典型文献
An ultralong-life SnS-based anode through phosphate-induced structural regulation for high-performance sodium ion batteries
文献摘要:
As a star representative of transition metal sulfides,SnS is viewed as a promising anode-material candi-date for sodium ion batteries due to its high theoretical capacity and unique layered structure.However,the extremely poor electrical conductivity and severe volume expansion strongly hinder its practical application while achieving a high reversible capacity with long-cyclic stability still remains a grand chal-lenge.Herein,different from the conventional enhancement method of elemental doping,we report a rational strategy to introduce PO43- into the SnS layers using phytic acid as the special phosphorus source.Intriguingly,the presence of PO43- in the form of Sn-O-P covalent bonds can act as a conductive pillar to buffer the volume expansion of SnS while expanding its interlay spacing to allow more Na+ storage,sup-ported by both experimental and theoretical evidences.Profiting from this effect combined with microstructural metrics by loading on high pyridine N-doped reduced graphene oxide,the as-prepared material presented an unprecedented ultra-long cyclic stability even after 10,000 cycles along with high reversible capacity and excellent full-cell performances.The findings herein open up new opportunities for elevating electrochemical performances of metal sulfides and provide inspirations for the fabrication of advanced electrode materials for broad energy use.
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作者姓名:
Ying Wang;Hongguan Li;Silin Chen;Boyin Zhai;Shuanlong Di;Guangying Gao;Sangwook Lee;Sangeun Chun;Shulan Wang;Li Li
作者机构:
School of Metallurgy,Northeastern University,Shenyang 110819,China;State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819,China;Department of Chemistry,College of Science,Northeastern University,Shenyang 110819,China;School of Materials Science and Engineering,Kyungpook National University,Daegu 41566,Republic of Korea;School of Industrial Technology Advances,Kyungpook National University,Daegu 41566,Republic of Korea
文献出处:
引用格式:
[1]Ying Wang;Hongguan Li;Silin Chen;Boyin Zhai;Shuanlong Di;Guangying Gao;Sangwook Lee;Sangeun Chun;Shulan Wang;Li Li-.An ultralong-life SnS-based anode through phosphate-induced structural regulation for high-performance sodium ion batteries)[J].科学通报(英文版),2022(20):2085-2095
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interlay
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AB值:
0.672218
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