Preparation of a Novel Hollow Porous Limno Film Electrode (H-Lmoe) and its Improved Performance for Lithium Recovery at Low Concentration
SSRN, ISSN: 1556-5068
2022
- 232Usage
- 1Captures
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Article Description
The recovery of Lithium from the solution with low Li concentration and other coexisting ions by an energy-saving and high-efficiency method is still a challenge. Herein, a novel hollow porous LiMnO (H-LMO) film electrode has been proposed to enhance the recovery performance of Li. Based on building the unique hollow porous structure, the H-LMO film electrodes (H-LMOs) exhibit excellent lithium electrosorption recovery performance and stability. This unique structural strengthening mechanism also made the H-LMO film electrode maintain a good Li recovery performance even in a solution of low Li concentration of 60 mg/L. The Li electrosorption capacity of the H-LMO film electrode was 2.13 times that of the traditional LiMnO (T-LMO) film electrode(T-LMOE), while the specific energy consumption of the H-LMO film electrode was 16% lower than that of the T-LMO one in a 60 mg/L Li solution, within 21 min. Even in a 10 mg/L Li solution, the electrosorption capacity was 21.48 mg/g, which was 10.0% higher than that of the T-LMO one. Moreover, after 50 recycling processes, H-LMO loses 16.4% of the charge capacity (105.34 mAh/g) and 13.2% of discharge capacity (105.21 mAh/g), and the final capacity of the H-LMO film electrode was about 25.0% higher than that of T-LMO one. Thus, this work successfully provides a new strategy to improve the electrosorption performance of film electrodes and promote the application of lithium extraction from brine in low Li concentration by a green method.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85179528225&origin=inward; http://dx.doi.org/10.2139/ssrn.4122757; https://www.ssrn.com/abstract=4122757; https://dx.doi.org/10.2139/ssrn.4122757; https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4122757; https://ssrn.com/abstract=4122757
Elsevier BV
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