Research Article

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2021, 14(12): 4696–4703

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https://doi.org/10.1007/s12274-021-3407-y

Dandelion-Like Bi2S3/rGO hierarchical microspheres as highperformance anodes for potassium-ion and half/full sodium-ion batteries

Xiuping Sun1, Lu Wang1, Chuanchuan Li1, Debao Wang2, Iqbal Sikandar1, Ruxia Man1, Fang Tian1, Yitai Qian1, and Liqiang Xu1,3 (✉)

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1 Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
2 College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
3 Shandong Provincial Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage & Novel Cell Technology, Liaocheng University, Liaocheng City 252059, China

Keywords: potassium ion battery, sodium ion battery, full cell, Bi2S3, anode material
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  • Abstract
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Sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs) have been considered as attractive alternatives for next-generation battery systems, which have promising application potential due to their earth abundance of potassium and sodium, high capacity and suitable working potential, however, the design and application of bi-functional high-performance anode still remain a great challenge up to date. Bismuth sulfide is suitable as anode owing to its unique laminar structure with relatively large interlayer distance to accommodate larger radius ions, high theoretical capacity and high volumetric capacity etc. In this study, dandelion-like Bi2S3/rGO hierarchical microspheres as anode material for PIBs displayed reversible capacity, and 206.91 mAh·g−1 could be remained after 1,200 cycles at a current density of 100 mA·g−1. When applied as anode materials for SIBs, 300 mAh·g−1 could be retained after 300 cycles at 2 A·g−1 and its initial Coulombic efficiency is as high as 97.43%. Even at high current density of 10 A·g−1, 120.3 mAh·g−1 could be preserved after 3,400 cycles. The Na3V2(PO4)3@rGO//Bi2S3/rGO sodium ion full cells were successfully assembled which displays stable performance after 60 cycles at 100 mA·g−1. The above results demonstrate that Bi2S3/rGO has application potential as high performance bi-functional anode for PIBs and SIBs.
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Dandelion-Like Bi2S3/rGO hierarchical microspheres as highperformance anodes for potassium-ion and half/full sodium-ion batteries. Nano Res. 2021, 14(12): 4696–4703 https://doi.org/10.1007/s12274-021-3407-y

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