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Categories: advanced materials, energy

BSA 12-01: Amorphous Germanium Oxide for Battery Electrodes

BNL Reference Number: BSA 12-01

Summary

There is great interest in developing novel anode materials for high-performance Li-ion batteries, which are key components of portable electronic devices, electric vehicles, and grid energy storage. In recent years, many researchers have focused on resolving the crucial problem of capacity fading in Li-ion batteries when carbon anodes are replaced by other Group IV elements (Si, Ge, or Sn) with much higher theoretical capacities. Some progress was achieved by using different nanostructures (mainly carbon coatings) so that cycle numbers reached between 100 and 200. However, obtaining longer stability via a simple process remains challenging. We have an emerging technology with a nanostructure of amorphous hierarchical porous GeOx that has a very stable capacity for several hundreds of cycles

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For more information about this technology, contact Kimberley Elcess, (631) 344-4151.