电源技术2024，Vol.48Issue(8)：1572-1579,8.DOI:10.3969/j.issn.1002-087X.2024.08.019
黑磷烯改性膜的制备及其锂硫电池性能
Preparation of black phosphorene-modified separator and its lithium-sulfur battery performance
摘要
Abstract
Lithium-sulfur batteries have attracted significant attention in the field of batteries due to their high energy density,low cost,and non-toxicity,making them one of the most promising battery technologies. However,the application of lithium-sulfur batteries has been plagued by serious capac-ity fading primarily stemming from the pronounced shuttle effect of polysulfides. To address this is-sue,this study synthesized black phosphorus nanosheets to modify commercial polypropylene separa-tors and investigate the impact of black phosphorus on the performance of lithium-sulfur batteries. The results reveal that black phosphorus exhibits excellent adhesion to the commercial separator,and the modification increases the liquid absorption of the separator,accelerating ion diffusion in the elec-trolyte and effectively suppressing the shuttle effect. The lithium-sulfur battery with the black phosphorene-modified separator achieves an initial discharge specific capacity of 943 mAh/g at 0.05 C,and demonstrates stable cycling performance exceeding 200 cycles at 0.1 C,leading to a significant enhancement in battery performance.关键词
锂硫电池/黑磷烯/改性隔膜/穿梭效应Key words
lithium-sulfur battery/black phosphorene/modified separator/shuttle effect分类
信息技术与安全科学引用本文复制引用
王晨瑶,翁海瑞,李明娟,孙陆毅,杨惟韧,李媛,陈鑫智..黑磷烯改性膜的制备及其锂硫电池性能[J].电源技术,2024,48(8):1572-1579,8.基金项目
国家自然科学基金项目(21968011) （21968011）
云南省基础研究项目(202101BE070001-014) （202101BE070001-014）
