Journal
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
Volume 55, Issue -, Pages 167-172Publisher
JOURNAL MATER SCI TECHNOL
DOI: 10.1016/j.jmst.2019.05.074
Keywords
SnS2/SnO2; Heterostructures; Potassium-ion batteries; Anode
Funding
- National Natural Science Foundation of China [51704188, 51464020, 51702199, 61705125, 51802181]
- research starting foundationfrom Shaanxi University of Science and Technology [2018GBJ-04]
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Increasing attention has been focused on potassium ion batteries (KIBs) as promising energy-storage system (ESS) owing to the abundance and low-cost of potassium resources. Here, SnS2/SnO2 heterostructures 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 ISSM anodes display enhanced electrochemical performance. The SnS2/SnO2/SSM anodes deliver specific capacity of 394 mAh 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. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
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