Patent ID: 9546430
Date: 2017-01-17
CPC Classifications: C25C

Claim:
1. A lithium recovery device comprising: a first electrode including a carrier of which a surface is coated with an adsorbent containing a manganese oxide; a second electrode immersed in a lithium-containing fluid, positioned to face the first electrode with an interval therebetween, and applied with electricity; and a power supply device applying electricity to the first and second electrodes, and applying a negative polarity (−polarity) and a positive polarity (+polarity) to the first and second electrodes, respectively, and then, changing polarities of the applied electricity to thereby apply the positive polarity (+polarity) to the first electrode and apply the negative polarity (−polarity) to the second electrode, wherein the carrier has a passive-state film formed by degreasing the carrier in a degreasing solution, the carrier has a chemical conversion film formed by immersing the carrier in a film solution in which sulfuric acid and chromium are mixed with each other, and a distal end portion of the carrier is coated with a ceramic material.