电辅助吸附法提锂电极循环稳定性试验研究OA

Electroassisted adsorption is an important method for lithium extraction from salt lakes,the core of which is the adsorption electrode.The cyclic stability of the adsorption electrode in the process of multiple lithium extraction will significantly affect its service life,and then affect the operating cost of lithium extraction.However,research on lithium extraction using electro assisted adsorption mostly focuses on the performance of adsorption electrodes for sin-gle lithium extraction,ignoring the influence of electrode cycling stability.Based on this,the ion capture system test in the electro assisted adsorption method was carried out,and a physical model of electrode shedding in the process of multiple lithium extraction cycles was proposed,that is,in the process of multiple cycles,the primary grain of the ter-nary electrode cracks first,exposing the internal secondary grain,and excessive voltage will lead to cracks and failure of the secondary grain.The cyclic stability of the electrode material can be better maintained by controlling the cut-off voltage in the process of adsorption and dissociation below 1 V.