Electrodeposited Si film with excellent stability and high rate performance for lithium-ion battery anodes

Guangyu Zhao; Yufeng Meng; Naiqing Zhang; Kening Sun

doi:10.1016/j.matlet.2012.02.064

Electrodeposited Si film with excellent stability and high rate performance for lithium-ion battery anodes

Guangyu Zhao, Yufeng Meng, Naiqing Zhang, Kening Sun^*

^*Corresponding author for this work

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

46 Citations (Scopus)

Abstract

Si film was prepared by electrodepositing on Ni substrate. SEM images and EDS analysis illustrated that the Si film was obtained successfully. The Si film anodes displayed a high reversible specific capacity (over 2800 mAhg ^{- 1}), an excellent stability (little fading after 80 cycles at a current of 0.36 Ag ^{- 1}, corresponding to 0.1 C), high rate performances (850 mAhg ^{- 1} at a current of 18 Ag ^{- 1}, corresponding to 5 C) and high electrochemical stability (The capacity was still more than 2600 mAhg ^{- 1}, when the current density returned to 0.36 Ag ^{- 1} after cycling at the high current densities). Electrochemical impedance spectroscopy tests showed that the Li ⁺ diffusion coefficient of the Si film was much higher than the pristine Si nanoparticles, which resulted in the high rate performances of the Si film.

Original language	English
Pages (from-to)	55-58
Number of pages	4
Journal	Materials Letters
Volume	76
DOIs	https://doi.org/10.1016/j.matlet.2012.02.064
Publication status	Published - 1 Jun 2012
Externally published	Yes

Keywords

Electrodeposition
Energy storage and conversion
Thin films

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.matlet.2012.02.064

Cite this

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title = "Electrodeposited Si film with excellent stability and high rate performance for lithium-ion battery anodes",

abstract = "Si film was prepared by electrodepositing on Ni substrate. SEM images and EDS analysis illustrated that the Si film was obtained successfully. The Si film anodes displayed a high reversible specific capacity (over 2800 mAhg - 1), an excellent stability (little fading after 80 cycles at a current of 0.36 Ag - 1, corresponding to 0.1 C), high rate performances (850 mAhg - 1 at a current of 18 Ag - 1, corresponding to 5 C) and high electrochemical stability (The capacity was still more than 2600 mAhg - 1, when the current density returned to 0.36 Ag - 1 after cycling at the high current densities). Electrochemical impedance spectroscopy tests showed that the Li + diffusion coefficient of the Si film was much higher than the pristine Si nanoparticles, which resulted in the high rate performances of the Si film.",

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author = "Guangyu Zhao and Yufeng Meng and Naiqing Zhang and Kening Sun",

year = "2012",

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doi = "10.1016/j.matlet.2012.02.064",

language = "English",

volume = "76",

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journal = "Materials Letters",

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TY - JOUR

T1 - Electrodeposited Si film with excellent stability and high rate performance for lithium-ion battery anodes

AU - Zhao, Guangyu

AU - Meng, Yufeng

AU - Zhang, Naiqing

AU - Sun, Kening

PY - 2012/6/1

Y1 - 2012/6/1

N2 - Si film was prepared by electrodepositing on Ni substrate. SEM images and EDS analysis illustrated that the Si film was obtained successfully. The Si film anodes displayed a high reversible specific capacity (over 2800 mAhg - 1), an excellent stability (little fading after 80 cycles at a current of 0.36 Ag - 1, corresponding to 0.1 C), high rate performances (850 mAhg - 1 at a current of 18 Ag - 1, corresponding to 5 C) and high electrochemical stability (The capacity was still more than 2600 mAhg - 1, when the current density returned to 0.36 Ag - 1 after cycling at the high current densities). Electrochemical impedance spectroscopy tests showed that the Li + diffusion coefficient of the Si film was much higher than the pristine Si nanoparticles, which resulted in the high rate performances of the Si film.

AB - Si film was prepared by electrodepositing on Ni substrate. SEM images and EDS analysis illustrated that the Si film was obtained successfully. The Si film anodes displayed a high reversible specific capacity (over 2800 mAhg - 1), an excellent stability (little fading after 80 cycles at a current of 0.36 Ag - 1, corresponding to 0.1 C), high rate performances (850 mAhg - 1 at a current of 18 Ag - 1, corresponding to 5 C) and high electrochemical stability (The capacity was still more than 2600 mAhg - 1, when the current density returned to 0.36 Ag - 1 after cycling at the high current densities). Electrochemical impedance spectroscopy tests showed that the Li + diffusion coefficient of the Si film was much higher than the pristine Si nanoparticles, which resulted in the high rate performances of the Si film.

KW - Electrodeposition

KW - Energy storage and conversion

KW - Thin films

UR - http://www.scopus.com/inward/record.url?scp=84857972391&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2012.02.064

DO - 10.1016/j.matlet.2012.02.064

M3 - Article

AN - SCOPUS:84857972391

SN - 0167-577X

VL - 76

SP - 55

EP - 58

JO - Materials Letters

JF - Materials Letters

ER -

Electrodeposited Si film with excellent stability and high rate performance for lithium-ion battery anodes

Abstract

Keywords

UN SDGs

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