| abstract |
A graphene dispersion containing graphene and a solvent, wherein the average thickness of the graphene is 0.3 nm or more and 10 nm or less, the solubility parameter δ of the solvent is 18 MPa 0.5 or more and 28 MPa 0.5 or less, and the graphene concentration is adjusted to 3 wt% A graphene dispersion having a viscosity of 10,000 mPa·s or less at a shear rate of 10 sec −1 and a temperature of 25° C. A graphene dispersion having excellent fluidity and dispersibility and a coating film having excellent coating film uniformity is provided, thereby providing a positive electrode paste capable of improving coating film uniformity and battery life. |