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Hollow SiO 2 microspheres coated with a nitrogen doped carbon layer are synthesized by using poly(acrylic acid) as a hollow structure template and dopamine as a carbon source. Based on a facile self-polymerization reaction, nitrogen doped carbon layer can be easily formed on the surface of hollow SiO 2 microspheres, which can effectively increase the electronic conductivity of anode material. Moreover, the hollow structure and N doped carbon layer can improve lithium ion diffusivity and accommodate volume change of SiO 2 anode simultaneously and hence exhibits excellent rate capabilities and superior cycling stability. For example, a high reversible specific capacity of 587 mA h g −1 can be remained at a current density of 1.0 A g −1 after 600 cycles, with 0.03% decade each cycle. © 2019 Elsevier Ltd
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Electrochimica Acta
ISSN: 0013-4686
Year: 2019
Volume: 306
Page: 106-112
6 . 2 1 5
JCR@2019
5 . 5 0 0
JCR@2023
ESI HC Threshold:184
JCR Journal Grade:1
CAS Journal Grade:2
Cited Count:
SCOPUS Cited Count: 54
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
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