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Free-Standing SnO2@rGO Anode via the Anti-solvent-assisted Precipitation for Superior Lithium Storage Performance.
Front Chem. 2019; 7:878.FC

Abstract

Metal oxides have been attractive as high-capacity anode materials for lithium-ion batteries. However, oxide anodes encounter drastic volumetric changes during lithium ion storage through the conversion reaction and alloying/dealloying processes, leading to rapid capacity decay and poor cycling stability. Here, we report a free-standing SnO2@reduced graphene oxide (SnO2@rGO) composite anode, in which SnO2 nanoparticles are tightly wrapped within wrinkled rGO sheets. The SnO2@rGO sheet is assembled in high porosity via an anti-solvent-assisted precipitation of dispersed SnO2 nanoparticles and graphene oxide sheets in the distilled water, followed by the filtration and post-annealing processes. Significantly enhanced lithium storage performance has been obtained of the SnO2@rGO anode compared with the bare SnO2 anode material. A high charge capacity above 700 mAh g-1 can be achieved with a satisfying 95.6% retention after 50 cycles at a current density of 500 mA g-1, superior to reserved 126 mAh g-1 and a much lower 16.8% retention of the bare SnO2 anode. XRD pattern and HRTEM images of the cycled SnO2@rGO anode material verify the expected oxidation of Sn to SnO2 at the fully-charged state in the 50th cycle. In addition, FESEM and TEM images reveal the well-preserved free-standing structure after cycling, which accounts for high reversible capacity and excellent cycling stability of such a SnO2@rGO anode. This work provides a promising SnO2-based anode for high-capacity lithium-ion batteries, together with an effective fabrication adoptable to prepare different free-standing composite materials for device applications.

Authors+Show Affiliations

College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, China. Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, China.Department of Chemistry, Rutgers-Newark, The State University of New Jersey, Newark, NJ, United States.College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, China. Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, China.College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, China. Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, China.College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, China. Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, China.College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, China. Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, China.College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, China. Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, China.College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, China. Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31921789

Citation

Jiang, Shuli, et al. "Free-Standing SnO2@rGO Anode Via the Anti-solvent-assisted Precipitation for Superior Lithium Storage Performance." Frontiers in Chemistry, vol. 7, 2019, p. 878.
Jiang S, Huang R, Zhu W, et al. Free-Standing SnO2@rGO Anode via the Anti-solvent-assisted Precipitation for Superior Lithium Storage Performance. Front Chem. 2019;7:878.
Jiang, S., Huang, R., Zhu, W., Li, X., Zhao, Y., Gao, Z., Gao, L., & Zhao, J. (2019). Free-Standing SnO2@rGO Anode via the Anti-solvent-assisted Precipitation for Superior Lithium Storage Performance. Frontiers in Chemistry, 7, 878. https://doi.org/10.3389/fchem.2019.00878
Jiang S, et al. Free-Standing SnO2@rGO Anode Via the Anti-solvent-assisted Precipitation for Superior Lithium Storage Performance. Front Chem. 2019;7:878. PubMed PMID: 31921789.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Free-Standing SnO2@rGO Anode via the Anti-solvent-assisted Precipitation for Superior Lithium Storage Performance. AU - Jiang,Shuli, AU - Huang,Ruiming, AU - Zhu,Wenchang, AU - Li,Xiangyi, AU - Zhao,Yue, AU - Gao,Zhixiang, AU - Gao,Lijun, AU - Zhao,Jianqing, Y1 - 2019/12/19/ PY - 2019/09/06/received PY - 2019/12/05/accepted PY - 2020/1/11/entrez PY - 2020/1/11/pubmed PY - 2020/1/11/medline KW - SnO2 KW - anti-solvent-assisted precipitation KW - free-standing anode KW - lithium-ion battery KW - rGO SP - 878 EP - 878 JF - Frontiers in chemistry JO - Front Chem VL - 7 N2 - Metal oxides have been attractive as high-capacity anode materials for lithium-ion batteries. However, oxide anodes encounter drastic volumetric changes during lithium ion storage through the conversion reaction and alloying/dealloying processes, leading to rapid capacity decay and poor cycling stability. Here, we report a free-standing SnO2@reduced graphene oxide (SnO2@rGO) composite anode, in which SnO2 nanoparticles are tightly wrapped within wrinkled rGO sheets. The SnO2@rGO sheet is assembled in high porosity via an anti-solvent-assisted precipitation of dispersed SnO2 nanoparticles and graphene oxide sheets in the distilled water, followed by the filtration and post-annealing processes. Significantly enhanced lithium storage performance has been obtained of the SnO2@rGO anode compared with the bare SnO2 anode material. A high charge capacity above 700 mAh g-1 can be achieved with a satisfying 95.6% retention after 50 cycles at a current density of 500 mA g-1, superior to reserved 126 mAh g-1 and a much lower 16.8% retention of the bare SnO2 anode. XRD pattern and HRTEM images of the cycled SnO2@rGO anode material verify the expected oxidation of Sn to SnO2 at the fully-charged state in the 50th cycle. In addition, FESEM and TEM images reveal the well-preserved free-standing structure after cycling, which accounts for high reversible capacity and excellent cycling stability of such a SnO2@rGO anode. This work provides a promising SnO2-based anode for high-capacity lithium-ion batteries, together with an effective fabrication adoptable to prepare different free-standing composite materials for device applications. SN - 2296-2646 UR - https://www.unboundmedicine.com/medline/citation/31921789/Free_Standing_SnO2@rGO_Anode_via_the_Anti_solvent_assisted_Precipitation_for_Superior_Lithium_Storage_Performance_ L2 - https://doi.org/10.3389/fchem.2019.00878 DB - PRIME DP - Unbound Medicine ER -
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