石墨烯
阴极
电化学
材料科学
电流密度
化学工程
阳极
电池(电)
拉曼光谱
X射线光电子能谱
锂(药物)
纳米技术
电极
化学
物理化学
物理
医学
功率(物理)
光学
量子力学
内分泌学
工程类
作者
Hoa Thi Bui,Hyungil Jang,Joong-Hee Han,Torsten Markus,Moon-Gyu Sung,Vishnu V. Kutwade,Supriya A. Patil,Nabeen K. Shrestha,Ramphal Sharma,Sung‐Hwan Han
标识
DOI:10.1016/j.est.2023.108295
摘要
Since the SSe combination as electrodes in batteries, hybrid composites for lithium sulfur‑selenium (LiS-Se) batteries have attracted substantial attention. In this work, we have synthesized MoSSe- multilayered graphene (MLG) (with two different ratios of S: Se precursor) by solvothermal method followed by the calcination of trapped organic solvent molecules at 800 °C to give graphene multilayer inside the 2D-MoSSe. As synthesized MoSSe-MLG-1 and MoSSe-MLG-2 were characterized by SEM, TEM, X-ray diffraction (XRD), XPS, and Raman techniques. Furthermore, MoSSe-MLG-1 and MoSSe-MLG-2 are attributed to in situ generated Li2SxSey active cathode material for advanced high-performance hybrid LiS-Se battery through the electrochemical lithiation of MoSSe-MLG-1 and MoSSe-MLG-2 structure at voltage down to 0.01 V vs Li+/Li. The ultra-fast reversible specific capacity for LiS-Se hybrid batteries was observed in the rate capability test: the specific capability was 1197mAh/g and recovered 1208mAh/g at current density 0.1A/g for MoSSe-MLG-1. The outstanding specific capacitance was obtained to 206mAh/ g of active material at the super high current density of 20A/g. After the hash rate capability test, the same cell showed a stable performance of 1000 cycles at the current density of 5A/g. There was no capacity fading after the full test with the 1197mAh/g at the current density of 0.1A/g.
科研通智能强力驱动
Strongly Powered by AbleSci AI