January 26, 2009

Nano tin electrodes beat graphite

Shape tin oxide into the right nanostructures and you have inexpensive, high-capacity electrodes for lithium-ion batteries.

Tin oxide nanowires studded with clumps of tin atoms and flower-like tin oxide nanostructures -- the results of separate research efforts -- have more than twice the capacity of graphite when used as anodes in lithium-ion batteries.

Nanostructured tin oxide electrodes could be used in high-capacity lithium-ion batteries that power vehicles and store electricity generated by renewable sources.

Research paper:
Hybrid Tin Oxide Nanowires As Stable and High Capacity Anodes for Li-Ion Batteries
Nano Letters, published online January 21, 2009
Facile Synthesis of Tin Oxide Nanoflowers: A Potential High-Capacity Lithium-Ion-Storage Material
Langmuir, published online December 24, 2008

Researchers' homepages:
Advanced Materials Research Group, University of Louisville
Gamini U. Sumanasekera
State Key Laboratory of Superhard Materials, Jilin University
Bo Zou
William W. Yu

Related stories and briefs:
Porous silicon boosts lithium batteries -- related research

Back to ERN January 26/February 2, 2009



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