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An Edible Rechargeable Battery.

Ivan K Ilic1, Valerio Galli1,2, Leonardo Lamanna1,3

  • 1Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia, Via R. Rubattino, 81, Milan, 20134, Italy.

Advanced Materials (Deerfield Beach, Fla.)
|March 15, 2023
PubMed
Summary
This summary is machine-generated.

Researchers developed a rechargeable edible battery using common food ingredients like riboflavin and quercetin. This innovation powers small electronic devices, paving the way for advanced gastrointestinal monitoring and food quality assessment.

Keywords:
activated carbonedible electronicsenergy storagegreen chemistrygreen electronicssustainability

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Area of Science:

  • Materials Science
  • Biotechnology
  • Food Science

Background:

  • Edible electronics offers a safer alternative to traditional ingestible devices for applications in medicine and food monitoring.
  • Current limitations in edible electronics include the lack of reliable edible power sources.
  • Existing research has established the feasibility of edible circuits and sensors.

Purpose of the Study:

  • To develop a fully edible, rechargeable power source for edible electronic devices.
  • To utilize common food ingredients and additives for battery fabrication.
  • To demonstrate the potential of edible batteries for powering small electronic systems.

Main Methods:

  • Immobilizing riboflavin (anode) and quercetin (cathode) on activated carbon.
  • Utilizing beeswax for encapsulation to create a fully edible battery structure.
  • Testing the battery's performance in terms of voltage and current output.

Main Results:

  • A proof-of-concept edible battery cell was successfully fabricated.
  • The battery operated at 0.65 V and sustained a current of 48 µA for 12 minutes.
  • The battery is constructed entirely from edible materials, including common food ingredients and additives.

Conclusions:

  • The developed edible battery represents a significant advancement for the field of edible electronics.
  • This innovation enables new possibilities for safer medical diagnostics, targeted therapeutics, and real-time food quality monitoring.
  • The rechargeable edible battery design opens doors for future exploration in ingestible sensing and electronic systems.