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Design of Resilient Silicon-Carbon Nanocomposite Anodes


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Januar 2015

Beschreibung

Beschreibung

Si-based anodes have recently received considerable attention for use in Li-ion batteries, due to their extremely high specific capacity - an order of magnitude beyond that offered by conventional graphite anode materials. However, during the lithiation process, Si-based anodes undergo extreme increases in volume, potentially by more than 300 %. The stresses produced within the electrode by these volume changes can damage the electrode, causing the cell to rapidly fail and lose capacity. These problems can be overcome by producing new anode materials incorporating both Si and C, which may offer a favorable combination of the best properties of both materials, and which can be designed with internal porosity, thereby buffering the high strains produced during battery charge and discharge. In this work we have developed several novel synthesis processes for producing internally porous Si-C nanocomposite anode materials for Li-ion batteries. We have also investigated the influence of a range of different parameters on the electrochemical performance of these materials.

Portrait

Benjamin Hertzberg obtained his PhD in Materials Science & Engineering at Georgia Tech. He is currently a postdoctoral research associate at Princeton University. His research interests are primarily in the development of light-ion battery systems and in the study of electrochemically-driven phase transformations.
EAN: 9783659667633
ISBN: 3659667633
Untertitel: Paperback. Sprache: Englisch.
Verlag: LAP Lambert Academic Publishing
Erscheinungsdatum: Januar 2015
Seitenanzahl: 160 Seiten
Format: kartoniert
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