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This image shows the microbattery, created by Jie Xiao and Daniel Deng and colleagues, amid grains of rice. (Kristin Nolan)

Read: A Battery Small Enough to be Injected, Energetic Enough to Track Salmon

This image shows Jie Xiao holding the microbattery her team created. (Kristin Nolan)

The battery is created by hand by rolling up layers of materials in a "jellyroll" technique. (Kristin Nolan)

 

For more information, visit http://www.pnnl.gov/news/

 

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