Weiyong Zhang, Long Wang, Lei Huang, Xinping He, Xinqi Liang, Xinhui Xia, Yongqi Zhang, Feng Cao, Minghua Chen, Wangjun Wan, Chen Wang, Yang Xia, Jun Zhang, Wenkui Zhang
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引用次数: 0
Abstract
Construction of advanced carbon material is critical for the development of high-performance lithium–sulfur batteries. In this work, we report Rhizopus hyphae biomass carbon (RHBC) as a host material for the sulfur cathode of lithium–sulfur batteries. The porous structure of the RHBC is optimized through hydrothermal activation using KOH solution. The introduction of RHBC into the cathode not only enhances the electronic conductivity of the sulfur cathode, but also substantially improves the capacity of the active materials. Additionally, the RHBC can effectively relieve the volume expansion problem of the sulfur conversion reaction and maintain structural stability, leading to improved lifetime and capacity. Accordingly, the KOH-activated RHBC/S cathode presents initial discharge specific capacity of 748 mAh/g at current density of 0.1 C. Furthermore, the porous structure facilitates rapid transport of electrons and ions, thereby enabling good high-rate performance.
期刊介绍:
The Journal of Electronic Materials (JEM) reports monthly on the science and technology of electronic materials, while examining new applications for semiconductors, magnetic alloys, dielectrics, nanoscale materials, and photonic materials. The journal welcomes articles on methods for preparing and evaluating the chemical, physical, electronic, and optical properties of these materials. Specific areas of interest are materials for state-of-the-art transistors, nanotechnology, electronic packaging, detectors, emitters, metallization, superconductivity, and energy applications.
Review papers on current topics enable individuals in the field of electronics to keep abreast of activities in areas peripheral to their own. JEM also selects papers from conferences such as the Electronic Materials Conference, the U.S. Workshop on the Physics and Chemistry of II-VI Materials, and the International Conference on Thermoelectrics. It benefits both specialists and non-specialists in the electronic materials field.
A journal of The Minerals, Metals & Materials Society.