.
Claims4
A production method for an electrode paste comprising an active material and a solvent,
- the production method comprising a micromixing treatment step in which a mixture of a solid fraction containing the active material blended at a high solid content concentration and the solvent is kneaded using a micromixer, wherein
- the solid content concentration of the mixture exceeds 65% by mass, and
- the micromixer is a kneading device that feeds a slurry into a nozzle portion by a pump, and that performs kneading with a shear energy from not less than 4,000 kJ/L to not more than 16,000 kJ/L which is generated as the slurry passes through the nozzle portion, wherein a diameter of the nozzle portion for the kneading is at a microscale level from 30 μm to 100 μm.
Dependencies are inferred from the claim text.