Patent ID: 11909035
Assignee: BTR NEW MATERIAL GROUP CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 8:
9. The method according to claim 8, wherein in the step 1, the solvent is selected from the group consisting of water, methanol, ethanol, polypyrrolidone, isopropanol, tetrahydrofuran, ethyl acetate, N,N-dimethylacetamide, N,N-dimethylformamide, n-hexane, halogenated hydrocarbon, and combinations thereof, optionally selected from the group consisting of ethanol, polypyrrolidone, isopropanol, tetrahydrofuran, ethyl acetate, N,N-dimethylformamide, and combinations thereof.