2018
DOI: 10.1016/j.carbon.2018.01.095
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Antimony oxychloride/graphene aerogel composite as anode material for sodium and lithium ion batteries

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Cited by 34 publications
(17 citation statements)
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“…Sb is a promising anode material for high-power lithium-ion batteries due to its moderate operating potential of 0.8 V versus Li/Li + , and higher specific capacity of 660 mAh g –1 , compared with commercial graphite and lithium titanate. However, the capacity of Sb electrodes still decays significantly with cycling, which was ascribed to the formation of intermediate phases between Sb and lithium . In addition, Sb electrodes undergo a large volume expansion (134%) during lithiation, resulting in severe mechanical issues such as pulverization, loss of contact, and delamination. To overcome these issues, the most common approach is to introduce carbon-based or other inactive matrixes, such as Ni, Cu, and Co, to buffer the large volume expansion. A carbon matrix is effective in suppressing material cracking and improving electrical conductivity, but the mass production of nanocarbon materials is rather difficult. Incorporation of inactive matrixes into Sb reduces the relative amount of volume expansion but at the same time decreases its specific capacity to less than 300 mAh g –1 , which is even lower than that of commercial graphite.…”
Section: Introductionmentioning
confidence: 99%
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“…Sb is a promising anode material for high-power lithium-ion batteries due to its moderate operating potential of 0.8 V versus Li/Li + , and higher specific capacity of 660 mAh g –1 , compared with commercial graphite and lithium titanate. However, the capacity of Sb electrodes still decays significantly with cycling, which was ascribed to the formation of intermediate phases between Sb and lithium . In addition, Sb electrodes undergo a large volume expansion (134%) during lithiation, resulting in severe mechanical issues such as pulverization, loss of contact, and delamination. To overcome these issues, the most common approach is to introduce carbon-based or other inactive matrixes, such as Ni, Cu, and Co, to buffer the large volume expansion. A carbon matrix is effective in suppressing material cracking and improving electrical conductivity, but the mass production of nanocarbon materials is rather difficult. Incorporation of inactive matrixes into Sb reduces the relative amount of volume expansion but at the same time decreases its specific capacity to less than 300 mAh g –1 , which is even lower than that of commercial graphite.…”
Section: Introductionmentioning
confidence: 99%
“…In addition, Sb electrodes undergo a large volume expansion (134%) during lithiation, resulting in severe mechanical issues such as pulverization, loss of contact, and delamination. To overcome these issues, the most common approach is to introduce carbon-based or other inactive matrixes, such as Ni, Cu, and Co, to buffer the large volume expansion. A carbon matrix is effective in suppressing material cracking and improving electrical conductivity, but the mass production of nanocarbon materials is rather difficult. Incorporation of inactive matrixes into Sb reduces the relative amount of volume expansion but at the same time decreases its specific capacity to less than 300 mAh g –1 , which is even lower than that of commercial graphite. The use of active matrixes such as Sn, Bi, In, Ag, and Mg was also reported previously. , Although specific capacity is increased with the introduction of Sn, the cycle performance of the Sn–Sb electrodes was still poor because of phase segregation of Sn and Sb and a gradual thickening of the solid electrolyte interphase layer. , Sb–Bi alloys showed improved stability during cycling, but due to the large weight of Bi, the capacity was only around 300 mAh g –1 .…”
Section: Introductionmentioning
confidence: 99%
“…On the other hand, in order to improve cycle life, compounding antimony oxychloride with other functional materials can also bring significant results. For example, the composited material of pure phase Sb 4 O 5 Cl 2 particles and graphene aerogel can have a better electrochemical performance used as anode of SIBs, the specific capacity can be maintained at 400 mAh g −1 after 50 cycles [115].…”
Section: Sb/oxide Compositementioning
confidence: 99%
“…Likewise, Liu et al reported that Sb 2 MoO 6 /RGO composite exhibits capacity of 430 mAh g −1 at 0.05 A g −1 and conserves 270 mAh g −1 at a high current density of 4 A g −1 . Most recently, Lakshmi et al synthesized Sb 4 O 5 Cl 2 –graphene composite and discussed that the prepared 3D networked antimony oxychloride graphene composite facilitates a better charge transfer and strong buffering to alleviate the structural variation of Sb 4 O 5 Cl 2 during cycling …”
Section: Carbon Supported Antimony Composite For Sibsmentioning
confidence: 99%