Silicon core-mesoporous shell carbon spheres as high stability lithium-ion battery anode

Sengodu Prakash; Chunfei Zhang; Jong Deok Park; Fatemeh Razmjooei; Jong Sung Yu

doi:10.1016/j.jcis.2018.09.004

Silicon core-mesoporous shell carbon spheres as high stability lithium-ion battery anode

Sengodu Prakash, Chunfei Zhang, Jong Deok Park, Fatemeh Razmjooei, Jong Sung Yu

Department of Energy and Science and Engineering

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

68 Scopus citations

Abstract

An innovative and simple synthesis strategy of silicon nanoparticle (Si NP) core covered by mesoporous shell carbon (MSC) structure is demonstrated. The Si core@MSC (SCMSC) composite is developed for addressing the issues for Si anode material in lithium ion batteries (LIBs) such as high volume expansion and low electrical conductivity. Significant improvement in the electrochemical performance for the SCMSC anode is observed compared with bare Si anode. The SCMSC composite delivers an initial specific capacity of 2450 mAh g⁻¹ at 0.166 A g⁻¹ with Coulombic efficiency of 99.2% for 100 cycles. Compared to bare Si anode, the SCMSC anode exhibits much higher Li storage capacity, superior cyclability, and good rate capability, highlighting the advantages of hierarchical MSC in the SCMSC structure.

Original language	English
Pages (from-to)	47-54
Number of pages	8
Journal	Journal of Colloid and Interface Science
Volume	534
DOIs	https://doi.org/10.1016/j.jcis.2018.09.004
State	Published - 15 Jan 2019

Bibliographical note

Publisher Copyright:
© 2018 Elsevier Inc.

Keywords

Anode
High capacity
Li ion battery
Mesoporous shell carbon
Si nanoparticle

UN SDGs

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

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10.1016/j.jcis.2018.09.004

Cite this

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title = "Silicon core-mesoporous shell carbon spheres as high stability lithium-ion battery anode",

abstract = "An innovative and simple synthesis strategy of silicon nanoparticle (Si NP) core covered by mesoporous shell carbon (MSC) structure is demonstrated. The Si core@MSC (SCMSC) composite is developed for addressing the issues for Si anode material in lithium ion batteries (LIBs) such as high volume expansion and low electrical conductivity. Significant improvement in the electrochemical performance for the SCMSC anode is observed compared with bare Si anode. The SCMSC composite delivers an initial specific capacity of 2450 mAh g−1 at 0.166 A g−1 with Coulombic efficiency of 99.2\% for 100 cycles. Compared to bare Si anode, the SCMSC anode exhibits much higher Li storage capacity, superior cyclability, and good rate capability, highlighting the advantages of hierarchical MSC in the SCMSC structure.",

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doi = "10.1016/j.jcis.2018.09.004",

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T1 - Silicon core-mesoporous shell carbon spheres as high stability lithium-ion battery anode

AU - Prakash, Sengodu

AU - Zhang, Chunfei

AU - Park, Jong Deok

AU - Razmjooei, Fatemeh

AU - Yu, Jong Sung

PY - 2019/1/15

Y1 - 2019/1/15

N2 - An innovative and simple synthesis strategy of silicon nanoparticle (Si NP) core covered by mesoporous shell carbon (MSC) structure is demonstrated. The Si core@MSC (SCMSC) composite is developed for addressing the issues for Si anode material in lithium ion batteries (LIBs) such as high volume expansion and low electrical conductivity. Significant improvement in the electrochemical performance for the SCMSC anode is observed compared with bare Si anode. The SCMSC composite delivers an initial specific capacity of 2450 mAh g−1 at 0.166 A g−1 with Coulombic efficiency of 99.2% for 100 cycles. Compared to bare Si anode, the SCMSC anode exhibits much higher Li storage capacity, superior cyclability, and good rate capability, highlighting the advantages of hierarchical MSC in the SCMSC structure.

AB - An innovative and simple synthesis strategy of silicon nanoparticle (Si NP) core covered by mesoporous shell carbon (MSC) structure is demonstrated. The Si core@MSC (SCMSC) composite is developed for addressing the issues for Si anode material in lithium ion batteries (LIBs) such as high volume expansion and low electrical conductivity. Significant improvement in the electrochemical performance for the SCMSC anode is observed compared with bare Si anode. The SCMSC composite delivers an initial specific capacity of 2450 mAh g−1 at 0.166 A g−1 with Coulombic efficiency of 99.2% for 100 cycles. Compared to bare Si anode, the SCMSC anode exhibits much higher Li storage capacity, superior cyclability, and good rate capability, highlighting the advantages of hierarchical MSC in the SCMSC structure.

KW - Anode

KW - High capacity

KW - Li ion battery

KW - Mesoporous shell carbon

KW - Si nanoparticle

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DO - 10.1016/j.jcis.2018.09.004

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JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

ER -

Silicon core-mesoporous shell carbon spheres as high stability lithium-ion battery anode

Abstract

Bibliographical note

Keywords

UN SDGs

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