Highly durable SiOC composite anode prepared by electrodeposition for lithium secondary batteries

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Abstract

A highly durable SiOC composite anode was prepared for use in lithium secondary batteries. The SiOC composite was synthesized by electrodeposition of SiCl 4. The composite anode delivered a discharge capacity of 1045 mA h per gram of Si at the 2000 th cycle and 842 mA h per gram of Si even at the 7200 th cycle. The reason for the excellent cyclability was investigated by methods including field emission scanning electron microscopy (FESEM), scanning transmission electron microscopy with an energy dispersive X-ray analyser (STEM-EDX), and X-ray photoelectron spectroscopy (XPS). The results revealed that the excellent cyclability was achieved by the homogeneous dispersion of SiO x and organic/inorganic compounds at the nanometre scale. The structural uniformity of the SiOC composite is believed to have suppressed the crack formation attributable to the stress resulting from the reaction of silicon with lithium during charge-discharge cycles. This journal is

Original languageEnglish
Pages (from-to)6500-6505
Number of pages6
JournalEnergy and Environmental Science
Volume5
Issue number4
DOIs
Publication statusPublished - 2012 Apr

Fingerprint

Secondary batteries
lithium
Lithium
Electrodeposition
Anodes
Composite materials
scanning electron microscopy
Inorganic compounds
inorganic compound
Scanning electron microscopy
field method
Silicon
Crack initiation
Field emission
X-ray spectroscopy
silicon
transmission electron microscopy
crack
X ray photoelectron spectroscopy
Transmission electron microscopy

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Environmental Chemistry
  • Pollution
  • Nuclear Energy and Engineering

Cite this

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title = "Highly durable SiOC composite anode prepared by electrodeposition for lithium secondary batteries",
abstract = "A highly durable SiOC composite anode was prepared for use in lithium secondary batteries. The SiOC composite was synthesized by electrodeposition of SiCl 4. The composite anode delivered a discharge capacity of 1045 mA h per gram of Si at the 2000 th cycle and 842 mA h per gram of Si even at the 7200 th cycle. The reason for the excellent cyclability was investigated by methods including field emission scanning electron microscopy (FESEM), scanning transmission electron microscopy with an energy dispersive X-ray analyser (STEM-EDX), and X-ray photoelectron spectroscopy (XPS). The results revealed that the excellent cyclability was achieved by the homogeneous dispersion of SiO x and organic/inorganic compounds at the nanometre scale. The structural uniformity of the SiOC composite is believed to have suppressed the crack formation attributable to the stress resulting from the reaction of silicon with lithium during charge-discharge cycles. This journal is",
author = "Hiroki Nara and Tokihiko Yokoshima and Toshiyuki Momma and Tetsuya Osaka",
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T1 - Highly durable SiOC composite anode prepared by electrodeposition for lithium secondary batteries

AU - Nara, Hiroki

AU - Yokoshima, Tokihiko

AU - Momma, Toshiyuki

AU - Osaka, Tetsuya

PY - 2012/4

Y1 - 2012/4

N2 - A highly durable SiOC composite anode was prepared for use in lithium secondary batteries. The SiOC composite was synthesized by electrodeposition of SiCl 4. The composite anode delivered a discharge capacity of 1045 mA h per gram of Si at the 2000 th cycle and 842 mA h per gram of Si even at the 7200 th cycle. The reason for the excellent cyclability was investigated by methods including field emission scanning electron microscopy (FESEM), scanning transmission electron microscopy with an energy dispersive X-ray analyser (STEM-EDX), and X-ray photoelectron spectroscopy (XPS). The results revealed that the excellent cyclability was achieved by the homogeneous dispersion of SiO x and organic/inorganic compounds at the nanometre scale. The structural uniformity of the SiOC composite is believed to have suppressed the crack formation attributable to the stress resulting from the reaction of silicon with lithium during charge-discharge cycles. This journal is

AB - A highly durable SiOC composite anode was prepared for use in lithium secondary batteries. The SiOC composite was synthesized by electrodeposition of SiCl 4. The composite anode delivered a discharge capacity of 1045 mA h per gram of Si at the 2000 th cycle and 842 mA h per gram of Si even at the 7200 th cycle. The reason for the excellent cyclability was investigated by methods including field emission scanning electron microscopy (FESEM), scanning transmission electron microscopy with an energy dispersive X-ray analyser (STEM-EDX), and X-ray photoelectron spectroscopy (XPS). The results revealed that the excellent cyclability was achieved by the homogeneous dispersion of SiO x and organic/inorganic compounds at the nanometre scale. The structural uniformity of the SiOC composite is believed to have suppressed the crack formation attributable to the stress resulting from the reaction of silicon with lithium during charge-discharge cycles. This journal is

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