Double decomposition electrodialysis device for preparing lithium acetate

The utility model discloses a double-decomposition electrodialysis device for preparing lithium acetate, which comprises a reaction chamber, a first raw material tank, a second raw material tank, a first product tank and a second product tank, the interior of the reaction chamber is divided into a first raw material chamber, a first product chamber, a second raw material chamber, a second product chamber and a third raw material chamber through a first cation exchange membrane, a first anion exchange membrane, a second cation exchange membrane and a second anion exchange membrane which are sequentially arranged at intervals; an anode plate opposite to the first cation exchange membrane is mounted in the first raw material chamber, and a cathode plate opposite to the second anion exchange membrane is mounted in the third raw material chamber; according to the double-decomposition electrodialysis device for preparing the lithium acetate, the cation exchange membrane and the anion exchange membrane are arranged