Department of Mechanical Engineering , University of Wisconsin Milwaukee , Milwaukee , Wisconsin 53211 , United States.
Department of Chemistry, Chemical Engineering and Life Sciences , Wuhan University of Technology , 122 Luoshi Road , Wuhan 430070 , P. R. China.
ACS Appl Mater Interfaces. 2019 Mar 6;11(9):8699-8703. doi: 10.1021/acsami.8b19416. Epub 2019 Feb 21.
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.
本研究报告了一种环境空气容忍的负极预锂化方法，使用 1 M 锂联苯（Li-Bp）/四氢呋喃（THF）溶液作为预锂化试剂。该策略的关键在于 1 M Li-Bp/THF 在环境空气中的相对稳定性质，以及 Bp 在醚和碳酸盐溶剂中的独特电化学行为。由于其 0.41 V 相对于 Li/Li 的低氧化还原电位，Li-Bp 可以高效地预锂化各种活性材料。磷/碳复合材料电极的成功预锂化及其初始库仑效率（CE）的显著提高证明了该策略的实用性。
