Chemical Prelithiation of Negative Electrodes in Ambient Air for Advanced Lithium-Ion Batteries
| Autor: | Dan Liu, Gongwei Wang, Tianyao Ding, Feifei Li, Yang Luo, Deyang Qu, Deyu Qu, Dong Zheng |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Inorganic chemistry chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Redox 0104 chemical sciences chemistry.chemical_compound chemistry Reagent Electrode General Materials Science Lithium 0210 nano-technology Carbon Faraday efficiency Tetrahydrofuran |
| Zdroj: | ACS Applied Materials & Interfaces. 11:8699-8703 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.8b19416 |
| Popis: | This study reports an ambient-air-tolerant approach for negative electrode prelithiation by using 1 M lithium-biphenyl (Li-Bp)/tetrahydrofuran (THF) solution as the prelithiation reagent. Key to this strategy are the relatively stable nature of 1 M Li-Bp/THF in ambient air and the unique electrochemical behavior of Bp in ether and carbonate solvents. With its low redox potential of 0.41 V vs Li/Li+, Li-Bp can prelithiate various active materials with high efficacy. The successful prelithiation of a phosphrous/carbon composite electrode and the notable improvement in its initial Coulombic efficiency (CE) demonstrates the practicality of this strategy. |
| Databáze: | OpenAIRE |
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