Electrochemical performance of Al-Si-graphite composite as anode for lithium-ion batteries

Wenchao Zhou; Shailesh Upreti; M. Stanley Whittingham

doi:10.1016/j.elecom.2010.12.001

Electrochemical performance of Al-Si-graphite composite as anode for lithium-ion batteries

Wenchao Zhou
, Shailesh Upreti
, M. Stanley Whittingham

Chemistry

Binghamton University

State University of New York Binghamton University

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

63 Scopus citations

Abstract

Al-Si-graphite composite with low 7.9 wt.% Si was synthesized by ball-milling eutectic Al-Si powder and graphite. Its reversible capacity remained above 0.65 Ah/g after 10 cycles, corresponding to 1.6 Ah/cm ³, almost double that of graphite alone. Ex-situ XRD indicates that in Al-graphite the large volume change during lithium insertion/removal causes the active material to become isolated and not available for electrochemical reactions, while in Al-Si-graphite all the material remains available.

Original language	English
Pages (from-to)	158-161
Number of pages	4
Journal	Electrochemistry Communications
Volume	13
Issue number	2
DOIs	https://doi.org/10.1016/j.elecom.2010.12.001
State	Published - Feb 2011

Keywords

Aluminum
Anode
Lithium battery

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10.1016/j.elecom.2010.12.001

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title = "Electrochemical performance of Al-Si-graphite composite as anode for lithium-ion batteries",

abstract = "Al-Si-graphite composite with low 7.9 wt.\% Si was synthesized by ball-milling eutectic Al-Si powder and graphite. Its reversible capacity remained above 0.65 Ah/g after 10 cycles, corresponding to 1.6 Ah/cm 3, almost double that of graphite alone. Ex-situ XRD indicates that in Al-graphite the large volume change during lithium insertion/removal causes the active material to become isolated and not available for electrochemical reactions, while in Al-Si-graphite all the material remains available.",

keywords = "Aluminum, Anode, Lithium battery",

author = "Wenchao Zhou and Shailesh Upreti and Whittingham, \{M. Stanley\}",

year = "2011",

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doi = "10.1016/j.elecom.2010.12.001",

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journal = "Electrochemistry Communications",

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AU - Zhou, Wenchao

AU - Upreti, Shailesh

AU - Whittingham, M. Stanley

PY - 2011/2

Y1 - 2011/2

N2 - Al-Si-graphite composite with low 7.9 wt.% Si was synthesized by ball-milling eutectic Al-Si powder and graphite. Its reversible capacity remained above 0.65 Ah/g after 10 cycles, corresponding to 1.6 Ah/cm 3, almost double that of graphite alone. Ex-situ XRD indicates that in Al-graphite the large volume change during lithium insertion/removal causes the active material to become isolated and not available for electrochemical reactions, while in Al-Si-graphite all the material remains available.

AB - Al-Si-graphite composite with low 7.9 wt.% Si was synthesized by ball-milling eutectic Al-Si powder and graphite. Its reversible capacity remained above 0.65 Ah/g after 10 cycles, corresponding to 1.6 Ah/cm 3, almost double that of graphite alone. Ex-situ XRD indicates that in Al-graphite the large volume change during lithium insertion/removal causes the active material to become isolated and not available for electrochemical reactions, while in Al-Si-graphite all the material remains available.

KW - Aluminum

KW - Anode

KW - Lithium battery

UR - https://www.scopus.com/pages/publications/79551529819

U2 - 10.1016/j.elecom.2010.12.001

DO - 10.1016/j.elecom.2010.12.001

M3 - Article

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JO - Electrochemistry Communications

JF - Electrochemistry Communications

IS - 2

ER -

Electrochemical performance of Al-Si-graphite composite as anode for lithium-ion batteries

Abstract

Keywords

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