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Stamped microbattery electrodes based on self-assembled M13 viruses.


ABSTRACT: The fabrication and spatial positioning of electrodes are becoming central issues in battery technology because of emerging needs for small scale power sources, including those embedded in flexible substrates and textiles. More generally, novel electrode positioning methods could enable the use of nanostructured electrodes and multidimensional architectures in new battery designs having improved electrochemical performance. Here, we demonstrate the synergistic use of biological and nonbiological assembly methods for fabricating and positioning small battery components that may enable high performance microbatteries with complex architectures. A self-assembled layer of virus-templated cobalt oxide nanowires serving as the active anode material in the battery anode was formed on top of microscale islands of polyelectrolyte multilayers serving as the battery electrolyte, and this assembly was stamped onto platinum microband current collectors. The resulting electrode arrays exhibit full electrochemical functionality. This versatile approach for fabricating and positioning electrodes may provide greater flexibility for implementing advanced battery designs such as those with interdigitated microelectrodes or 3D architectures.

SUBMITTER: Nam KT 

PROVIDER: S-EPMC2582309 | biostudies-literature | 2008 Nov

REPOSITORIES: biostudies-literature

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Stamped microbattery electrodes based on self-assembled M13 viruses.

Nam Ki Tae KT   Wartena Ryan R   Yoo Pil J PJ   Liau Forrest W FW   Lee Yun Jung YJ   Chiang Yet-Ming YM   Hammond Paula T PT   Belcher Angela M AM  

Proceedings of the National Academy of Sciences of the United States of America 20080827 45


The fabrication and spatial positioning of electrodes are becoming central issues in battery technology because of emerging needs for small scale power sources, including those embedded in flexible substrates and textiles. More generally, novel electrode positioning methods could enable the use of nanostructured electrodes and multidimensional architectures in new battery designs having improved electrochemical performance. Here, we demonstrate the synergistic use of biological and nonbiological  ...[more]

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