2results about "Immersion cells" patented technology

The application discloses a PSPEEK / COF composite membrane for reverse electrodialysis technology and a preparation method thereof, and belongs to the technical field of renewable energy extraction. First, sulfonated polyether ether ketone material is synthesized by using ether ether ketone and concentrated sulfuric acid, then a porous sulfonated polyether ether ketone casting solution is prepared by adding a solvent and polyethylene glycol 400, then a COF membrane is formed above the PSPEEK casting solution by using an interfacial polymerization method, finally, the PSPEEK / COF composite membrane is obtained by removing the solvent and polyethylene glycol 400. The COF membrane with inherent pore transmission channels is prepared first, and the COF membrane is used for selectively conducting cations. The mechanical stability of the COF membrane is improved by combining the COF membrane with the PSPEEK substrate. The prepared membrane has high salt difference power generation performance and long service life.

The application relates to a magnesium seawater battery device, belonging to the technical field of electrochemical energy sources. The device comprises a preset number of positive electrodes and negative electrodes which are installed on a support structure, characterized in that the positive electrodes and the negative electrodes are all in the shape of straight strips and are all perpendicular to the same reference plane; the positive electrodes are arranged in a ring shape, and the negative electrodes are arranged in a ring shape; all the positive electrodes are arranged in an outer ring, and all the negative electrodes are arranged in an inner ring; or all the positive electrodes are arranged in the inner ring, and all the negative electrodes are arranged in the outer ring; the positive electrodes are carbon brush electrodes, and the negative electrodes are magnesium alloy negative electrodes; the positive electrodes and the negative electrodes are both connected to a current collection module. The device can significantly improve the flowability of seawater, thereby improving the contact efficiency of the electrodes and the electrolyte.