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Updated: May 18, 2026
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Preparation of Silicon Nanowire Field-effect Transistor for Chemical and Biosensing Applications
Published on: April 21, 2016
Roll up nanowire battery from silicon chips.
Alexandru Vlad1, Arava Leela Mohana Reddy, Anakha Ajayan
1Department of Mechanical Engineering and Materials Science, Rice University, Houston, TX 77005, USA.
Summary
Researchers developed a new method to create flexible lithium-ion battery components from recycled silicon chips. This process uses a continuous etch-infiltrate-peel cycle to produce multiple battery devices from a single wafer.
Area of Science:
- Materials Science
- Electrochemistry
- Sustainable Energy
Background:
- Lithium-ion batteries are crucial for portable electronics and electric vehicles.
- Recycling silicon wafers for battery component fabrication presents a sustainable approach.
- Developing mechanically flexible and scalable battery designs is an ongoing challenge.
Purpose of the Study:
- To report a novel approach for fabricating lithium-ion battery components from silicon chips.
- To demonstrate a continuous and repeatable process for creating battery devices.
- To develop a mechanically flexible and scalable lithium-polymer silicon nanowire (LIPOSIL) battery.
Main Methods:
- Etching vertically aligned silicon nanowires from recycled silicon wafers.
- Capturing nanowires in a polymer matrix acting as gel-electrolyte and separator.
- Conformal deposition of porous copper nanoshells around silicon nanowires for electrode stabilization and current collection.
- Employing a continuous etch-infiltrate-peel cycle for device fabrication.
Main Results:
- Successful fabrication of multiple battery devices from a single silicon wafer.
- Demonstration of an operational 3.4 V lithium-polymer silicon nanowire (LIPOSIL) full cell battery.
- The resulting batteries are mechanically flexible and scalable to large dimensions.
- Stabilized electrodes with efficient current collection due to copper nanoshells.
Conclusions:
- The developed etch-infiltrate-peel process offers an efficient method for producing Li-ion battery components from recycled silicon.
- The LIPOSIL battery demonstrates promising performance, flexibility, and scalability for future energy storage applications.
- This approach contributes to sustainable battery manufacturing by utilizing recycled materials.
