化工矿物与加工2024，Vol.53Issue(1)：1-7,7.DOI:10.16283/j.cnki.hgkwyjg.2024.01.001
电辅助吸附法提锂电极循环稳定性试验研究
Experimental study on electrode cycle stability of electro-assisted ion adsorption lithium recovery
单坤鹏 1洪子鑫 2毛铭冉 1胡雪蛟 1江海峰1
作者信息
- 1. 武汉大学 水力机械过渡过程教育部重点实验室,湖北 武汉 430072||武汉大学 动力与机械学院,湖北 武汉 430072
- 2. 武汉大学 水力机械过渡过程教育部重点实验室,湖北 武汉 430072||武汉大学 动力与机械学院,湖北 武汉 430072||中国海油集团能源经济研究院,北京 100010
- 折叠
摘要
Abstract
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.关键词
电辅助吸附法/提锂/循环稳定性/阳离子混排/截止电压/电场调控/晶粒Key words
electroassisted adsorption method/lithium extraction/cyclic stability/cation mixed discharge/cutoff voltage/electric field regulation/grain分类
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单坤鹏,洪子鑫,毛铭冉,胡雪蛟,江海峰..电辅助吸附法提锂电极循环稳定性试验研究[J].化工矿物与加工,2024,53(1):1-7,7.
