| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10266919 | Electrochemistry Communications | 2011 | 4 Pages |
Abstract
Al-Si-graphite composite with low 7.9Â wt.% Si was synthesized by ball-milling eutectic Al-Si powder and graphite. Its reversible capacity remained above 0.65Â Ah/g after 10 cycles, corresponding to 1.6Â Ah/cm3, 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.
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Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Wenchao Zhou, Shailesh Upreti, M. Stanley Whittingham,