Construction of SnS2/SnO2 heterostructures with enhanced potassium storage performance
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2020年第20期
论文作者：Guoquan Suo Dan Li Lei Feng Xiaojiang Hou Xiaohui Ye Li Zhang Qiyao Yu Yanling Yang Wei (Alex) Wang
文章页码：167 - 172
摘 要：Increasing attention has been focused on potassium ion batteries（KIBs） as promising energy-sto rage system（ESS） owing to the abundance and low-cost of potassium resources.Here,SnS2/SnO2 hete rostructures were successfully fixed onto stainless steel mesh（SnS2/SnO2/SSM） through a facile two-step hydrothermal method and used as anodes for KIBs.Due to the advantages of SnS2/SnO2 heterostructures and good conductivity of SSM substrate,the SnS2/SnO2/SSM anodes display enhanced electrochemical performance.The SnS2/SnO2/SSM anodes deliver specific capacity of 394 mA h g-1 at 50 mA g-1 over 100 cycles,better than SnO2/SSM.Even at 500 mA g-1 after 250 cycles,high capacity of 155 mA h g-1 can still be obtained.
Guoquan Suo1，Dan Li1，Lei Feng1，Xiaojiang Hou1，Xiaohui Ye1，Li Zhang1，Qiyao Yu2，Yanling Yang1，Wei (Alex) Wang3
1. School of Materials Science and Engineering, Shaanxi University of Science and Technology2. Institute of Advanced Structure Technology, Beijing Institute of Technology3. Department of Materials Science and Engineering, College of Engineering, Peking University
摘 要：Increasing attention has been focused on potassium ion batteries（KIBs） as promising energy-sto rage system（ESS） owing to the abundance and low-cost of potassium resources.Here,SnS2/SnO2 hete rostructures were successfully fixed onto stainless steel mesh（SnS2/SnO2/SSM） through a facile two-step hydrothermal method and used as anodes for KIBs.Due to the advantages of SnS2/SnO2 heterostructures and good conductivity of SSM substrate,the SnS2/SnO2/SSM anodes display enhanced electrochemical performance.The SnS2/SnO2/SSM anodes deliver specific capacity of 394 mA h g-1 at 50 mA g-1 over 100 cycles,better than SnO2/SSM.Even at 500 mA g-1 after 250 cycles,high capacity of 155 mA h g-1 can still be obtained.
关键词：
