The invention relates to the technical field of
capacitance deionization devices, in particular to a high-efficient and energy-saving
capacitance deionization device, which is characterized in that an
ion exchange membrane (2) is added between a partition board (1) and an
electrode (3); water ports (7) are arranged on both an upper support plate and a lower support plate (6); and the upper water port and the lower water port are arranged in a staggered manner. Compared with the prior art, the device adopts compact and multiporous carbon-based material as
capacitance deionization electrodes, and adds the
ion exchange membrane, so that the device is thin and light, the structure is optimized, the absorption performance is improved, and the
voltage imposed on the
electrode in operation is reduced; therefore, the
energy consumption, the manufacture cost and the use cost of the device are greatly reduced, the
ion absorption efficiency is high, the stability is good, the service life is long, the
power consumption is low, the response speed is high, the device can be used repeatedly, etc.