Yolk-Shell Antimony/Carbon: Scalable Synthesis and Structural Stability Study in Sodium Ion Batteries

Yang, Xuming1; Zhu, Yuanmin2; Wu, Duojie1; Li, Menghao1; He, Yaqi1; Huang, Limin3; Gu, Meng1

2022

10.1002/adfm.202111391

ADVANCED FUNCTIONAL MATERIALS   影响因子和分区

1616-301X

1616-3028

Antimony with compelling features in capacity and sodiation voltage has not been literally considered for practical applications, due to the lack of scalable fabrication methods that can make antimony stable enough in cycling and more affordable than hard carbon. Herein, the synthesis of yolk-shell antimony/carbon composites from cheap source materials is introduced, which only entails common apparatuses and is not energy intensive. The reduction of antimony trioxide coated with polypyrrole (PPy) creates hollow space and gives rise to the construction of yolk-shell structures. The material cost is evaluated to be approximate to$6.6 kg(-1), which is much lower than the price of standard hard carbon. A sublimation-reduction mechanism is revealed by a heating experiment performed in using environmental transmission electron microscopy (TEM). From real-time observation of the sodiation process, the feasibility of such structure designing is validated to counter expansion upon sodiation. The composite delivers a reversible capacity up to 612 mAh g(-1) and exhibits excellent stability in deep cycling. The stability is correlated with the confinement of antimony inside the carbon shell. Through further characterization using cryogenic TEM, the generation of solid-electrolyte interphases on both the antimony and carbon is confirmed.

antimony cryo-TEM in situ TEM solid-electrolyte interphase yolk-shell

SCI ; EI

英语

NI论文

第一 ; 通讯

National Natural Science Foundation of China[21802065,12004156] ; China Postdoctoral Science Foundation[2021M691398] ; Shenzhen Natural Science Fund[20200925154115001] ; Shenzhen Science and Technology Program[KQTD20190929173815000] ; Guangdong Innovative and Entrepreneurial Research Team Program[2019ZT08C044] ; Shenzhen Basic Research Fund[JCYJ20190809181601639]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000749680800001

WILEY-V C H VERLAG GMBH

20220511566756

Antimony compounds ; Carbon ; High resolution transmission electron microscopy ; Metal ions ; Shells (structures) ; Sodium-ion batteries ; Solid electrolytes ; Stability

Structural Members and Shapes:408.2 ; Metallurgy:531.1 ; Secondary Batteries:702.1.2 ; Optical Devices and Systems:741.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Polymers:815.1.1

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Dongguan Univ Technol, Sch Mat Sci & Engn, Dongguan 523808, Peoples R China
3.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China

Yang, Xuming,Zhu, Yuanmin,Wu, Duojie,et al. Yolk-Shell Antimony/Carbon: Scalable Synthesis and Structural Stability Study in Sodium Ion Batteries[J]. ADVANCED FUNCTIONAL MATERIALS,2022,32.

Yang, Xuming.,Zhu, Yuanmin.,Wu, Duojie.,Li, Menghao.,He, Yaqi.,...&Gu, Meng.(2022).Yolk-Shell Antimony/Carbon: Scalable Synthesis and Structural Stability Study in Sodium Ion Batteries.ADVANCED FUNCTIONAL MATERIALS,32.

Yang, Xuming,et al."Yolk-Shell Antimony/Carbon: Scalable Synthesis and Structural Stability Study in Sodium Ion Batteries".ADVANCED FUNCTIONAL MATERIALS 32(2022).