| 摘要 |
The invention relates to a method to prepare a coated current collector electrode of a flow through capacitor. The method comprising preparing a coating paste comprising: • 10 - 50 weight % of carbon having a specific surface area of at least 500 m2/g; • 0.3 - 5 weight % of a binder; • 10 - 50 weight % based on the total paste of a first solvent having a first • boiling point; and, • 10 - 50 weight % based on the total paste of a second solvent having a second • boiling point, the second boiling point being lower than the first boiling point; • applying the coating paste on a current collector; and, • allowing the second solvent in the coating paste applied on the current collector to evaporate at a temperature lower than the first boiling point. The method further comprises applying the coating paste on a current collector; and, allowing the second solvent in the coating paste applied on the current collector to evaporate at a temperature lower than the first boiling point. Furthermore, the invention relates to an apparatus for removal of ions, the apparatus comprising a water inlet, a water outlet, a first and second coated current collector, a spacer for separating the current collectors and allowing water to flow in between. |
